Solutions and Mixtures

Which of the following are solutions?

• carbon dioxide and water

• salt and milk

• sand and water

• oatmeal and milk

Which of the following are mixtures?

• sugar and milk

• salt and water

• oatmeal and milk

• rice and water

Which will dissolve faster; granulated sugar or sugar cubes?

• grains of sugar because the molecules are closer together

• grains of sugar because the solvent can separate the molecules easier

• sugar cubes because the solvent can separate the molecules easier

• sugar cubes because the molecules are closer together

How do you separate salt from water?

• boil the solution

• use a filter

• burn the container

• add carbon dioxide

Tags

NGSS.MS-PS1-4

In a solution, the particles of each substance are.....

• don't mix easily

• easily seperated

• evenly spread out

• divided into distinct layers

You decided to make Kool-Aid. What happens?

• The Kool-Aid (solute) dissolves the water (solvent)

• the water (solute) dissolves the Kool-Aid (solvent)

• the water (solvent) dissolves the Kool-Aid (solute)

• The Kool-Aid (solvent) dissolves the water (solute)

Which statement is correct?

• The properties of the components of a mixture change after mixing

• The properties of the components of a mixture remain the same

• When substances are mixed, the mixture forms a new substance

• Mixtures formed with water can always be separated by condensation

Tags

NGSS.MS-PS1-2

Salt,sand and sawdust can be separated in four steps. Put them in order

A - Evaporate all the water to get the salt

B -Remove the sawdust from the top

C - Dump mixture into a bucket of water

D - Filter the sand from the water

(a)  

Tags

NGSS.MS-PS1-2

Which tool can be used to separate salt from water?

• a refrigerator

• a bucket of water

• a kitchen stove

• a filter

Air is a mixture

• False

• True