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Students will work in small groups to arrange moon phase cards into the correct sequence.
For each group:
Even though it has no light of its own, the moon is the brightest object in the evening sky because it reflects sunlight. As the moon revolves around Earth, the shape of the moon appears to change. This is caused because of the relative position of Earth, sun, and moon. The moon appears to change because different amounts of light illuminate the surface of the moon that faces us. This light we see changes from day to day as the moon orbits Earth, letting us see more or less of the moon’s surface.
Half of the moon’s surface is always in the sunlight. We see the moon going through phases because of the varying positions of the sunlit side of the moon as it revolves around Earth. This sunlit face we see can range from a thin crescent to a full face. When the side of the moon facing us has no sunlight on it, we cannot see it at all. We call this a new moon. The lunar month, which lasts 29.5 days, is measured from one new moon to the next.
1. Use Science Process and Thinking Skills
2. Manifest Scientific Attitudes and Interests
4. Communicate Effectively Using Science Language and Reasoning
Invitation to Learn
Students work in cooperative groups in this activity.
Each person is to complete his/her own sheet without talking.
Have students pair up. This time they may point to the numbers and work together, but they cannot talk.
Have students work with the same partners. This time they can talk.
Hold pair and table discussions:
Moon Phase Extension Cards
Note: Crescent/gibbous and solar/lunar may be found in science dictionaries or on a writing program thesaurus.