43

Lesson 43 of 84 ยท Earth Systems

Experimentโญ 30 XP๐ŸŒ‹ Rock Realm

The Rock Cycle (Part 2)

๐ŸงชLab Brief #43

Earth Systems.

๐ŸŽฏ Your mission

Predict it first. Then prove yourself right (or wrong).

โšก The twist

Today's mountain was yesterday's ocean floor.

๐Ÿคฏ

Mind = Blown

๐ŸŒ‹ There are 1,500 active volcanoes on Earth right now.

๐Ÿ”ฎ

Make a hypothesis first

Guess: where will the water go first?

What You'll Learn

Erosion moves weathered rock and soil from one place to another by water, wind, ice, or gravity. Rivers carve valleys, wind shapes sand dunes, and glaciers grind mountains.

Key Words

  • fossil
  • mineral

Materials Needed

  • magnifying glass
  • newspaper
  • spray bottle

Safety First

  • Dispose of materials properly after the experiment.
  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.

Steps

Step 1 โ€” Read

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

Step 2 โ€” Do

Investigate soil layers: fill a jar with soil and water, shake it, and let it settle overnight. Identify the layers of clay, silt, sand, and organic matter.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What is the rock cycle?

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.

๐ŸŒShare 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 Earth Systems for 8th Grade

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

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