Cadmium sulfide

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/cadmium-sulfide

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?CdS
2. What is the natural mineral forms?Greenockite and hawleyite
3. What is cadmium sulfide and why is it yellow?Cadmium sulfide is a bright yellow powder that is used as a pigment. Its color comes from the way the compound reflects light, giving it a sunny yellow hue.
4. Where does cadmium sulfide come from in nature?It naturally occurs as the minerals greenockite and hawleyite. It is also found as an impurity inside common zinc sulfide ores like sphalerite and wurtzite.

Inorganic Compound: A chemical compound that does not contain carbon-hydrogen bonds.
Photoconductivity: The property of a material whose electrical conductivity increases when exposed to electromagnetic radiation.
Semiconductor: A solid material that has electrical conductivity between that of a conductor and an insulator, often varying with temperature or light exposure.
Pigment: A substance used to impart color to other materials, typically insoluble in the medium in which it is applied.