Twenty Questions About Earth

15 Points Per Correct Answer - No time limit  

1. Earth rotates in about _______ hours. 12 24 6 26

2. Who formulated the geocentric theory? Newton Copernicus Ptolemy Galileo

3. Who formulated the heliocentric theory? Copernicus Galileo Ptolemy Kepler

4. What is the axial tilt of the Earth? 24.5 degrees 23.5 degrees 12.7 degrees 17.5 degrees

5. The Earth diameter is _________ kilometers? 9,655 7,904 12,756 6,542

6. Earth has how many natural satellites visible to the naked eye? None One Two Four

7. What was the giant land mass called that existed some 200 million years ago? Giant land mass Pangaea Cambrian Triassic

8. The Earth has how many continents? Seven One Six Eight

9. Earth is the densest of all of the Sun's planets. True False

10. The Earth's average distance is ______________ kilometers from the Sun. 93,000,000 149,597,000 9,300,000 1,495,970,000

11. The Earth is the ___________ planet from the Sun. fourth third second fifth

12. The Earth is a _________________ planet. gas giant asteroid jovian terrestrial

13. Earth's atmosphere consists mostly of? Oxygen and hydrogen Carbon dioxide and argon Oxygen and nitrogen Hydrogen and helium

14. When the Earth is directly between the Sun and the Moon it is called a _________ eclipse. Solar Lunar Transit Inferior conjunction

15. Earth is moving around the Sun at about __________ miles per hour? 24,000 109,600 12,000 67,000

16. Earth's inner core is solid. True False

17. The largest known impact crater on the Earth is the _________________. Vredefort Ring Clearwater Lakes craters Barringer Crater Caloris basin

18. The highest mountain on the Earth, measured conventionally, is ________________. K2 Everest McKinley Mauna Kea

19. What is the second highest mountain on the Earth, measured conventionally? K2 Everest McKinley Mauna Kea

20. The deepest depression on the Earth is the _______________. Puerto Rico trench Eurasia basin Java trench Marianas trench