Nucleosynthesis

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/nucleosynthesis

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What did the Big Bang create first?The Big Bang made the first light elements, mainly hydrogen and helium, plus tiny amounts of deuterium, helium‑3, and lithium‑7.
2. How do stars turn hydrogen into helium?Inside stars, hydrogen atoms fuse together through the proton‑proton chain or the CNO cycle, turning hydrogen into helium and giving off energy that keeps the star stable.

Baryogenesis: The hypothetical process in early cosmic history that produced an asymmetry between matter and antimatter.
Hydrostatic Equilibrium: A state where the outward pressure from fusion balances the inward pull of gravity in a star.
Beta Decay: A type of radioactive decay where a neutron transforms into a proton or vice versa, emitting an electron or positron.