ISA - Vitamin C and DCPIP

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  • Created by: titch121
  • Created on: 08-10-13 17:24
The Independent Variable
The independent variable is the one that is changed by the scientist.
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The Dependent Variable
The scientist focuses his or her observations on the dependent variable to see how it responds to the change made to the independent variable.
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The Control Variable
The one you keep constant
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What is a Preliminary experiment?
It is a short experiment done before the real experiment to see if the experimental method works.
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How much pepper juice do u add?
2ml
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What coulor should the solution turn after adding drops of DCPIP?
Blue
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What is the risk assessment?
Wear goggles, if you get DCPIP on your skin wash it off quickly.
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How big is the risk?
Low risk
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What will you control?
The amount of pepper juice you put in the test tubes.
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What is better to use when putting the pepper juice into the test tubes, a pipette or a syringe? why?
A syringe is better to use because a syringe is exactly 1ml so u will need do fill the syringe 2 times to get the amount you need whereas if you use a pipette it would be harder to get the exact measurements.
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Other cards in this set

Card 2

Front

The Dependent Variable

Back

The scientist focuses his or her observations on the dependent variable to see how it responds to the change made to the independent variable.

Card 3

Front

The Control Variable

Back

Preview of the front of card 3

Card 4

Front

What is a Preliminary experiment?

Back

Preview of the front of card 4

Card 5

Front

How much pepper juice do u add?

Back

Preview of the front of card 5
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