7th Grade Unit 1 Module 2 Review

Density is an example of a ____.

• chemical change

• chemical property

• physical change

• physical property

When two or more substances are combined so each substance can be separated by physical means, the result is a(n)____.

• chemical change

• compound

• element

• mixture

A substance's ____________ properties predict how it will react with other substances.

• physical

• natural

• chemical

• electrical

Which formula listed below correctly finds density?

• D = m/V

• D = V/m

• D = g/V3

• D = g3/V

A homogeneous mixture is a mixture in which the substances are not evenly mixed.

• True

• False

Which of the following can NOT be used to separate heterogeneous mixtures?

• a strainer

• a magnet

• a scoop

• a microscope

Which of the following is a substance?

• soda

• trail mix

• granite

• gold

Only a ______________ can separate the elements that make up a compound.

• physical change

• physical property

• chemical change

• chemical property

Mixing is a _____________

• Physical property

• physical change

• chemical property

• chemical change

An uneven mixture of particles is called a ________________.

• homogeneous mixture

• heterogeneous mixture

• regular mixture

• compound