G4
Lesson Summary
Vocabulary Link
- nuclear fusion
- red giant
- Tectonic plates will continue to move resulting in constantly changing arrangements of the Earth’s landmasses.
- A new supercontinent called Pangaea Ultima is expected to form in approximately 250 million years.
- Tectonic plate activity would cease if the Earth’s primary internal heat source, radioactive decay of elements like U238 and Th232, were to be used up.
- The sun produces energy by the process of nuclear fusion.
- The Earth will likely die about 5 billion years in the future as a result of the sun exhausting its hydrogen fuel and becoming a red giant.