8th Grade Science Quarterly Review Sheet
Marking Period 1
Ms. Bechold is in N-5 every Thursday for extra help.
1. What three mediums does sound need to travel? ______
2. Since sound needs a medium to travel where is there no sound? ______
3. Moving energy, like Electricity can be thought of as an example of Potential or Kinetic energy?
______
4. What happens to the nucleus of an atom during Fission?
______
5. What happens to the nucleus of an atom during Fusion?
______
6. The frequency of electromagnetic (EM) radiation with the most energy/shortest wavelength is:
______
7. The frequency of electromagnetic (EM) radiation with the least energy/biggest wavelength is:
______
8. How do Microwaves increase the temperature of food? ______
9. Temperature measures the kinetic energy of an object. So, if the temperature drops the kinetic energy ______and if the temperature increases the kinetic energy ______.
10. Define opaque: ______11. If x-ray radiation works by passing through your body to expose the film below what parts of your body are opaque to x-rays? ______
12. What are all the wavelengths (colors) of visible light? ______
13. What two particles are in the nucleus of an atom? ______& ______
14. Define energy: ______
15. Fission and Fusion are both examples of what kind of energy? ______
16. Name all the forms of energy on the electromagnetic spectrum?
______
17. Photosynthesis and food hold stored ______energy.
18. Write out a good example of kinetic energy and potential energy switching back and forth. ______
19. Light affected by a prism. What type or “color” of light goes into the prism? Light can pass right through the prism so what kind of material does that make the prism (transparent/translucent or opaque)? What is the end result of light when it comes out of the prism? Answer all questions below:
______
20. Explain what refraction does to objects. Give some examples:
______21. What is the Law of Conservation of Energy? ______
22. Explain the types of energy that transform when a flashlight with batteries is turned on. (Hint: What type of energy is in the battery àWhat type of energy turns on the flashlightàWhat type of energy allows us to see)
______
23. Why do colors appear different to us? Why do we see a red, orange, yellow green, blue, and violet? ______
24. When EM radiation is absorbed, it changes into ______.
25. Define atom:
______
26. Carbon has an atomic number of 6. This means carbon has how many protons? ______
27. Define element:
______
28. In order to see you need light. Explain how you can still see a little bit outside at night. ______
29. Define the convection cycle:
______
30. Heat itself cannot travel through space, yet the sun still warms the Earth. Thermal energy is converted into what EM wave to travel through space? ______
31. What is the element (“fuel”) that power plants, like The Oyster Creek use to generate electricity? ______
You will also have an open ended question very similar to the one below:
Why does the apple look red? (I know the picture’s black and white; pretend it’s red!). In your answer make sure to discuss: absorb, reflect, wavelength/frequency, and white light.
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