Ramps Make Work Easier (Part 2)

What You'll Learn

Simple machines make work easier. A ramp helps you move heavy things to a higher place.

Step 1 — Read

Look at the new words. Can you say each one?

Step 2 — Do

Make a ramp from a book. Roll a marble down from different heights. Measure how far it rolls.

Step 3 — Observe

Use your senses to describe what you notice.

Step 4 — Record

Write 1-2 sentences about what happened.

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What does friction do?