1st 9 Weeks Science Test

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What is a liquid?

Back

A liquid is a state of matter that has a definite volume but no definite shape. It takes the shape of its container. Example: Apple juice.

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What is relative density?

Back

Relative density is a measure of how dense an object is compared to the density of water. It helps determine if an object will float or sink.

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What does soluble mean?

Back

Soluble means that a substance can dissolve in a liquid. Example: Sugar is soluble in water.

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What does insoluble mean?

Back

Insoluble means that a substance cannot dissolve in a liquid. Example: Sand is insoluble in water.

Front

What happens when an object sinks in water?

Back

When an object sinks in water, it has high relative density compared to water.

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What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without changing its chemical composition. Example: Sharpening a pencil.

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What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Example: Burning wood.

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What is magnetism?

Back

Magnetism is a physical property that describes the ability of a material to attract or repel other materials. Example: A magnet attracting iron.

Front

What is the physical state of matter?

Back

The physical state of matter refers to the distinct forms that different phases of matter take on. The three main states are solid, liquid, and gas.

Front

What is density?

Back

Density is the mass of an object divided by its volume. It determines whether an object will float or sink in a fluid.