Compounds and Mixtures

Explore the fundamental differences between compounds and mixtures, including their properties, formation, and methods of separation, for Grade 8 science students.

Grade 8 Science ChemistryCompounds and Mixtures

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Includes

Multiple ChoiceTrue / FalseFill in the BlanksShort AnswerMatching

Standards

NGSS.MS-PS1-1NGSS.MS-PS1-4

Topics

sciencechemistrycompoundsmixturesgrade 8

7 sections · Free to use · Printable

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Compounds and Mixtures Worksheet

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Read each question carefully and answer to the best of your ability. This worksheet covers topics related to compounds and mixtures.

1. Which of the following is a pure substance?

Saltwater

Air

Gold

Sand and water

2. A substance formed when two or more elements are chemically combined is called a:

Mixture

Compound

Element

Solution

1. Mixtures can be separated by physical means.

True

False

2. Water (H2O) is an example of a mixture.

True

False

1. A is a substance made up of two or more elements chemically combined in a fixed ratio.

2. When components of a mixture are evenly distributed, it is called a mixture.

1. Explain the difference between a homogeneous mixture and a heterogeneous mixture, and provide an example of each.

2. Describe one physical method that can be used to separate a mixture, and give an example of a mixture it could separate.

Match each term with its correct definition.

1. Compound

a. Two or more substances physically combined

2. Mixture

b. A pure substance made of one type of atom

3. Element

c. Two or more elements chemically combined