Earth

Question 1

What percent of our air is carbon dioxide?

Answer 1

1 percent

Question 2

CO₂ is the formula for…

Answer 2

carbon dioxide

Question 3

CO₂ is made up of…

Answer 3

1 carbon and 2 oxygen atoms

Question 4

At room temperature, carbon dioxide is a…

Answer 4

Gas

Question 5

Formula for methane

Answer 5

CH4

Question 6

What are some uses of methane

Answer 6

Cooking and heating

Question 7

Define Weathering

Answer 7

Weathering is the breaking down or wearing away of rocks where they are

Question 8

What is biological weathering?

Answer 8

is caused by animals and plants. For example, rabbits and other burrowing animals can burrow into a crack in a rock, making it bigger and splitting the rock.

Question 9

Define chemical weathering.

Answer 9

The weathering of rocks by chemicals is called chemical weathering.

Question 10

Define Physical weathering

Answer 10

Physical weathering is caused by physical processes such as changes in temperature, freezing and thawing, and the effects of wind, rain and waves.

Question 11

What make rocks Porous?

Answer 11

If they have rounded grains, it becomes easier for the water to sink in between the grains

Question 12

What are igneous rocks?

Answer 12

Igneous rocks are formed from molten rock that has cooled and solidified.

Question 13

What is magma?

Answer 13

Liquid rock

Question 14

magma that cools slowly will form an igneous rock with crystals of ____ size

Answer 14

large

Question 15

magma that cools quickly will form an igneous rock with ____ crystals

Answer 15

small

Question 16

What are Extrusive rocks

Answer 16

Extrusive igneous rocks form from magma that erupted onto the surface as lava

Question 17

What are intrusive rocks

Answer 17

intrusive igneous rocks form from magma that cooled slowly, deep underground.

Question 18

Why do igneous rocks not contain any fossils?

Answer 18

This is because any fossils in the original rock will have melted when the rock melted to form magma.

Question 19

What are sedimentary rocks

Answer 19

Sedimentary rocks are formed from the broken remains of other rocks that become joined together.

Question 20

What makes sedimentary rock form in layers?

Answer 20

When the river reaches a lake or the sea, its load of transported rocks settles to the bottom. We say that the rocks are deposited. The deposited rocks build up in layers, called sediments

Question 21

Examples of sedimentary rock are…

Answer 21

chalk
limestone
shale
sandstone

Question 22

What are metamorphic rocks

Answer 22

Metamorphic rocks are formed from other rocks that are changed because of heat or pressure

Question 23

What does the presence of tiny crystals in a piece of igneous rock tell you about it?

Answer 23

The molten rock cooled very quickly

Question 24

What is magma?

Answer 24

Molten rock

Question 25

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Answer 25

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Question 26

Where are the oldest layers of rock usually found in a cliff made from sedimentary rock?

Answer 26

At the bottom

Question 27

Which type of rock never contains fossils?

Answer 27

Igneous

Question 28

How are sedimentary rocks arranged

Answer 28

In layers

Question 29

Which metamorphic rock is formed from limestone?

Answer 29

Marble is the metamorphic rock formed from limestone

Question 30

What rock is slate formed from?

Answer 30

Mudstone