Across
- 2. The _______ of the Moon refers to the fraction of the Moon's illuminated surface that faces Earth
- 4. The force of gravity between two objects decreases as the _______ between them increases
- 6. The length of daylight varies throughout the year due to Earth's _______.
- 7. During a lunar eclipse, the _______ passes between the Sun and the Moon.
- 9. The Moon's gravity causes the Earth's oceans to experience
Down
- 1. The force that keeps Earth in orbit around the Sun is
- 2. The point in Earth's orbit where it is closest to the Sun is called
- 3. The phases of the Moon are caused by the changing _______ of sunlight on the Moon's surface
- 5. The point in Earth's orbit where it is farthest from the Sun is called _______.
- 6. A _______ eclipse occurs when the Moon passes through the Earth's umbra, causing a total darkening of the Moon
- 8. The _______ is the imaginary line that runs from the North Pole to the South Pole and through the center of Earth
