Mixtures, Compounds, and Solutions

What is a mixture?

• A combination of two or more substances

• A compound made of different elements

• A special type of solution

• A substance that dissolves in another substance

What is a compound?

• A combination of two or more substances

• Has molecules with atoms of different elements.

• A special type of solution

• A substance that dissolves in another substance

Tags

NGSS.MS-PS1-1

What is the solute in a sugar and water solution?

• Sugar

• Water

• Salt

• Carbon dioxide

What is the solvent in a sugar and water solution? (Solutions paragraph 2)

• Sugar

• Water

• Salt

• Carbon dioxide

Why is soda fizzy? (Text Feature: Photograph)

• Because it is a mixture of sugar and water

• Because it is a compound made of carbon dioxide

• Because it is a solution with carbon dioxide dissolved in liquid

• Because it is a mixture of salt and sugar

What happens to the physical properties of ingredients in a solution? (Physical Properties)

• They remain the same

• They change

• They become invisible

• They separate into individual elements

Tags

NGSS.MS-PS1-2

How can you separate iron filings from pepper in a mixture?

• Using a magnet

• Using a paper filter

• Using a sieve

• Using a coffee filter

How can you separate sand from water in a mixture?

• Using a magnet

• Using a paper filter

• Using a sieve

• Using a bucket

How can you separate pebbles from sand in a mixture?

• Using a magnet

• Using a paper filter

• Using a sieve

• Using a coffee filter

What is the main difference between a mixture and a compound?

• A mixture is made of different elements, while a compound is a combination of substances

• A mixture is a combination of substances, while a compound is made of different elements

• A mixture cannot be separated, while a compound can be easily separated

• A mixture has physical properties that change, while a compound has physical properties that remain the same