8th Grade Science Practice SOL 2010

Front

What is the boiling point of a liquid?

Back

The temperature at which a liquid turns into vapor.

Front

What is an independent variable in an experiment?

Back

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a period in the periodic table?

Back

A horizontal row of elements in the periodic table.

Front

Why is water called the 'universal solvent'?

Back

Because it can dissolve the greatest number of substances compared to other solvents.

Front

What is one way to improve air quality?

Back

Carpooling with several people to reduce vehicle emissions.

Front

What is density?

Back

The mass of a substance divided by its volume, often expressed in g/cm³.

Front

What is the role of a temperature probe in experiments?

Back

To measure the temperature of a substance accurately.

Front

What is the difference between a chemical property and a physical property?

Back

A chemical property describes a substance's ability to undergo a chemical change, while a physical property can be observed without changing the substance's identity.

Front

What is the significance of the water cycle?

Back

It describes the continuous movement of water on, above, and below the surface of the Earth, essential for maintaining ecosystems.

Front

What is the purpose of a beaker in a laboratory?

Back

To hold, mix, or heat liquids in experiments.