Modeling Matter End of Unit Assessment

Front

Why do scientists create models?

Back

To help answer questions about the real world that are too small to be seen.

Front

All matter is made up of particles too small to be seen.

Back

Atoms

Front

To use any of the five senses to gather information about something

Back

observe

Front

To pull on an object, even without touching it:

Back

attract

Front

Something scientists use to answer questions about the real world:

Back

model

Front

What does this image represent?

Back

Molecule

Front

The ability of a substance to dissolve is called...

Back

solubility

Front

What does chromatography paper do?

Back

Uses the molecules weight to separate colors.

Front

Which solids when mixed with water dissolved? Options: cumin and pepper, sugar and pepper, citric acid and cumin, sugar and citric acid

Back

sugar and citric acid

Front

When CAN a material dissolve in water?

Back

When it is soluble