Looking for Halloween STEM activities that are actually doable in a real classroom? I’ve rounded up 20 ideas for grades 2–8, from hands-on engineering challenges to quick, paper-only STEM activities for days when you don’t have time to gather materials.
As I was preparing for this blog post, the number of Halloween STEM activities I had in mind just…kept….growing… like some kind of terrifying creature from beyond! 😂
I know it’s not cool to crown yourself, but I’m feeling a little like the (unofficial) Queen of Halloween STEM over here. Check out my 20 Halloween STEM activities below and let me know if I have your approval to wear the crown. 👑👻
You’ll find activities for everything from a full STEM class to a 5-minute bell ringer, so jump to the section that fits the time and materials you have available.
Ready to see the 20 Halloween STEM Activities? Let’s gooooo!
Browse the Halloween STEM Activities:
Hands-On (#1–13)
- Halloween STEM Activity #1: Bone Bridge
- Halloween STEM Activity #2: Wings Wanted
- Halloween STEM Activity #3: Treat Toss
- Halloween STEM Activity #4: Creature Catcher
- Halloween STEM Activity #5: Ghosts in the Graveyard
- Halloween STEM Activity #6: Create-ure
- Halloween STEM Activity #7: Pumpkin Pedestals
- Halloween STEM Activity #8: Eyeball Dish
- Halloween STEM Activity #9: Pirate Ship
- Halloween STEM Activity #10: Pumpkin Picker
- Halloween STEM Activity #11: Quick Build – Catch & Release
- Halloween STEM Activity #12: Quick Build – Throne of Bones
- Halloween STEM Activity #13: Quick Build – Bat Branch
Paper-Only / No Materials (# 2 and #14–20)
- Halloween STEM Activity #2: Wings Wanted
- Halloween STEM Activity #14: Speak–Listen–Draw Communication
- Halloween STEM Activity #15: See–Notice / Think–Wonder
- Halloween STEM Activity #16: STEM Improv
- Halloween STEM Activity #17: Would You Rather STEM
- Halloween STEM Activity #18: Analyze This vs. That
- Halloween STEM Activity #19: 8 Ways to Use…
- Halloween STEM Activity #20: Stop the Story STEM™
Halloween STEM Activity #1:
Bone Bridge STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Build a “bone” bridge for length, strength, or capacity. Great for forces and structures.
- Non-Halloween angle: Skeletal system, bridges/transportation, forces.
- Materials: Cotton swabs + basic makerspace supplies.
- Time guide: 45–60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
🎃 Or save with the Halloween STEM 6-Pack.
Halloween STEM Activity #2:
Wings Wanted STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 30-60 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Design bat-wing paper planes for distance, accuracy, or trick shots.
- Non-Halloween angle: Bats & flight (pair with Stellaluna).
- Materials: Paper & scissors (tape optional).
- Time guide: 30–60 minutes.
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
🎃 Or save with the Halloween STEM 6-Pack.
Halloween STEM Activity #3:
Treat Toss STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 |
What kids do: Build a launcher to send candy for distance and/or accuracy.
- Non-Halloween angle: Generic “treat” delivery; focus on forces & projectiles.
- Materials: Craft sticks, rubber bands, spoons, tape, candies (or small objects).
- Time guide: 45–60+ min.
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
🎃 Or save with the Halloween STEM 6-Pack.
Halloween STEM Activity #4:
Creature Catcher STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 |
What kids do: Build a device that “catches” as many creatures as possible.
- Non-Halloween angle: spiders, food chains & webs, energy pyramids, habitats.
- Materials: Pipe cleaners, string, tape, plastic spiders or tokens (stirrers/craft sticks optional).
- Time guide: 45–60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
🎃 Or save with the Halloween STEM 6-Pack.
Halloween STEM Activity #5:
Ghosts in the Graveyard STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 |
What kids do: Design a ghost transporter to lift “ghosts” to a pulley.
- Non-Halloween angle: “Grapes in the Vineyard” / rescue lift simulation.
- Materials: Cotton balls/marshmallows, plates, string, pulleys, tape.
- Time guide: 45–60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
🎃 Or save with the Halloween STEM 6-Pack.
Halloween STEM Activity #6:
Create-ure STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 60+ min | Grades 2-8 |
What kids do: Invent a never-before-seen creature to demonstrate adaptations, habitats, heredity, and more.
- Non-Halloween angle: Pure life science tie-ins; not seasonal.
- Materials: Newspaper & tape (minimum) up to full makerspace (see image bottom-left)
- Time guide: 60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
Halloween STEM Activity #7:
Pumpkin Pedestals STEM Challenge
Halloween STEM Activity #8:
Eyeball Dish STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 |
What kids do: Design a dish for Lou the monster’s spare eyeballs—safe, clean, and easy to find!
- Non-Halloween angle: Monster tie-ins with picture books; or generic “storage dish” challenge.
- Materials: Makerspace supplies; eyeball ping-pong balls (Dollar Tree) or any balls.
- Time guide: 45–60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
Halloween STEM Activity #9:
Pirate Ship STEM Challenge
Halloween STEM Activity #10:
Pumpkin Picker STEM Challenge
🎥 ⬆️ Watch the video walk-through of this challenge for tips, modifications, extensions & more.
| Hands-on | 45-60 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Build a device to harvest a field of pumpkins efficiently.
- Non-Halloween angle: Fall harvest/automation engineering.
- Materials: Makerspace supplies; pumpkins can be paper balls/blocks.
- Time guide: 45–60+ min (it’s fine to stop early for reflection).
Notes: Students will take as much time to build, test, & share as you give them. Don’t be afraid to stop the build before they finish to discuss & reflect to that point.
Halloween STEM Activity #11:
Quick Build: Catch & Release
| Quick Build | 15-20 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Design a device to safely trap a spider and release it outdoors.
- Non-Halloween angle: Everyday problem-solving.
- Materials: Pipe cleaners, index cards/cardboard, tape (sub as needed).
- Time guide: 15–20 min (add time for reflection).
Halloween STEM Activity #12:
Quick Build: Throne of Bones
| Quick Build | 15-20 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Build a throne “made of bones,” ≤6 in tall with a 2 in seat.
- Non-Halloween angle: Skeletal system or picture books about skeletons.
- Materials: Cotton swabs, pipe cleaners, index cards, tape
- Time guide: 15–20 min (add time for reflection).
Halloween STEM Activity #13:
Quick Build: Bat Branch
| Quick Build | 15-20 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Create a tree that supports at least one hanging bat.
- Non-Halloween angle: Bats & life science; pair with Stellaluna.
- Materials: Pipe cleaners, index cards/cardboard, tape
- Time guide: 15–20 min (add time for reflection).
Halloween STEM Activity #14:
Speak-Listen-Draw Communication
| Paper Only | 10-20 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Practice giving/receiving directions to recreate a mystery picture—great for the 4C “Communication.”
- Non-Halloween angle: Use original math/prepositions version or student-made drawings.
- Materials: Paper & pencil and print cards.
- Time guide: 10–20 min (swap roles at least once).
Halloween STEM Activity #15:
See-Notice / Think Wonder
| Paper Only | 5-10 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Observe a picture, capture what they notice and wonder—mindful starts that spark inquiry.
- Non-Halloween angle: Use the Invertebrates set or any science image bank.
- Materials: Project on screen or printouts; no extra supplies.
- Time guide: 3-5 (10 min with share-out).
Related: See the Invertebrates See-Notice / Think-Wonder resource.
Halloween STEM Activity #16:
STEM Improv
| Paper Only | 10-15 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Randomize an object, material, and function for rapid design prompts—336 combinations!
- Non-Halloween angle: Choose fall or original STEM Improv sets.
- Materials: None required (screen/print work).
- Time guide: 10–15 min (+ share).
If you prefer a non-Halloween set, try the original bundle or the four seasons bundle.
Halloween STEM Activity #17:
Would You Rather STEM
| Paper Only | 5-10 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Debate Would You Rather prompts from maker/user perspectives and choose tech to “give up.”
- Non-Halloween angle: Use original Set 1 or Set 2.
- Materials: None beyond paper or slides.
- Time guide: 5–10 min.
Halloween STEM Activity #18:
Analyze This vs. That
| Paper Only | 5-10 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Compare two solutions to a similar problem; list strengths, weaknesses, and research questions.
- Non-Halloween angle: Use original Set 1 or Set 2.
- Materials: Screen or paper.
- Time guide: 5–10 min.
Halloween STEM Activity #19:
8 Ways to Use…
| Paper Only | 5-10 min | Grades 2-8 | Last-Minute ✅ |
What kids do: Brainstorm eight different uses for everyday objects—encourage varied verbs to stretch creativity.
- Non-Halloween angle: Choose neutral objects or non-seasonal sets.
- Materials: None beyond paper or slides.
- Time guide: 5–10 min.
Halloween STEM Activity #20:
Stop the Story STEM™
| Paper Only | Flex timing | Grades 3-6 | Last-Minute ✅ |
What kids do: Choose any (spooky) picture book, pause at a key problem, and design solutions. You can skip the build if short on time.
- Non-Halloween angle: Works with any story; try Little Red Riding Hood or Stellaluna for light seasonal vibes.
- Materials: Book or read-aloud link; optional makerspace materials for building.
- Time guide: Fully flexible; run as a discussion/sketch-only session if needed.
🎃 Ready-to-teach Halloween STEM Activities 6‑Pack
Bonus Halloween Ideas:
Layer in Halloween ELA or math alongside these Halloween STEM Activities:
- Creepy Quick Writes
- Twilight Zone Plot Diagram, Summary & Writing Activities
- Graphing with Candy (or see the blog post)
- Spooky Creative Writing – Scary Fairy Tale Rewrites (or see blog post)
- 7 Awesome Halloween Writing Activities (Blog Post)
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