76

Lesson 76 of 84 ยท Climate

Experimentโญ 30 XP๐ŸŒ‹ Rock Realm

Types of Rocks: Sedimentary (Part 3)

๐ŸงชLab Brief #76

Types of Rocks: Sedimentary (Part 3).

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

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

Groundwater fills spaces between rocks and soil underground. Aquifers are underground layers of rock that hold and transmit water. Many communities depend on wells that tap into aquifers.

Key Words

  • weathering
  • sediment

Materials Needed

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

Safety First

  • Clean up spills immediately to prevent slipping.
  • Use materials only as directed in the experiment.

Steps

Step 1 โ€” Read

Read about Climate and write down three key facts.

Step 2 โ€” Do

Model plate tectonics using graham crackers on frosting. Push them together, pull them apart, and slide them past each other to show convergent, divergent, and transform boundaries.

Step 3 โ€” Observe

Compare the before and after states.

Step 4 โ€” Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What are tectonic plates?

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

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๐Ÿ’งShare card

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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

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Types of Rocks: Sedimentary (Part 3) โ€” Climate | 8th Grade Science | LittleActivity | LittleActivity