Rocking Around: Classifying Rocks
Rocks are all around us! But did you know there are different types? First, we have igneous rocks. These are formed when molten lava cools down. They can be found near volcanoes and can have crystals! Next are sedimentary rocks. These form over millions of years as small bits of earth and sand get pressed together. You can often find fossils in sedimentary rocks! Finally, we have metamorphic rocks. These are rocks that have changed due to heat and pressure. Imagine squishing a piece of bread into a ball - that's like a metamorphic rock! Can you find examples of these rocks in your backyard? Happy rock hunting!
Question 1
What are igneous rocks formed from?
Molten lava
Explanation. Igneous rocks are formed when molten lava cools down.
Sand and earth
Fossils
Bread
Heat and pressure
Question 2
Where can you commonly find sedimentary rocks?
Near volcanoes
In your backyard
At the beach
In the desert
All of the above
Explanation. Sedimentary rocks can be found in a variety of places, including your backyard, beaches, and deserts.
Question 3
What can often be found in sedimentary rocks?
Crystals
Fossils
Explanation. Fossils can often be found in sedimentary rocks.
Lava
Heat and pressure
Water
Question 4
How do metamorphic rocks change?
By cooling down
By being pressed together
By heat and pressure
Explanation. Metamorphic rocks have changed due to heat and pressure.
By being squished into a ball
By forming crystals
Question 5
What is the process of forming sedimentary rocks?
Cooling of lava
Heat and pressure
Small bits of earth and sand getting pressed together
Explanation. Sedimentary rocks form over millions of years as small bits of earth and sand get pressed together.
Formation of crystals
Squishing bread into a ball
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