WorksheetsCHANGE 2
Total questions: 20
Worksheet time: 10mins
The phase change when a solid is heated and becomes a liquid.
freezing
boiling
melting
The phase change when a liquid is cooled and becomes a solid.
boiling
freezing
melting
The phase change when a liquid is heated and becomes a gas.
boiling
freezing
melting
If you want to change water from a liquid to a solid, what should you do?
cool it in the freezer
heat it in the sun
heat it on the hot stove
If you want to change an ice cube from a Solid to a liquid, what should you do?
heat it in the sun
cool it in the freezer
mix it with water
If you want to change water from a liquid to a gas, what should you do?
heat it in the sun
heat it on a hot stove
cool it in the freezer
Things can change when they are heated or cooled (2).
TRUE
FALSE
What state of matter is the ice changing?
Solid to liquid
Liquid to solid
liquid to gas
What happen if you cook a bar of chocolate on a hot stove?
it can melt and change into liquid
it can freeze and change into solid
it can boil and change into gas
What happen to the cooked chocolate if you leave it for 10 minutes?
it can freeze and back to a solid
it can boil and change into a gas
it can melt and change into solid
Can the cooked egg change back into the raw egg?
Yes, it can
No, it can't
Dissolving happens when....
the solid sink to the bottom
the solid float to the top
the solid break into tiny pieces you can't see
What happened to the solid in this photograph?
it freezes
it melts
it dissolves
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
In which cup will the salt dissolve more slowly?
Cold water makes a solid ___________________.
dissolve faster
dissolve slower
not dissolve
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 faster?
The salt dissolves at the same speed in both cups
The salt dissolves faster in the hot water
The salt dissolves faster in the cold water
Hot water makes a solid ___________________.
dissolve faster
dissolve slower
not dissolve
Which of the following can dissolve in the water (3)?
salt
sand
talcum powder
instant coffee
baking soda
Which of these following cannot dissolve in the water(3).
beans
sugar
chalk
baking soda
sand
