Iron oxide

High school (ages 12+)
Science & Technology

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/iron-oxide

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 chemical formula examples?Hematite (Fe₂O₃), Magnetite (Fe₃O₄), Goethite (FeO(OH))
2. What is the key industrial roles?Primary iron ore source, durable pigments, catalysts, thermite component
3. Why do people use iron oxide as paint?Iron oxide pigments are very stable and don’t fade, so they keep colors bright for thousands of years. They are also cheap, durable, and safe for use in paints and coatings.
4. How does iron oxide help make steel?Iron oxides are the main source of iron ore, which is melted and refined to produce the iron used in steel. Steel is essential for building roads, bridges, and many everyday objects.

Non-stoichiometric: Chemical compounds where the elements are not in a simple whole-number ratio.
Lightfastness: The resistance of a pigment or dye to fading when exposed to light.
Catalyst: A substance that increases the rate of a chemical reaction without itself undergoing permanent change.