Choose a task(s) to answer below. Write the number of the task you are answering.
1. Explain what the PURPOSE of the experiment was.
2. Explain the process you went through when 'FINDING OUT' what liquid was the most, or least dense.
3. Explain what happened and why? Useful scientific terms: low density, high density, mass, space, test tube, volume, matter,
Remember to write your first name under your post, and use correct spelling and punctuation. Re-read to ensure you write what you mean to say:)
1.I think the purpose of the experiment was to understand what density is and to show how salt can make water denser :D Aspen
ReplyDeletethe purpose of this was to learn about density and how to measure density. by using different colours of water. in the water there were different amounts of salt. the salt made the water dense. density is measured by how much matter occupies a given amount of space. to find out how dense the water was we mixed in different amounts of salt to the water.
ReplyDelete3. the colours that had high density had to be at the lower parts of the test tube other wise they would penitrate through the colours with lower density :D Aspen
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ReplyDeletelearning about density and how to work out how something is p or d=m/v
ReplyDeleteAnthony
3. Some people successfully filled their test-tubes up while others - like myself - didn't succeed in this task. The reason for this was because you needed to find out the most dense and least dense colour which was all up to how much salt was in the beakers. Say if you put in the colour blue first and then the colour yellow second, if the blue was less denser than the yellow they would mix together. But if you put in yellow first and the blue second, it would most likely work. This is because the yellow (more dense) is trying to get past the blue (less dense).
ReplyDelete1
ReplyDeleteThe puporse of the experiment was to see density between colours. First we had salt in a container and we had pour hot water in it to disolve. Second we put food colouring the colouring was red, blue, green, Yellow.
2. Explain the process you went through when `FINDING OUT` what liquid was the most, or least dense.
ReplyDeleteAs we carried out this experiment, I noticed that some of the colours wouldn't layer. I found out that this had something to do with density. There were four colours: red, blue, green and yellow, some of which had different density levels. I noticed that the yellow and green, blue and yellow, red and green couldn't go together because they kept on mixing. Finally I found out what the colour combination was. The first colour was green, followed by blue, then red. and finally yellow.
1. The purpose of the experiment was to learn about density and how to measure it. We had four different types of hot salty coloured water then we had to put all four dyed water into a little test tube but if the density was lower then the one above it then it would combine with it so you had to figure out which dyed water had more density then the other.
ReplyDelete1. The purpose of the experiment was to find out about density and show how to prove what has higher or lower density. p=m/V.
ReplyDelete2. To find out what liquid was the most dense we had to fill the beakers filled with salt with hot water, dissolve the salt and put food colouring in them. We then used the dropper and gently dropped the liquid into a test tube on top of each other. The denser liquid would sink below all the of the other colours. We figured the water with more salt would be more denser.
By Will
Sarah#3
ReplyDeleteThe colours with the highest density, had to go at the bottom. The one with the lightest density goes at the top, because if one with higher density went over one with a lower density, the higher one would therefore try to get to the bottom, resulting in them mixing.
jason
ReplyDeletethe reson we did the exsperomont is to lern about density and how it works...
1. The purpose of this experiment was to find out which was least dense. Density is a measure of how much matter occupies a given amount of space. It quantified with the ratio of mass per unit volume
ReplyDeleteScientists: p= m/v to measure. Hamish
Cailyn
ReplyDeleteI am answering task 3
In science,we were taught abount density we then were set a task to find the most dense colour out of four.But there was a catch there were different amounts of salt in each container so that it would make the task harder than just knowing how much salt was in each.When doing my own task I could not get the correct colour pattern as I kept putting the lest dense colour {the one with the lest salt} In the wrong area.I learnt that when there was more salt that colour would just sink to the bottom {high density} and the colours with the lest salt {low density} would float to the to.
Nikki,
ReplyDeleteThe process I went through to find out what liquid was the most, or least dense I had to... I put the yellow dye in the test tube first and added the red onto the top of the yellow by slightly tilting the test tube and drizzling it on top. If it mixed together I'd tip it out and start again by putting red in the test tube first because I know that the red is more denser than the yellow. So I kept trying that until I eventually figured out the order. The order of the dyes in my tube was Green, Yellow, Red, Blue.
ReplyDelete2. The process we went through to find the most dence colour was when we tried to layer the colours. So if you put a high dence colour on top of a low dence colour the high dence colur would mix with the low dence colour. This happened because the high dence colour was tring to get to the bottom by going though the low dence colour to get to the bottom of the test tube. But if you put a low dence colour on a high dence colour instead of mixing the colour would 'float' or make a new or another layer on top of the bass colour or colour below.
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ReplyDeleteThe purpose was to see what the density was, if it stayed on the top the density would it be lower, if you where to put green on top of yellow and green suck would yellow have high density?
ReplyDeleteWe found out how to measure the density, density is a measure of how much matter occupies a given amount of space. It's quantified with the ratio of mass per unit volume. (p) stands for density and (v) is for volume
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ReplyDelete1.Keanu:
ReplyDeleteThe purpose of this experiment was to find out the density of the salt
Question 1
ReplyDeleteThe purpose of this experiment is to find out which coloured liquid had the highest density and the lowest density. If we put the coloured liquid that had the lowest density at the bottom and then added another colour that had a higher density on top of it then the colours would just mix, but if we put the coloured liquid that had the highest density on the bottom and then another colour that had a lower density on top of it then it would stay on top of the higher density liquid.
Question 2
The first part of the process is to get three or four glasses, then you put different amounts of salt into each glass, after that you add hot water to all of them one at a time and stir the salt while you add in the hot water. Once all of the salt has dissolved in the glasses you add food colouring to them, all of them have to have different colours. Then EXPERIMENT, get a test tube and a dropper and test which liquid has the highest density by putting them in your test tube carfully one at a time. (Don't forget to slant your test tube a bit when adding the colours.)
Question 3
How did it happen? Well the coloured liquid that had the highest density went at the bottom, then the second highest density layered on top of that one, then the third highest density goes on top of that and finally the lowest density goes on the very top. If you don't put the liquids in the right order then it won't work as the colours would just mix.
Alina
Jamie: 2.To make sure that all colours sat on top of each other first I put different amounts of salt in different beacons:Then I tried red than blue but they made purple. Green and yellow to lime. blue and yellow to green.
ReplyDeleteFinally I got the pattern correct green,blue,red than yellow.(the more salt the more dense it is.)
1. Explain what the PURPOSE of this experiment was....
ReplyDeleteThe purpose was to try make the different colours sit on each other an to be very careful not to mix them.
if the 2 colour mixes in with the first that mains that the 2 colour has more Density or is more heaver.
Karma
Science - What is density? - Izzy
ReplyDeleteQuestion 1. The purpose of this experiment was to experiment with high and low densities of water, the salt acting as the weight in the water. When the liquid with the most amount of salt (the highest density) is layered on top of a liquid with a lower density, the liquid with the most density with push its way to the bottom, causing the solutions to mix. We used food colouring to give us an indication and a visual picture as to what it looks like when low densities are layered on top of high densities.
Question 2. We added different amounts of salt and 150mL of hot water into four beakers, and stirred the water, creating a salt and water solution. As the water was stirred, the salt slowly dissolved, leaving us with a white - ish coloured liquid. We then added a couple of drops of different coloured food colouring to each beaker. We took a test tube from the rack, and added around 1mL of the liquid with the highest density into the tube. We kept adding the ones with the most density into the test tube, tilting it on the side as we did so, to ensure that the pressure of the solution being dropped from a hight did not cause the other liquids in the test tube to mix. We successfully achieved this challenge, and layered the colours on each other, and the results gave us a good education about different densities.
Question 3. As we experimented with layering different densities on one another, some colours mixed, and we had to pour the liquid out. This happened because we layered a liquid with a higher density on top of one with a lower density, and the one with the highest sunk to the bottom.
1.The purpose of this experiment was to sit all the different colours on
ReplyDeletetop of each other from the most dense to the least dense without mixing
the colours up.
caden
Simon:
ReplyDelete1. The purpose of this experiment was to find out which was least dense, dense and which ones would not mix with other colours. density is measured by how much matter occupies a given amount of space. the formula scientists use is p= m/v to measure density.
2. To find out what liquid was the most dense we had to fill the beakers filled with salt with hot water, dissolve the salt by stirring it and put food colouring in them. We then used the dropper and gently dropped the liquid into a test tube on top of each other on the side that way they wouldn't mix together. The denser liquid would sink below all the of the other colours. We figured the water with more salt would be more denser. I also figured the pattern: green, blue, red then yellow