Sun-Earth System

3. The season between winter and summer when daylight increases and temperatures gradually warm.
6. The season when a hemisphere is tilted away from the Sun, receiving less direct sunlight and shorter days.
10. The curved path Earth follows as it revolves around the Sun.
11. The slant of Earth’s axis at 23.5 degrees, which affects the seasons.
12. The spinning of Earth on its axis, which causes day and night.
14. The season when a hemisphere is tilted toward the Sun, receiving more direct sunlight and longer days.
16. An imaginary line that Earth spins around from the North Pole to the South Pole.
17. The movement of Earth around the Sun, which impacts the seasons.

1. Sunlight that hits Earth straight on, near a 90 degree angle, making it warmer.
2. Sunlight that hits Earth at a low angle, spreading out and providing less heat.
4. Summer, Fall/Autumn, Winter, Spring.
5. The period of time when a location on Earth is facing away from the Sun and is in darkness.
7. A day of the year when day and night are about the same length all over the world.
8. A day of the year with the longest or shortest amount of daylight, caused by Earth’s tilt.
9. The type of energy the Sun emits in the form of heat and light.
13. The season between summer and winter when daylight decreases and temperatures gradually cool.
15. The period of time when a location on Earth is facing the Sun and receives light.