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WorksheetsS1 Chemical Reactions End of Unit Test
Total questions: 14
Worksheet time: 7mins
Which of the following is classed as a physical change?
Temperature rise
Colour change
Ice melting
Gas being given off
An exothermic reaction is when the temperature of a reaction increases?
True
False
During an endothermic reaction the temperature decreases during the reaction?
True
False
In the summer, the Eiffel Tower is....?
Bigger than in the winter because it contracts
Smaller than in the winter because it contracts
Bigger than in the winter because it expands
Smaller than in the winter because it expands
Which reaction would be the fastest?
Burning a tree trunk
Burning a wooden splint
Burning wood shavings
Burning a forest of trees
Sarah used 10 grams of a catalyst in an experiment. How much of it would have been used up?
5 grams
7.5 grams
10 grams
0 grams
Which reaction would be the fastest?
A
B
C
D
Which of the following would NOT increase the rate of a reaction?
Increasing the temperature
Increasing the concentration
Increasing the particle size
Decreasing the particle size
Ice melts at what temperature in degrees celcius?
50
80
100
0
Water boils at what temperature in degrees celcius?
85
95
105
100
A new substance is made is an example of...…a?
Chemical change
Physical change
The ball fits through the hoop exactly. After the ball was heated strongly, Sam noticed that it did not fit through the hoop. What has happened to the ball so that now it does not fit through the hoop?
Expanded
Contracted
Exploded
Imploded
Identify the two methods which could be compared to show the effect of temperature on how much the potatoes have cooked in a certain time.
A+B
A+C
A+D
A+E
Which potatoes would cook the fastest?
B
C
D
F
