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science
the earth sun and moon
Term | Definition |
---|---|
compare | to give an account of the similarities |
relative mass | the mass of one object compared to another |
the composition | of an object is what the object is made of |
gravity | gives us weight |
day and night | are caused by the rotation of earth around its own axis |
rotate | a space object rotates when it spins on its own axis |
revolve | a space object revolves when it spins around another space object |
illuminate | to light up |
waxing moon | when the illuminated area of the moon is increasing |
waning moon | when the illuminated area of the moon is decreasing |
a solar eclipse | occurs when the moon blocks out the light of the sun |
a lunar eclipse | occurs when earth casts a shadow on the surface of the moon |