Fun Science Experiments: Vinegar and Baking Soda

Baking Soda and Science Exploration | Fun Science Experiments | TinkerLab.com

Baking Soda and Science Exploration | Fun Science Experiments  |  TinkerLab.com

My kids love fun science experiments. While cooking breakfast the other day, my three-year old asked about making concoctions with the breakfast supplies. While I’m all for mixing up ingredients with kids, I wasn’t prepared to have a lot of good food go to waste.

So we set up a classic concoction center with some baking soda and vinegar. So much fun!

Supplies: Fun Kitchen Science Experiment

I’ve included some Amazon affiliate links for your convenience

  • Vinegar – I like this big jug for the convenience of having lots of vinegar on hand for more experiments
  • Baking Soda
  • Tray
  • Small pitcher
  • Spoon/s
  • Bowl/s
  • Food coloring (optional)

Baking Soda and Science Exploration | Fun Science Experiments  |  TinkerLab.com

Steps: Set up a Concoction Experiment

  1. Set up a tray or deep tub and fill it with a handful of small bowls.
  2. Fill a bowl with baking soda and a small spoon
  3. Fill a small pitcher with vinegar
  4. Offer this invitation to your little scientist

Baking Soda and Science Exploration | Fun Science Experiments  |  TinkerLab.com

After some fizzy exploration, my daughter wanted to see what would happen if we added some salt, so we brought salt over.  In the past we’ve also added flour, baking powder, and a variety of vinegars. At this point, you could also introduce some food coloring for extra-colorful fun.

More Fun Vinegar and Baking Soda Experiments

When my older daughter was three years old, we did this same science experiment with a slightly different set-up. Hop over here to the fun Baking Soda and Vinegar Science Experiment.

Baking Soda and Science Exploration | Fun Science Experiments  |  TinkerLab.com

This project, like so many others that you’ll find on TinkerLab, is process-based and it’s part of the CREATIVE TABLE PROJECT. 

These projects are set up as Creative Invitations, meaning that the materials are laid out in an inviting way where the child is invited to interpret and use them however he or she likes. With creative invitations like this, I’ll sometimes give my kids a little prompt, but usually I sit back and see what they come up with…and I’m often surprised by their ingenuity.

One of my favorite things about Creative Table projects is that they’re simple. Set up takes minutes and the child determines the outcome through a process of discovery and exploration. There’s no expected outcome, which frees the parent or teacher up to relax and enjoy the process.

Around here, these creative set-ups are part of the Creative Table series, and you can find more of these ideas here.

Creative Table Project | Baking Soda and Vinegar

If you enjoyed this activity, be sure to check out our new book, TinkerLab: A Handbook for Little Inventors (affiliate link). You might also enjoy these creative invitations:

Creative Table Highlights via Instagram

Creative Table: Tape and Paper Bags

Creative Table: Paint and Looping Lines

Creative Table: Doilies and Scissors

Creative Table: Leaves and Glue

Creative Table: Stickers and Frames

 

 

Science Fair Project Ideas

Science Fair Project Ideas | TinkerLab

Are you in the market for some science fair project ideas? Well, hopefully this post will have you covered.

These twelve science experiments encourage children to test, tinker with, experiment, hypothesize, and evaluate various properties and phenomena.

Science Fair Project Supplies

Most of our favorite science experiments involve everyday, household supplies because they’re easy to come by and relatively safe for children to use. You’ll see that these science fair project ideas use materials like gummy bears, dish soap, food coloring, chocolate syrup, sand, lemons, eggs, celery, oil, Alka Seltzer, vinegar, plastic bags, pencils, salt, cotton balls, seeds, and candy.

Links to each of the science fair projects can be found below the block of photos.

Science Fair Project Ideas | TinkerLab

Growing Gummy Bear Experiment, TinkerLab

Elephant Toothpaste, Preschool Powel Packets

Kitchen Science: What Will Freeze First?, No Time for Flash Cards

Make Magic Sand, Paging Fun Mums

science fair project ideas for kids

Sink or Float Lemons, One Perfect Day

Crystal Egg Geodes, TinkerLab

Make a Lava Lamp, Hands on as we Grow

Colorful Celery Experiment and Capillary Action, TinkerLab

science fair project ideas

Melting Ice Experiment, The Chaos and the Clutter

Magical Plastic Bag Experiment, TinkerLab

Grow Beans on Cotton Balls, The Imagination Tree

Dissolving Peeps Experiment, Mom to 2 Posh Lil Divas

Bonus: 10 Tips for a Fab Science Fair Board

10 Tips for a Great Science Fair Board | TinkerLab

Thanks to Handmade Kids Art for the excellent article on how to create a successful science fair board: 10 Tips for a Rockstar Science Fair Board

Which of these have you tried?

If you’ve tried any of these science fair project ideas, would you leave a quick comment? I know that our other readers would love hear about your experiences.

And, if you have a favorite science fair project that’s not listed here, will you share it in a comment? We’d love to make this a valuable resource for our readers like you!

Did you enjoy this post?

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

12 Science Fair Project Ideas | TinkerLab

 

How to set up a Magic Potion Lab (with 3 Simple Tips)

How to set up a magic potion lab

Science Week articles on No Time for Flashcards

When friends and readers talk to me about Tinkerlab, they almost always ask me about science projects. And with that, process-based experiments like the following magic potion lab inevitably come up. Today I’m over on one of my favorite blogs for childhood projects, No Time for Flash Cards, talking about one of my 3-year old’s most requested activities.

Won’t you pop over and pay us a visit? 

How to set up a magic potion lab

For more creative science experiments that encourage children to think for themselves and develop critical thinking skills, click on over here for all of our posts, and sign up for the Tinkerlab newsletter.

 

50 Simple Halloween Ideas for Kids

pumpkin pie playdough, tinkerlab

If you’re scrambling to pull off some Halloween magic, these simple Halloween ideas will help you move gracefully through this spooky season.

Simple Halloween Ideas

Halloween Ideas: Science Experiments

Let’s start off with some gooey, oozy Halloween ideas that are fun to make and play with.

Dry Ice Experiment, Tinkerlab

5 Fun Science Experiements, Science Sparks

Elephant Toothpaste, Preschool Powel Packets

Erupting Pumpkin Experiment, Growing a Jeweled Rose

20 Best Halloween Science Ideas from Kid Bloggers, Steve Spangler Science

Glowing Mad Science Jars, Growing a Jeweled Rose

How to Make Slime, Tinkerlab, and watch our video tutorial…

Halloween Ideas: Sensory Activities for Toddlers

Little kids can enjoy this goulash season too with these fun sensory Halloween ideas that are perfect for little hands.

Pumpkin Pie Play Dough, Tinkerlab

Pumpkin Scented Cloud Dough, Growing a Jeweled Rose

Halloween Sensory Bin, Here Come the Girls

Pumpkin Oobleck, Train Up A Child

13 Halloween Sensory Ideas, Creative Playhouse

Pumpkin Guts (one of my favorite simple Halloween ideas, since you know you have to cut the pumpkin up anyway), Creative Connections for Kids

Touch and Feel Scarecrows, Teach Preschool

Halloween Ideas: Arts and Crafts

Bring out the paint and paper for these festive arts and crafts Halloween ideas…

Simple Halloween Ideas

Organic Shape Monsters (this simple Halloween idea is a year-round hit in my house), Tinkerlab

Spiderweb Printmaking, Tinkerlab

Printing with Pumpkins, Putti’s World

Coffee Filter Spiderwebs, The Artful Parent

Handprint Pumpkins, Putti’s World

Halloween Tree, Tinkerlab

Tie Dye Pumpkins, Mamas Like Me

Marble and Paint Spider Webs, Tinkerlab

Spin Art Pumpkins, Rainy Day Mum

Pumpkin Scented Painting, Growing a Jeweled Rose

Halloween Countdown Paper Chain, Tinkerlab

Rolling Pumpkin Painting, Putti’s World

Simple Halloween Ideas: Games and Activities

What’s Halloween without fun and somewhat creepy games?

Simple Halloween Ideas

Halloween Felt Board Game, Kitchen Counter Chronicles

Halloween Crafts and Ideas for Toddlers, Rainy Day Mum

31 Ideas for an Active October, Toddler Approved

Dress in Costume and Write a Story, Here Come the Girls

Witch Pitch (toss candy corn into cauldron game), Chica and Jo

Halloween Word Search, No Time for Flash Cards

Simple Halloween Ideas: Food

These tasty snacks will get you in the autumn mood.

Baked Pumpkin Seeds, Tinkerlab

 21 Recipes Inspired by Scary Movies, Babble

4 (not so scary) Food and Snack Ideas, Kids Activities Blog

Pumpkin Jack-o-lantern Pancakes, The Artful Parent

Easy Frankenstein Cookie Pops, Life at the Zoo

Simple Halloween Ideas: Jack-O-Lanterns

These easy jack-o-lanterns are great for toddlers and preschoolers, as well as time-constrained adults.

No-carve Halloween Pumpkins, Tinkerlab

Decorate Monster Pumpkins, Hands on as we Grow

Last-minute Pumpkin Carving and Decorating, The Artful Parent

Toddler-friendly Jack-O-Lanterns, Modern Parent Messy Kids

Puffy Paint Jack-o-lanterns, Train Up a Child

Button and Ribbon Pumpkins, Toddler Approved

Chalkboard Pumpkins, Small & Friendly

Simple Halloween Ideas: Decorations

Bring on the simple Halloween decor ideas with these outdoor decorations that take minutes to make.

Felt Bat Garland, The Artful Parent

Little Fabric Ghosts, Tinkerlab

10 Simple Halloween Decorations, Babble

How to Make a Halloween Bunting (Quick and Cheap), The Artful Parent

Make the Spookiest Scarecrow Ever + 10 more Outdoor Decorating Ideas, Babble

Simple Halloween Ideas: Costumes

If you’re short on time, these Halloween costumes can come together in minutes.

39 Last minute Costume Ideas for Kids, Family Fun

Last minute Halloween Costumes, Babble

Last-minute Pirate Costume, Red Ted Art (I also love the last-minute skeleton costume)

50 No-sew Costumes for Halloween, No Twiddle Twaddle

 

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

5 Easy Steps to Invent a Recipe with Kids

invent a recipe with kids

Do you like to cooking with kids or do you yearn to cook with your child? Today we’re sharing five easy steps to invent a recipe with kids, which will get you into a creative cooking mindset. Think Master Chef + little kids = a fun afternoon.

But you might wonder, “why would I want to invent a recipe when I can easily follow a recipe?” The answer is that inventing recipes instills children with confidence to invent their own solutions to a problem, encourages independent thinking and problem solving skills, and teaches children how to find their way around a kitchen.

5 easy steps to invent a recipe with kids | TinkerLab

My house smells like pancakes.

Which really means that it smells like cooking oil and caramelized sugar. Sort of a happy, greasy smell that has lingered for days.

Every afternoon, for the past three days, my 3 year old turns into a kitchen alchemist as she gathers ingredients and invents her own recipes.

She is in heaven. And it gets even better once we cook the cakes up and proudly serve them up to hungry family members.

Do you ever give your kids free reign over your kitchen?

Experiments like this set children up with a real-life science experiment that fosters creativity, inventiveness, and problem-solving skills. It’s not for the faint of heart and you have to be okay with a bit of a mess, but I think the trouble is well worth it for the amount of creative confidence it builds in children.

So, after three straight days of wild pancake combinations, I present five lessons learned on how to invent recipes with kids…

Cooking with Kids: Invent a Recipe

How to Invent a Recipe with Kids | TinkerLab

Lesson #1…Get Familiar with the Kitchen.

If your child doesn’t know where things are, give him a little tour. And start with a simple cooking project that introduces him to some key ingredients and tools for a favorite recipe (such as a mixing bowl, mixing spoon, measuring spoon/cup, flour, and oil).

We spend a lot of time cooking together and my oldest (N) knows her way around the kitchen. She can find the biggest mixing bowl in the house, all the baking ingredients are at kid-level (this will no doubt pose a problem once her little sister figures this out), and we have amazing little foldable step stools like these that give her access to the fridge (unless she wants the butter…but we do have a taller stool for that).

How to Invent a Recipe with Kids | TinkerLab

Lesson #2…Come up with a General Plan.

In our case, N has been making pancakes, pancakes, and more pancakes. We tend to make a lot of pancakes in our house anyway (they’re not just for the weekends), so she’s super-familiar with the key ingredients and general direction of what might taste good together. For example, she didn’t pour ketchup into the batter (although if she did, I probably would have let it happen).

Do you have a favorite family recipe that you could riff off of? 

To start, she collected a few ingredients (white flour, wheat flour, flax seeds, and blueberries), and added them to the bowl. I tried to step back and allow her to make decisions about quantities, but every now and then I’d throw out a suggestion to help guide the journey.

As you can imagine, her pancake recipe has WAY more than the usual tablespoon of sugar (see the next picture), but it turns out that sugary pancakes are absolutely delicious.

invent a recipe with kids

Lesson #3…Green Light all Ingredients.

Of course you want to be safe about this, as things like raw meat and raw eggs need special handling, but try to keep an open mind as your child selects her ingredients. One of N’s batters had chocolate chips, white chocolate chips, mango juice, dried cranberries and walnuts in it. It was amazing.

The most recent batch contained raspberries, strawberry cream cheese, diced apples, and goat cheese. It was a bit chunky, and I’m not so sure about the goat cheese, but we drafted a recipe in case they end up being the best one yet.

Which bring me to the next lesson…

How to Invent a Recipe with Kids | TinkerLab

Lesson #4…Write the Recipe Down.

This is validating and makes the whole game so much more fun. As N added ingredients, I tried my best to write them down. Some things were carefully measured and others weren’t, but it didn’t really matter. I’m thrilled to have documentation of her first recipes and I’m sure she’ll treasure them as she gets older.

How to Invent a Recipe with Kids | TinkerLab

Lesson #5…Embrace a Good Experiment.

As we cooked, I repeated multiple times that this is a grand experiment and that we’d be surprised one way or the other. We chatted about how it’s possible that not one person has ever made this exact recipe, and that chefs go through a similar process when they invent something new. Like scientists, they hypothesize (what ingredients might taste good together?), they experiment (let’s make this batter with yogurt and the next with sour cream), and they test (how does it taste? which batch do we like better? why?).

How to Invent a Recipe with Kids | TinkerLab

After one of our cooking sessions, my husband took the kids off on a run in the stroller. These two hot cakes were eaten before they left the driveway, which I suppose speaks to how delicious they came out.

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

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.

Did you enjoy this post?

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 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.

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

Squishy and Moldable Cloud Dough

DSC_0614

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 here.

play dough play

Cloud Dough! 

Have you heard of it?

play dough play

Me either, and I thought I’ve heard of most everything arts+little kids related. Karen at Flight of Whimsy introduced me to the recipe, and as soon as I learned about it I knew my  3 year old would love it. The consistency of the dough is lovely to feel and hold. It can be powdery like flour one moment, and then moldable like damp sand the next. This brought HOURS of fun to my home, and maybe it’ll do the same for yours…

play dough playWe started off with 4 cups of Flour and 1/2 cup of Oil. The original recipe is an 8:1 ratio. I would have enjoyed having the full 8 cups worth, but I didn’t want to deplete my flour reserves, just in case.

Don’t worry about writing all this down. There’s a printable recipe at the end of this post!

play dough playN took the mountain-making and oil mixing job very seriously. We mixed it with our hands for about 5 minutes until the dough held together when we squeezed it. We could still see some oil lumps in the dough, but it didn’t have an adverse effect on the material. The original recipe called for baby oil, but canola worked beautifully for us. However, Karen did mention the lovely smell of the baby oil, so we added a healthy dose of lavender oil drops (found at our health food store) to scent the dough. Heavenly!

play dough playI find it fascinating to sit back and observe how my kids explore new-to-them materials. The first thing N made was a wall. A really strong wall.

play dough playThen she crafted the dough into a bakery and soup cafe. These silicone molds are wondrous for activities like this.

play dough playShe enjoyed picking up and squeezing small handfuls of dough. The texture was phenomenal.

Play Dough Play

play dough playThe next day we brought it back out and shared the dough with some friends. And this is where I wished I had made the full 8-cup recipe. Hoarders!! There was so much scrambling for all the dough scraps, and I found myself patrolling more than I like to. So, if you’re making a batch for more than one child, 8 cups of flour + 1 cup of oil may be the way to go.

5.0 from 4 reviews
Cloud Dough
 
Author:
Recipe type: Dough + Sensory
 
The consistency of this dough is lovely to feel and hold. It can be powdery like flour one moment, and then moldable like damp sand the next. This brought HOURS of fun to my home, and maybe it'll do the same for yours...
Supplies
  • 8 cups flour
  • 1 cup vegetable oil
  • Essential oil such as lavender or grapefruit (optional)
Steps
  1. Scoop and pour the flour into the center of a large tub.
  2. Create a crater in the middle of the flour.
  3. Pour the oil into the crater.
  4. Gently mix it all together.
  5. Enjoy mixing and learning about the properties of the dough as it is, or add small silicone bowls, spoons, or measuring cups to make small structures, hills, or pretend cupcakes.
Notes
The original recipe is an 8:1 ratio and we started off with half the recipe (4 cups of Flour and ½ cup of oil) because I didn't want to deplete my flour reserves, just in case. Turns out that this was such a hit and a full batch would have been equally wonderful, especially after our neighborhood friends wanted to come over and play with us.

 

If you’re looking for more sensory-dough ideas, here’s a few more to keep you busy:

Rainbow Play Dough

Flubber Gak Slime Exploration

Vinegar and Baking Soda

Flour and Water

Flour and Chalk

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 Projects for Kids | Rock Candy

DSC_0384

This fun science project for kids is easy to set up with sugar, skewers, and a few kitchen tools.

How to make Rock Candy

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.)

Steps: Rock Candy with Kids

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!

More Science Projects for Kids

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

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

+++++

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.

 

Pitched Roofs

Zemanta Related Posts Thumbnail

Our neighbor’s house had a leaky roof and the handy man came for a visit. This peaked my daughter’s interest and she wanted to know why. If you’ve had a small child living in your home, I’m sure you’re familiar with this barrage of non-stop questions that keep coming even if you’ve already answered them…at least three times: Why is the plumber here? Why is their roof leaking? Why does he have a friend with him? Why do they have a ladder? Why aren’t they fixing our roof? Is our roof leaking? Why is their roof leaking?

It turns out that they have a flat roof, and we have a pitched roof. Not that it really matters, of course, as any roof can leak, but flat roofs seem to be more prone to collecting water than pitched roofs, and there I was explaining this to my 33 month old. My explanation began with the illustration you see above, which I sketched onto our chalkboard. I drew the houses and rainclouds, and then demonstrated how the rain falls differently on the two roofs. I checked in to see if this made sense to her (it didn’t), so I moved on to building a 3-D model.

We found some cardboard in our recycling bin and got to work crafting two structures: one with a pitched roof (our house) and one with a flat roof (our neighbor’s house).

And then we ran a little experiment by placing them in the sink and running “rain water” over them. The water rolled right down the sides of the pitched roof and puddled up on the flat roof. And then, finally, she got it!

A surprise preschool lesson on roofs, science, plumbers, and architecture!

What surprise lessons have you taught lately?