SCIENCE PRACTICE 2.2

1- Name of the scientists who study the earth´s structure.

• Geologists

• Antropologist

• Biologists

2- How many layers the Earth has?

• 3

• 4

• 5

This layer is the outer region of the planet made of soil.

• mantel

• crust

• inner core

• outer core

-This layer is under the crust, is made out of molten rocks.

• mantel

• crust

• inner core

• outer core

This two are in the center of the earth.

• mantel

• crust

• inner core

• outer core

The the rocks are melted are called..

• Lava

• Magma

• Mantel

When magma is erupted to the surface is called...

• Lava

• Magma

• Mantel

Is loose earth containing decaying plants and animals.

• Soil

• Rocks

• Water

New soil is formed by a process called...

• Weathering

• Watering

• Airing

When rocks are changed by acid is called...

• Chemical weathering

• Physical weathering