37 Amazing Magical Science Experiments Kids Will Love

Try these magical science experiments for kids. Simple to set up at home and loads of fun for families. You kids will feel like they just got their letter from Hogwarts.

I recently organized a Harry Potter event for tweens. It was a blast! We made wands and dressed up in robes. The best part of the event was the magical activities. These were actually science experiments in disguise. We had a lot of fun with them and the tweens were super impressed.

Sometimes science can be downright magical.

Download a free Science Activity Sheet from the library. You’ll find the Activity Sheets in the free printables.

Set up some of these magical science experiments and impress your kids by bringing gummy worms to life, changing the colors of liquid, growing crystals, or magically inflating balloons with a simple spell.

Have fun! Enjoy the wide eyed wonder and the exclamations of delight. I know I did!

36 Magical Science Experiments To Wow Your Kid

Bubble Bubble Toil and Trouble (Fizzing Experiments)!

1. Bitz and Giggles has instructions for great experiment that lets you make gummy worms come alive!
2. Don’t have gummy worms? DO the same thing with raisins
3. Baking soda and vinegar science is always magical. Simple ingredients and loads of fun!!
4. Magic rainbow rocks are a fun way for kids to discover a hidden surprise and demonstrate the reaction of combusting baking soda with vinegar.
5. A bubbling lava lamp really wowed our library group and was so easy to put together.
6. Of course we had to include the Elephant Toothpaste chemical reaction.
7. Turn a round pan of baking soda into a vibrant globe.
8. Here’s another baking soda eruption. This time it is powered by a lemon.

Growing Magical Crystals

9. Transform eggs into sparkling geodes. In this magical science experiment, watch crystals grow as kids turn eggshells into sparkling geodes! This hands-on chemistry activity is sure to wow—click through for the full tutorial.
10. Grow your own glittering snowflake ornaments with this magical winter science experiment! Kids can create shimmering crystals that double as festive decorations.
11. With this fun science experiment, you can create delicious, colorful rock candy at home. Kids will love watching sugar crystals grow into sweet treats.
12. Grow edible galaxy-themed sugar crystals in this fun science experiment! Kids will love creating shimmering, space-inspired treats—click through for the full tutorial.
13. Grow a giant rainbow made of sparkling crystals in this vibrant science experiment! Kids will be amazed as vibrant colors and crystals appear.

Magical Slime

14. Have you ever seen slime that changes color in response to heat! How cool is that? Head over to toLeft Brain where you will find a tutorial. This will really wow your kids.
15. Babble Dabble Do combines art and science and transforms slime into a beautiful sun catcher.
16. This magnetic slime from Frugal Fun For Boys looks like something you’d see on a horror movie (which means it is guaranteed to impress).
17. How about some slime that glows in the dark?

Magical Liquids

18. Did you know you can make magic with milk? Try this simple experiment and your kids can watch as milk dances right before their eyes! Free printable included!
19. A magical Skittles experiment helps you explore colors, water stratification and more! This cool STEM activity perfect to do at home during the summer!
20. Kids love this magic pepper and soap science experiment! You have all the supplies you need in the kitchen. Try it today!
21. We made this potion that changes color. All you need is a purple cabbage and some vinegar and baking soda. This one really does look like magic. The kids were awed when it changed color.
22. Use a special tea to make this color changing lemonade.
23. Transform liquid into a solid and make ice cream in the process. It doesn’t get more magical than that!
24. A similar experiment turns juice into a slushie.
25. Make ice grow and create an ice tower

Want more Magic?

Check out our amazing Harry Potter Science Experiments. Create your own potions class, explore magical creatures, or enjoy some herbology. You can even try your hand at charms and transfiguration!

Science Magic Tricks For School

Science based magic tricks are a lot of fun and easy to do. These science magic tricks are great for a school project or set up your own magic show at home.

26. I did this magical plastic bag experiment with some tweens and it was huge success. We used bamboo skewers instead of pencils. The record number inserted in a bag was 35.
27. Defy gravity with magnets and a paper clip. This is a very cool magic trick.
28. Use a magic spoon to separate salt and pepper. It is very impressive.
29. Make a coin disappear with a jar and some water.

Some Final Experiments

30. Make an egg shell disappear without ever touching it. Pure magic!
31. How do you inflate a balloon without using breath? With science of course? At our Harry Potter event we inflated balloons by capturing Fungus Breath. The kids were really impressed with the results. It’s super easy to do. Download a free activity sheet to find another simple way to inflate balloons.
32. Shape tooth picks into stars without touching them. This is a cool trick from Rookie Parenting.
33. Use magnets to make a pen balance on its point and spin.
34. Transform a sewing needle into a compass that points north.
35. Turn a penny green – this happens over the course of a few days, but it is still impressive.
36. I love these magical color changing unicorn noodles.
37. Watch an egg get sucked into a bottle by air pressure

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This post is part of my growing collection of science and STEM posts. Need more inspiration to keep kids busy? Head over to our Kids Activities page where you’ll find hundreds of fun ideas all in one place.