What is this?
This is a space station
This is a ____________.
spacewalk
.............
muscles
What is this?
It's a satellite
What is this?
It's a star
________ around the Earth.
orbit
What is this?
It's a rocket
What is this?
It's a telescope
These are _________.
tools
What is this?
It's the Moon
What is this?
It's the Sun
What is this?
It's planet Earth
What is this?
It's a comet
What is this?
This is the solar system
What is this?
This is a spacesuit
What is this?
It's a planet
This is a ___________.
sunrise
This is a __________.
sunset