20 questions
Solid can change into a liquid when it's .......
cooled
burned
heated
freezed
Temporary change means....
the materials that undergo change could produce another substance.
the materials that undergo change could change into another substance.
the materials that undergo change cannot return to its original form.
the materials that undergo change can return to its original form.
The freezing point of water is...
100oC
0oC
-10oC
150oC
Melting is.....
A process where a gas changes into a solid.
A process where a liquid changes into solid.
A process where a solid changes into gas.
A process where a solid changes into a liquid.
What scientific tool can be a student use to measure the freezing point of water?
Stopwatch
Celsius thermometer
Pan balance
Hot plate
Melting needs heat.
TRUE
FALSE
Ice cream melts when it is placed in the freezer.
TRUE
FALSE
Choose the pictures that show MELTING. (You may choose more than 1).
Choose the pictures that show FREEZING. (You may choose more than 1).
At what temperature in degrees Celsius does water freeze?
150
0
200
32
The temperature at which a substance changes states from a solid to a liquid
Freezing point
Melting point
Evaporation
Condensation
The change of state from solid to liquid is called
melting
freezing
gas
smog
Freezing point
The classification of matter as a solid, a liquid, or a gas
Physical change in matter from a gas to a liquid
The temperature at which a substance changes states from a solid to a liquid
The temperature at which a substance changes from a liquid to a solid
Do all matter have the same boiling, melting, and freezing points?
Yes
No
What causes ice to melt?
evaporation
vapour
heat
transpiration
An object changes states from a liquid to a solid . It changes after the temperature gets colder . What is this called ?
a gas
a solid
melting
freezing
Mr. Wong leaves her bowl of ice cream on the sidewalk during a hot summer day. Which is the best prediction of what will happen to the ice cream ?
The ice cream will change from a solid to a liquid
The ice cream will change from a liquid to a gas
The ice cream will change from a gas to a solid
There is no change
Physical state
Physical change in matter from a gas to a liquid
The classification of matter as a solid, a liquid, or a gas
Physical change in matter from a liquid to a gas
The temperature at which a substance changes from a liquid to a solid