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Worksheetsendothermic exothermic Level 3 FUN
Total questions: 19
Worksheet time: 13mins
Name
Class
Date
1.
In an exothermic reaction, heat is ...
a)
taken in
b)
given out
2.
In an endothermic reaction, heat is ...
a)
taken in
b)
given out
3.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
4.
In an endothermic reaction the system is releasing energy.
a)
True
b)
False
5.
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.
a)
Warm
b)
Cold
6.
Is respiration an Endothermic or an Exothermic reaction?
a)
Endothermic
b)
Exothermic
7.
A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?
a)
The temperature changed
b)
It is an endothermic reaction
c)
It is an exothermic reaction
d)
Two of the answers are correct
8.
Baking bread and cooking an egg are examples of....?
a)
Endothermic processes
b)
Exothermic processess
c)
None of these
9.
Is photosenthysis an Exothermic or an Endothermic reaction?
a)
Endothermic
b)
Exothermic
10.
What type of reaction is shown in the photo?
a)
Exothermic
b)
Isothermic
c)
Endothermic
d)
None of the above
11.
What type of reaction occurs in a hand warmer?
a)
exothermic
b)
endothermic
12.
Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?
a)
It is an exothermic reaction
b)
It is an endothermic reaction
c)
It is made of ice
d)
It is dissolving your mouth
13.
What is an example of exothermic?
a)
firework
b)
ice pack
c)
coal
d)
wood
14.
Which of the following process is exothermic?
a)
Candle was melting
b)
A puddle evaporating
c)
Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide
d)
Water freezing to form ice
15.
Temperature is...
a)
A measure of the potential energy stored in a substance
b)
The same as heat
c)
A measure of the random motions of the components of a substance
16.
Temperature is a measure of average [blank] energy of individual atoms.
a)
heat
b)
potential
c)
mechanical
d)
kinetic
17.
The SI unit of heat and energy is the __________.
a)
calorie
b)
heat
c)
joule
d)
watt
18.
Which reaction feels warm?
a)
endothermic
b)
exothermic
19.
What type of reaction does this picture represent?
a)
endothermic
b)
exothermic
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