Fun with Mixtures and Solubility

What is a mixture?

• A mixture is one material (thing) like milk.

• A mixture is a solid

• A mixture is made when we combine 2 or more things.

Can you name something that is a mixture?

• Soil

• Water

• Oil

• Fruit

Can you name something that is a mixture?

• Salt

• Water

• Oil

• Air

What does it mean to dissolve something?

• Something that we can see in a liquid.

• To heat a solid until it turns into gas.

• To mix a solid with a liquid until the solid disappears (breaks down)

What happens when you stir salt in water?

• The water turns into rocks.

• The salt floats on the surface.

• The salt changes the colour of the water.

• The salt dissolves in the water.

Is salt soluble or insoluble in water?

• Insoluble

• Soluble

• It changes the colour of the water

• Only soluble in hot water

What does soluble mean?

• It means something cannot dissolve in water or a liquid

• It means something can dissolve in water

Can paperclips dissolve in water?

• Yes, paperclips can dissolve in water.

• No, paperclips cannot dissolve in water.

What does it mean if something is insoluble?

• Something that can easily dissolve into water.

• Something that cannot dissolve in water.

• A solid that can be melted into a liquid.

Can you see salt after it dissolves in water?

• No, you cannot see salt after it dissolves in water.

• Yes, you can still see the salt after it has dissolved.