Physical Science Ch. 2 Test

Which of these substances is not an element?

• water

• hydrogen

• aluminum

• iron

Tap water is?

• an element

• a compound

• a substance

• a mixture

When a homemade oil and vinegar salad dressing is left standing, it separates into layers. The salad dressing is a

• solution

• suspension

• colloid

• compound

Which of the following is not an example of a physical property?

• density

• flammability

• hardness

• melting point

which material is a poor conductor of heat?

• iron

• silver

• wood

• copper

Tags

NGSS.MS-PS3-3

A material that can be hit without shattering is?

• viscous

• flammable

• malleable

• hard

At room teperature, a substance with a melting point of 40 degrees celsius is a

• solid

• liquid

• mixture

• gas

Tags

NGSS.MS-PS1-4

Which action involves a chemical change?

• making ice cubes

• adding sugar to tea

• cutting paper

• baking a cake

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A substance that has little tendency to change into other substances is said to have low

• reactivity

• density

• viscosity

• conductivity

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Formation of a precipitate is usually evidence of

• the separation of a mixture

• a chemical change

• the formation of a mixture

• a physical change

Tags

NGSS.MS-PS1-2