Grade 7 - Unit 8 - Practice Quiz 1
Discover Mixtures and Compounds: An Engaging Quiz for Grade 7
Welcome to the Grade 7 Unit 8 Practice Quiz! This quiz is designed to test your understanding of mixtures and compounds in a fun and interactive way. Whether you're a student looking to review key concepts or a teacher seeking a quick assessment tool, this quiz can help!
In this quiz, you will:
- Answer multiple-choice questions about mixtures and compounds.
- Learn about the properties of air, carbon dioxide, and more.
- Gain insights into separation processes and heterogeneous vs. homogeneous mixtures.
The main difference between a mixture and a compound is?
The substances in a mixture are always elements.
Mixtures are bonded together, while compounds are not.
Compounds are molecules, mixtures are elements.
Compounds are chemically bonded together, while mixtures are not.
Air is a?
Element
Mixture
Compound
Molecule
Mixtures of liquids, or mixtures of gases, happen by a process called?
Osmosis
Diffusion
Mitosis
Convection
Which statement best describes a mixture?
The components of a mixture must be separated by chemical means.
The components of a mixture cannot be separated.
The components of a mixture can be separated by physical means.
Mixtures are the result of a chemical reaction.
If you have a beaker containing a mixture of salt water, which process could be used to separate the salt from the water?
Melting
Freezing
Sublimation
Evaporation
Carbon Dioxide is a?
Mixture
Element
Compound
None of the above
A heterogeneous mixture is one in which?
The different substances are clearly visible.
The different substances are evenly distributed.
Some of the substances are bonded together, while the rest are not.
Does not react with other substances.
The process used to separate the different colors of black ink is called?
Diffusion
Chromatoraphy
Evaporation
Ink spreading
Which statement best describes a mixture of salt water?
The water is the solute, and the salt is the solvent.
The salt is the solvent, and the water is the solute.
The water is the mixing agent.
The slat is the solute, and the water is the solvent.
A bowl of milk and cereal is an example of?
A heterogeneous mixture.
A homogeneous mixture.
Just milk and cereal and nothing more
An anomalous mixture.
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