STAAR Science Matter Review

Front

What happens to sugar when it is added to water and stirred?

Back

The sugar completely dissolves in the solution.

Front

Which substance is insoluble in water?

Back

Sand.

Front

What property of cooking oil and water is demonstrated when they are mixed?

Back

Cooking oil is less dense than water.

Front

What do a penny, metal spoon, and nail have in common?

Back

They all conduct electricity, sink in water, and are magnetic.

Front

What causes ice cream to change from solid to liquid?

Back

Adding heat.

Front

What is a solution?

Back

A mixture where one substance is completely dissolved in another.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What is the difference between soluble and insoluble substances?

Back

Soluble substances can dissolve in a liquid, while insoluble substances cannot.

Front

What is an example of a soluble substance?

Back

Sugar.

Front

What is an example of an insoluble substance?

Back

Sand.