Solutions Review

Which of these is an example of a solution?

• Ice melting in a glass

• Sugar dissolving in water

• Mixing sand and pebbles

• Making a fruit salad

All ________________ are mixtures.

• solutions

• solvents

• solutes

• substances

Using the table, which solution is the most concentrated?

• Solution #1

• Solution #2

• Solution #3

• Solution #4

You made lemonade, but it was too sweet (too concentrated). What could you do to dilute the solution?

• Add more sugar

• Add more water

• Boil the lemonade

• Stir the lemonade

Josie added 5 mg of sugar to 200 mL of water. Later she adds another 15 g of sugar. How did adding sugar change the solution?

• It made the solution less concentrated.

• It made the solution more concentrated.

• It increased the amount of solvent.

• It decreased the amount of solvent.

In order to dissolve a solute FASTER in a solution, you should ______________

• stir the solution

• use a hot solvent

• use smaller particle sizes

• All of the Above

In each cup, 20 g of salt was added without stirring. In which cup will the salt disolve the fastest?

• Cup 1

• Cup 2

• Cup 3

• Cup 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which form of sugar will dissolve the fastest?

• Sugar Cube

• Granulated Sugar

Tags

NGSS.MS-PS1-2

Which would mostly take the LONGEST to dissolve?

• sugar cube in hot water

• sugar cube in cold water

• granulated sugar in hot water

• granulated sugar in cold water

Which characteristic increases the rate of a solute dissolving in a solution?

• large particle size

• more solute

• more solvent

• stirring the solution