Lesson 51 of 84 ยท Weathering and Erosion
Lessonโญ 30 XP๐ Rock RealmOcean Currents and Climate (Part 2)
Weathering and Erosion.
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
Ocean currents distribute heat around the planet, affecting climate worldwide. Warm currents flow from the equator toward the poles, and cold currents flow from the poles toward the equator.
Key Words
- metamorphic
- sedimentary
Steps
Read about Weathering and Erosion and write down three key facts.
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.
Watch carefully for any changes and note the time.
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What causes wind?
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 Weathering and Erosion for 4th Grade
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