Arial
15
ic
5
2
b. Reason
a.
Condition to be
held constant
...
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Chemistry, 08.03.2021 16:20 amuijakobp78deg
Arial
15
ic
5
2
b. Reason
a.
Condition to be
held constant
A student wants to design a controlled
experiment to solve the following
problem:
1.
I will not
2.
When placed in a freezer,
water or cold water reach 0°C faster?
The student plans to place two
containers with equal masses of water
(one hot and one cold) in the same
freezer in the classroom.
a. List three conditions the student
should keep constant for the
hot-water and cold-water setups
when planning this experiment.
[3]
b
For each condition you name,
give a scientific reason why the
condition needs to be the same
for both the hot-water and
cold-water setups. [3]
Please write your responses in the
table on the right,
3.
speaker notes
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