8

Lesson 8 of 84 ยท Earth Systems

Experimentโญ 30 XP๐ŸŒ‹ Rock Realm

The Rock Cycle

๐ŸงชLab Brief #8

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
  • igneous

Materials Needed

  • cotton balls
  • food coloring
  • clear container
  • rocks
  • sand
  • clay

Safety First

  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.
  • Tie back long hair before starting the experiment.

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

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

๐Ÿ†

Stretch Challenge

Try this in real life this week.

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

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.

๐ŸงฒShare 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 7th Grade

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