Measuring with Rulers and Scales (Part 4)

What You'll Learn

Tools like rulers, magnifying glasses, and thermometers help scientists measure and observe.

Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Dispose of materials properly after the experiment.
Handle glass items carefully to avoid breakage.

Step 1 — Read

Look at the picture and read the labels.

Step 2 — Do

Make a parachute from a plastic bag and string. Drop it from a height and time how long it takes to land.

Step 3 — Observe

Draw a picture of what you observe.

Step 4 — Record

Share your results with a partner.

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What tool do you use to measure how heavy something is?