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Compounds and Mixtures

Explore the basic concepts of compounds and mixtures with this engaging Grade 3 science worksheet, featuring identification, classification, and real-world examples.

Grade 3 Science ChemistryCompounds and Mixtures
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Multiple ChoiceTrue / FalseFill in the BlanksShort AnswerWord Bank

Standards

5-PS1-15-PS1-2

Topics

sciencechemistrycompoundsmixturesgrade 3
7 sections · Free to use · Printable
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Compounds and Mixtures

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Read each question carefully and answer to the best of your ability. This worksheet will help you understand the difference between compounds and mixtures.

1. Which of these is an example of a mixture?

a

Water (H₂O)

b

Saltwater

c

Sugar (C₁₂H₂₂O₁₁)

d

Carbon Dioxide (CO₂)

2. What happens when you mix sand and water?

a

They form a compound

b

They form a mixture

c

They disappear

d

They change color

1. A compound is made of two or more substances chemically combined.

T

True

F

False

2. You can easily separate the parts of a compound.

T

True

F

False

1. When two or more substances are simply mixed together but not chemically joined, it is called a  .

2. A   is formed when different elements are chemically combined.

1. Give one example of a mixture you can find in your kitchen.

2. How is a compound different from a mixture?

Use the words below to complete the sentences.

mixture
compound
elements
separated

1. Air is a   of different gases.

2. Water is a   made of hydrogen and oxygen.

3. The parts of a mixture can usually be easily  .

4. Compounds are formed when two or more   combine chemically.