Lesson 41 of 84 ยท Earth Systems
Lessonโญ 30 XP๐ Rock RealmTypes of Rocks: Sedimentary (Part 2)
Earth Systems.
๐ฏ Your mission
Understand the idea. Then look for it everywhere.
โก The twist
The slowest changes are the biggest ones.
Mind = Blown
๐ชจ Every grain of sand on every beach used to be a mountain.
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
- fossil
Steps
Read about Earth Systems and write down three key facts.
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.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What are tectonic plates?
Where you see this in real life
Today's weather, tomorrow's beach, next century's coastline โ all this.
Stretch Challenge
Try this in real life this week.
Look at the sky for 5 minutes and try to predict tomorrow's weather.
For the dinner table
โWhat's the slowest change you can think of?โ
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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.
