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WorksheetsL.5 - Final revision
Total questions: 34
Worksheet time: 19mins
Sugar is the __________________ in the mixture.
solute
solvent
Tea is the ________________ in the mixture.
Solution
solute
Water is the __________________ in the mixture.
solute
solvent
Evaporation occurs when water changes into
transpiration
snow
solid
water vapour
Which can occur at any temperature?
Boiling
Evaporation
Both
Which process is faster?
Boiling
Evaporation
Both
Which process is the change of state from liquid to gaseous?
Boiling
Evaporation
Both
What process occurs when tiny water droplets collecting together in the atmosphere?
clouds
evaporation
condensation
accumulation
What is the role of the sun in the water cycle?
provide heat energy for evaporation
provide heat energy for condensation
dry out the soil for runoff to occur
provide thermal energy for accumulation
in water cycle the water can turns again to the earth as ......................
rains
hail
snow
all of the above
in water cycle ................. give off water vapour from their leaves
oceans
lakes
plants
rivers
What is the process called when water vapor turns to liquid water?
evaporation
condensation
precipitation
transpiration
During evaporation, water changes from a _________ to a __________.
solid, liquid
gas, liquid
liquid, gas
liquid, solid
What process is show by letter A in the diagram?
condensation
evaporation
accumulation
precipitation
What is it called when a solid turns to a liquid?
Melting
Freezing
Boiling
Condensation
what are the particles in a solid like?
loosely packed
far away from each other
tightly packed
Solid can change into a liquid when it's .......
cooled
burned
heated
freezed
The melting point of ice is...
100oC
0oC
-10oC
150oC
Ice cream melts when it is placed in the freezer.
TRUE
FALSE
Melting needs heat.
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).
The temperature at which a substance changes states from a solid to a liquid
Freezing point
Melting point
Evaporation
Condensation
Do all matter have the same boiling, melting, and freezing points?
Yes
No
What is happening at the boiling point?
liquid to gas
solid to liquid
gas to liquid
liquid to solid
When a liquid reaches its boiling point, the temperature ..............
increase
decrease
stay constant
the filament in a light bulb is made of ..................
Tungsten
iron
aluminium
Tungsten is a very hard metal which has ................. melting point.
low
very high
very low
when all water evaporates from solution , the solid ........ is left behind
solute
solven
solution
adding salt to frozen roads makes road ............... icy
more
less
the following picture shows the particles of ............... material
solid
liquid
gas
