Lesson 5 of 84 · Earth's History
Lesson⭐ 30 XP🌋 Rock RealmTypes of Rocks: Igneous
Earth's History.
🎯 Your mission
Learn the rule. Then catch nature using it.
⚡ 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
Sedimentary rocks form in layers, with the oldest layers at the bottom. Geologists use these layers to determine the relative age of rocks and the fossils they contain.
Key Words
- condensation
- precipitation
Steps
Study the diagram and label the parts you recognize.
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.
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 are the three types of rocks?
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's History for 4th Grade
Get the full Earth's History track as a printable PDF — all lessons, worksheets, and answer keys.