1. What you will be doing.
You may use the computers at each lab station. Each slide will only have a total of 5 minutes. I will be giving you the answers to questions. You have not been given the question, only the answer. In your group you are going to predict what the actual question is and write on a sticky note. You will need to put answer on front and group members names on back of sticky note and give to me. I will check it and see who is right. Whoever has the most “right” questions will be given a +5 points on test they want this 9 weeks. At the end of the checking, you will make a foldable (I will hand out the instructions to you).

2. What is the question that goes with this answer?
1st part of answer is: This type of energy that uses heat produced from steam will turn generators that then produces electricity.
2nd part of answer is: a half life is the time required for exactly one half of entities to decay on average
Give a definition representing nuclear energy. Also, give a brief description of what half- life is.

3. What is the question that goes with this answer?
U-235: produces fission chain reaction. 700 million year half life
U-238: Most common isotope of uranium. 4.5 billion year half life
Pu-239: 1/3 of total energy used in a plant. 24,000 year half life
There are 3 types of nuclear fuel. Name each one and give a description of each.

4. What is the question that goes with this answer?
US started producing in 1960’s.
Decline due to: cost overruns, high operating cost, safety issue, disposal of waste, and perception of risky business
Increase: electricity shortages, fossil fuel $ increase, and global warming
When did the US start producing nuclear energy as a source of electricity? What is the reason for it’s decline? Why is there a renewed interest in nuclear energy?

5. What is the question that goes with this answer?
Fusion: extremely high temperatures are used for nuclei of isotopes to fuse together.
Fission: Immense amount of heat will produce steam through this process. Will be used in nuclear power plants.
What is the difference between fusion and fission? Which one do we use in nuclear power plants?

6. What is the question that goes with this answer?
Light-water reactor: will use pressurized water and boiling water
Heavy-water reactor: Form of water in which hydrogen has 1 proton, 1 neutron, and 1 electron
Graphite-moderated reactor: uses light water for cooling, graphite for moderation, and uranium for fuel.
Exotic reactor- fast-breeder produce more fissionable material
List and give a brief description of the 4 types of nuclear reactor types.

7. What is the question that goes with this answer?
3 Mile island: cooling water valve closed previous day
Chernobyl: During a test of plant and disconnected cooling rods. Plant overheated
Describe what led to each of the 2 major accidents at nuclear power plants: 3 mile island and Chernobyl

8. What is the question that goes with this answer?
Advantages
No air pollution
Releases about 1/6 of carbon dioxide as fossil fuels
Disadvantages
Nuclear waste takes millions of years to degrade
Safety & malfunction
Safety
Radioactive contamination
List 2 advantages and 2 disadvantages of environmental impacts of nuclear power. Also, 1 safety issue with nuclear power.

9. Answer to the picture square
Heat is generated by radioactive rods, converted water to steam. Steam drives turbine. Turbine generates electricity.