Essays Tagged: "water particles"

Osmosis investigation

Aim: To find out how osmosis occurs and differentiates using various concentrations of water.Variables:The variables which we could investigate are:*Size of the potato chip. This will cha ... e higher the capacity*The concentration of the solution. The higher the solution is concentrated in water the more water particles there will be in the solution*Different potatoes. This will affect th ... ill be in the solution*Different potatoes. This will affect the actual potato chip as the amount of water in the potato would be different in each potato as they were harvested in different areas and ...

(12 pages) 54 0 3.7 Apr/2004

Subjects: Science Essays > Biology

The Atom

atomic theory of matter around 1803. Whilst studying meteorology, Dalton concluded that evaporated water exists in air as an independent gas. Solid bodies can't occupy the same space at the same time ... Solid bodies can't occupy the same space at the same time, but clearly water and air could. If the water and air were composed of discrete particles, Dalton thought that evaporation might be viewed a ...

(4 pages) 46 1 5.0 Jul/2004

Subjects: Science Essays

Investigating Osmsosis - GCSE Coursework.

Planning.Osmosis is the diffusion of water molecules across a semi-permeable membrane. Diffusion is the movement of molecules from an are ... from an area of high concentration, to an area of low concentration. So, Osmosis is the movement of water molecules from an area where there are lots of water molecules to an area where there are few ... easingly high amount of weight. I think this because the higher the concentration in salt, the more water particles will move through the potato cell's semi-permeable membranes to try and balance the ...

(3 pages) 20 0 1.0 Oct/2005

Subjects: Science Essays > Biology

Determination of Bulk Density and Water Content of a Cohesive Soil

ObjectiveThe objective of this experiment is to determine the bulk density and water content of a wet, cohesive soil.IntroductionThe bulk density of a soil is simply the total mas ... of a soil is simply the total mass per total volume. This means the soil sample is weighed with the water still in the sample and then divided by the total volume it occupies giving the bulk density. ... a soil is important as it can reveal how much total dry material you have when you relate it to the water content of the soil sample. Finding out the water content of a soil is important as it can aid ...

(3 pages) 32 0 5.0 Nov/2006

Subjects: Science Essays > Engineering > Civil Engineering


is is a special kind of diffusion when a partially permeable membrane separates two solutions, then water will pass from the weak solution to the strong solution. The result with the largest weight in ... is because the potato is the strong solution because it contains a weak sugar concentration and the water in the test tube is the weakest solution. The water particles moved from the weak solution (wa ...

(1 pages) 7 0 0.0 Feb/2008

Subjects: Science Essays > Biology