Lesson 76 of 84 ยท Earth's History
Lessonโญ 30 XP๐ Rock RealmTypes of Rocks: Sedimentary (Part 3)
Earth's History.
๐ฏ Your mission
Master the concept. Use it tomorrow.
โก The twist
The slowest changes are the biggest ones.
Mind = Blown
๐ The deepest part of the ocean is deeper than Mount Everest is tall.
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
- condensation
- precipitation
Steps
Read about Earth's History 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 Earth's History for 4th Grade
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