Lesson 16 of 84 ยท Weathering and Erosion
Experimentโญ 30 XP๐ Rock RealmOcean Currents and Climate
Weathering and Erosion.
๐ฏ Your mission
Run the experiment. Find out what really happens.
โก The twist
Weather isn't random โ it's just complicated.
Mind = Blown
๐ The deepest part of the ocean is deeper than Mount Everest is tall.
Make a hypothesis first
Before you observe: what shape will it leave?
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
- fossil
Materials Needed
- cotton balls
- food coloring
- clear container
- rocks
Safety First
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
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
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Checkout complete lesson on Weathering and Erosion for 4th Grade
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