31 Halloween STEM and STEAM Activities and Projects

Directions

1. Flying Ghosts Tea Bag Experiment — WOW-worthy experiment where tea bag ghosts take flight; exciting for little scientists.
2. Magnetic Flying Ghosts — Ghosts fly using magnetism and engineering; Halloween twist on the Wingardium Leviosa experiment.
3. Spooky Spider Magnetic Science — Build a spider web with a magnet-powered spider that dances and wiggles around it.
4. Halloween Skittles Experiment — Use candy to make spooky designs then watch the science unfold.
5. Halloween Balloon Races — Physics challenge exploring Newton's Laws of Motion; great for classroom, homeschool or party.
6. Halloween Marshmallow Science — Kids decorate marshmallows then learn about the expanding energy of heat.
7. Gummy Mummies — Combines Lego, history and science to create gummy mummies.
8. Glow in the Dark Science — Collection of favourite glow-in-the-dark activities plus the science behind the glow.
9. Halloween Magic Milk — Magic milk experiment mixing Halloween colours using the colour wheel.
10. Pumpkin Preservation Experiment — Test the best ways to keep carved pumpkins fresh until October 31st.
11. Grow Scented Halloween Crystals — Grow durable, scented crystals that work as Halloween decorations.
12. Halloween Moon Dough – Fizzing Ghosts! — Sensory moon dough combined with chemistry to create fizzing ghosts.
13. Halloween Balloon Experiment — Chemical reaction reveals spooky designs; kids make balloons or ghosts.
14. Monster Eyes – A Halloween Egg in Vinegar Experiment — Classic rubber egg project turned into squishy, bouncy Monster Eyeballs.
15. Puking Pumpkins – Volcano Pumpkin Science Experiment — Carve a pumpkin then use chemistry to turn it into an erupting volcano.
16. Make A Glow In The Dark Lava Lamp — Traditional lava lamp experiment given a glow-in-the-dark Halloween twist.
17. Spooky Glow-in-the-Dark Milk Plastic — Make casein plastic from milk that glows; create spooky trinkets and toys.
18. Candy Catapult — Engineer a catapult and launch candy into pumpkins and cauldrons; great party game.
19. Candy Engineering and Math Challenge — Candy construction project building math, physics, engineering and fine motor skills.
20. Build a Skeleton Hand — Biology model of the hand from black construction paper, decorated with markers or paint.
21. Frankenstein Candy Dispenser DIY — Learn simple machines building a Frankenstein dispenser from cups, sticks, cardboard and candy.
22. Build a Haunted House Challenge — Quick challenge using recycled materials and creativity to build a haunted house.
23. Halloween Mummy Circuit Craft — Simple Halloween mummy craft powered up with a basic circuit.
24. Halloween Bat STEM Craft — Toilet roll bat craft with glowing red eyes using a simple circuit.
25. Build a Fruit Battery out of Pumpkins! — Build a battery from pumpkins and squash; learn cells, current and voltage, light an LED.
26. Halloween Coding Activity — Screen-free printable coding activity teaching sequencing; free for mailing list members.
27. Glow Salt Circuits — Easy salt circuits with big wow factor when the lights go off; elementary to high school.
28. Build a Witch or Wizard Circuit Wand — Make a wand that lights up at your command, or by closing the circuit.
29. Wizards Coding Printable — Free screen-free magical wizards coding fun pack of challenges.
30. Pumpkin Squishy Circuits — Play dough squishy circuits on pumpkins; dough dries out so make it fresh.
31. Halloween Candy Bomblicious Recipe — Sweet treats to make with kids; smash them open for surprises inside. Great for parties.
32. Candy Science — Unit study diving deep into the science of candy making.
33. Glow in the Dark Jello Recipe — Explore polymers and eat them too; perfect for a Halloween party.
34. Layered Lollipops — Beautiful layered density experiment using lollipops and hard candies.
35. Glow In The Dark Oobleck — Oobleck that glows with or without a black light.