TWIG Science DQ2 DL1-4 Flashcard

Front

What happens when you mix a substance with water?

Back

You can see if it dissolves.

Front

True or False: Testing a mixture will show results that match the substances in it.

Back

True

Front

How can heating a material help identify it?

Back

You can see whether or not it melts.

Front

What can you observe when mixing a substance with vinegar?

Back

You can see if it has a reaction with the vinegar.

Front

What is a mixture?

Back

A combination of two or more substances that can be separated.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent, like water.

Front

What is a chemical reaction?

Back

A process where substances combine or break apart to form new substances.

Front

What is the purpose of heating a substance in experiments?

Back

To observe changes in state, like melting or boiling.

Front

What does it mean if a substance dissolves in water?

Back

It means the substance has a solubility in water.

Front

What is an example of a physical change?

Back

Melting ice into water.