5th Grade Science Review

2. When water particles get heavy and fall from the sky as rain, snow, sleet or hail.
3. Water particles warm and turn into water vapor through a process called ________.
7. We call organisms that make their own food from photosynthesis ___________.
9. The _________ orbits the earth every 28 days.
11. There are three states of _________.
14. It takes 24 hours for the earth to make one ______.
15. All matter is made up of these tiny particles called ______.
16. When it rains and water travels across roads and yards and into the gutters.
18. If you count Pluto, there are ______ planets in our solar system.

1. ____________ is the biggest planet in our solar system.
4. The other name for earth's orbit is a _____.
5. When water vapor cools and turns back into a liquid.
6. It takes this long for the earth to travel its path around the sun.
8. The _______ is at the center of our solar system.
10. We have ________ because earth is tilted on its axis.
12. The earth is tilted 23.5 degrees on its ______.
13. Organisms that eat only meat are called _____.
17. If you warm up the particles in a solid piece of matter it will melt and turn into a ______.