Lesson 40 of 84 · Climate
Lesson⭐ 30 XP🌋 Rock RealmTypes of Rocks: Igneous (Part 2)
Types of Rocks: Igneous (Part 2).
🎯 Your mission
Understand the idea. Then look for it everywhere.
⚡ The twist
The slowest changes are the biggest ones.
Mind = Blown
🪨 Every grain of sand on every beach used to be a mountain.
Make a hypothesis first
Predict: which will erode faster?
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
- weathering
- sediment
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 Climate for 8th Grade
Get the full Climate track as a printable PDF — all lessons, worksheets, and answer keys.