46

Lesson 46 of 84 ยท Climate

Lessonโญ 30 XP๐ŸŒ‹ Rock Realm

Earthquakes: When the Ground Shakes (Part 2)

๐ŸงชLab Brief #46

Earthquakes: When the Ground Shakes (Part 2).

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

โšก The twist

The slowest changes are the biggest ones.

๐Ÿคฏ

Mind = Blown

๐Ÿชจ Every grain of sand on every beach used to be a mountain.

๐Ÿ”ฎ

Make a hypothesis first

Predict: which will erode faster?

What You'll Learn

Earthquakes happen when stress builds up along faults in Earth's crust and suddenly releases. Seismic waves radiate from the focus, shaking the ground.

Key Words

  • mineral
  • igneous
  • metamorphic

Steps

Step 1 โ€” Read

Read about Climate and write down three key facts.

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

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What is an aquifer?

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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