Rock Study Guide-Grade3

Question 1

A very soft rock used to make powder and chalk

Answer 1

Talc

Question 2

These types of rocks come from magma

Answer 2

Igneous Rocks

Question 3

These rocks come from volcanos and float when you put them in water

Answer 3

Pumice

Question 4

These rocks are made underwater from layers of mud, sand, and sometimes shells that are pressed together.

Answer 4

Sedimentary Rocks

Question 5

Sedimentary rocks that have been changed by time, heat, and pressure

Answer 5

Metamorphic Rocks

Question 6

The breaking down and wearing away of rocks is called

Answer 6

Weathering

Question 7

The movement of weathered material from one place to another is called…

Answer 7

Erosion

Question 8

Liquid rock inside the earth that shoots out of a volcano

Answer 8

Magma

Question 9

A large mass of slow moving ice

Answer 9

Glacier

Question 10

The sudden movement of large sections of rock under the Earth’s surface is called…

Answer 10

Earthquake

Question 11

The loose material that covers much of Earth’s surface

Answer 11

Soil

Question 12

This is made of weathered rocks and hummus and is good for growing crops

Answer 12

Topsoil

Question 13

This has large grains of weathered rock that allows water to pass through easily.

Answer 13

Sandy Soil

Question 14

This has small grains of weathered rock that water can’t get through easily

Answer 14

Clay Soil

Question 15

You can prevent soil erosion in your neighborhood by…

Answer 15

planting grass, trees, flowers and other plants