Explore the phases of the Moon, what causes eclipses, and how the motion of Earth and the Moon create these phenomena.
The Moon appears to change shape over about a month because we see different amounts of its sunlit side as it orbits Earth.
Does the Moon actually change shape during its phases?
No, the Moon's shape stays the same — what changes is how much of its sunlit side is visible from Earth
What is it called when the Moon appears as a full, complete circle?
Full Moon
A solar eclipse happens when the Moon passes between the Sun and Earth, blocking sunlight. A lunar eclipse happens when Earth passes between the Sun and Moon.
What causes a solar eclipse?
The Moon passing between the Sun and Earth, blocking the Sun's light
What causes a lunar eclipse?
Earth passing between the Sun and Moon, blocking sunlight from reaching the Moon
1. Does the Moon produce its own light?
2. What is it called when no part of the Moon's sunlit side is visible from Earth?
3. What causes a solar eclipse?
4. What causes a lunar eclipse?
5. Why don't eclipses happen every single month?
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