WorksheetsYear 3 Science Semester 1
Total questions: 41
Worksheet time: 25mins
Which of the following is NOT a heat source?
What is Earth's main heat source?
Which shows the use of heat?
Which shows the use of heat?
Without the sun's heat, what would happen to earth?
aliens would invade
the earth would explode
it would be too cold to survive
Which is NOT a way that heat can be produced?
electricity
rubbing your hands together
fire
rain
What is a conductor?
a material that heat moves through easily
a material that heat does not move through easily
a material that turns cold when heated
a tool for measuring temperature
What is an insulator?
a material that heat moves through easily
a material that heat does not move through easily
a material that turns cold when heated
a tool for measuring temperature
Which of these is a better conductor?
Which of these is a better insulator?
Which of these is a measure of how hot or cold something is?
temperature
radiation
insulation
friction
The tool used to measure temperature is called a/an
insulator
conductor
thermometer
radiation
Heat is a form of _____________.
cycle
energy
diversity
Object that gives off heat is called _______________ of heat.
sources
places
things
Unit of measurement for temperature.
millilitres
kilometres
kilograms
degree Celcius
_____________ heat is needed if we want to increase the temperature.
more
less
little
Things get colder = ____________ heat
loses
gains
Heat always travels from _______________________________.
a colder place to a hotter place until both places reach the same temperature.
a hotter place to a colder place until both places reach the same temperature.
Solid, liquid and gas ___________ when it gains heat.
contract
expand
Metals are ____________ conductor of heat.
best
good
better
Plastic is a _____________ conductor of heat.
poor
bad
frying bacon in a pan
conduction
convection
radiation
holding a bowl of hot soup
conduction
convection
radiation
putting butter on warm pancakes
conduction
convection
radiation
sun shining through a window
conduction
convection
radiation
boiling water in a pot
conduction
convection
radiation
a microwave
conduction
convection
radiation
using a match to light a candle
conduction
convection
radiation
a hot attic
conduction
convection
radiation
walking barefoot on a hot sidewalk
conduction
convection
radiation
a hot air balloon rising into the air
conduction
convection
radiation
I can be held in your hands. I don't change shape when you move me. What am I?
A solid
A liquid
Neither a solid nor a liquid
I cannot be picked up. I take the shape of any container. What am I?
A solid
A liquid
Neither a solid nor a liquid
Which of the following are examples of liquids?
Wood and paper
Shampoo and oil
Shoes and socks
Sugar and sand can be poured. Are they examples of solids or liquids?
Solids
Liquids
Neither
When a solid is heated, it turns into a liquid. This is called...
Dissolving
Freezing
Melting
When a liquid is cooled, it turns to a solid. This is called...
Dissolving
Freezing
Melting
Ice melts at 0 degrees Celsius. Aluminum melts at 660 degrees Celsius. Which melts if left outside on a hot sunny day?
Only the ice
Only the aluminum
Both would melt
Once a solid has turned to a liquid, can it be changed back to a solid again?
No, it can never be turned back into a solid.
Yes, by heating it.
Yes, by cooling it.
Why does candle wax run down the sides of a candle?
Because wax is always a liquid.
Because the wax is trying to escape.
Because the flame's heat turns the wax from a solid to a liquid.
How would you stop butter melting on a hot day?
Leave it on the table.
Put it in the oven.
Put it in the refrigerator.
