Space

Question 1

What are meteoroids

Answer 1

They are objects in space that are smaller than an asteroid

Question 2

What are meteors

Answer 2

Meteors are meteorides that enter earth’s atmosphere

Question 3

What are meteorites

Answer 3

The parts of meteorides that do not collide with earth.

Question 4

What are the types of galaxies

Answer 4

1. Spiral
2. Elliptical
3. Irregular

Question 5

The Milky Way is a

Answer 5

Spiral Galaxy

Question 6

What is a galaxy

Answer 6

A colllection of stars with their planets, dust and gas

Question 7

What is the universe

Answer 7

All of space and everything contained within it

Question 8

What are galaxies made of

Answer 8

1. Stellar Dust
2. Gas
3. Stars
4. Solar Systems
5. Planets

Question 9

What is the force that holds all the parts of a galaxy together

Answer 9

Gravitational Force

Question 10

What are asteroids

Answer 10

Asteroids are rocky objects that are smaller than planets and orbit the sun in space

Question 11

What are asteroid belts

Answer 11

The ring that contains most asteroids in the solar system located between the orbits of Mars and Jupiter

Question 12

What are craters

Answer 12

Dents in the surface of a planet or moon caused by the collision of an object with the surface

Question 13

What are nebalue

Answer 13

Nebulae are clouds and dust of gas in space

Question 14

What is stellar nursery

Answer 14

A place in a nebula where stars are formed.

Question 15

What is the easiest nebulae to see in the northern hemisphere

Answer 15

The Orion Nebulae

Question 16

What is the easiest nebulae to see in the southern hempishere

Answer 16

The Carina nebulae

Question 17

Give some evidence that supports the collision theory

Answer 17

1. The Moon is less dense than the Earth
2. Samples of rock from the Moon show that its surface was once molten
3. The Moon has a small iron core, similair to the Earth
4. The composition of the rocks on the Earth and the Moon are the same

Question 18

Give some evidence that contradicts the collision theory

Answer 18

1. The surface of the Earth does not appear to have ever been molten
2. The composition of rocks on the moon would be expected to similair to Theia, but it’s more similair to Earth
3. Venus has no moon

Question 19

What are the two gases most commonly found in nebulae

Answer 19

Hydrogen and helium

Question 20

What evidence shows supports the collision theory

Answer 20

1. Evidence shows that the surface of the Moon was once molten
2. The Moon has a small iron core, like the earth
3. The composition of rocks o the earth and the moon are the same
4. The Moon is less dense than the Earth

Question 21

What evidence contradicts the collision theory

Answer 21

1. Venus has no moon
2. Evidence shows that the surface of the Earth was never molten

Question 22

How is a star formed

Answer 22

A star is formed when the dust and gas collect together in a stellar nursery and become bigger due to the force of gravity. When the force of gravity increases, the pressure increases causing the star to give out heat and light.