Grade 9 Science Exam Review - Solutions 2014 | Page 14

3. a) The Earth’s motion that causes the Earth to have approximately a 24 hour day is its Rotation. b) The Earth’s motion that causes the Earth to complete 365.25 days per year is its Revolution. 4. The asteroid belt in our solar system is between Mars and Jupiter. 5. Solar eclipse Earth Moon SUN Does this happen at a full Moon or new moon? New Moon 6. a) High tides occur approximately every 12 hours. b) Draw a picture of how the moon and Earth align during high tide. Page 14 of 17