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Front

What is an emulsifier?

Back

An emulsifier is a substance that helps two different substances mix together, such as oil and water.

Front

The ability of a substance to dissolve is called...?

Back

Solubility is the ability of a substance to dissolve in a solvent, like sugar dissolving in water.

Front

True or false? Substances are made of only one kind of atom or molecule.

Back

True. A substance can be made of only one type of atom (like gold) or one type of molecule (like water).

Front

What happens to the amount of water when it freezes into ice?

Back

When water freezes into ice, it has the same amount of water as it did when it was a liquid.

Front

Which solids dissolve in water?

Back

Sugar and citric acid are examples of solids that dissolve in water.

Front

What is solubility?

Back

Solubility is the measure of how much of a substance can dissolve in a given amount of solvent at a specific temperature.

Front

What is a solution?

Back

A solution is a mixture where one substance (the solute) is completely dissolved in another (the solvent).

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance that dissolves, while a solvent is the substance that does the dissolving.

Front

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.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with different properties.