Classroom mode
Run it in class
Does the shape of a piece of steel decide if it floats?
Show of hands — before you project anything
Predict first: will a solid steel ball or a hollow steel boat of the same weight float? Then watch the morph and explain why.
- A Way more than you'd guess
- B About what you'd guess
- C Way less than you'd guess
Count the votes out loud. Hold them to it — then watch.
Project it (fullscreen)
Discussion prompts
- Predict first: will a solid steel ball or a hollow steel boat of the same weight float? Then watch the morph and explain why.
- Guess what fills the inside of a ship's hull and how that helps it float, before we reveal it.
- Predict whether adding more cargo makes a floating ship sit higher or lower in the water, then test with a foil boat.
Where it shows up in real life
- Giant steel cargo ships and ferries riding on the water.
- A foil boat or a plastic cup floating in the sink or bathtub.
- Ice cubes bobbing at the top of a glass of juice.
A prediction-first worksheet — no answer key.
zero prep · no login · any projector
Winding down at home? Family mode ·
Explore every question
Does the shape of a piece of steel decide if it floats?
Predict — what do you think will happen, and why?
Talk about it
- Predict first: will a solid steel ball or a hollow steel boat of the same weight float? Then watch the morph and explain why.
- Guess what fills the inside of a ship's hull and how that helps it float, before we reveal it.
- Predict whether adding more cargo makes a floating ship sit higher or lower in the water, then test with a foil boat.