AIM:
The Aim of this experiment is to compare two different ways of folding filter paper, by measuring the time it takes to filter a solution.
The independent variable is, how we fold the paper.
The dependent variable is, the time it takes to filter the water through.
Control variables are, Amount of water, Amount of sand, Temperature of the water. Not stirring. Size of funnel and filter.
My hypothesis is that fluted paper will filter faster than folded conical paper.
The equipment needed,
– 2 Funnels – 2 beakers – 2 stirring rods -sand – 2 sheets of filter paper -2 conical flasks -2 timers – water
Method
- Put a funnel in each conical flask
- Fold one of the pieces of filter paper into the conical shape. Fold the paper in half into a semicircle, then in half again. Open the folded paper out into a cone shape.
- Fold another piece of filter paper into the fluted shape. Fold the paper in half into a semicircle, then in half again, as you did before with the conical paper. Fold the paper once more, then open it out to a semicircle. Fold along each of the dotted lines below – the bold lines are the existing folds.
- Place each piece of filter paper into a funnel. Use a small amount of water to dampen the paper
- Place a spoonful of sand in one of the beakers, and add around 100mL of water to it. Repeat for the other beaker. Try to have the same amount of water in both beakers. This will ensure that the test is fair.
Discussion, Folded vs Conical.
Conical,
What went badly in the experiment? It was incredibly slow, and I’m not sure if it’s meant to be that way. But it was terribly slow.
How could we fix that next time? Maybe the amount of sand that the water had to filter through. Because if there were mounds of sand, it’ll take DECADES until you have a full cup of water.
What is a suspension? A mixture of a fairly measured solid in a liquid.What is a solution? The liquid in the mixture being dissolved.
This was a table of everyone’s results below.
