1
Many scientists believe that an .................. impact caused the extinction of the dinosaurs around 65 million years ago.
2
Jupiter\'s 4 biggest moons are named Europa, ............................., Callisto and Io
3
Because of lower ..............................., a person who weighs 200 pounds on earth would only weigh 76 pounds on the surface of Mars.
4
The first man made object sent into space was in 1957 when the Russian satellite named .................. was launched.
5
The Solar System formed around 4.6 ............... years ago.
6
The only planet that rotates on its side like a barrel is ..................................
7
..................... isn\'t the only ringed planet, other gas giants such as Jupiter, Uranus and Neptune also have rings, they are just less obvious.
8
It is because of the Sun & Moons gravity that we have high & low...........................
9
.................. is the hottest planet in our solar system with a surface temperature of over 450 degrees celcius.
10
Halley’s ................ was last seen in the inner Solar System in 1986, it will be visible again from Earth sometime in 2061 (get your camera ready).
11
In 2006, astronomers changed the definition of a planet. This means that ............. is now referred to as a dwarf planet.
12
Footprints and tyre tracks left behind by astronauts on the moon will stay there forever as there is no ........... to blow them away.
13
The .......................... appears to have more craters and scars than Earth because it has a lot less natural activity going on, the Earth is constantly reforming its surface through earthquakes, erosion, rain, wind and plants growing on the surface, while the moon has very little weather to alter its appearance.
14
The ......... is over 300000 times larger than earth
