WorksheetsExothermic and Endothermic reactions
Total questions: 13
Worksheet time: 8mins
Name
Class
Date
1.
In an exothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
2.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
3.
What type of reaction occurs in a hand warmer
a)
exothermic
b)
endothermic
4.
Is photosynthesis an exothermic or endothermic reaction?
a)
Endothermic
b)
Exothermic
c)
Neither
5.
Baking bread and cooking an egg are examples of....?
a)
Endothermic processes
b)
Exothermic processess
c)
None of these
6.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
7.
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
8.
Alka-seltzer in water is an example of a
a)
Endothermic reaction
b)
Exothermic reaction
c)
Dissolving a salt
d)
physical change
9.
When you freeze water, it turns to ice. What kind of change is this?
a)
Physical
b)
Chemical
10.
Sugar dissolves in water. This is an example of....
a)
Physical Change
b)
Chemical Change
11.
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
12.
After you mix two substances together, a new substance forms. This is an example of:
a)
Physical Change
b)
Chemical Change
13.
What instrument would you use to detect an endothermic or exothermic reaction?
a)
triple beam balance
b)
ruler
c)
thermometer
100 %
