Unit 1 Review

Physical Properties

1

Physical properties of matter are things you can ________ or _______.

observe or measure

2

____ will spread through out an entire container.

Gas

3

Items made of ____ are attracted to a magnet.

Iron, nickel, cobalt.

Relative Density

1

Items with a greater density than water will _____.

sink

2

Items with a density less than water will _____.

float

Conductor or Insulator?

1

Name a material that is an insulator.

Rubber, plastic, foam, paper, wood, etc.

2

Name a material that is a conductor.

Metal, water, etc. 

3

What TWO types of energy flow through a conductor?

Heat/thermal and electrical.

Mixtures

1

What tool could be used to separate iron filings and pepper?

A magnet

2

What tool could be used to separate a mixture of water and sand?

Filter, strainer, sieve, etc.

3

What tool could be used to separate golf balls and ping pong balls?

Water to float or sink, etc. 

Solutions

1

Solutions are easy/not easy to separate.

Not easy.

2

True or false: Lemon juice and water make a solution.

True.

3

What method could be used to separate a solution of salt and water?

Evaporation.

4

True or false: sand and water make a solution.

False.