Cobalt

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/cobalt

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 symbol?Co
2. What is the atomic number?27
3. What is cobalt and why does it make things blue?Cobalt is a shiny metal that, when turned into certain compounds, gives a bright blue color used in paints, glass, and ceramics.
4. Why did miners in old times call cobalt ore 'kobold ore'?The miners thought the ores were haunted by mischievous spirits called kobolds because they were blue and produced dangerous fumes.

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