Desert planet

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/desert-planet

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 is the dominant geological processes?Aeolian erosion, thermal expansion/contraction, impact cratering; limited hydrological activity
2. What is the atmospheric composition?Typically tenuous, extremely dry, with low atmospheric pressure and high dust content
3. Why is water so rare on desert planets?The planet is too close to its star or has lost its atmosphere, so any water evaporates or is blown away by the star’s light. The thin air and high heat keep water from staying on the surface.
4. How do deserts on other planets look like?They have huge dunes, rocky deserts, and sometimes big craters. Wind sculpts the sand into waves and can even create planet‑wide dust storms that cover the sky.

Aeolian Processes: Geological processes driven by wind, such as erosion, transportation, and deposition of sediment.
Photodissociation: The breakdown of molecules by light, particularly ultraviolet radiation.
Biosignatures: Substances, patterns, or phenomena that provide evidence of past or present life.
Transit Photometry: A method of detecting exoplanets by measuring the dimming of a star as a planet passes in front of it.