Comparing Our Results (Part 4)

What You'll Learn

Good scientists repeat their experiments to make sure the results are the same each time.

Keep small objects away from young children.
Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Dispose of materials properly after the experiment.

Step 1 — Read

Read and learn: Good scientists repeat their experiments to make sure the results are the same each time.

Step 2 — Do

Follow the steps one at a time.

Step 3 — Observe

Look for something that changed. What is it?

Step 4 — Record

Circle the correct answer on your worksheet.

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Is it okay to make mistakes in science?