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Lesson 38 of 84 ยท Climate

Lessonโญ 30 XP๐ŸŒ‹ Rock Realm

Weathering: Breaking Down Rocks (Part 2)

๐ŸงชLab Brief #38

Weathering: Breaking Down Rocks (Part 2).

๐ŸŽฏ Your mission

Learn the rule. Then catch nature using it.

โšก The twist

Weather isn't random โ€” it's just complicated.

๐Ÿคฏ

Mind = Blown

๐ŸŒŠ The deepest part of the ocean is deeper than Mount Everest is tall.

๐Ÿ”ฎ

Make a hypothesis first

Before you observe: what shape will it leave?

What You'll Learn

The rock cycle shows how rocks change from one type to another. Igneous rocks form from cooled magma, sedimentary rocks form from compressed sediment, and metamorphic rocks form under heat and pressure.

Key Words

  • erosion
  • weathering
  • sediment

Steps

Step 1 โ€” Read

Read the introduction and identify the main idea of this lesson.

Step 2 โ€” Do

Test rock hardness using Mohs scale: try scratching rocks with your fingernail, a penny, and a nail. Rank them from softest to hardest.

Step 3 โ€” Observe

Use your senses (except taste) to describe what you notice.

Step 4 โ€” Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

What causes weathering?

๐ŸŒ

Where you see this in real life

Today's weather, tomorrow's beach, next century's coastline โ€” all this.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Look at the sky for 5 minutes and try to predict tomorrow's weather.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's the slowest change you can think of?โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐Ÿ’งShare card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

Checkout complete lesson on Climate for 8th Grade

Get the full Climate track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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