Pure Substances in Science
Explore the properties of pure substances and mixtures with this interactive Grade 5 science worksheet.
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Standards
Topics
Pure Substances and Mixtures
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Date:
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Read each question carefully and answer to the best of your ability. Pay close attention to the difference between pure substances and mixtures.
1. Which of the following is an example of a pure substance?
Saltwater
Air
Gold
Sand and water
2. What is a key characteristic of a pure substance?
It can be easily separated by physical means.
It has a variable composition.
It has a fixed chemical composition.
It is made of different types of atoms.
1. All pure substances are made of only one type of atom.
True
False
1. A pure substance can be an element or a .
2. Water (H2O) is an example of a pure .
3. Unlike mixtures, pure substances have a fixed and properties.
1. Explain in your own words what makes something a 'pure substance'.
2. Give two examples of pure substances you might find in your home.
Match each item on the left with its description on the right.
1. Element
a. Two or more pure substances physically combined.
2. Compound
b. A pure substance made of two or more elements chemically combined.
3. Mixture
c. A pure substance made of only one type of atom.
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