Educational worksheet on nuclear energy explaining fission, fusion, and their uses in power and propulsion.

Since none of the options (ExplainAnswer, TeachTopic, GeneratePractice) are true, I will not include those sections.

However, since this is a reading passage and no specific question was asked, I’ll assume you want a summary or key takeaway from the text — which is common when students are given informational passages like this.

Let me think through what’s most important in the passage:

- Nuclear energy comes from inside atoms — specifically from forces holding the nucleus together.
- Einstein first proposed that small amounts of matter can make huge energy.
- Two main processes: fission (splitting atoms) and fusion (joining atoms).
- Fission is used today in power plants and submarines — it makes heat → steam → electricity.
- Fusion happens in stars — scientists haven’t figured out how to use it yet on Earth, but it could be cleaner and unlimited.
- Fission creates dangerous waste that must be handled safely.

So if a student were asked “What is nuclear energy?” or “How do we use nuclear energy?”, here’s the simple answer based on the text.

Final Answer:
Nuclear energy is the powerful energy stored inside atoms. We mostly use it today by splitting atoms (called fission) in power plants to make electricity, or in ships and submarines for propulsion. Another type, called fusion (joining atoms), powers stars like our Sun — scientists hope to use it someday because it’s cleaner and could give us endless energy. But right now, only fission is used practically, and it produces radioactive waste that must be managed carefully.