Science Activities for Kids

Fun Popcorn Science Experiments for Kids

February 22, 2021 By Terri Thompson

Do you love popcorn! I definitely do and so do my kids.

But, there’s more to popcorn than just a yummy snack. There’s a lot of science involved too.

So, let’s explore a little, do some popcorn science experiments, and learn while we snack.

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How does popcorn pop?

Perhaps one of the simplest experiments you can do is to pop a batch of popcorn to find out how it pops.

Ask a simple question: What elements do you need to pop popcorn? (Hint: Heat) But, why does heat make it pop?

It all has to do with pressure, and the particular make-up of the popcorn kernel. There’s a tiny bit of water inside a popcorn kernel. The heat produces steam, pressure forms, and POP! You’ve got popcorn.

While you’re popping, check out this article at Wonderopolis that answers all your questions. It goes into much greater detail of all the science at work in popcorn.

So yes, your favorite salty snack is basically science at work.

Fun Popcorn Science Experiments

(Pictured left to right in above photo)

Now that we’ve talked about how popcorn works, let’s do some fun popcorn science experiments!

Use popcorn to do a fun classic experiment, Hopping Corn, with One Time Through.

What’s the difference between corn and popcorn? Explore and do some fun hands-on activities to answer this question at A Little Pinch of Perfect.

Explore volume and physical change with this fun popcorn experiment from EDventures for Kids.

Pop popcorn in a different way by popping it on the cob. Tinkerlab shows you how.

More Popcorn Science Projects

Try a popcorn and milk science experiment inspired by the book Farmer Boy. Check out Simple Living Creative Learning for all the details.

Use popcorn to compare weight with this fun science activity from Inspiration Laboratories.

Can changing how popcorn kernels are treated prior to popping change how well (or how many) they pop? Answer this questions with a fun Popcorn STEM activity from Lemon Lime Adventures.

What happens with you pop dyed popcorn? Our Whimsical Days shows you how to do this fun experiment. (Not pictured.)

Turn snack time into learning time when you do some fun popcorn science experiments.

My Must-Have Resources for Science Fun

I don’t know about you, but I don’t always have time to prep a fun science project. That’s why I love Green Kid Crafts Discovery boxes. The boxes are packed full of projects that are fun and inviting. You can choose to get a subscription or a one-off box based off of a specific theme. Any one you choose would be a lot of fun!

Here are some of our favorites (you can purchase and find out more at each link):

Get a monthly subscription.

Kitchen Science Box

Physics Box

Find all their fun STEM and science boxes here.

Melting Snow Science Experiment

February 17, 2021 By Terri Thompson

We’ve had plenty of snow this year, but the sub-zero temps have been keeping us inside most days.

Luckily, with the exception of a quick trip outside to gather snow, this simple melting snow science experiment is done indoors.

We used the snow to practice both prediction and observation.

Practice making predictions and observations with this simple melting snow science experiment. It's perfect to do on a cold, snowy day!

Supplies needed for your snow science experiment:

Snow (if you don’t have snow, you can use crushed ice)
4 clear jars or drinking glasses
Ruler
Notebook

Let’s start our snow science project!

Step 1:

Measure an equal amount of snow into 4 jars. We added about 2 inches of snow to each. Use the ruler to measure.

Place each jar in 4 different locations. We chose a window (on a grey, cloudy day), a dark room, the refrigerator, and outside (temp was -4 F).

Set a timer for 5 minutes.

Step 2:

Record your predictions.

We asked the question, which jar of snow will melt first?

We then ranked them from the fastest melting to the slowest.

Each girl had a chance to make individual guesses.

Step 3:

Make your first observations.

When the timer went off, the girls ran around and checked all of the jars. I was their recorder and the person elected to check the frigid outside jar.

After five minutes, we discovered that the jar in the window and the one in the dark room had already started melting. The refrigerator jar had no melting, nor did the one outside (obviously).

After making your first observations, set the timer for an additional 5 or 10 minutes. We chose five.

Step 4:

Make your second observation.

After an additional five minutes had passed, we discovered that our window jar was melting the fastest, and the dark room was second. The refrigerator jar and outside jar still showed no melting.

Step 5:

Make your final observations.

After our second observation we left to run a few errands. When we came back, we discovered that despite our initial observations, the jar in the dark room melted faster than the one in the window.

The refrigerator jar had started melting and the one outside was still as frozen as it started out.

What did we learn with our snow science experiment?

This led to a quick examination. Why did the jar in the window stop melting so quickly? The girls discovered a very cold window and a cloudy day.

My 1st grader also observed that the heater had come on and suspected that it helped speed up the melting in the dark room. I love it when their scientific minds start working!

This snow science experiment is perfect for both preschoolers and elementary students. It’s a simple way to introduce making predictions. Your older kids can practice their writing by recording all the observations in the notebook. Plus, it’s simple and safe so that your older kids can do the entire experiment on their own.

Note: This post was originally published on January 6, 2014. Updated and republished on December 29, 2018.

My Must-Have Resources for Science Fun

Here are some of our favorites (you can purchase and find out more at each link):

Get a monthly subscription.

Kitchen Science Box

Physics Box

Find all their fun STEM and science boxes here.

STEAM Family Activities

Wouldn’t it be so much fun to get STEAM family activities delivered to your inbox? I think so! That’s why I’ve created this fun series, STEAM Family Fun, to be delivered to your inbox. After going through all the letters in STEAM each week with a fun activity devoted to each, you’ll start receiving a fun STEAM activity once a month. (And I’ll also pop up in your inbox occasionally if I’ve got other fun things to share.)

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5 Fun Ways to Learn With a Daily Weather Report

December 20, 2020 By Terri Thompson

I don’t know about you, but I check the weather app on my phone every single day. Sometimes, I’ll check multiple times.

But, do you ever share this habit with your kids? You should. It’s a great way to learn.

There’s more you can do than just simply checking in the weather. Check out these fun ways to learn with a daily weather report.

This simple STEM activity is fun and requires absolutely no prep time!

Get out your phone for this simple weather report activity. You can learn so much with a daily weather report. Here are a few ideas to try.

Five Ways to Learn with a Daily Weather Report

Compare temperatures

Use your math skills to discover the difference in temperatures. Find the difference between a day’s high temperature and its low temperature.

For example: Today’s high is 88 degrees and the low is 59 degrees. I use subtraction to find the difference. There will be a 29 degree difference today!

You could compare temperatures over the week. Record the temperature at the same time everyday. For example: What was the temperature at 3:00 pm every day? Find the temperature difference over the week. Find the difference between the week’s highest temperature and the lowest temperature. Or, simply find the difference between Monday’s 3:00 pm temperature and Tuesday’s 3:00 pm difference.

Learn to read a radar

Nowadays, we carry a weather report around in our pocket and can access it anytime. Because of that, I consider it a life skill to be able to click on the radar and know what it is telling you.

Do you know what all the colors mean? Do you know how to make the radar move and understand what it tells you?

Share this information with your kids and teach them how to understand what you’re seeing on the radar.

Note: You will want to pick a rainy or snowy day for this. There’s not much to see on the radar on a clear day!

Learn about predictions

Weather forecasting is all about making predictions. But, these predictions are pulled out of thin air, they’re based on a lot of information like weather patterns, radars, climate, and more.

You can learn more with one of these informative books:

Weather Forecasting by Gail Gibbons

Weather Words and What They Mean by Gail Gibbons

What Will the Weather Be? by Lynda DeWitt

Or, you can try this activity to learn more about weather prediction. Record the weather first thing in the morning. At the end of the day, go back to this prediction. Was the weather forecast correct? What changed?

Next look at the extended forecast and find the prediction for three days from now and five days from now. Was the forecast correct? What changed? Can you come up with some reasons why?

Use the weather report to plan the week

How does the weather report help you plan for the day or for the week? It can tell you whether you need to wear a winter coat or a light jacket. Or whether or not you need to grab an umbrella.

Are you planning a trip to the pool? Sit down with your kids and the extended forecast and have them help you pick the best day to go.

Look at the weather report before picking out your clothes for the next day. How did the weather report help you plan?

Other weather report activities

What else can you learn with a daily weather report?

You can find all sorts of information: rain totals, wind speed, air pressure, pollen count, etc.

You can look up cities around the world and see how it is different from what where you live.

Can you come up with some more ways to learn with a daily weather report?

Get ready to learn with these fun daily weather for kids activities. Learn to read a radar, use the weather forecast, and more.

Learn More With a Book About the Weather

Combine this weather activity with a fun book to learn even more. Here are some great weather books that I’d recommend:

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Mount Vesuvius Activity STEM Challenge

September 18, 2019 By Terri Thompson

I’m not sure if there’s a kid these days that hasn’t made a volcano. It’s such a classic science experiment. It’s fun to put together and it’s fun to watch the eruption.

Both of my girls have done this experiment before. In fact, they’re old hands at it. So, it was time to kick it up a notch and combine some history, some science, and a good book into one fun STEM project. We’re going to learn about Pompeii with this Mount Vesuvius activity.

Pompeii History for Kids

Have you read any of the books in the You Wouldn’t Want To series?

We discovered them about a year ago and have been enjoying them whenever we find them at the library. This series is such a fun way to learn about history. You learn about the gritty and real parts of history in a kid-appropriate way.

You Wouldn't Want to Live in Pompeii Volcano STEM challenge

Recently, we brought home You Wouldn’t Want to Live in Pompeii! A Volcanic Eruption You’d Rather Avoid by John Malam. Pompeii is such a fascinating story. It seems like the plot of a good fiction book, only it’s very, very real.

In this book we became a resident of Pompeii. We learned about what life was like in the town in AD 79. We lived through the days leading up to the eruption, we experienced just how frightening it was during the eruption, and we learned what life was like for those who survived. This book covered a lot of good stuff.

Building out Mount Vesuvius model with clay.

Mount Vesuvius Activity

Once we were done reading, we were ready to recreate the eruption of Mount Vesuvius. We used a small cup and some modeling clay to create our volcano.

We were very aware that our model was not an accurate model of the volcano. But, nonetheless, we talked about the different parts of a volcano we learned about in our book. The cup represented our magma chamber (the space under the mountain that is filled with molten rock). We build a mountain around it using the modeling clay. (You can also use play dough for this step.)

Learn about pompeii history for kids with this fun STEM challenge.

Once Mt. Vesuvius was complete, we put it in the corner of our plastic tray and got to work building Pompeii.

Note: You’ll want to do this experiment on an enclosed surface. It will get messy! We used a plastic tray. If you don’t have a plastic tray, a baking sheet will also work well.

We used our Legos and built a tiny town to represent Pompeii. We had houses, a library, a school, a vineyard, and a river made out of clay.

Combine history with science in this fun Mount Vesuvius activity. Your kids will learn all about Pompeii and volcanos with this STEM challenge.

Erupting Mount Vesuvius

Finally, it was eruption time! My girls filled the cup half full of baking soda. We wanted a big eruption. Then, they added the white vinegar. Boom! Mount Vesuvius erupted and the lava flowed toward Pompeii.

We knew our STEM challenge wasn’t quite complete. We missed the tremors that happened for days before and also the ash that fell from the sky before the lava started flowing. So much ash and pumice fell that roofs began to collapse and started burying the town. By the time it was over, the ash, lava, and volcanic debris completely buried the town.

But, wait a minute! What about the science?

Baking soda is a base and vinegar is an acid. When the two meet, a chemical reaction occurs which creates carbon dioxide – the bubbling, fizzing reaction. The carbon dioxide creates a pressure which pushes your mixture out of the cup similar to the pressure that pushes the molten rock out of the volcano.

Combine history with science in this fun STEM learning activity for kids. Learn about Pompeii and Mount Vesuvius and create your own volcanic eruptions.

I’ve always loved bringing history alive. It’s such a great way to explore and learn about the world, both past and present. And, it was so much fun to tell the story of Pompeii through our volcano STEM challenge. It’s a lesson we’ll never forget!

You’ll also love these STEM activities:

Paper Plate Layers of the Earth Project

LEGO STEM Challenges for Kids

Phases of the Moon Mobile

20 Cool STEM Activities to Learn About Ancient Times at Techie Homeschool Mom

Mount Vesuvius Books for Kids

For our Mount Vesuvius activity, we used the book You Wouldn’t Want to Live in Pompeii!, but that’s not the only book you can use. Here are some other great books about Pompeii for kids.

Family STEM Challenges

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Melting Crayon Science Experiment

May 22, 2019 By Terri Thompson

Will crayons melt in the sun? If so, how long will it take?

We set out to find the answer to that question one day with a melting crayon science experiment.

It took a bit of patience and some problem solving. But, in the end, our science brains found an answer.

Will crayons melt in the sun? Find the answer to this question with a fun melting crayon science experiment. It's a perfect summer science project.

Gather your supplies for your crayon melting experiment

Broken bits of crayons
Muffin tin or mold (silicon ones work best)
My Science Experiment page
A sunny day

If you don’t want to use a muffin tin, you can also use an ice cube tray or even several small disposable bathroom cups.

First, ask a few questions

We began our melting crayon science experiment by gathering supplies and asking a few questions.

The experiment itself was fun, but I wanted to challenge my girls to think like scientists during our experiment.

I created our My Science Experiment page to help us record our observations.

If you want to do this experiment too, please download and print your own science experiment page at this link.

We asked our question, do crayons melt in the sun?

We then made our predictions. The girls thought they would melt.

We also talked a bit about the things that would help the crayons melt. We determined that we needed to put our crayons out in the bright sunlight.

Set up your melting crayon science activity

We found all of our broken bits of crayons and put them in a silicon muffin tin. I found the silicon works the best, because it is easy to pop the crayons out of later.

Once we had our muffin cups filled, we took it all outside and found one of the sunniest spots in our yard.

We left the crayons bits outside for about two hours before we checked on them for the first time.

The main reason we waited that long was because while it was sunny, the temperature was only around 80 degrees F.

The crayons would melt, but slowly.

If you’re doing this on a hotter day, check it sooner! I’d recommend checking after the first 30 minutes and then every 30 minutes after.

We had some melting after 2 hours, then started checking every hour.

We recorded each of our observations on our science experiment recording sheet.

After several hours, we had partially melted crayons and we wanted to try to speed up the process.

We did some brainstorming and decided to put our crayons in our car which was sitting in the sun.

The hot car did the trick and our crayons finished melting. Make sure you have an adult and oven mitts to remove your muffin tin from the car. It’s as hot as an oven!

Our conclusion

We took our melted crayons inside and let them cool.

In the meantime, we wrote our conclusion. Yes, crayons did melt in the sun. The higher the temperature, the quicker they will melt.

After the crayons cooled and hardened, we popped them out of the muffin tray and tried them out. Our melting crayons science activity was a success!

Yield: 1 experiment

Melting Crayon Science Experiment

Can you melt crayons in the sun? Find out with this fun melting crayon science experiment that explores heat, the sun, and changing states of matter.

Prep Time 5 minutes

Active Time 20 minutes

Additional Time 6 hours

Total Time 6 hours 25 minutes

Difficulty Easy

Estimated Cost Under $5 (depending on the supplies you already have on hand)

Materials

Tools

My Science Experiment recording sheet

Instructions

Print out your recording sheet and make your prediction. Will crayons melt in the sun? How long do you think it will take?
Peel all the paper off your broken crayons. Break them into smaller pieces if needed to fit in your mini muffin pan.
Add 5 to 6 pieces of crayon into each cup. Mix the colors up or keep similar colors together.
Bring the crayons outside on a hot, sunny day. Make sure to set them someplace where they will get a lot of sunshine.
Check back after 30 minutes. Have they started to melt? Record your observations.
Keep checking every half hour. Record your observations each time.
Once your crayons have fully melted, record your time. How long did it take?
Bring your crayons to a cooler place to cool and harden again. Once you pop them out of the muffin cups, you'll have some fun new muffin tin crayons!

Notes

If you don't have a mini muffin tray, you could also use an ice cube tray or even small bathroom cups to hold your crayons.

Recommended Products

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My favorite resource for science at home

Have you ever tried Green Kid Craft kids? We’ve got a yearly subscription and absolutely love it. Each month we get a box with everything we need for 3-4 themed STEM projects (plus a booklet with even more projects you can). Our last shipment was full of chemistry projects!

Green Kid Crafts is a great way to have science projects ready to go. You can get a subscription like we have or buy single boxes.

Get a subscription here.

Find other themed boxes here.