PFA1: Practice Test

Front

What is a magnet used for in sorting materials?

Back

A magnet is used to attract and separate magnetic materials, such as iron, from non-magnetic materials, like aluminum.

Front

What is a mixture?

Back

A mixture is a combination of two or more different types of matter that can be separated by physical means.

Front

How can you separate sand from rocks?

Back

You can separate sand from rocks using a wire mesh or sieve, as the sand will pass through while the rocks will not.

Front

What is the difference between a mixture and a solution?

Back

A mixture is a combination of substances that retain their individual properties, while a solution is a homogeneous mixture where one substance is dissolved in another.

Front

What happens when salt is mixed with water?

Back

When salt is mixed with water, it dissolves to form a solution.

Tags

NGSS.MS-PS1-2

Front

What is the purpose of a funnel?

Back

A funnel is used to channel liquids or fine-grained substances into containers with small openings.

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into vapor, often used to separate a liquid from a dissolved solid.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is a property of mixtures?

Back

Mixtures can be separated by physical methods such as filtration, evaporation, or using a magnet.

Front

What tool would you use to separate iron paperclips from sand?

Back

You would use a magnet to separate iron paperclips from sand.

Front

What is a solution?

Back

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