Analyzing Substances: Grade 8 Science Worksheet
This worksheet covers key concepts in analyzing substances, including types of mixtures, separation techniques, and indicators, aligned with Grade 8 Science standards.
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Analyzing Substances: Grade 8 Science Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following is a homogeneous mixture?
Sand and water
Air
Oil and water
A tossed salad
2. Which separation technique would be best for separating iron filings from sand?
Filtration
Distillation
Magnetism
Evaporation
3. A substance that changes color in the presence of an acid or a base is called an .
4. The process of separating a soluble solid from a liquid by heating the solution until the liquid turns into vapor is called .
5. Describe the difference between a pure substance and a mixture, and give an example of each.
6. All solutions are homogeneous mixtures.
True
False
7. Chromatography separates substances based on their boiling points.
True
False
8. Identify the following pieces of laboratory equipment and describe their primary use in separating or analyzing substances.
9. Imagine you have a mixture of salt, sand, and water. Outline the steps you would take to separate each component from the mixture, explaining the technique used for each step.