Collecting Rocks (Part 3)

What You'll Learn

Rocks are always changing! Wind, water, and ice break them down very slowly.

Step 1 — Read

Read and learn: Rocks are always changing! Wind, water, and ice break them down very slowly.

Step 2 — Do

Sort, group, or arrange the items as shown.

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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What does a thermometer measure?