States of Matter and Measurement

Front

What are the three states of matter?

Back

Solid, Liquid, Gas.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

What is an example of a homogeneous mixture?

Back

Saltwater.

Front

What is an example of a heterogeneous mixture?

Back

Salad.

Front

How can you separate a mixture of sand and salt?

Back

Dissolve the salt in water, then filter out the sand.

Front

What is the boiling point of water?

Back

100 degrees Celsius (212 degrees Fahrenheit) at sea level.

Front

What is the freezing point of water?

Back

0 degrees Celsius (32 degrees Fahrenheit) at sea level.

Front

What happens to the particles in a solid when it is heated?

Back

They gain energy and may begin to move more freely, potentially becoming a liquid.