Lesson 76 of 84 ยท Climate
Experimentโญ 30 XP๐ Rock RealmTypes of Rocks: Sedimentary (Part 3)
Types of Rocks: Sedimentary (Part 3).
๐ฏ Your mission
Set it up. Test it. Be amazed.
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
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
Read about Climate 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
This is shaping the ground you walk on, slowly, every single day.
Stretch Challenge
Try this in real life this week.
Find a rock outside and try to guess how old it is.
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 Climate for 8th Grade
Get the full Climate track as a printable PDF โ all lessons, worksheets, and answer keys.
