Compounds and Mixtures Worksheet
Explore the fundamental concepts of compounds and mixtures, including their definitions, properties, and classifications, for Grade 7 Science.
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Topics
Compounds and Mixtures
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Read each question carefully and answer to the best of your ability. Use complete sentences where appropriate.
1. Which of the following is a pure substance made of two or more elements chemically combined in a fixed ratio?
Mixture
Element
Compound
Solution
2. Which type of mixture has components that are evenly distributed and look uniform throughout?
Heterogeneous mixture
Homogeneous mixture
Compound
Element
3. A mixture of sand and water is an example of a mixture.
4. When two or more substances are physically combined but not chemically bonded, they form a .
5. All compounds are made up of atoms of different elements.
True
False
6. Air is a homogeneous mixture.
True
False
7. Explain the difference between an element and a compound.
Match each item on the left with the correct description on the right.
8. Salt (NaCl)
a. Heterogeneous mixture
9. Soil
b. Compound
10. Air
c. Homogeneous mixture