Science - Mixture and Dissolving experiment

Today in science we did an experiment to see how long it takes for something to desolve in water. First when we got into the science class we did a pre-test on quizlet about mixing and separating for our experiment that we did afterwards. When we started the experiment this is what we had to do.

First we got the equipment ready before we did the experiment.

Equipment:

- A big beaker

- Spatula

- Sugar

- Water

Aim: To find out how long it takes for the sugar to desolve in different situations

Then we did the experiment.

This experiment has four parts to it so you can test the speed that it takes to dissolve and to see the dissolving rate.

Method: 

1. Put 50mls of cold water into the big beaker and put one spatula of sugar into the beaker and start a timer and stir consistently until the sugar dissolves

2. Put 50mls of hot water into the big beaker and put one spatula of sugar into the beaker and start a timer and stir consistently until the sugar dissolves

3. Put 50mls of cold water into the big beaker and put one spatula of sugar into the beaker and start a timer then wait until it dissolves (DO NOT STIR)

4. Put 50mls of hot water into the big beaker and put one spatula of sugar into the beaker and start a timer then wait until it dissolves (DO NOT STIR)

Results: These times are the total and average times for all the groups in our class.

1. Total: 274sec Average: 54sec

2. Total: 119sec Average: 29.75sec

3. Total: 381sec Average: 76.2sec

4. Total: 819sec Average: 163.8sec

Our results:

1. For the first experiment we got 59sec

2. For the second experiment we got 25sec

3. For the third experiment we got 90sec

4. For the fourth experiment we got 360sec

Discussion:

Our results made sense because the one that was the fastest combined two things that speed up the time of dissolving. This is because when you add heat and stir it add speed to the matter and it starts to dissolve.

The results also show that the one with nothing that affects the time it takes to dissolve will end up as the slowest.

We started with sugar and water and at the end we ended up with sugarwater

Here are the photos of the equipment we used.

Sorry I didn't take any photos when we were doing the experiment it was because we were having to much fun doing the experiment so we forgot.