Twenty Questions About Earth

15 Points Per Correct Answer - No time limit  

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

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

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

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

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

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? Triassic Giant land mass Pangaea Cambrian

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

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. 1,495,970,000 93,000,000 149,597,000 9,300,000

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

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

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

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? 67,000 12,000 24,000 109,600

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

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

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? McKinley Mauna Kea Everest K2

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