The earth and beyond (6)

The earth and beyond

Multiple Choice

Lumps of rocks that move in orbits around the sun

• asteroids

• milky way

Multiple Choice

Huge ring of icy and rocky objects beyond Neptune.

• Kuiper belt

• asteroid belt

Multiple Choice

Ceres is the largest asteroid in _____ belt

• asteroid belt

• Kuiper belt

Open Ended

The largest dwarf planet in the Kuiper belt is called ______

Multiple Choice

The milky way galaxy is ______ years across

• 10,000 light years

• 1000 light years

• 100,000 light years

revolution in astronomy

• The picture shows this idea, which lasted for over 1500 years.

• It is called a geocentric model

The problem of the planets

• It could not explain the unusual motion of the planets.

• But in about 1510 a Polish astronomer called Copernicus suggested that the Earth and planets all travel round the Sun.

Galileo and the telescope

• Italian astronomer who lived 100 years after Copernicus. He became the first person to use a telescope.

• discovered that Jupiter had four moons orbiting it.

• Many people were unhappy with the ideas They wanted to believe that the Earth was at the centre of the Universe.

Open Ended

Put these items in order, from smallest to biggest:

1) a star

2) a planet

3)an asteroid

4)the Universe

5)a galaxy

6)the solar system

7) The moon

Smallest to biggest

3,7,2,1,6,5,4

asteroid, moon, planet, star,solar system,galaxy,Universe