Eclipses and Earth’s Moon Unit 10 Notes

Earth’s Moon Earth’s gravitation pull keeps the moon in orbit around our planet. The moon’s gravitation pull causes the Earth’s tides (see Unit 5!) The Earth’s moon is slightly younger (4.53 billion years) than the Earth (4.5 billion years). Universe age: 13.7 billion

Lunar Cycle Lunar Cycle: changes in the Moon’s appearance (as viewed from Earth) over 29.5 days. Caused by the movement of the Moon around the Earth & our changing view of the Moon relative to the Sun.

How the moon moves around the Earth impacts how we see it. Phases of the moon How the moon moves around the Earth impacts how we see it.

Phases of the Moon

Phases of The Moon Continued

Eclipses . . . Occur when the shadow of one object blocks the view of another object Two types: Solar Lunar

Solar Eclipses . . . Occur when the view of the sun is blocked by the moon’s shadow Can only occur during a new moon

Lunar Eclipses . . . Occur when the view of the moon is blocked by the Earth’s shadow Can only occur during a full moon