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OCR 21st centaury science - P7 (Higher)
A solar eclipse is where the sun's light is blocked by the moon. A total solar
eclipse happens when the earth is in the moons full shadow (umbra). When the
shadow is only partially on the earth (penumbra) you see a partial eclipse.
Solar eclipses are rare because the moon is on a 5 degree tilt relative to the
earth's orbit of the sun.
A lunar eclipse is when the earth blocks the suns light from getting to the
moon, the moon is in the earth's shadow. This is more common because the
earth's shadow is bigger than the moon's shadow. In a lunar eclipse the moon is
still seen but is red because red light from the sun is reflected off the earth's
atmosphere and can reach the sun.