Unit 2 Rocks and Soils

What does the picture tell you about Rock N and Rock O?

• Rock N is bumpy

• Rock N is harder

• Rock N is softer

• Rock N is shiny

Which question would help a scientist sort rocks by texture?

• How big are the rocks?

• Is the rock smooth?

• Where did you find the rock?

• Does the rock have many colors?

Which rock is the hardest?

• Rock 1

• Rock 2

• Rock 3

• Rock 4

How are Rock W and Rock Y different?

• color and shape

• color and hardness

• texture and shape

• texture and hardness

Which question will help a scientist sort rocks based on their hardness ?

• Is the color of the rock dark?

• Will the rock scratch another material?

• How heavy is the rock?

• Is the rock metallic or nonmetallic?

Which question is the student most likely trying to answer?

• What color are the rocks?

• How hard are the rocks?

• What is the texture of the rocks?

• Which rock has a shinier luster?

How can water change rocks over time?

• It can make them sharper

• It can make them heavier

• It can make them larger

• It can make them smoother

Which best describes how this rock changed shape?

• The rock was worn away by gravity

• The rock was worn away by wind

• The rock was worn away by rain

• The rock was worn away by snow

How would you classify a rock based on luster?

• the color

• the hardness

• how shiny it is

• the shape

How did water change the shape of the rocks?

• It made them smoother

• It made them heavier

• It made them harder

• It made them larger