Knowledge History of Earth

1. The part of the Earth that is covered by continents and oceans is the _______.

a) core b) mantle c) surface

• Core

• Mantle

• surface

2. The mantle and the crust are two of the Earth’s ____________.

• a. layers

• b. oceans

• c. continents

When water turns into ice it is a ____________.

• a. liquid

• b. solid

• c. gas

4. Volcanoes are very __________ when they erupt.

• a. helpful

• b. dirty

• c. destructive

5. The ____________ of rocks include their colors, textures, shapes and sizes.

a) characteristics b) fossils c) layers

• a. characteristics

• b. fossils

• c. layers

6. Layers of dirt and rock that are pressed together are called ____________.

• a. sediments

• b. ash

• c. lava

7. A scientist who studies rocks and what’s inside the earth is called a _________.

• a. doctor

• b. geologist

• c. farmer

8. There are no more dinosaurs left on Earth. Dinosaurs are ____________.

• a. solid

• b. extinct

• c. preserved

9. Many of the changes in the earth’s surface are caused by heat, ____________ and time.

• a. magma

• b. light

• c. pressure

The ________ is the imaginary line around the middle of the earth that divides it into two equal halves.

• a, North Pole

• b. equator

• c. South Pole