Easter chocolate eggs are
gooood …no matter how
Hypothesis
Hypothesis 1
Hypothesis 2
Does changing the state of
matter change the mass of the
object?
Problem
We want to know if the mass of ten
chocolate Easter eggs will change after
melting them.
Hypothesis
5 Students

If we take the same
amount of chocolate
Easter eggs, take their mass
and melt them, we think
that melting them will
change their mass.
19 Students

If we take the same
amount of chocolate
Easter eggs, take their mass
and melt them, we think
that melting them will
NOT change their mass.
Materials
•One bag of Resse’s Chocolate eggs.
•A scale
•A cup
•Microwave to melt the chocolate Easter eggs.
Procedure
1. Measure the mass of ten unwrapped
chocolate Easter eggs in the cup on
the scale and record.
2. Melt the chocolate Easter eggs in the
cup in the microwave for one
minute.
3. Measure the mass of the melted
chocolate Easter eggs with the cup.
4. Conduct multiple trials (3).
Procedure
Variable
Independent Variable: We changed the state of matter
of the chocolate Easter eggs from solid to liquid by
adding heat.
Dependent Variable: The mass of the chocolate Easter
eggs.
Control
Everything else stayed the same: same
type and amount of chocolate Easter
eggs. We used ten to conduct each of
the three trials.
We used the same procedure each time.
Results
Students collected the information and wrote it
in their Science journals.
Results
Trial 1
Trial 2
Trial 3
Before melting
(Solid)
144 gr.
146 gr.
145 gr.
After melting
(Liquid)
144 gr.
146 gr.
145 gr.
Results
We
conducted
3 trials and
measured
the mass
before and
after
melting the
Easter eggs.
Conclusion
We learned that changing the state of matter of the Easter chocolate
eggs from solid to liquid did not change the mass of the ten eggs.
The hypothesis 2 was correct while hypothesis 1 was incorrect.
After the second trial, the students from hypothesis 1 started to
change their prediction based on the data.
We learned that matter can change its form due to changes in
temperature while its mass remain the same.
Bibliography
Changing states of matter-Brainpop Jr.
3rd Grade Science textbook, Mc Graw-Hill
www.schoolforchampions.com/science/matter_states_changi
ng.htm
Resee’s website.