Do your children take part in a science fair or have science projects to do at school or home? Do you need a bit of inspiration to create an amazing science project? I’ve pulled together some brilliant kids science project ideas to get you started!
Kids of any age from preschoolers up to high school kids can enjoy investigating, experimenting and creating cool science projects just for fun or to understand more about chemistry, biology, physics, plants, ecology and more.
If you’re really stuck for an idea, try thinking about a science question to answer and go from there!
Expand on our ideas to make a winning science project everyone will LOVE!
Astronomy Projects for Kids
We love these gorgeous constellation geoboards from Babble Dabble Do.
Learn about why craters form and why they are different sizes with this easy project using different size marbles dropped into flour and hot chocolate powder.
Find out why we have night and day with this fun activity on Let’s Lasso the Moon.
Try one of these amazing space experiments perfect for a full afternoon of space themed fun complete with FREE printables so you can just gather the resources and go!
Kitchen Science Projects for Kids
Learn how filters work by cleaning up dirty water. You can use kitchen roll, coffee filters or even sand and stones for this one.
Learn about earthquakes and foundations with this amazing edible earthquake project.
Find out why food decays or goes bad with this rotting apple test.
Discover why popping candy pops!
Make a red cabbage indicator and test substances to see if they’re acids or alkalis. You can even make your own red cabbage filter paper!
Find out which substance freezes first in this fun activity from No time for Flash Cards.
Make egg geodes like Tinkerlab. We haven’t tried these yet, but they are on my list to do before Easter this year.
How about the good old Coke and Mento experiment? Remember to drop the mento in the coke as fast as you can to get the biggest explosion. We recently tried with lemonade and fruit mentos and it didn’t work well at all, so I’d stick with the mint version and good old coke!
Materials Science Projects
Find out why eggshells are are strong and learn about domes in this fun activity making and testing bridges.
Test the viscosity of different substances in our giant viscosity race. In my new book Snackable Science we test the viscosity of different ketchups to add a bit of context.
Test different materials to find which muffle sound most effectively.
Kids Science Projects – Plants
Investigate why plants need water, how they make energy to grow or learn about germination with a bean in a jar.
Make some pretty coloured flowers or celery and investigate the process of transpiration.
Create a model of a plant cell using jello!
Kids Science Projects – Nature
Make a wormery and find our why worms are so useful.
Investigate the best way to stop slugs eating plants.
Kids Science Projects – Human Biology
Investigate heart rate and how it changes when you exercise or build a pumping heart model.
Make a model brain and learn about the different structures inside the brain.
Kids Engineering Projects
Can you make a balloon powered LEGO car? This is a bit tricky, but toally worth the effort!
Create your very own drinks dispenser using the power of air pressure!
Learn about elasticity with a catapult. Little Bins for Little Hands has some great catapults too.
Make a homemade instrument and learn about sound absorption and reflection.
More Amazing Science Projects Kids
Nurture Store has a lovely post about growing crystals
These explosive chemistry experiments are sure to impress everyone!
This Art Bot is a great electronics project for kids or we really enjoyed making our light up street too!
Last Updated on July 9, 2025 by Emma Vanstone
These are fantastic! I love the worm home especially. Pinning 🙂 Thanks for sharing.
My kids are obsessed with worms! We must make a wormery! You’ve got some great ideas here!
What fun ideas for exploring science. I am sure that I will be trying some of these soon!
Hey this is really cool… Kids gonna love and learn alot. Thanks and keep sharing
I like these all kinds of science project!!
This is a fantastic resource for teachers, parents, and students. Children always enjoy experimenting, and participating in hands on acitivies is so important for science learning.