EARTH2.0

2. The time for one revolution of Earth.
8. The average distance from the earth to the Sun.
11. The study of plate movement.
13. This type of heat transfer is found in the troposphere and the mantle.
14. These longitudinal (compression) waves are the first to arrive. They can travel through solids and liquids.
17. Ignoring the Sun, the brightest star in the sky as seen from Earth.
19. The month in which the northern hemisphere receives the most direct sunlight.
20. The point in a planet’s orbit in which it is closest to the Sun and traveling at the greatest speed.
22. The Sun is directly over this point on Earth during an Equinox.
23. The layers of Earth’s atmosphere that contain the ozone layer.
27. This semi-solid rock layer of Earth undergoes convection and is sometimes visible in rifts and volcanoes.
28. This layer of the Earth’s atmosphere includes both the ionosphere and the exosphere.
29. Instrument that leads you to the magnetic north pole.
30. The force of air determined by temperature and the distance from sea level.
32. Weather occurs in this atmospheric layer along with containing nearly all the atmospheric gasses.
34. The type of planet that includes Jupiter, Saturn, Uranus, and Neptune.
35. The estimated time between Earth’s magnetic field reversals.

1. The approximate age of Earth.
3. The average distance of plate movement in a year.
4. The theory that rapid rotation and a conduction liquid metal core creates a magnetic field.
5. The layer of Earth’s atmosphere immediately before space.
6. The region around Earth influenced by Earth’s magnetic field.
7. The type of planet that includes Mercury, Venus, earth, and Mars.
9. This filters the Sun’s harmful ultraviolet light, stopping it from reaching Earth’s surface.
10. The point in a planet’s orbit farthest from the Sun.
12. The time for one rotation of Earth.
15. The most abundant gas in Earth’s atmosphere.
16. The atmosphere of Earth is divided into layers based on this.
18. The name of the only star in our solar system.
21. Our current North Star. The regions of the magnetosphere surrounding Earth that capture high energy particles.
24. Once considered a planet, this object is now a dwarf planet out in the Kuiper belt.
25. The primary greenhouse gasses.
26. Subatomic particles found in the outer Van Allen Belt.
31. The only planet with liquid water on the surface.
33. The ‘supercontinent’ land mass that was present 200 million years ago.