Lesson 75 of 84 ยท Fossils
Lessonโญ 30 XPTypes of Rocks: Igneous (Part 3)
Types of Rocks: Igneous (Part 3).
๐ฏ Your mission
Learn the rule. Then catch nature using it.
โก The twist
Nature loves to surprise the careful watcher.
Mind = Blown
๐ฌ The more you look, the more nature shows you.
Make a hypothesis first
Before you start: write down what you think will happen, and why.
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
- weathering
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
This shows up in your everyday life more than you'd think.
Stretch Challenge
Try this in real life this week.
Try one experiment in real life this week โ even a tiny one.
For the dinner table
โWhat's the most surprising thing you learned today?โ
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 Fossils for 3rd Grade
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