QSE 1 Review

Front

What happens to salt when it is added to water?

Back

The salt dissolves in the water, but it does not disappear. It can be recovered by evaporating the water.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties.

Front

What tool can be used to separate iron filings from sand?

Back

A magnet can be used to attract and separate iron filings from sand.

Front

Which of the following is NOT a mixture: Fruit Salad, Peanuts, Multi-Colored Jelly Beans, Lemonade?

Back

Peanuts are not a mixture; they are a single substance.

Front

What is the best method to separate gravel from iron filings?

Back

Using a magnet is the best method to separate gravel from iron filings.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor, often used to separate dissolved substances from a liquid.

Front

What is the role of a magnet in separating mixtures?

Back

A magnet attracts magnetic materials, allowing for the separation of those materials from non-magnetic substances.

Front

What is an example of a homogeneous mixture?

Back

Lemonade is an example of a homogeneous mixture because it has a uniform composition throughout.

Front

What is an example of a heterogeneous mixture?

Back

Fruit salad is an example of a heterogeneous mixture because the individual components can be seen and separated.

Front

What does it mean for a substance to dissolve?

Back

To dissolve means to mix a solid into a liquid so that it forms a solution.