Exploring Mixtures and Solutions

What does it mean when a substance is described as soluble?

• It cannot be mixed with other substances

• It can evaporate

• It dissolves in water

• It is a solid at room temperature

What does it mean if a substance is 'soluble'?

• It changes color when mixed

• It can evaporate

• It can be separated using a magnet

• It dissolves in another substance

What is a mixture?

• A combination of substances where each keeps its own properties

• A liquid that turns into a gas

• A combination of substances that change physical properties

• A substance dissolved in water

What happens to the physical properties of substances in a mixture?

• They remain the same

• They change completely

• They become liquids

• They disappear

Tags

NGSS.MS-PS1-2

Which of the following is NOT a solution?

• Sand in water

• Sugar in water

• Salt in water

• Coffee in water

What is the result of dissolving salt in water?

• A mixture

• An element

• A compound

• A solution

Why does sand and water not form a solution?

• Because sand changes the color of water

• Because sand does not dissolve in water

• Because sand evaporates with water

• Because sand dissolves in water

How can you separate a mixture?

• By dissolving it in water

• You cannot separate a mixture

• By boiling it

• Using a funnel or a magnet

What method is used to separate a solution?

• Boiling

• Filtering

• Using a magnet

• Freezing

What remains unchanged when a solution is separated?

• The taste of the solution

• The color of the solution

• The amount of solid

• The amount of liquid