Lesson 56 of 84 · Earth Systems
Lesson⭐ 30 XP🌋 Rock RealmHow Rivers Shape Land (Part 2)
Earth Systems.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
Today's mountain was yesterday's ocean floor.
Mind = Blown
🌋 There are 1,500 active volcanoes on Earth right now.
Make a hypothesis first
Guess: where will the water go first?
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
Tap a word to see its definition.
Steps
Read about Earth Systems 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.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Earth Systems for 7th Grade
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