Question

write the required materials procedure precautions and observations in an activity to find relation between resistance and length of the conductor

Answer 1

Answer:

5 slices of bread

5 transparent sealable bags

Gloves

mask

Sticky labels

marker

Magnifying glass

5 - 7 cotton swabs

Lemon juice/water/apple juice/salt/sugar (at least two of these items are required)

Explanation:

We take the cotton swabs and run them over areas which have dust.

We then rub the dust from cotton swab over the first bread slice. We do the same with the other bread slices.

We seal the three bread slices inside three transparent sealable bags and put a sticker on the three bags, and write down using a marker on them. On the first sticker we write "Sample #1 - Dark Closet"; on second write "Sample #2 - Refrigerator", and on the third write "Sample #3 - Under Light" and we keep the first sample in a dark closet, second in a corner of the refrigerator where it doesn't get disturbed, and the third one in an area of the house which is most of the time brightly lit.

Now, we take the remaining two samples. Before we seal them in the bags we add either lemon juice/water/apple juice/salt/sugar. We keep these two samples in a place where they don't get disturbed.

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