Dissolving Materials

Julia is looking for examples of substances that will dissolve in water. She experiments with some things she finds in her kitchen at home.

Which of these will NOT dissolve in water?

• salt

• sugar

• olive oil

• baking powder

Ruth wanted to surprise her family by making cookies. She found a recipe to make

shortbread cookies. She needs butter, sugar, flour, baking powder, vanilla, and salt.

Which of the foods in Ruth’s recipe will NOT dissolve in water?

• salt

• baking powder

• butter

• sugar

Mark and Susan added salt to a flask of water at 9:05 A.M.

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

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

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

Lonnie stirred some sugar into a pitcher of lemonade.

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.5-PS1-1

NGSS.5-PS1-4

Darla put some sugar in a pitcher of iced tea.

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.

Rey is making soup. He will dissolve cubes of instant soup mix in hot water.

How can Rey make the soup cubes dissolve more quickly in the water?

• use less water

• use more water

• add ice cubes to cool the water

• break the soup cubes into smaller pieces

Sharla is using powdered mix to make hot chocolate. She will boil some water and

then stir in the mix.

What is the best way to make the powdered mix dissolve more quickly?

• use cold water

• use more water

• stir the mix more slowly

• stir the mix more quickly

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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