Area and Oasis Blocks

The vegetation surface type affects runoff since it is in contact with the soil. Once the soil absorbs all the water it can hold, the rest undergoes runoff. Through force of gravity, it moves downslope to other areas, carrying soil particles and sediments along. However, more vegetation cover results in less runoff while less cover results in more soil erosion.

The only dependent variable is the time the ice cubes take to melt. The controlled variables are the size of the ice cube, and the room conditions they melted in. Aim: To see which type of ice cube melts faster (the one with or without sugar).

I found out that both of my experiments were off by 0.46 and 0.13 but were remotely

1. For this experiment, what were the independent variable and the dependent variable? What were the constants?

The dependent variable was the percent increase in mass of the dialysis tubing. We can use this to compare how osmosis increases or decreases as solute concentration increases.

The independent variable for the experiment was the paper towels. The dependent variable was the absorbency and strength. The constants for the experiment were the size of the paper towels that were used, the amount of water, the size of the beaker, the size of the cylinder and the amount of the weight.

This experiment has, in fact, proven my hypothesis to be incorrect, after looking through the results, I now understand why. My hypothesis stated that

7. The kinetic graph was correct as my hypothesis. My potential graph did not start in the same position as my data graph.

4. The Independent variable is the dissolved oxygen and the dependent variable is the number of fish observed.

The volume of a small test tube and a thin-stemmed pipet were determined in this section of the lab. Water was poured into a small test tube until the water reached the very top edge of the test tube. The test tube was then emptied into a plastic 25 mL graduated cylinder and volume was measured and recorded into data table 3. A think-stemmed pipet was completely filled with water. Drops were carefully counted and emptied into the empty plastic 25 mL graduated cylinder until the water level reached 1 mL. The number of drops in 1 mL was recorded into data table 3. The thin-stemmed pipet had a total volume of 4 mL and that was also recorded into data table 3.

The independent variable is sugar concentration. This will be changed by using solutions with different amounts of sugar (2%, 6%, 10%).

_An experiment on the effect of surface area to volume ratio on the rate of osmosis of Solanum tuberosum L._

Beetroot cells contain a red pigment, which is stored in the cell vacuole and a vacuole membrane to prevent this leaking out of the cell surrounds it. The outer of the cell is also surrounded by a membrane, which again helps contain the pigment inside the cell. In this experiment I aim to find out the relationship between the leakage of red pigment from a beetroot cell and the surface area. To do this successfully I will need to alter the surface area of the beetroot cells accurately and then measure if any and how much dye is let out. I can hopefully then look at my results and then find a relationship between the two factors and be able to explain exactly why any changes took place.

This experiment is designed to facilitate an understanding of the principles involved when water flows through a pervious material such as soil.

This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved.