Science Chapter 8--Rocks

What is a rock?

• the second layer of soil
• an opening in the earth
• hard pieces of the earth's surface
• a fossil

Fossils are made by

• Plants dying
• Animals or plants are imprinted on a layer of sedimentary rock
• Breaking down of rocks

How can a metamorphic rock change form into an igneous rock? The rock would....

• melt and then cool
• undergo heat and pressure
• chicken

Rocks are made out of minerals.

• True
• False

1. What will happen if an igneous rock is put under an extreme amount of heat and pressure?

• it will melt into lava
• it will weather and erode
• it will become a metamorphic rock
• it will become a sedimentary 

The remains of living things that died long ago are often found in what type of rock?

• igneous rocks
• sedimentary rock
• metamorphic rock
• all rocks

What property of rock is being observed when looking for what color is left after scratching it on a ceramic plate?

• hardness
• color
• cleavage
• streak

What property of rock is being observed when looking for whether or not it scratches other minerals?

• cleavage
• luster
• hardness
• streak

The earth is made up of mostly ...

• sand
• fossils and soil
• rocks
• grass

Large rocks can be broken down into smaller rocks by wind and water.  These small rocks can break down into very tiny pieces called _______.

• minerals
• pebbles
• sediments
• chalk