Martian spherules

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/martian-spherules

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 scientific name?Hematite spherules
2. What is the primary composition?α-Fe2O3 (hematite)
3. What are Martian spherules (blueberries)?Martian spherules, also called "blueberries," are tiny round rocks about 3 to 6 millimeters wide that were found on the surface of Mars by the Opportunity rover.
4. Why do they look blue on Mars?They look bluish because they are made of iron-rich hematite, which gives them a bright, blue‑ish color against the reddish dust of Mars.

Concretions: Hard, compact masses of mineral matter formed within sedimentary rock.
Diagenesis: All the chemical, physical, and biological changes that happen to a sediment after it is deposited.
Astrobiology: The scientific study of the origin, evolution, distribution, and future of life in the universe.