Dissolving

Anna filled a ​cup with hot tea. Then she added a sugar cube. ​Which of these will help to make the sugar cube dissolve more quickly? 

• stirring the hot tea
• adding more sugar cubes
• adding ice to the tea
• pouring more tea into the cup

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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.     

In which cup will the salt dissolve more slowly? 

• The salt will not dissolve in either cup
• The salt dissolves more slowly in the hot water
• The salt dissolves more slowly in the cold water
• The salt dissolves at the same speed in both cups

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What things can be dissolved?

• salt

• sand

• black pepper powder

Salt dissolves in water.

• True

• False

Tags

NGSS.MS-PS1-2

Cold water makes a solid ___________________.

• dissolve faster

• dissolve slower

• not dissolve

Salt dissolves in water.

• True

• False

Tags

NGSS.MS-PS1-2

Sand dissolves in water.

• True

• False

Sugar dissolves in water.

• true

• false

Flour dissolves in water.

• true

• false

Flour dissolves in water.

• true

• false