Slide or Roll?

What You'll Learn

Springs store energy when you squish or stretch them. When you let go, they bounce back!

Step 1 — Read

Talk about what you already know about Forces.

Step 2 — Do

Build a simple lever with a ruler and pencil. Try lifting objects on one end by pushing the other.

Step 3 — Observe

Compare what happened to what you predicted.

Step 4 — Record

Tell the class one thing you learned today.

1 of 3

Why do things fall when you drop them?