10 questions
These factories are releasing toxic gases into the _________________.
surface
core
comet
atmosphere
The ___________ of the earth is very very hot.
The temperature is around 6000°C.
gravity
core
weightless
asteroid
The Moon has many _____________ because it doesn't have an atmosphere to keep itself safe.
solid
crust
satellite
craters
Scientists _______________ in order to learn something or something is true.
float
land on
blast off
do experiments
It is an action that means to turn around and around very quickly.
orbit
spot
spin
mantle
If something _____________ , it moves slowly through the air/ water or stays up in the air/water.
orbits
revolves
rotates
floats
The ______________ of the earth is a layer between the crust and the outer core.
earthlings
meteor
tilted
mantle
Ice needs _________________ to melt.
comet
heat
surface
core
If something is____________, it has a fixed shape, and not a liquid or gas.
axis
revolve
crater
solid
It is the force that causes something to fall to the ground or to be attracted to another planet
gravity
spacewalking
crust
orbit