Lesson 21 of 84 · Earth's History
Experiment⭐ 30 XP🌋 Rock RealmGlaciers: Rivers of Ice
Earth's History.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Weather isn't random — it's just complicated.
Mind = Blown
🌋 There are 1,500 active volcanoes on Earth right now.
Make a hypothesis first
Before you observe: what shape will it leave?
What You'll Learn
River systems shape the land over time. Young rivers have steep, V-shaped valleys. Mature rivers meander across floodplains. Old rivers have wide, flat valleys and deltas.
Key Words
- mineral
- climate
- atmosphere
Materials Needed
- magnifying glass
- newspaper
- spray bottle
- cups
- thermometer
- rain gauge
Safety First
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
Steps
Read about Earth's History and write down three key facts.
Set up a weather station: use a thermometer, rain gauge (a jar with a ruler), and wind sock (a plastic bag on a stick). Record data for one week.
Note any unexpected results and think about why they happened.
Share your findings with the class or a partner and discuss what you learned.
Check Your Understanding
Question 1
1 of 3What is a volcano?
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
We'll pick an experiment that matches exactly how you're thinking right now.
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Send it to a parent who's looking for a 10-minute kitchen science win.
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