Magical Plastic Bag Experiment

leak proof plastic bag experiment

Magical Plastic Bag Experiment | TinkerLab

Here’s a fun experiment that won’t take a lot of time, and it’s more than likely that you have all the “ingredients” around the house. I did this with my three and a half year old, and it would be relevant for preschoolers and elementary-age children.

The idea that we’re testing here is what will happen if we poke a sharp pencil through a plastic bag of water. Will the water leak through the holes? Will the water spill out? Or will the bag reseal around the pencils, keeping the water inside?

When my 3-year old daughter (N) and I tried this out, we worked with the question, “what will happen if we poke pencils into a bag full of water?” That seemed more age-appropriate and tangible for her.

Magical Plastic Bag Experiment | TinkerLab

Supplies

  • Zip-up Bag
  • Water
  • Sharpened Pencils

We filled a zip-up bag about half-way with water and sealed it up. I held the bag high over a sink and N poked the pencils straight through the bag, from one side to the other. This is where my fancy photography skills come into play, holding the bag with one hand and snapping a photo with the other. Are you impressed?

Make sure that the pencil doesn’t keep traveling through the bag or you’ll have water leaks.

Magical Plastic Bag Experiment | TinkerLab

Keep adding pencils until you’ve had enough. Before removing the pencils, take a moment to talk about what you see. When the pencil goes into the bag, the bag seems to magically seal itself around the pencil.

Magical Plastic Bag Experiment | TinkerLab

When you’re done, remove the pencils over a sink.

The Science Behind the Experiment

Plastic bags are made out of polymers, chains of molecules that are flexible and give the bag its stretchiness. When the sharp pencil pokes through the bag, the stretchy plastic hugs around the pencil, creating a watertight seal around the pencil…and the bag doesn’t leak.

More Polymer Fun

Now I’m really excited for us to try poking skewers through balloons without popping them (QuestaCon Science Squad) and make our own kazoos from toilet paper rolls and plastic bags (Kazoologist). Steve Spangler Science is also an amazing place to go for projects like this, and you’ll find endless polymer-related ideas over there.

You could also make your own polymer by mixing up a batch of fun and flubbery Gak (a mixture of water, white glue, and borax). We’ve done this multiple times, and my kids can’t get enough of it.

More Science Projects for Kids

If you enjoyed this project, you’ll love this article: Science Fair Project Ideas.

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In case you blinked and missed it, Tinkerlab rounds up all the great stuff on the internets on keeping you and your critters creative and wraps it up for you in a tidy newsletter! (And throws in some secret giveaways for good measure!)  – Yuliya P., San Francisco, CA

Join our community and you’ll learn:

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Is it Magnetic? Testing Objects for Magnetism.

magnets and water

How was your weekend? We took a mini-vacation to play in the snow and I enjoyed a little computer break along the way. I thought I could get online with my phone, but it turned out that the reception was horrible and I’ve been completely out-of-touch! It was probably a good thing, as I could really focus on my family and be as rested as possible when my one-year old woke up, inconsolable, for 2 hours in the middle of the night! I also want to formally thank my good friend Melissa from The Chocolate Muffin Tree who checked in to make sure I was okay! How lucky am I?

I’ve been on a science kick lately. Maybe because my 3-year old is completely self-serve in the art department or maybe because I’ve checked every science for kids book out of our local library? If you’re in the market for a great book of kids science experiments for ages 8 and up, I checked out The Science Explorer Out and about: Fantastic Science Experiments Your Family Can Do Anywhere (Science Explorer Out & about)and it’s phenomenal. It was written in 1997 and looks a little bit dated, but the concepts are solid and it stands the test of time. If you’ve ever been to San Francisco’s Exploratorium or if you’re familiar with their publications, you’ll feel connected to this book.

magnet and water experiment materials

Today’s experiment is similar to one we’ve done before with paper clips +magnets (Traveling Magnets), and this takes it up a notch with a few more magnet surprises and discoveries. Here’s what you’ll need…

Materials

  • Glass or vase of water. Thin glass works better than thick.
  • Pipe cleaners and/or paper clips
  • Strong magnets
  • Scissors
  • Small magnetic and non-magnetic objects

pipe cleaners in water experiment

Cut the pipe cleaners up and add them to the vase of water and mix them up so the pipe cleaners sink. Three-year old N loved doing this step herself.

Using your magnet/s try to pull the pipe cleaners up the side of the vase. Once they reach the top, you can retrieve them or drop them back in.

It’s like fishing!

testing magnets experiment kids

This opened up a conversation about what would stick to the magnets, so I pulled out a handful of small metal and non-metal objects for us to test.

Meanwhile, my 1-year old enjoyed stirring the water and fishing pipe cleaners out with her hands.

testing magnets experiment kids

N understood that the magnet would only stick to metal and quickly ruled out rubber bands and post-it notes from the “Is it magnetic?” list, but we also learned that the magnet wouldn’t stick to ALL metals.

And that was a surprise!

magnets on hardwood floor nails

One of the funnest surprises, however, was when a magnet fell onto the floor and stuck to a hidden nail! We dropped the rest of our magnets onto the floor and flicked them from nail to nail, watching them dance from floorboard to floorboard.

One more thought — I kept a close eye on my 17 month old throughout because our magnets are so tiny — just a thought that you might want to do the same or find some big magnets for the under 3 y.o. crowd.

What did your weekend look like? Have you been able to take a technology break? And have you had any fun magnet discoveries?

 

 

Science Projects for Kids | Yeast and Sugar Experiment

yeast experiment

Science Projects for Kids | Yeast and Sugar ExperimentThis fun science project for kids is easy to set up with materials that you may already have on hand!

I’ve been baking bread just about every day for the past three weeks (nothing too crazy since it’s all done in the bread maker), but last week my 3.5 year old and I got into a discussion about the properties of yeast.

We like to tinker and  experiment — big surprise, I know — and decided to see what would happen if we mixed yeast with warm water.

N took this job very seriously, poured the water into a bowl, added a couple teaspoons of yeast, and waited a few patient minutes before she said, “it makes a brownish color.” True, and to make it bubble like it does in bread, we needed to activate it with sugar.

What’s so great about an experiment like this is that it’s easy to do with household materials, and it’s ripe for authentic child-generated questions and observations. When I asked what she thought would happen if we added sugar to the yeast she said, “I don’t know! Let’s mix them and find out!.”

 

Science Projects for Kids | Yeast and Sugar Experiment

Supplies: Yeast and Sugar Science Project

  • Sugar, 2 tablespoons
  • Active Dry Yeast, 1 packet or 2 1/4 tablespoons
  • Balloon
  • Warm water (105-115 degrees F, 40.5-46 degrees C)
  • Mixing bowl + funnel
  • Bottle that you can fit a balloon over

Science Projects for Kids | Yeast and Sugar Experiment

Mix the yeast and sugar into the warm water and stir. I noticed that N was sniffing the concoction and asked her what it smelled like. She said “poop.” I could see what she was saying. Consider yourself warned.

Once it all dissolves, pour the mixture into the bottle and cover the bottle with the balloon.

Science Projects for Kids | Yeast and Sugar Experiment

After a few minutes you’ll be amazed by something like this!

Science Projects for Kids | Yeast and Sugar Expriement

Will it blow off the bottle?

N wanted to feel it as it filled with air. She noticed the balloon was getting bigger and wanted to know how big it would get, wondering out loud, “will it fill up all the way and blow off the bottle?”

Good question!

Science Projects for Kids | Yeast and Sugar Experiment

My handy-dandy ship captain sister (no joke — that’s her job!) was visiting, and put herself right to work as chief measurer.

Science Projects for Kids | Yeast and Sugar Experiment

Move it to a safe spot

Once the bottle filled up completely, we moved the whole operation to the sink. The bubbles were slow-moving, and there was nothing to worry ourselves with, but N enjoyed pulling the balloon off and watching the foam slowly pour over the bottle’s top.

Science Projects for Kids | Yeast and Sugar Experiment

More ideas for this science project

As we went through the process, I thought of a few fun extensions for older kids or those who want to take this further. You could play around with food coloring/liquid watercolors, have a few bottles going at once and compare the results of different sugar:yeast ratios, or compare the results of different water temperatures.

I found my recipe at The Exploratorium’s Science of Cooking series, where we also learned that as the yeast eats the sugar it makes carbon dioxide, which is essentially the same process that yeast goes through in our bread dough.

Mmmmm. I’m off to eat some whole wheat cranberry walnut oat bread. Toasted. With butter and Maldon salt. How do you like your bread? And have you played around with yeast concoctions?

More Science Projects for Kids

If you enjoyed this project, you’ll love this article: Science Fair Project Ideas.

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TinkerLab Newsletter

In case you blinked and missed it, TinkerLab rounds up all the great stuff on the internets on keeping you and your critters creative and wraps it up for you in a tidy newsletter! (And throws in some secret giveaways for good measure!)  – Yuliya P., San Francisco, CA

Join our community and you’ll learn:

  • How to simplify your life and make more room for creativity
  • How to make hands-on making a part of your everyday life
  • Easy, actionable ways to raise creative kids

Growing Gummy Bear Experiment

The incredible growing gummy bear experiment | TinkerLab

Do you know about the growing gummy bear experiment? It takes very little room, isn’t messy, and kids love it!

The incredible growing gummy bear experiment | TinkerLab

Here’s how we landed on this experiment…

My kids and I stopped at the drug store for baby wipes, and my 3.5 year old bombarded me with five minutes of excitement that sounded like this, “Mom, stop! You have to see this. Mom, can you get me this light up candy cane/cup shaped like a fairy/snow globe. Wait!!! I really want it!” Ugh. Why do stores have to put all their bling at child height?

I normally adore her enthusiasm, but I have a short wick for the begging and pleading for random odds and ends. Pair that with a one-year old who insists on standing in the shopping cart and you get the picture of me yearning for a hot cup of coffee and a trashy magazine.

In my mom-haze I accidentally walked us down the candy aisle on the way to check out. Dumb move, I know, and my older daughter quickly managed to pull a bag of gumdrops off the display with a request to make gumdrop sculptures. 

Ack. She knows my weak spot for creative projects!

Um, yes, we can buy the gumdrops for the sake of your growing mind. And with that, she also pulled down a pack of gummy bears. I remembered reading about a gummy bear experiment, and that’s how we ended up bringing these little jelly woodland creatures home with us.

The experiment is easy.

Supplies: Gummy Bear Experiment

  • Gummy Bears
  • Water
  • Bowl

Directions

Add a gummy bear to water. Check on it after a couple hours and compare its size to the original gummy bear. See what happens if you leave this in the water for one day, two days, and three days.

Experiment Ideas

  • Set up a number of bowls and place one gummy bear in each one. Add different liquids to each bowl (water, soda, vinegar, etc.) and see how or if the solutions change the results.
  • Document the changing scale of the gummy bears with drawings or photographs.
  • Compare the taste of the plump bears with the original bears.

How we ran this experiment

My older daughter and I each had to eat one, of course, we chose a couple to add to the water. I asked her what she thought might happen to them after being submerged, and she said she didn’t know. After a couple hours we checked on them, and found them covered in tiny bubbles. We compared them to one of the dry originals, and the wet bears were a bit plumper!

I left 3.5 year old N in the kitchen while I put her baby sister down for a nap, and returned to find her nibbling on one of the plump bears!! She had this to say, “I know I wasn’t supposed to eat the bear, but I had to also compare the way they taste to see if they tasted the same.” How could I be upset with that?

In all, we let the bears sit in water for three days, and you can see the size difference in this image. The gummies kept expanding and then finally seemed to fall apart.

If you try this at home, and want to do a taste comparison, be sure to refrigerate your gummy bears so they don’t grow bacteria. Yikes!

The Science behind the Experiment

Gummy bears are made up of water, sugar, and gelatin. Like a sponge, gummy bears will absorb water but the gelatin keeps the bears from dissolving in the water.

More Science Inspiration

If you enjoyed this project, you will probably love 12 Science Fair Project Ideas. You are also invited to join 1000′s of other parents and teachers who get our inspirational newsletter. It’s FREE, comes to your inbox about twice a month, and we’ll send you exclusive opportunities that don’t get shared on our site.

Is this your first time here?

Join the Tinkerlab network and be the first to know about simple art + science projects for kids, creativity tips, and simple ideas that will make your life more creative. Sign up for our newsletter.

TinkerLab Newsletter

In case you blinked and missed it, TinkerLab rounds up all the great stuff on the internets on keeping you and your critters creative and wraps it up for you in a tidy newsletter! (And throws in some secret giveaways for good measure!)  – Yuliya P., San Francisco, CA

Join our community and you’ll learn:

  • How to simplify your life and make more room for creativity
  • How to make hands-on making a part of your everyday life
  • Easy, actionable ways to raise creative kids

Science Experiment: The Floating Egg

sink or float

As I hovered the egg over a jar of water, I asked my 3.5 year old, “Will it sink or float?”and it reminded me of Dave Letterman’s funny sketch, “Will it Float?” Have you seen it? This science experiment is really easy to set up + clean up, and the lesson learned on the density of water actually stuck with my 3-year old daughter long after the experiment was over. Fun and success!

The set up

  • One egg
  • Clear container: I used a wide jar, but a tall glass would work and you won’t need as much salt
  • Water
  • A few cups of salt
  • Spoon to mix the solution

Step #1:

Place the egg in plain water and talk about whether or not it floats. Pretty simple — it most definitely sinks!

Step #2:

Start adding salt to the water. We added ours little by little, and tested the solution by adding the egg back into the water. My 3 year old poured while my 1-year old mixed. I love these moments when they work and play side-by-side.

Finally, it floats!

Baby Rainbow loved this step, as she could finally reach the egg, and had some fun picking it up and dropping it back into the water where it “bounced.”

The Science behind the Experiment

The egg won’t float in regular water because it’s heavier than the water. But adding salt to the water makes the water more dense than the egg, and it floats! We have a book called “Let’s Visit Israel,” and my 3-year old will talk about this phenomena when we reach the page about floating in the Dead Sea.

Taking it one step further

Steve Spangler Science has a great idea for dragging this out into one more step. Fill half of a tall glass (that an egg will fit in) with this salty solution and then slowly pour plain tap water down the sides of the glass, being careful not to mix the two solutions. Gently drop the egg in the solution and watch it sink past the plain water, only to stop on top of the salty water! How cool is that?!

Do you have a favorite science experiment?

This post is shared on It’s Playtime. 

Sensory Play with Tapioca Pearls

boba in milk

Have you ever had Boba Tea or Pearl Tea? You know those chewy, soft balls that sink to the bottom of milky tea that you suck up through a fat milkshake straw? The drink originated in Taiwan as a novelty for children, and has since taken the world by storm with bubble tea houses popping up everywhere. I have yet to be converted to boba, but I when I spotted a bag of multi-colored dried boba in one of our Asian markets, I saw the opportunity for play and exploration.

To read more, I’m writing over on the Kiwi Crate Blog today about our sensory boba adventure.

What do you think about tapioca pearls as a food or art material?

This post is shared on It’s Playtime.

 

Microwave Marshmallow Experiment

microwave marshmallow experiment

Have you heard of the microwave marshmallow experiment? It’s really simple and a fun way to explore how the volume of gas expands a marshmallow as it heats up. My kids also enjoy this experiment because it mixes science (+ fun) with a sugary treat.

The fun and simple microwave marshmallow experiment | Tinkerlab

Microwave Marshmallow Experiment Supplies

  • 4 (or more) Marshmallows
  • Paper Towel or Microwave-safe plate
  • Microwave
  • Paper to jot down observations (I’ll share my 3-year old’s observations in italics below)
For this microwave marshmallow experiment, we’ll microwave three marshmallows for different periods of time, and then  compare what happens to the marshmallows as they heat up, and then cool down again. This is an engaging way to involve children in scientific observation and discovery, it raises lots of questions, and doesn’t require a lot of prep or clean-up. Are you with me?

Step One

Microwave one marshmallow for 10 seconds and remove from the microwave. Compare it to an uncooked marshmallow and describe how it looks. How does it feel?

The fun and simple microwave marshmallow experiment | TinkerlabObservation: It’s small, shorter than the other marshmallow, but fatter. It’s gooey.

The fun and simple microwave marshmallow experiment | Tinkerlab

Step Two

Microwave the second marshmallow for 30 seconds and remove it. How does it compare with an uncooked marshmallow? What happens to it as it cools?

Observation: It’s a little bit larger than the other one. It got dry as it cooled.

The fun and simple microwave marshmallow experiment | Tinkerlab

Touching the second marshmallow.

The fun and simple microwave marshmallow experiment | Tinkerlab

Cool, a little hole showed up in the middle after it cooled down a bit.

The fun and simple microwave marshmallow experiment | Tinkerlab

Step Three

Microwave the third marshmallow for 50 seconds and remove from the microwave. Compare to and uncooked marshmallow right away and after it cools. How are they different? How does this marshmallow feel?

Observation: It’s huge and wrinkly and dry. It’s brown. That means it burned. That means it’s good to eat. Crunchy to eat.

The fun and simple microwave marshmallow experiment | TinkerlabYou can see all three marshmallows here. We noticed that the 30 second and 50 second marshmallows got hard and crunchy as they cooled, and N decided to taste them for a flavor comparison.

The fun and simple microwave marshmallow experiment | TinkerlabThe 50 second marshmallow was brown, crunchy, and caramelized. Have you ever tried astronaut ice cream? It had a similar texture.

The science behind the activity is explained clearly over here at The Exploratorium. In essence, the volume of gas in the marshmallow increases when the temperature increases, and then decreases as it cools down. The Exploratorium suggests not microwaving marshmallows for longer than 2 minutes, less you want a dark, stinky, burnt mess on your hands.

This project was inspired by a book we found at the library: Kitchen Science Experiments: How Does Your Mold Garden Grow?

Have you ever microwaved anything and been surprised by the outcome?

 

Add a Little Learning to Playtime

DSC_0403 2

Today I’m celebrating the one year blogiversary of my friend Jillian over at A Mom with a Lesson Plan. One year! When you stop to think of about it, it’s amazing what can be accomplished in just one year. A preschooler travels into their first year in Kindergarten, a high school senior becomes a college student, and a mom can start a blog that inspires other parents (and have over 1300 Facebook fans to prove her impact…go Jill!). If you’re thinking about starting your own blog, maybe today is the day. It might not start out pretty, but just think about where you’ll be in one year!

A Mom with a Lesson Plan focuses on preschool sized activities for kids at home, so when Jill asked me to write about how we add learning to our playtime, I thought, “Awesome, because that’s what we do all the time!” Every time children play, they learn, and in turn, each activity is full of opportunities for more learning! So, today I’m sharing how we’ve been learning about measurement by watching our paperwhite bulbs sprout and grow…while wearing pajamas and making silly drawings in the kitchen, of course.

N planted the bulbs (found at Trader Joes) with my husband, and about a week later they sprouted. A couple days later they were noticeably taller, so I talked to N about measuring them, with the long-term idea of tracking their growth.

We have a chalkboard painted on a door of our kitchen where I wrote “Bulb 1″ and “Bulb 2.” N is learning how to write and asked if she could draw the “2.” Of course! (++ adding more learning to our playtime). She asked me about the “1” that I drew, and said it didn’t look like a “1,” making this another learning opportunity to share that there are different ways to draw numbers. After sorting that out, she added some fab drawings of bulbs to the chalkboard.

Then we got to measuring. I brought out a ruler, which she has lots of practice using as a drawing tool, but not so much for measuring. We counted out the inches, one through 15 (it’s a long ruler!), and I showed her where to look for the inch markers. She’s been really curious about how analog clocks work, and I suppose this touches on a similar concept of recognizing numbers as symbols that represent something else.

We added the numbers to our chart. As you can see, it’s highly technical, so email me if you need specifics :) N is only 3 1/2, so her grasp of charts is limited, but she enjoyed the process of measuring and documenting, and of course drawing!

Children learn through play. It’s inevitable. What does learning look like in your home or school?

More ideas for adding learning to playtime can be found by these bloggers who are are celebrating with Jillian today. You can click directly to their posts through the linky below.

 

Experiment: Make Fake Snow

making purple

How to Make Fake Snow

We’ve been making fake snow, which is equally fun for kids like mine who celebrate winter under a sea of palm trees or those who are house-bound by piles of real winter snow.

How to make fake snow: a cool experiment with kids  |  Tinkerlab.com

Note: This post contains Amazon links for your convenience.

How to make fake snow: an experiment with kids | Tinkerlab.com

Supplies

How we did it

We started by pouring a small amount of sodium polyacrylate, or fake snow  into a large tub. This material used to make fake snow is non-toxic (although you wouldn’t want to eat it), and you’ll recognize it as the same stuff used to absorb liquid in disposable diapers. I picked up a small bag of “snow” at RAFT, but I’m curious about pulling apart a diaper to mine this fun-to-play-with polymer. If you try this, let me know!

I almost always fall into the camp of “you can always add more,” so we started with just a little bit. When I bought the fake snow, the woman working there joked about a desire to fool her parents by pouring the powder all over their lawn in the middle summer, only to be greeted by a sea of snow once their sprinklers went off. This vision sat firmly in my mind, so I poured gingerly, not knowing just how much the powder would expand.

How to make fake snow: an experiment with kids | Tinkerlab.comIt turns out that it does in fact expand, but nothing to worry yourself about!

one year old drawingMy one-year old was too little for this activity, and I was happy to situate little sister with an activity of her own. She was happy.

How to make fake snow: an experiment with kids | Tinkerlab.comA request came in for a spoon and a bowl to fill. The project is expanding! I asked N to describe the texture for me, and she said it was cool and wet. I agree.

How to make fake snow: an experiment with kids | Tinkerlab.comWorking side-by-side, I now live for moments like this.

Mix colors into your fake snow

How to make fake snow: an experiment with kids | Tinkerlab.comWhen playing with white snow seemed to run its course, I introduced Liquid Watercolors and a plastic pipette. I limited N to two colors (mostly to keep the crazy factor down) and she requested blue and magenta.

toddler sharpens pencilsMeanwhile, little R learned a thing or two about sharpening pencils.

How to make fake snow: an experiment with kids | Tinkerlab.com

This turned into a cool color mixing experiment. It was fascinating to see how many of the “snow” pellets absorbed one color or the other, and cast an illusion of purple when viewed at once.

Make Fake Snow with a Friend

How to make fake snow: an experiment with kids | Tinkerlab.comThe next day our neighbor, J, came over for another snow-making session. J likes a good experiment as much as my daughter does, and the two of them scooped, squeezed, stirred, mixxed and poured until they had to be pulled away for dinner!

What do you think? Will you try to make fake snow?

How to make fake snow: an experiment with kids | Tinkerlab.com

Resources

Learn more about how disposable baby diapers work from Imagination Station

Watch Steve Spangler demonstrate Intant Snow on the Ellen Show. I can’t help but smile at Ellen’s reaction to Steve. She’s hilarious.

Note: Use your best judgement and due diligence when using these materials with young children.

This post is shared with It’s Playtime

Straw Air Rockets

Straw Air Rockets

This is a project we had fun testing with Kiwi Crate, a new hands-on kit of monthly projects that launches  soon. Follow their fun blog for more.

We’ve been having the best time shooting air rockets out of milkshake/boba tea straws (found in our supermarket) The baby enjoyed seeing the rockets fly overhead while chasing them around the room, while my three year old challenged herself to shoot these far and wide.

Materials

  • Milkshake straws
  • Copy, Printer, or other light weight paper
  • Transparent Tape

You’ll want to roll the paper into a tube that will cover most of the straw. Cut a piece of paper large enough to roll around a straw, leaving a 1″-2″ tab that can be taped closed over the other side of paper. Cut another small piece of paper and attach it to the end of the paper tube. Seal it shut. See photos for more direction.

Place the paper tube on top of the straw, move into a wide open space, and blow. What you don’t see here is my one-year old laughing hysterically each time a paper tube shot over her head.This was the third day we played with these over a three week period, and it still caught my kids’ attention. If you decide to try this and it doesn’t work, the worst thing that could happen is that you’ll be stuck with some milkshake straws that may need to be put to work in a more traditional way! Mmmmm.

Have you ever tried to make a paper rocket? What do you think?

More rockets

This project is shared with It’s Playtime, Running with Glitter

“E” is for Experiment

experimental

My bloggy friend Deborah over at Teach Preschool just reached her 20,000th Facebook fan. Can you imagine? TWENTY-THOUSAND! She’s awesome in so many ways, and is especially extraordinary in that she runs a preschool and also finds/makes/squirrels away time to tweet/facebook/blog and generally keep the whole online preschool community together in one special place. Not to mention she’s one of the kindest bloggers out there.To celebrate this big social networking milestone, Deborah invited her early childhood education friends to contribute a letter, in the form of a blog post, to the “ABC’s of Teaching Preschool.” Given the nature of my blog, “E” for Experiment is what I have for you today. Oh, how I love a good creative experiment!

So can you imagine my surprise when I spotted this very truck TONIGHT on our evening stroll? The kids were in the wagon, happily playing with handfulls of leaves, and I did the biggest double-take. Circled back down the street and snapped this shot.

Serendipity, right?

Experimentation is at the heart of learning. When children are curious about something new they may ask about it, test it, try to figure it out, look at it from a different perspective, fail, or try something different. Last night I watched my almost one-year old work at putting a lid on a bottle for close to ten minutes. She flipped it over, moved her hand to get the right grip on the lid, missed the mouth of the botter, made contact, succeeded, put it down to clap (!), and then did it all over again.

About eight times.

Experimentation.

Here are three of our all-time favorite kitchen experiments–a little sample of what makes us happy at Casa TinkerLab. There are MANY more — just type “experiment” into the search bar and see what comes up! If you have a favorite experiment, I’d love to know what it is — by no means have we exhausted the possibilities.

Corncob Popcorn Experiment

Perfect for fall. Collect some dried corncobs and pop them in the microwave.

The Butter Experiment

Grown-ups may have to do most of the work, but the results are pretty spectacular.

Vinegar and Baking Soda

This project is so much fun that you’ll want to buy a gallon of vinegar in preparation for the requests for “more.”

If you’re not already a Teach Preschool Facebook fan, click right here and join the 20,000+ party.

How to Build an Easy DIY Light Table

easy DIY light table

Have you ever wanted a light table, and wondered if there was an easy way to build a DIY light table yourself? Well, this easy DIY light table could be your answer! Once I figured out which materials to use, the whole thing took about 10 minutes to assemble.

*Note: This post contains Amazon affiliate links for your convenience.

Easy DIY LIght Table | TinkerLab.comAfter seeing the beautiful glow that illuminated from the easy light table at Teach Preschool and the pop-out pictures created in salt over at Child Central Station, I’ve been on the hunt for some DIY materials to make my own easy light table.

I had a few rules:  No paint, no saw, and no nails. It also had to be simple to assemble and economical. So when I spotted a large, gently used acrylic box frame — like this — at SCRAP (San Francisco’s reuse center for artists and teachers), I knew I had my answer. If you don’t have any acrylic box frames lying around (who does?!), I’ve found that this can easily be replaced with a basic plastic storage container like this. 

Supplies

  • Acrylic box frame or storage container– Try looking in a thrift store, or maybe you already have one at home
  • Large Plastic Storage Container like this one or this one. 
  • String of Lights — Make sure that they’re bright enough yet not too hot to be placed in the container. Christmas lights do a great job!
  • Clear Packing Tape
  • Wax paper
  • Two 26 oz. containers of salt
  • Toys and gadgets to create textures

Easy DIY LIght Table | TinkerLab.com

How to build your DIY light table

1. Run your string of lights into the bottom container

My husband has a thing for lights so I raided his stash and we came up with these interesting bookcase light strips from IKEA that worked really well. Granted, these lights aren’t cheap, but we already had them so it didn’t really cost me anything. If these didn’t work I would have used Christmas lights. Just be sure that  you use something bright enough for light to pass through the salt, but not too hot for the box. Fluorescent lights are perfect for this. 

Option #2: You could try setting this up with the bottom container’s lid on and off. We’ve set this up both ways with different containers. See what works best with your container.

Option #3: You might also try flipping your bottom container upside down, and then placing the second container on top of it, right side up. Does that make sense?

2. Place the box fame on top of a large under-the-bed plastic container

When not in use as a light table, we use our containers all the time  for messy sensory projects like the Dry Ice Experiment and Vinegar and Baking Soda.

 

Easy DIY LIght Table | TinkerLab.com

2. To diffuse the light, cover the bottom of the box frame or top container with wax paper.

3. Then, to keep the frame from wiggling, tape the wax paper in place with clear packing tape.

4. Pour salt into the top container.

Make it as shallow or as deep as you like. I found that 1/4″ is a good place to start.

My friend Aude gave me about five pounds of salt that I’ve been saving for the perfect project, so I pulled it out and poured a healthy amount into the frame. (In case you were wondering, don’t waste your time with flour — I did, and it doesn’t work.) And that’s it.

If you only have one container, if it has a deep groove on the bottom, you could try using JUST the storage container flipped upside down on top of the lights. Then pour sand into the groove of the box bottom. It’s not as deep as our example, but it might work in a pinch.

Easy DIY LIght Table | TinkerLab.com

Play with your DIY Light Table!

We built this while the kids were asleep, so I got to play with it first. Yipee. Initially there was too much salt in the frame, making it difficult for the light pass through, and I tinkered with the salt until I liked the results.

Easy DIY LIght Table | TinkerLab.comPressing different materials into the salt was oddly cathartic, like raking in a zen garden or working with clay, and I couldn’t wait to see how my daughter would investigate the materials the next day.

Easy DIY LIght Table | TinkerLab.com

Kid-tested DIY Light Table

As an invitation to play, I initially made some loopy marks in the salt with my finger and then turned the glowing salt table on. No tools. She was curious, but not intrigued enough to play.

So I placed a few clay tools with various textures next to the table for her to experiment with, but that didn’t come on like gangbusters either. I hoped that N would get into this cool, open-ended textural play, but her lack of interest made me all the happier that I only spent about $2 on the project. I must have known.

And maybe the light table is most successful in the dark of night, which is long after bed time in the middle of summer? So I poured the salt back into the bag, disassembled the whole thing in about five minutes, and we’ll try again one day soon.

Light Table Success

Sometimes projects with kids take a bit of patience. A child’s mood, interests, or developmental readiness can affect how he or she interacts with an invitation to play. I have since brought this back with variations and it’s been more successful! Here are a couple things that we’ve tried:

What do you think? Are you ready to make a light table too?

This post is shared with It’s Playtime, Teach Preschool