Types of mixtures

To dissolve in water.

• solubility
• density
• mixture
• evaporation

Tags

NGSS.MS-PS1-2

A combination of rocks and water is an example of

• A mixture
• A solution 
• Dissovling

Salt dissolves in water like ----

• Pepper dissolves in water
• Sugar dissolves in water
• Rocks dissolve in water
• Seeds dissolve in water

Tags

NGSS.5-PS1-3

Students are conducting an experiment with salt water.  A large quantity of sand is added to the container of salt water.  What do you expect to observe?

• The salt floats to the top of the container.
• The sand dissolves.
• The sand settles to the bottom of the container.
• The salt and sand combine to form a solid.

Susan prepares a mixture of oil, lemon juice, and water as a salad dressing.  Why will she have to shake the mixture before pouring over her salad?

• The lemon juice is more dense than the water and oil.
• The oil is less dense than the water and lemon juice.
• The water, lemon juice, and oil will form layers.
• The lemon juice and oil will combine to form a solid.

A glass beaker contains 100 milliliters of water into which 5 grams of salt was stirred.  Which item should be used to separate this particular mixture?

• triple beam balance
• hot plate
• paper filter
• magnet

A combination of two or more substances.

• mixture
• solution
• both a mixture and a solution
• this isn't possible

The three types of mixtures are..

• solutions, solutes, solvents

• solutions, colloids, suspensions

• solutions, colloids, sediments

• concentrates, dilutes, dissolvers

If a substance is soluble is means...

• that it can dissolve into another substance

• that it cannot dissolve into another substance

• it must be a concentrated substance

• it must be a diluted substance

An example of an insoluble substance would be..

• cordial in water

• chocolate power in milk

• sugar in water

• oil in water