Key:
Short Answer:
1.Space is everything beyond space. Space contains galaxies, a solar system, and planets.
2.There are 8 planets.
3.We are living in the Milky Way Galaxy.
4.The universe is 46 billion years old.
5.The Sun is a star.
6.Evolution is the process in which different kinds of organisms have from earlier forms in history.
Fill in the blanks:
1.Big bang
2.Mars and earth
3.Jupiter
4.Mars
Matching:
1.D
2.C
3.E
4.A
5.B
True and False:
1.True
2.False
3.True