SC 5 P 8 2

What most likely happened in the next 2 minutes?

• The salt floated away

• The salt dissolved in the water.

• The temperature of the water increased.

• The salt settled to the bottom of the flask.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Quentin made a poster showing some everyday substances. He plans to write the

properties underneath each picture.

Which of Quentin’s choices will dissolve in water?

• oil

• soil

• sand

• sugar

Tags

NGSS.MS-PS1-2

What most likely happened to the sugar?

• The sugar floated to the top surface

• The sugar dissolved in the lemonade

• The sugar floated away after it was stirred

• The sugar all settled to the bottom of the pitcher

Tags

NGSS.MS-PS1-2

Ernesto and Amanda fill two cups with water. They use hot water in one cup and cold

water in the other cup. Next, they will stir a spoon of salt into each cup.

What will most likely happen to the salt in the cups?

• The salt will not dissolve in either cup

• The salt will dissolve more slowly in the hot water.

• The salt will dissolve more slowly in the cold water.

• The salt will dissolve at the same speed in both cups.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Trisha and Fred each added a spoonful of sugar to a glass of water. The water was

the same temperature in both glasses. Trisha stirred the water, but Fred did not. What

most likely happened to the sugar in the two glasses?

• More of the sugar dissolved in Fred’s glass

• More of the sugar dissolved in Trisha’s glass.

• The sugar dissolved faster in Fred’s glass.

• The sugar dissolved faster in Trisha’s glass.

Ms. Worth’s students are comparing different substances to find out which dissolves most quickly in water. They put a sample of each substance into a beaker. The size of each sample is the same. The water in the beakers is at the same temperature, and the students stir the water for the same amount of time. Which substance will dissolve MOST quickly in water?

• bar of soap

• spoon of sugar

• spoon of oil

• small piece of cardboard

Tags

NGSS.MS-PS1-2

Hana put the same amount of salt into these two beakers of water. She stirred them into the same amount of water. What will most likely happen to the salt in the beakers?

• The salt will dissolve at the same speed in both beakers.

• The salt will not dissolve in either beaker. It will sink to the bottom

• The salt will dissolve more slowly in Beaker A because the temperature is

  lower.

• The salt will dissolve more slowly in Beaker B because the temperature is

  higher.

Tags

NGSS.MS-PS1-4

Which of these will NOT dissolve in water?

• salt

• sugar

• olive oil

• baking powder

Anna filled a thermos full of hot tea. Then she added a sugar cube. Anna wants to make the sugar cube dissolve more quickly. Which of these will NOT work?

• stirring the hot tea

• shaking the thermos

• adding ice cubes to cool the tea

• breaking the sugar cube into smaller pieces

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why is Darla stirring the iced tea?

• Stirring makes the iced tea colder

• Stirring makes the sugar dissolve more quickly

• Stirring keeps the sugar from forming into larger pieces

• The sugar will not dissolve unless she stirs the iced tea.