Lesson 68 of 84 · Earth's History
Experiment⭐ 30 XP🌋 Rock RealmTypes of Precipitation (Part 2)
Earth's History.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
Today's mountain was yesterday's ocean floor.
Mind = Blown
🪨 Every grain of sand on every beach used to be a mountain.
Make a hypothesis first
Guess: where will the water go first?
What You'll Learn
Precipitation is water that falls from clouds to the ground. It comes in several forms—rain, snow, sleet, and hail—depending on the temperature of the air the water passes through as it falls.
Key Words
Tap a word to see its definition.
Materials Needed
- rocks
- sand
- clay
Safety First
- Protect your work surface with newspaper or plastic.
Steps
Read the introduction and identify the main idea of this lesson.
Model erosion: tilt a tray of soil and pour water from a cup at the top. Observe how channels form. Try adding plants or rocks to slow the erosion.
Draw a detailed diagram of what you observe.
Write a conclusion: what did your results show? Did they match your prediction?
Check Your Understanding
Question 1
1 of 3What causes weathering?
Where you see this in real life
Today's weather, tomorrow's beach, next century's coastline — 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
“What's the slowest change you can think of?”
Next Smart Experiment
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