Earthquake Gelatin Shake Test Activity
Build tiny structures on a gelatin slab and shake the tray to simulate an earthquake — a jiggly, hands-on way to learn about building and force.
What You'll Need
- 1Gelatin mix (several boxes for a large batch)
- 2Large baking pan
- 3Toothpicks
- 4Marshmallows
- 5Sugar cubes
- 6Small wooden blocks
What You'll Need
Gelatin mix (several boxes for a thick slab)
A large baking pan
Toothpicks and marshmallows
Sugar cubes
Small wooden blocks
How to Play
Make a large batch of firm gelatin and pour into a baking pan. Refrigerate until solid.
Unmold the gelatin slab onto a baking tray.
Give your child building materials: toothpicks, marshmallows, sugar cubes, small blocks.
Challenge them to build structures on top of the jiggly gelatin surface.
When buildings are ready, shake the tray to simulate an earthquake.
Watch what stands and what falls. Ask: "Why did that one survive? Why did the tall one fall?"
Rebuild with improvements and test again. Try wider bases, shorter heights, triangle supports.
Tips
The gelatin acts like real earthquake ground — it transmits vibrations unpredictably, just like soil during a quake.
This is real engineering: your child hypothesizes, builds, tests, observes, and modifies. That's the scientific method.
Encourage predictions before each shake: "Do you think this one will stand? Why?"
Increase shake intensity each round for more dramatic collapses.
The squishy, jiggly gelatin surface is a sensory experience in itself — kids love pressing their hands into it between building rounds.
Age Adaptation Tips
School-age kids can take more ownership. Let them lead the activity, experiment with variations, and explain what they learned.
Frequently Asked Questions
How long does this activity take?
This activity takes about 30 min, with 10 min of preparation time beforehand.
What materials do I need?
You'll need: gelatin mix (several boxes for a large batch), large baking pan, toothpicks, marshmallows, sugar cubes, and 1 more item.
What age is this activity for?
This activity is designed for 5-8 years. You can adapt it for younger or older children by adjusting the complexity.
Can this be done indoors?
This activity is designed for indoor play, making it perfect for rainy days or when you're staying inside.
How difficult is this activity?
This activity has a moderate difficulty level. It may require some preparation or guidance, but is manageable for most families.
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