Galilean moons

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/galilean-moons

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. Who discovered Galilean moons?January 7, 1610
2. What is the discoverer?Galileo Galilei
3. What is the primary orbiting body?Jupiter
4. Why is Io so hot?Jupiter’s gravity and the tug from Europa and Ganymede heat Io’s interior, making its volcanoes and lava flows very active.
5. Does Europa have water?Yes, Europa is covered by a thick ice shell that hides a global ocean of salty liquid water, which could support life.

Tidal Heating: Internal heat generated within a celestial body due to gravitational forces from a larger body.
Magnetosphere: The region around a planet or moon where its magnetic field influences charged particles.
Astrobiology: The scientific study of the origin, evolution, distribution, and future of life in the universe.
Geocentric Model: An astronomical model with the Earth at the center of the universe, around which all celestial bodies revolve.