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Chemistry Coursework. Aim: To find out if the thickness of plastic bags is directly correlated to the mass they can hold.
The first 200 words of this essay...
Year 11 Chemistry
GCSE Additional Science
Aim: To find out if the thickness of plastic bags is directly correlated to the mass they can hold.
* Clamp stand
* Five to Seven plastic bags of a variety of thicknesses
* 100g masses
* Two K-nex rods and four K-nex clips
* Two pieces of string, both measuring approximately 15cm
* Vernia Caliper
* Digital balance
1. Select a range of five to seven plastic bags, preferably each of a different make and thickness.
2. Measure three, 3cm x 20cm strips on each bag and cut them out.
3. Measure the thickness of one of the strips from each bag using a Vernier Caliper. Then measure the mass using a digital balance
4. Set up the apparatus of a clamp stand and two K-NEX rods, four K-NEX clips and two loops of string.
5. Wrap approximately 1cm of the plastic bag strip around the centre of one K-NEX rod, and secure in place with two clips. Then secure the other end of the strip around the remaining K-NEX
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