Sun

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/sun

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. How heavy is the Sun?Approximately 1.989 × 10^30 kilograms (330,000 times Earth's mass)
2. What is the stellar classification?G2V (Yellow Dwarf)
3. What is the formation epoch?Approximately 4.6 billion years ago
4. What is the Sun and why does it keep us warm?The Sun is a giant star that shines light and heat, keeping Earth warm and bright.
5. How does the Sun make energy?In the Sun's core, hydrogen atoms fuse into helium, turning a tiny bit of mass into energy that travels out as light and heat.

Hydrostatic Equilibrium: The balance between the inward pull of gravity and the outward pressure from nuclear fusion in a star.
Proton-Proton Chain: The primary nuclear fusion process by which stars like the Sun convert hydrogen into helium.
Stellar Evolution: The sequence of changes a star undergoes throughout its lifetime, from formation to its eventual end.
Heliopause: The boundary where the Sun's solar wind is stopped by the interstellar medium, marking the edge of the heliosphere.