G3 Science Unit 2 Mixing Materials

SCIENCE
Unit 2
Mixing
Materials

Grade 3 - by Ms. Mona

2.1 Solids, Liquids, and Gases

I can:

1. Know that the materials can be solids, liquids or gases.

2. Describe the differences in the properties of solids and liquids"

2.1 Solids, liquids, and gases

All materials are either solids, liquids, or gases.

Solids

Always stay the same shape unless they are compressed, stretched, twisted or bent.

Multiple Choice

What is the property of Solids?

• Always stay the same shape

• Change shape easily

• Take the shape of the container

• Spread out to fill the space around them.

Liquids

Change shape easily and take the shape of the container they are in.

Multiple Select

What is the property of Liquids? (choose 2 correct answers)

• Always stay the same shape

• Change shape easily

• Take the shape of the container

• Spread out to fill the space around them.

Gases

Spread out in all directions to fill the space around them.

Air is a mixture of gases.

It mostly a gas called nitrogen but there is also some oxygen.

We need oxygen to breathe.

Nitrogen and oxygen have no colour so we can't see them.

Some gases do have a colour, and some have a smell.

Multiple Select

What is the property of Gases? (choose 3 correct answers)

• Always stay the same shape

• Change shape easily

• Take the shape of the container/space

• Spread out to fill the space around them.

Multiple Choice

This shampoo is a _____

• Solid

• Liquid

• Gas

Multiple Choice

This oil is a _____

• Solid

• Liquid

• Gas

Multiple Choice

Inside this balloon is a _____

• Solid

• Liquid

• Gas

Multiple Choice

This rice is a _____

• Solid

• Liquid

• Gas

Multiple Choice

This baking soda is a _____

• Solid

• Liquid

• Gas

2.2 Separating Mixtures

I can:

1. Describe how to separate solid/solid mixtures based on the physical properties of the solids

2. Describe the differences in the properties of solids and liquids

2.2 Separating Mixtures

2.2 Separating Mixtures

​A sieve or a net with holes that would only let the smaller beans through could be used to separate the mixture.

Multiple Select

Which ones are sieves?

Using equipment

When two or more materials are mixed together it is called a mixture.

Multiple Choice

"when two or more materials are mixed together"

• equipment

• mixture

• separate

• megnetic

Multiple Choice

"objects that can be used to do something"

• equipment

• magnet

• separate

• mixture

Multiple Choice

"to put into groups"

• equipment

• mixture

• separate

• megnetic

Using equipment

Multiple Choice

"a metal object that can attract some other metals"

• magnet

• non-magnetic

• separate

• mixture

Multiple Choice

"a material that is pulled towards to a magnet"

• magnet

• non-magnetic

• magnetic

• mixture

Multiple Choice

"a material that is not pulled towards to a magnet"

• magnet

• non-magnetic

• magnetic

• mixture

​Look at this mixture of sand, rice and paperclips.

Multiple Choice

What equipment can you use to separate the paperclips from the mixture?

Multiple Select

What equipment can you use to separate the sand from the mixture?

2.3 Dissolving