Science Review

2. Acceleration = a change in ____________
3. The circular path of the planets around the Sun. Caused by the Sun's HUGE gravity
5. Newton's third law: For every action/ force, there is an _________ but opposite reaction
6. Newton's second law: an object's acceleration depends on its _________ and the size of the FORCE acting on it
9. Moving energy
11. The summer ___________ is when the norther hemisphere receives the most direct sunlight of the year. The longest day of the year
13. Light is predictable! Light from the sun strikes the Earth in straight and ___________ lines!
14. Stored energy. The higher it is, the more it has.
17. This force pulls ALL objects with mass TOWARDS each other. It is what holds the moon in orbit around the sun
19. When the moon is waxing (getting bigger) which side is lit up?
21. Which object in the solar system has the MOST gravity?
22. All life is made of ____________
23. Newton's first law: The only way to change the motion of an object is to apply an unbalanced ________
24. All forces come in ___________

1. The lunar cycle takes about a ___________.
4. The moon doesn't actually light up! It only __________ sunlight
6. The more ____________ an object has, the stronger its gravity
7. What is the study of living things called?
8. The ____________ solstice is when the northern hemisphere receives the least amount of sunlight. Longest night of the year
10. The ability to make change. Also, all living things need to be able to produce their own!
12. When the sun is 90 degrees to the equator, it is either ________ or Fall. Also, day and night are the exact same length
15. The two days of the year when day and night are the exact same number of hours
16. The ____________ of the sun, the moon and Earth determines which phase we see
18. This word means the same thing as an object's MASS/ how much "stuff" it is made of
20. The reason earth has seasons is that its axis is __________. This causes one half of the Earth to get more direct sunlight than the other