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Year 7 Jelly investigation
By Phoenix Hoyle
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Last updated 8 months ago
5 questions
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4
5
7
2
2
Question 1
1.
What is the aim of your investigation?
To see how ______________________________________affects _____________________________________________
What is your hypothesis?
As the size of the jelly pieces ______________ the time taken for the jelly to dissolve ______________ .
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decreases
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changing the size of jelly pieces
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the time taken for the jelly to dissolve
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increases
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the size of the jelly piece
Question 2
2.
Explain your hypothesis.
For piece of jelly to dissolve the water ______________ have to collide with the __________ particles.
Only the jelly particles on the ____________surface of the jelly can ____________ with the __________ particles.
The jelly particles that are not on the outside cannot dissolve.
If the number of jelly particles that are on the outside increases then the time taken for the jelly to dissolve will decrease.
Smaller pieces of jelly have a larger surface area to volume ratio (more of the particles are on the outside).
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particles
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water
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jelly
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collide
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outside
Question 3
3.
Classify the variables
how much stirring
How much jelly is used
Type of jelly
Size of the jelly piece
time taken for the jelly to dissolve
volume of water
Temperature of water
Independent variable
Dependent variable
Control variable
Question 4
4.
Results table
What will the heading for the first column of your results table be?
_____________________________.
What will be the next column on your results table?_____________________________________________
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how many pieces of jelly
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time taken for the jelly to dissolve
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time taken for the jelly to dissolve (s)
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Surface area of jelly
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rate that jelly dissolves
Question 5
5.
Graph
What will you plot on the x-axis?
_____________________________.
What will you plot on the y-axis?_____________________________________________
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time taken for the jelly to dissolve
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time taken for the jelly to dissolve (s)
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how many pieces of jelly
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Surface area of jelly
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rate that jelly dissolves