Question

2. Some students investigated diffusion by carrying out some experiments with substances
spreading out into water. One group investigated the diffusion of different types of
coloured fruit syrup. They used different types of fruit syrup and diluted them with water.
Here are their results.
Time taken/seconds
105
Type of fruit syrup
orange
lemon
blackcurrant
111
247
mango
132
a.
Name two variables they had to keep the same.
The oty of fruit syrup
The oty of water
[1]
b.
How would you display these results? Explain why you have chosen this method.
_[1]
c.
Name a difficulty the students may have when measuring the time taken for
diffusion.

Answer 1

Explanation:

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