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