Planet Earth Emma

Question 1

How does the earth move?

Answer 1

The earth spins on its own axis and orbits the sun. These movements make day and night possible as well as the 4 seasons

Question 2

What is the order of the planets?

Answer 2

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto

Question 3

What is the earth’s orbit?

Answer 3

The earth travels in an orbit around the sun. The orbit is the pathway that the earth moves in

Question 4

How long does the earth take to orbit the sun?

Answer 4

365 1/4 days (one year)

Question 5

How is a year divided

Answer 5

Into 12 months, which can be divided into 4 seasons

Question 6

What causes the 4 seasons?

Answer 6

The path the earth takes around the sun is in an oval shape, so sometimes the Earth is further away from the sun than at other times.

Question 7

How does the earth spin?

Answer 7

The Earth spins on its own axis, which is an imaginary line. It’s takes about 24 hours to make one full rotation .

Question 8

How do we get night and day?

Answer 8

As the Earth spins on its own axis, when the place that you are on faces the sun, that is day. When the place you are on faces away from the sun, that is night.
The sun does not actually rise and set, the sun doesn’t move at all.
The earth’s rotating causes day and night.

Question 9

What is the surface of the Earth called?

Answer 9

The crust

Question 10

What is the Earths crust made up of?

Answer 10

It consists of rocks and soil. The earth is mostly covered with water, and the crust sits below the water

Question 11

What are the 4 main elements that support life on earth?

Answer 11

Soil
Water
Air
Sunlight

Question 12

How does soil support life on earth?

Answer 12

Most plants grow in soil
Soil contains minerals that plants need to grow. If there was no soil there would be no plants. This would mean that food chains could not exist and all animals would die

Question 13

How does air support life ?

Answer 13

Air contains oxygen. All living things need oxygen to survive

Question 14

Explain thoroughly how soil supports life on earth

Answer 14

• Plants anchor their roots in soil and absorb water
• soil has minerals and nutrients in it that plants need in order to grow and reproduce. When they reproduce they form seeds
• each plant and animal has its own habitat and they all have an important role to play in nature. If you take away any link in the food chain, the chain is upset or destroyed.

Question 15

What life can be found in soil

Answer 15

Earthworms
Slugs
Snails
Moles

Question 16

How do earthworms help the soil?

Answer 16

Earthworms eat decaying plant matter and they help to loosen the soil particles. This means more air in the soil.

Question 17

How else do the creatures who live in soil contribute to nature?

Answer 17

They are a source of food for other animals

Question 18

How is water important to the earth?

Answer 18

Earth is different to the other planets because it has water on it.
Plants use water, energy from the sun and other elements to make their own food.
If there was no food there would be no living things.
Water is a solvent which means that minerals and substances can dissolve in it and plants can take absorb it easily.

Question 19

How is sunlight important to the earth?

Answer 19

Sunlight is the earth’s main source of energy.
Plants use the sun’s energy to make food and pass this energy on to animals through food chains.
Living things need energy to grow and reproduce

Question 20

Why did traditional farmers plant different crops every year?

Answer 20

They did not have fertilisers. They knew that if they planted the same crops in the same place year after year the minerals in the soil would be used up.

Question 21

What does the human body get from sunlight?

Answer 21

It uses sunlight to make vitamin D, which is important for building strong bones

Question 22

What is land on Earth made up of?

Answer 22

Topsoil
Subsoil
Rocks

Question 23

What is topsoil?

Answer 23

Topsoil is the top layer of soil in the Earth’s crust. This is where plants grow

Question 24

Explain what topsoil is made of

Answer 24

It is made up of small sand grains, plant and animal matter, air and water

Question 25

How is topsoil formed?

Answer 25

It forms when rocks break down into small grains. These grains of sand mix with air and water, and plants and animals make it their habitat. Topsoil is usually darker in colour than subsoil.

Question 26

Where is subsoil found?

Answer 26

Beneath topsoil

Question 27

What is subsoil made up of

Answer 27

There are pieces of bigger rock with some small parts of topsoil. It is lighter in colour than topsoil. Roots of some trees grow into subsoil and anchor the tree. There is not much life in subsoil