Summary:
- When a massive star has no more elements left to fuse, it explodes as a supernova.
- The elements heavier than iron form in supernova explosions, including gold, silver, and uranium.
- A supernova explosion spreads the elements into nearby space.
- This is the source of most of our elements.
- All chemical elements except hydrogen, helium, and lithium were created in stars.
- These chemical elements are found in our solar system and on Earth because of supernovae.
- Use the resource below to answer the questions that follow.