MIXTURES TEST

Water can dissolve many things so it is called the .....

• wonderful water
• cohesion
• liquid
• universal solvent

Define solubility

• how much pressure is in an object has
• Surface Area per Temperature
• how much solute can dissolve in a solvent
• it is a made up word

Rey is making soup. He will dissolve cubes of instant soup mix in hot water.
How can Rey make the soup cubes dissolve more quickly in the water? 

• use less water
• use more water
• add ice cubes to cool the water
• break the soup cubes into smaller pieces

Which tools are best for separating a mixtures of sand, iron filings, and water?

• Hot plate and filter

• Tweezers and filter

• Filter and magnet

• Magnet and hot plate

A student makes a garden salad by stirring lettuce, tomatoes, carrots, and croutons together in a bowl. Why is the garden salad a mixture?

• the student cut the vegetables into equally sized pieces

• the vegetables are combined by maintain their physical properties

• the croutons cannot be taken out of the salad

• the salad grew from a garden

A cup of orange juice with pulp is poured into a glass. Which of these procedures could be done to separate the juice from the pulp?

• pour the juice through a coffee filter

• heat the juice in a pot until boiling

• pour the juice in another cup

• allow the mixture to settle, leaving the pulp at the bottom of the glass

The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as

• decanting
•  evaporation
• loading
• chromatography

When no more sugar will dissolve in a glass of water, the solution is

• unsaturated
• saturated
• supersaturated
• suspended

mixture of two or more substances; dissolved particles are spread evenly throughout the mixture

• solvent
• solute
• mixture
• solution

A substance that is made up of only one kind of atom is a(n)

• compound

• homogeneous mixtures

• element

• solution