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WorksheetsKitchen Science
Total questions: 17
Worksheet time: 12mins
Name
Class
Date
1.
Increasing the temperature of something is called _______.
a)
heating
b)
cooling
c)
non-reversible change
d)
reversible change
2.
Decreasing the temperature of something is called ______.
a)
heating
b)
cooling
c)
non-reversible change
d)
reversible change
3.
Cooking an egg is an example of a __________.
a)
non-reversible change
b)
melting
c)
reversible change
d)
none of the above
4.
what are the particles in a solid like?
a)
Far apart
b)
Wiggly and not close together
c)
Close together
d)
They don't have particles.
5.
What state of matter is slime?
a)
Liquid
b)
Gas
c)
Solid
d)
Solid and a Liquid
6.
What are the three states of matter?
a)
Melting, Freezing, and Particles
b)
Solid, Liquid, and Gas
c)
Ice Cube, Rock, and rock
d)
Three states of matter
7.
When a solid reaches the temperatures of its ___, it can become a liquid.
a)
melting point
b)
freezing point
c)
boiling point
d)
density
8.
When a liquid reaches the temperatures of its ___, it can become a gas.
a)
melting point
b)
freezing point
c)
boiling point
d)
density
9.
True or False: Colder liquids sink, while warmer liquids rise.
a)
True
b)
False
10.
True or False: The molecules of warm air move slower and closer together than molecules of cool air.
a)
True
b)
False
11.
Which of these isn't in the fire triangle?
a)
Fuel
b)
Heat
c)
Oxygen
d)
Carbon dioxide
12.
Is combustion a reversible reaction?
a)
Yes.
b)
No.
13.
The conditions which are required for combustion to take place are:
a)
fuel
b)
heat
c)
oxygen
d)
all of these
14.
Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?
a)
Water
b)
Carbon Dioxide
c)
Dry Chemical
d)
Foam
15.
The word equation for combustion is: fuel + oxygen --> water + ________ __________
a)
Carbon dioxide
b)
Limewater
16.
8.7: Combustion is when a __________ reacts with oxygen
a)
petrol
b)
fuel
c)
fire triangle
d)
carbon dioxide
17.
True or false, bubbling is a sign of a chemical reaction?
a)
True
b)
False
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