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

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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.

Permanent Markers on Cellophane

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We received these amazing permanent markers (Project Popperz), courtesy of Elmer’s, and I’ve been dreaming up ways to use them. This is actually almost as simple as it gets, and N got a huge kick out of “drawing on the table.”

Materials

  • Permanent Markers
  • Cellophane (I used Cling Wrap)

I covered her art table with cellophane, being sure to overlap the edges by a few inches so the marker wouldn’t poke through the cracks and onto the table. I could have done a neater job laying the Cling Wrap flat on the table to avoid all those bumps that acted like little roadblocks toward the markers. But, it still worked.

Then we opened the markers and started drawing!
We used every color and scribbled away until we decided to switch seats.
N added more marks and then we were ready to hang it.
I simply peeled it off the table and placed it right on the window. No tape necessary! I bet you could also put the cellophane right on the window/s before drawing to give your child the opportunity to draw on the windows. That would be fun! But be sure those window are well-covered first!

I love projects that are easy, use household materials, and change the way we think about art-making. A+ in my book!

Corncob Popcorn Experiment

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Corncob Popcorn Experiment. All you need is a corncob, paper bag, and a microwave. So fun! We visited a local farm a few weeks ago and after actually milling dried corn into animal feed, we were sent home with a cob of dried organic corn to make into popcorn. Did you know that it’s perfect for popping? I didn’t, so for us this was a true, yummy experiment. We put the cob in a paper lunch bag… Folded it up… And got soooo excited when it started popping in the microwave. We cooked it on the popcorn setting, which is about two and half minutes long. As with any other popcorn, open the microwave door when the popping sounds start to diminish. We opened it up for a peek, and it was gorgeous. We marvelled at how much popcorn came off of one little cob. The ends of the ear didn’t pop off and actually singed up a bit. N loved the whole process, right on down to eating the corn. Oh, and what do you think of the face paint? Pretty snazzy, right?! Won’t this be a fun activity in the fall months when dry corncobs are abundant.

Have you popped corn right off the cob?

Rock Candy Experiment

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We’ve been making rock candy, and in the true spirit of experimentation we made three batches (and hope that we finally got it right!). There are so many ways to get this confection started, and I’ll share a few thoughts and links for those of you who might want to give it a try. The thing about rock candy that appealed to me is that the ingredients are simple, and I already had them all on hand (Yipee!).

Rock Candy: Ingredient List

adapted from Rock Candy Recipes via The Exploratorium and Science Bob

  • 2+ cups sugar
  • 1 cup white sugar
  • sauce pot
  • wooden spoon
  • clean, narrow jar/s or glass/es
  • wooden skewers
  • clothes pins
  • candy thermometer or digital thermometer that reaches 240 degrees F
  • wax paper
  • food coloring (optional)
  • vanilla extract or other flavoring (optional)

At least 3 hours ahead of time:

Snip the ends off your skewers so they’re not sharp. Dip the ends of the skewers into a simple syrup mixture (sugar + water, 2 sugar: 1 water, cooked until the sugar dissolves) and then roll the skewers in sugar. Set aside on wax paper until dry. This might not take long at all, but we gave it three hours. If you don’t have skewers, you could use the string method (see photo below). The skewer or string act as a “seed” that attracts the cooling sugar to adhere to it.

(String method: Dip your cotton string in the sugar solution, roll it in sugar, and allow it to completely dry. This could take 24+ hours.)

I don’t normally allow my daughter to cook boiling hot things at the stove (do you?), but she begged me to get involved and she did a great job! What are your thoughts on this? Any tips for kitchen safety that also allow for kids to fully participate?

  • Boil 1 cup water in a small saucepan
  • Slowly add 2 cups of sugar and mix with a wooden spoon until sugar dissolves
  • Cook sugar solution until it’s 240 degrees F (also known as the soft ball stage in candy making). Some rocky candy recipes say to simply boil the solution until the sugar dissolves. I tried this and it didn’t work for me, but let me know if it works for you!
  • Remove from the heat

  • Add food coloring. Be generous.
  • Add flavor (we made one batch with pure vanilla extract and another with real lemon extract). We added about 1 tbsp. lemon, and 1/2 tsp vanilla.

  • Dangle sugar-covered skewer into sugar solution so that it’s about 2/3 of the way down the jar.
  • Attach a clothespin to the top to keep it in place. We put 2-3 skewers in the jars. I wonder if this will be too crowded to work?

And now we wait. Somewhere between 3 and 7 days!! Already feeling impatient, but I’m sure it’ll be worth it! Sugar will form on the surface, and I’ve read that you can scoop it out and enjoy it while waiting for the rock candy to form.

Well, the truth is that we couldn’t really wait :) Before washing the pot, we coated a few spoons with the hot candy. And as soon as they cooled, we were treated to homemade vanilla and lemon lollipops!

So, do you think you might join us?

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Resources

Candy Stages, from The Exploratorium

Rock Candy Crystal Kit, from Steve Spangler. In case you don’t want to mess around with the messiness of this project.

 

Sugar Cube Sculpture

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We made sugar cube sculptures. What a fun and surprising lesson in building, painting, and dissolving!

Materials

  • Box of sugar cubes
  • Glue bottle
  • Sturdy base to glue onto
  • Paint in squeezy bottles

Boxes of sugar cubers were harder to find than I thought, but I ultimately found them at our big supermarket (and bought 2!). We used scrap wood for the base, basic Elmer’s school glue, and Nancy Bottles for the paint.

I suggested that we could build a sculpture with the sugar cubes, and presented N with the materials. That’s all she needed to hear before she began to glue the cubes onto the panel.

And stack them up tall.

You can see that this isn’t the strongest structure in the world!! I filled some Nancy Bottles with watered down BioColor paint, which my daughter then squeezed all over the sculpture. Because the water acted as a dissolving agent, if I were to do this again I’d use straight-up paint without the additional water.

It’s looking a little patriotic, no?

And it end up in this beautiful heap of swirly, melting color. Not exactly what I imagined when we started, but it did lead to some wonderful conversations about dissolving. We only used about 1/10 of the sugar cubes to make the sculpture, so why not set up a dissolving experiment with the rest of the cubes?!

The next day N turned the remaining cubes into sugar water in under five minutes. It was quick, but what a great lesson and experience!

What are you or your kids building with?

This post is linked to It’s Playtime, Childhood 101

Dry Ice Experiment

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Dry ice is a favorite mysterious Halloween material, perfect for spooking up a witch’s cauldron, but did you know that you can experiment with it too?

Dry ice is so cool (couldn’t resist!), and makes for a fantastic (ventilated) kitchen or outdoor experiment. Have you ever worked with it? The big caution is that you don’t want to touch it less it burns your skin. Got that? So it has to be handled with tongs and/or insulated gloves.

Read up on  the cautions of using dry ice before proceeding, and always use your best judgment. I went through all the warnings with N, and the dry ice earned a great deal of her respect. She kept asking questions about how ice could burn us (it wouldn’t make sense to me either if I were her age), and was very curious about how it “smoked” on its way from our porch to the kitchen.

In case you’re wondering, I think it’s smart to introduce kids to “dangerous” things. They’re naturally curious about how the world operates, and given the proper instructions and parameters these introductions can give them a good foundation for critical and creative thinking. Have you heard of the The Dangerous Book for Boys or The Daring Book for Girls? I have a copy of the latter that I know N will love when she gets to be a bit older.

I found the dry ice at our supermarket, and asked the manager to help me pack it up. They come in big bags (perfect for cooling a fridge full of food, but far too much for this experiment), and I understand that they may break smaller pieces for sale…it sells by the pound at our market. To do this experiment, we used two pieces, each the size of a button mushroom.

I filled the bottom of this metal travel mug with about a cup of warm water, and dropped a piece of dry ice in with kitchen tongs. The ice makes a surprising sound when handled by the tongs!

The smoke is perfectly okay to touch.

And blow.

Then we got fancy. N squeezed some dish soap into the mug.

Surprise!

And it got even more exciting with the addition of red food coloring.

And green, blue, and yellow food colorings, too!

This project is great for encouraging curiosity, setting the groundwork for scientific investigation (observation and experimentation), and building creative confidence. A+ in my book!

The Science behind Dry Ice

Dry Ice is frozen carbon dioxide, which dissipates into carbon dioxide gas when it melts. It’s called Dry Ice because it turns directly into a gas from its solid state, without ever becoming a liquid, and therefore there’s no puddle of water in its melted state. This process is called sublimation. Also, Steve Spangler Science is my new best friend, and it’s where I gleaned tons of good information for this post. If you like science experiments, do check this out.

More Ideas from Tinkerlab

Get more Halloween ideas on my Halloween Pinterest Board.

If you enjoyed this post, follow us on Facebook for more child-centered experiments and explorations.

Halloween Countdown Paper Chain

Draw Shape Monsters: Each one is different!

No-carve Decorated Halloween Pumpkins 

Little Fabric Hanging Ghosts

Flubber Gak Slime Exploration

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This SLIME recipe has been on my to-do list ever since reading about Amy’s The Great Slime-Off on Child Central Station. Amy shares two different recipes: the first calls for liquid starch and the second calls for Borax. I looked all over town for liquid starch and it was nowhere to be found. Is it prohibited from the State of California? But the second recipe was totally doable, and felt a bit like fate because N’s nursery school made up a big batch of it last week, which was right after I read the Ooey Gooey Handbook from cover to cover. If you’re into this sort of thing, this book is fabulous! And you can follow Ooey Gooey on Facebook for loads of good information.

This particular slime is also called Flubber, Gluep, Glurch, or Gak, and it’s made from glue, water, and the tiniest bit of Borax (a mild powdered laundry soap).

Borax is soap and it’s toxic, so please use your best judgment and common sense if you choose to use this with young children.

We used half of this recipe from Steve Spangler Science, and the part that gave me the most confidence is where he says “the measurements don’t have to be exact.” Go ahead and breathe a sigh of relief with me! This site also has a wonderful description on the science behind the recipe.

I wasn’t sure how messy this would get and set the whole project up in our big mixing tub. We began by squeezing an almost-full 4 ounce bottle of glue into a glass bowl. Then we mixed in 1 1/2 bottles of warm water to the glue. The recipe calls for 4 ounces of glue and 4 ounces of warm water…do you see how fast I went off-recipe!! But like Steve says, the measurements don’t have to be exact and it worked out just fine!

N added red food coloring and mixed it into a lovely shade of pink.

Then we mixed 1 teaspoon of Borax into 1/2 cup of water, and slowly added the solution to the glue mixture…

Until the slime started to come together. We did not use all of the Borax solution.

At first it was really wet and gooey.

And stringy and sloppy.

And then it started to pull together.

Until it was one easy-to-work-with mass of slime that could be pulled apart and manipulated…to some extent. Because really, this slime has a mind of its own.

N requested a muffin tray with the idea that it would make nice little cakes. Can you believe how viscous and pliable it is?! Completely different from play dough, and absolutely inspiring to little miss curious.

We often roll out our play dough, so she gave that a try and complained that it didn’t work. Good experiment!

Next she tried cookie cutters. Also a bust.

But the scissors…oh, the scissors were so much fun and completely rewarding with this medium.

Come back tomorrow for more Gak play!

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When you’re done using your gak/flubber/slime, you can store it in a sealable container or Ziploc bag for about 2 weeks (when it may start to smell!).

If you’ve made Gak, or if you try this at home, please feel free to add your photos or links in the comment area. I love to see your ideas!

This post is linked to We Play, It’s Playtime!

 

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Cardboard Box Splat Printing

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Did you hear the buzz? TinkerLab turns ONE tomorrow! To celebrate my one-year blogiversary (silly me –can you believe I thought I made this word up?!), I invited about twenty of my favorite bloggers to join me in a cardboard box challenge — right here — tomorrow! And wouldn’t you know that they said “yes!” I’m excited. Please accept this as my formal invitation to pop back over tomorrow to see what children do with this humble, open-ended material of corrugated goodness. Oh, and because we’ve been collecting so much cardboard, today’s post is a teaser of what’s to come.

And now, on to today’s experiment…

Maybe you’ve heard of Splat Painting? This project started out in that spirit and then, thanks to my almost 3-year-old’s creative thinking, turned into Splat Printing.

We gathered four balloons, fashioned a funnel out of cardstock, and filled the balloons with rice. N loved scooping and pouring the rice in. In hindsight, she would have been happy if we just did this all afternoon, but we didn’t stop there…

The balloons were plopped into matching piles of paint.

A couple of cardboard boxes were added to the lawn to be used as canvasses. I preferred boxes to paper because they’re sturdy and wouldn’t blow away in the wind. N smooshed the balloons around in the paint, and then…

SPLAT!

Two colors at the same time. So efficient!

After a few splats, N ran back into the house to get something. A few minutes later she emerged with paper and scissors in order to “make prints.” Seriously!? All our printmaking activities are paying off, and I marveled at how she initiated her first solo printing project.

Revealing the prints is one of the best parts of the process.

A handful of prints, drying in the sun.

More Splat Painting Ideas

Splat Painting with Bean Bags from Let the Children Play

Catapult Snow Painting from Child Central Station

Splat Yo-Yo Painting from Irresistible Ideas for Play Based Learning

Splat Art with Spatulas and Sponges from Putti Prapancha

Splat Painting with damp paper towels from Let’s Tap into our Creative Side

Soap Making Experiments

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We made soap wrapped in hand-painted paper for Mother’s Day! I’ve never made soap before, so this was a fun experiment for us all.

First: Hand-painted paper…

Materials

  • liquid watercolors
  • assorted paintbrushes
  • pipettes
  • a big sheet of watercolor paper to cover her work area
  • small pieces of heavy, absorbent tissue paper that came with some packaging in the mail
  • scissors
  • large sheets of newspaper or newsprint for completed paintings to dry on
  • containers for paint

N squeezed watercolor onto the larger paper so that she could absorb it with the smaller scraps.

A while ago we talked about papers that can absorb paint, and she knew right away that she wanted to test out tissue paper, paper towels, and Kleenex. Sweet! She also requested those tongs up there for picking up the wet papers.

Next: Soap Making…

A few days later, we got our soap-making experiment up and running. I wanted to use an organic soap base, but couldn’t find any on short notice. And you’ll see in a moment why I opted to go with two glycerin soap bases that they sell at Michael’s: Shea Butter suspension soap base and Olive Oil suspension soap base. We broke the base up into pieces and microwaved it for about a 1.5 minutes. Clear directions are on the box. This could also be heated in a double broiler.

Once melted, we added some Lavender essence and oatmeal and mixed it up.

To keep bubbles out of the soap, N prepared the molds (also from the craft store) by spraying them with rubbing alcohol. Adult supervision with rubbing alcohol is obviously recommended!

We stuck rubber stamp-like pieces to a little bit of soap (to keep them from sliding around), and then I poured the soap mixture on top. In subsequent batches I didn’t bother “gluing” the stamps down, which improved the appearance of the soap.

Waiting for it to cool is the hardest part! But to keep our spirits high, this was a good time for lunch. Oatmeal, of course!

Aren’t they pretty?! The two cupcake-looking soaps you can see way back there came out of some silicone food containers.

I thought that I could take a bar of vegetable glycerin soap from Whole Foods and give it the same treatment. What do you think? I should have known better since I’m familiar with the Microwave-Ivory-Soap-Experiement, which is something to try on another day. It puffed the soap up into a stiff cloud…pretty to look at but useless for soap-making.

Then it was time to wrap them up.

Good real-world practice with tape cutting, folding, and wrapping.

We had a play date with our friends from Paint Cut Paste today, and N made these two especially for them (she knows how much they like rainbows!). And the rest are for N’s two grandmothers.

Happy Mother’s Day to all the beautiful, nurturing, intelligent, kind, selfless, and inspiring moms!! Moms are amazing!

This post was happily shared with It’s Playtime, Tot Tuesdays

Outdoor Water Painting Experiments

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My friend Diana sent me these amazing photos of her son (almost 2 1/2 at the time), experimenting with water painting. She offered him a couple containers of water and a paintbrush and gave him free reign to paint away. I love how he was able to take these simple materials and experiment with them in multiple ways. He’s enjoying the process of painting while learning about the properties of his materials, making comparisons, and experiencing the effects of gravity.

He squatted down low to get close to the action. The wood deck and porous tiles help capture the full effect of the water’s path.

He stood up high to flick the brush Jackson Pollack style, and discovered how distance could change the process.

He bent over to paint directly on the wood.

And then he painted on the tiles. A different texture with another look.

And finally, he painted on chalk drawings.

This is a beautiful reminder that creative thinking, exploration, and experimentation don’t have to come at an elaborate cost (of time or resources). If the weather is nice where you are, consider taking some water and brushes outdoors with an invitation to experiment. Other surfaces that absorb water nicely are bricks, terra cotta pots, and sidewalks.

What outdoor painting projects have you enjoyed?

Please feel free to share you photos in the comment section.

This post was shared with It’s Playtime, Childhood 101


Egg Dyeing Experiments

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News break :) If you like TinkerLab, please click on over here and give us your vote.

We won’t win anything, but the attention sure is nice!

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I’m excited to share my first inter-blog collaborative project. Are you ready?

Today I’m posting two Easter Egg projects in conjunction with Melissa of The Chocolate Muffin Tree.

After reading about last week’s Rolled Easter Egg Painting, Melissa suggested that we could have gotten extra mileage out of the project if we’d made it a two for one kind of thing. In case you missed it, N and I made paintings by rolling painted plastic Easter eggs all over pieces of paper. When the paintings were done I washed the eggs off, and Melissa’s idea is that we could have kept the eggs painted as decorative treasures. Of course! I loved this idea, so Melissa and I hatched a plan for today’s post: We would simultaneously experimented with Rolled Easter Egg Painting and we’d also share an idea for Naturally Dyed Easter Eggs. You can read my posts right here on TinkerLab, and Melissa’s are over here on her blog, The Chocolate Muffin Tree.

Dyed Egg Experiment #1: We made Rolled Wooden Eggs with wooden eggs, acrylic paint, and glitter. Click here for details.

Dyed Egg Experiment #2: We made Vegetable-dyed Easter Eggs from beets, cabbage, and onions, and used stickers, parsley, and rubber bands to add texture. Click here for more.

While Melissa and I worked with similar materials, our perspectives and those of our children are different, and we hope you’ll enjoy seeing how these experiments transpired in each of our homes.

If you’d like to join the collaboration and share your version of either egg-coloring process (or something entirely different!), you’re welcome to share a photo or link in the comments.