5.5C Solutions 3

All of the following are examples of a solution except –

• soda

• a chocolate chip cookie

• lemonade

• the air we breathe

A teacher shows the students a solution of vinegar and water in a beaker. Then she adds one additional cup of vinegar to the beaker and stirs the solution. Which properties of the solution change after she adds more vinegar?

• The volume and the mass of the solution.

• The temperature and the volume of the solution.

• The volume and the physical state of the solution.

• The mass and the temperature of the solution.

Tags

NGSS.MS-PS1-2

A teacher adds sugar into a beaker filled with water and mixes it until it completely dissolves. Which statement listed below is correct?

• Sugar is the solute and water is the solution.

• Sugar is the solvent and water is the solute.

• Sugar is the solvent and water is the solution.

• Sugar is the solute and water is the solvent.

Which of the substances below will NOT dissolve when mixed with water?

• Sugar cube

• Vinegar

• Pepper

• Lemon juice

Tags

NGSS.MS-PS1-2

A student collects ocean water in a jar at the start of a beach vacation. She forgets to put the lid on and leaves the jar in the hot sun for seven days. What does the student most likely find when she returns to her jar?

• The ocean water evaporated and the jar is empty.

• The salt evaporated, leaving the water in the mug.

• The water evaporated, leaving dried salt at the bottom of the jar.

• The jar looks exactly the same.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

All of the following are correct statements about solutions except –

• a solution must contain two or more different substances that can be physically separated

• a solution must be a liquid

• the solute must be evenly distributed in the solution, also known as homogeneous

• a solution must have at least one solute and a solvent

A teacher is conducting an experiment. He adds powdered lemonade to one beaker, sugar to a second beaker and sand to a third beaker. He then adds water to each beaker and stirs the three different mixtures and waits for two minutes. What physical property of the substances is he trying to demonstrate for the class?

• Solubility in water

• Relative density

• Physical state

• Melting point

Tags

NGSS.MS-PS1-2

Which of the following is an example of a solution?

• Italian salad dressing

• Orange juice with pulp

• Cereal

• Coffee