Welcome to your Class 5 Quiz 8
One light year is the distance which light travels in ______.
What is the name of earth's moon?
The sun's surface is called_________.
What are the dark, small patches in the sun's surface called?
Which planet is also called the ' blue marble'?
Which is the largest asteroid?
Which is the smallest Planet?
Reflector telescopes use_________ to collect light.
Which of these was USA's first space station?