Lesson 77 of 84 · Earth Materials

Lesson⭐ 30 XP🌋 Rock Realm

Comparing Rocks (Part 3)

🧪Lab Brief #77

Earth Materials.

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

The slowest changes are the biggest ones.

🤯

Mind = Blown

🪨 Every grain of sand on every beach used to be a mountain.

🔮

Make a hypothesis first

Predict: which will erode faster?

What You'll Learn

Rocks can be sorted by size, color, shape, and texture. Geologists study rocks to learn about Earth!

Key Words

mineral
fossil
erosion

Steps

Step 1 — Read

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

Step 2 — Do

Collect soil from two different places. Compare the color, texture, and what you find in each.

Step 3 — Observe

Use your senses to describe what you notice.

Step 4 — Record

Write 1-2 sentences about what happened.

Check Your Understanding

Question 1

1 of 3

What makes rain?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

This is shaping the ground you walk on, slowly, every single day.

🏆

Stretch Challenge

Try this in real life this week.

Find a rock outside and try to guess how old it is.

👨‍👩‍👧

For the dinner table

“What's the slowest change you can think of?”

🎯

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🖨️

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