1) Tides are caused by the pull of this on the earth's oceans
One answer only.

   a. the moon

   b. full moon

   c. rotation

   d. revolution

2) Seasons are caused by the earth's revolution around the sun and by this
One answer only.

   a. the moon

   b. full moon

   c. rotation

   d. the tilt of the earth

3) When the moon appears to be a bright circle, it is in this phase
One answer only.

   a. the moon

   b. full moon

   c. rotation

   d. the tilt of the earth

4) Day and night are caused by this movement of the earth
One answer only.

   a. the moon

   b. full moon

   c. rotation

   d. the tilt of the earth

5) The earth takes one year to make one of these around the sun
One answer only.

   a. the moon

   b. full moon

   c. rotation

   d. revolution