1. Let’s Play Fibber!
Chapter 12 Review Game

2. A back and forth motion that produces sound is called a __________________ .
A. Vibration
B. Sound
C. Sound Wave
D. Echo

3. 2. A wave that transfers sound through matter is a(n) ______________________ . A. Motion B. Radiation C. Sound Wave D. Circuit

4. 3. ____________ are sounds that bounce off of a surface that is a reflected sound. A. Sound Waves B. Echoes C. Motions D. Decibels

5. 4. True or False Sound travels slowest in a gas. True!

6. 5. Sound travels more quickly through a(n) _____________, and travels most quickly through a(n) _______________. A. liquid; solid B. solid; liquid C. gas; solid D. liquid, gas

7. 6. ______________ use echoes to navigate and find prey. A. Orangutans B. Whales C. Dolphins D. Panda Bears

8. 7. The highness or lowness of a sound is its _______________. A
7. The highness or lowness of a sound is its _______________ . A. Pitch B. Amplitude C. Frequency D. Wavelength

9. 8. The distance from the top of one sound wave to the top of the next wave is a(n) ________________ . A. Frequency B. Wavelength C. Pitch D. Amplitude

10. 9. True or False The number of wavelengths that pass a point in one second is called amplitude. False! This refers to the frequency.

11. 10. A tool used to separate white light into different color is a(n) ____________ . A. Prism B. Visible Spectrum C. Retina D. Lens

12. 11. True or False A lens that bends light outward, making objects look smaller, is called a(n) convex lens. False! It is a concave lens.

13. 12. A lens is a tool use to _____________, or bend light. A. Refract B
12. A lens is a tool use to _____________, or bend light. A. Refract B. Opaque C. Convert D. Conduct

14. 13. The lens of the eye focuses images on the ____________
13. The lens of the eye focuses images on the ____________ . The optic nerve sends images to the ___________ . A. pupil; brain B. retina; brain C. iris; brain D. cornea; brain

15. 14. All matter is made up of tiny particles called ____________. A
14. All matter is made up of tiny particles called ____________ . A. charges B. electrons C. atoms D. electrical charges

16. 15. True or False Lightning is a discharge of static electricity during a storm. True!

17. 16. Atoms contain particles with ___________ and ____________ electrical charges. A. positive and neutral B. positive and negative C. negative and neutral D. None of these

18. 17. The path along with electric current flows is called a(n) ____________. A. Static electricity B. Current electricity C. Pole D. Circuit

19. 18. Electric current flows along a single path in a ____________ circuit. A. Series B. Parallel C. None of these

20. 19. True or False A circuit with a gap is a(n) open circuit
19. True or False A circuit with a gap is a(n) open circuit. A circuit can be opened and closed with a switch. True!

21. 20. A parallel circuit connects each load to the power source by different paths called ____________. A. Series B. Switches C. Branches D. Currents

22. 21. True or False If the light in your classroom is on, the circuit is open. False! If the light is on, the circuit is closed so that the electric current can flow through and produce electricity.

23. 22. ______________ materials refers to materials that scatter light in different directions. These are materials that are hard to see clearly through and are considered cloudy. A. Transparent B. Opaque C. Translucent D. None of these

24. 23. ___________ materials block light completely
23. ___________ materials block light completely. Wood and metal are examples. A. Transparent B. Translucent C. Opaque D. None of these

25. 24. A ___________ is an object or a material that can attract metals containing iron, nickel, or cobalt. A. Magnet B. Balloon C. Piece of Metal D. Electromagnet

26. 25. The north and south poles of two magnets will __________ each other. A. Repel B. Attract C. Both attract and Repel D. Nothing will happen

27. 26. True or False The attraction of magnets is strongest when magnets are further apart. False; It is strongest when they are close together.

28. 27. A magnetic field is the area of magnetic _________ around a magnet
27. A magnetic field is the area of magnetic _________ around a magnet. A. Current B. Attraction C. Force D. Metal

29. 28. Generators produce back and forth current called _______________ current. Batteries produce current in one direction called _____________ current. A. alternating; direct B. direct; alternating C. static; electric D. electric; static

30. 29. The colors that make up white light are called the _______________________ . A. Prism B. Visible Spectrum C. Refraction D. Opaque