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The moon’s orbit around the earth is tilted about five degrees with respect to the earth’s orbit around the sun, and that is why we don’t experience an eclipse every month. Lunar eclipses can only occur during a full moon, while solar eclipses can only happen during a new moon phase.
In this activity, you will experience how eclipses depend on a shadow formed from either the earth or the moon blocking the sunlight. It is the shadow that makes the eclipse.