If these pieces of rock or metal land on Earth, they are called .........
Meteorites
There is no .......... in space, which means it is silent.
Air
There are 4 smaller, rocky planets :
Mercury, Venus, Earth, Mars
Some astronauts stay in space on the ...........
International Space Station
........ is the furthest away from the Sun
Neptune
Mars is known as the red planet. It has ....... moons and can be covered by dust storms
2
There is no.......... in space, which means it is dark
Sunlight
......... are people who travel into space to learn more about it.
Astronauts
There are........ planets in the Solar System.
8
........... are like giant snowball of frozen gases, rock and dust that move round the Sun.
Comets
Halley’s Comet is a famous comet which appears about every .......... years
75
........... is the smallest planet. It is dry and rocky
Mercury
......... has volcanoes and is the hottest planet.
Venus
Most of the surface of Earth is covered by ........., so it looks very blue from space.
water
Jupiter is the ......... planet. It is a giant ball of gas with 50 moons.
Largest
.......... help us to see things that are a long way away
Telescopes
............ is the smallest planet.
Mercury