5. When you are hungry you crave to eat food. Why?
a. Food is the only choice for us to satisfy our craving.
b. Food contains Chemical Energy to regain our strength.
c. Food has protons and electrons that provide energy for our body.
d. Answers A and B is correct. It mentions the essential use of food.

6. What form of energy changes occur when you light a match sticks ("Pospro")? a. Match stick has solar energy changes to light energy changes to heat energy. b. Match stick chemical energy changes to light energy changes to heat energy. C. Match stick has electrical energy changes to light energy changes to heat energy. d. Match stick has mechanical energy changes to light energy changes to heat energy.

7. Cars, trucks, jeepneys and other transportation vehicles uses gasoline or diesel oil as fuel to generate the movements of the vehicles. What energy is present on the fuel? a. Chemical Energy c. Sound Energy b. Electrical Energy d. Mechanical Energy

8. We love to watch Movies, Netflix, YouTube, and at night watch Television. You dance, exercise, laugh and cry as well while watching. What form of energy makes you feel such emotions?
a. Chemical Energy c. Sound Energy
b. Electrical Energy d. Mechanical Energy​