| Question | Answer | % Correct |
|---|---|---|
| Earth is the third planet from the Sun. | True | 100%
|
| The Earth's surface is mostly covered by land. | False | 91%
|
| Earth has only one natural satellite, the Moon. | True | 91%
|
| Earth is the only planet known to support life. | True | 91%
|
| Earth's atmosphere is composed mostly of oxygen. | False | 82%
|
| The Earth's axis is tilted by about 23.5 degrees. | True | 82%
|
| Earth's highest mountain (above sea level) is Mount Everest. | True | 82%
|
| The Pacific Ocean is the smallest ocean on Earth. | False | 73%
|
| Earth has experienced more than one mass extinction event. | True | 64%
|
| Earth orbits the Sun in exactly 365 days. | False | 55%
|
| Earth's magnetic field is generated by its liquid outer core. | True | 55%
|
| The Earth's atmosphere extends up to about 1,000 km from the surface. | False | 45%
|
| The Earth's atmosphere is mainly composed of carbon dioxide. | False | 45%
|
| Earth is the densest planet in our solar system. | True | 45%
|
| The Earth's core is solid iron. | True | 27%
|