1A: Jupiter's Moons (2025)

Jupiter's Satellites

Jodie Polan, MS (March 2024)

TEKS

(11B) explore and communicate the origins and significance of planets, planetary rings, satellites, asteroids, comets, Oort cloud, and Kuiper belt objects
(11C) compare the planets in terms of orbit, size, composition, rotation, atmosphere, natural satellites, magnetic fields, and geological activity
(11D) compare the factors essential to life on Earth such as temperature, water, gases, and gravitational and magnetic fields to conditions on other planets and their satellites

​Learning Objective

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Happy teaching!

​MRS

Without looking up on the internet, describe what types, sizes and how many natural satellites you think Jupiter has.

​MRS

After watching the video, how has your thoughts about Jupiter's moons changed?

Jupiter

• 96 confirmed moons (as of March 2024)

• rotate clockwise (opposite of planet rotation)

• Biggest moons

  • Io (highest density of any moon, strongest surface gravity of any moon, over 400 active volcanoes & lowest amount of water)

  • Europa (possible liquid water underneath frozen crust)

  • Ganymede (largest moon in the solar system; larger than Mercury; high radiation maybe due to tidal heating)

  • Callisto (small craters indicate considered best possible location amongst moons of Jupiter for surface habitation)

https://science.nasa.gov/jupiter/

https://ssd.jpl.nasa.gov/sats/discovery.html

​MRS

Why are the larger moons of Jupiter called Galilean moons? Who was Galileo Galilei?

Theories:

• Gravitational tugs from Jupiter's moons and the planet itself stretch and squish the moons enough to warm them

• Elliptical Orbital and rotational energy results in heat in the crust of the moon.

• Consequences of this heating are a subsurface ocean, geysers, and tectonically deformed terrains.

​Tidal Heating

​MRS

Summarize tidal heating.

5 minute - What did you learn about Io?

​MRS: Io

5 minute - What did you learn about Europa?

​MRS: Europa

5 minute - What did you learn about Ganymede?

​MRS: Ganymede

5 minute - What did you learn about Callisto?

​MRS: Callisto

Multiple Choice

Which of Jupiter's moons could possibly support life because of the large amount of water located below a layer of ice?

• Io
• Callisto
• Ganymede
• Europa

Multiple Choice

Jupiter's second largest moon is ____.

• Callisto
• Europa

Multiple Choice

Which two Jupiter moons have a magnetosphere?

• Ganymede and Io
• Ganymede and Callisto

Multiple Choice

Which moon has water ice?

• Io
• Europa

Multiple Choice

Which moon is effected by tidal forces that cause volcanoes?

• Io
• Europa

Multiple Choice

Which moon might have all materials needed to spawn life?

• Europa
• Callisto

Multiple Choice

Jupiter's tidal forces are ______ stronger than Earth's tidal forces.

• 100 times
• identical