OUR EXPERIMENT
WHAT ARE WE EXPERIMENTING
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Well today we are going to investigate how fast a vitamin C tablet will dissolve in water whilst using different surface areas! Here is how you can do this!!
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MATERIALS!
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Vitamin C tablet pack x1
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Beaker or CUP (500mL) x4
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Stopwatch or your phone! x1
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Small bowl x1
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Water (400~450mL) x 4
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Template x1
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Tissue
The experiment will be looking at the rate of reaction and how surface area contributes to the acceleration or declaration of the process.
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Begin the experiment by taking out 4 Vitamin C tablets from the pack and placing them on the table.
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Place one of the vitamin C tablets aside for the time being.
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Take 4 500ml cups and fill them up with water to about 450ml. (If you don’t have a measuring cup try to fill up the cup to about ¾.
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With the help of an adult, divide one of the Vitamin C tablets into halves (½) and put both pieces aside
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Begin by placing the first whole tablet into a glass/cup of water, start the timer and let the reaction run until the vitamin C tablet completely dissolved
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Stop the timer and record the time when the tablet has fully dissolved in the water.
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Take the third tablet and divide it into quarters (¼) and place the four pieces to the side
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With the help of an adult, use a knife or spoon to crush the fourth Vitamin C tablet until it is fully crushed and place the powder on a card or tissue paper.
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Repeat steps 7 and 8 for the rest of the tablets, (two halves, quarters and crushed tablet).
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Record the difference in time between each of the tablets for how long they took to dissolve in water.
METHOD!
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HAZARDS!
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Seek approval from a parental guardian before using any Vitamin C tablets or any medical material for experimentation.
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Take caution if working with any glass equipment such as, glass cups, containers or jugs.
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Make sure an adult or peer is present while performing steps 4 and 5 as it includes the use of a knife.
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You may want to request the help of a peer or adult when performing steps that require timing of the Vitamin C tablet.
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Our video is on the first webpage, here it is again where you can follow the experiment along with us!!
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