Ariel (moon)

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/ariel-moon

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 Ariel (moon)?October 24, 1851
2. What is the discoverer?William Lassell
3. What is the orbital characteristics?Orbits in Uranus's equatorial plane, leading to extreme seasonal cycles
4. What is Ariel and why is it special?Ariel is one of Uranus's icy moons and the planet's fourth-largest. It spins very fast and has a mix of water ice and rock inside, giving it a layered structure. Its surface shows big cracks and canyons that tell a story of active geology.
5. Why does Ariel have such long seasons?Uranus is tilted on its side, so its moons orbit in a plane almost perpendicular to the Sun's path. For half of Uranus's 84‑year orbit, one of Ariel's poles stays in bright sunlight while the other stays in darkness for decades.

Axial Tilt: The angle between a planet's rotational axis and its orbital axis.
Cryovolcanism: Volcanic activity that erupts volatile substances such as water, ammonia, or methane.
Tectonic Forces: Forces within a planet's crust that cause deformation, such as faulting and folding.
Accretion Disc: A structure formed by diffuse, randomly moving particles lying in a horizontal plane around a primary body.