1. Which planet is Earth from the Sun?
First
Second
Third
Fourth

2. How far is Earth from the Sun?
63 million miles / 101 million km
93 million miles / 150 million km
123 million miles / 198 million km
153 million miles / 246 million km

3. Earth is approximately how old?
1 billion years old
2 billion years old
3.5 billion years old
4.5 billion years old

4. What is the diameter of Earth?
8,000 miles / 13,000 km
10,000 miles / 16,000 km
12,000 miles / 19,000 km
14,000 miles / 22,500 km

5. Earth's atmosphere is mostly made up of which gas?
Nitrogen
Hydrogen
Helium
Oxygen

6. What percentage of Earth's surface is covered in water?
50%
60%
70%
80%

7. What creates the magnetic field that surrounds the Earth?
The atmosphere
Movement of the oceans
Earth's core
The North and South Poles

8. When did the first simple animals begin to appear on Earth?
1 billion years ago
600 million years ago
300 million years ago
100 million years ago

9. Approximately how long have modern humans existed on Earth?
100 million years
10 million years
200,000 years
10,000 years

10. What is the average distance of the moon from Earth?
154,000 miles / 248,000 km
239,000 miles / 384,000 km
320,000 miles / 515,000 km
462,000 miles / 744,000 km