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Week 13 QOD
| Term | Definition |
|---|---|
| Earth's degree of tilt | 23.5 |
| How does Earth's rotation cause day and night. | Rotation moves one half of Earth's surface toward the Sun which is day, and when it rotates out of the direct light, it's night. |
| Why does Earth have seasons? | Our planet has a tilt of 23.5 degrees. This causes a difference of direct sunlight as Earth revolves. |
| Why is it colder in winter and hotter in summer? | During winter, we are tilted away from direct sunlight so it's cooler. During Summer we are tilted toward direct sunlight. |
| Days in a year. | 365 1/4 |
| What is an equinox | Day beginning fall and spring where the number of daylight hours equals the number of nighttime hours. |
| The direction of the disturbance in a compression wave. | Away from the vibration. |
| How does Earth's tilt affect the amount of sunlight different places on Earth Receive? | Moves parts of Earth into more or less direct sunlight. |
| The direction of the disturbance of a transverse wave. | Up and down (think handshake) |
| Why is it summer in the N. Hemisphere when it is Winter in the S. Hemisphere? | Earth's 23.5 degree tilt. |