1. Fill in the blanks.

2. Which has similar chemical properties to Chlorine (Cl)? Sulfur (S), Hydrogen (H), or Bromine (Br)

3. This is what happens when vinegar and baking soda are mixed. What type of reaction is occurring?

4. What item is needed to complete this simple compass?

5. Which two forms of energy are produced when a light bulb lights? D) Heat E) Chemical F) Nuclear A) Sound B) Light C) Motion

6. Which instrument could be use to magnify a crystal? F) Mirror A) Laser B) Barometer C) Telescope D) X-ray E) Microscope

7. What causes the doorbell to make a sound? A) Solar energy B) An electric circuit C) Gravity D) Burning fuel

8. Which electromagnet would most likely be stronger? A) B) C)

9. Which minerals will scratch topaz?

10. How will the bee help the flower reproduce?

11. Which two are most closely related?

12. Which is the primary source of energy in this food chain?

13. Fill in the blanks with the following terms: oxygen and carbon dioxide.

14. Name two animals that compete with each other for food.

15. Put in order from largest to smallest? Suns Planets Moons Asteroids

16. What is this crack in the Earth’s crust called and what does it cause?

17. Fill in the blanks with the following terms: gravity & air pressure.

18. Which process is most responsible for the formation of this arch?

19. What caused the beads of water to form on the outside of this glass?A) CondensationB) EvaporationC) Chemical reactionD) A leak in the glassE) Precipitation

20. How are igneous rocks formed?