Surface area

An Experiment To Investigate The Relationship Between Surface Area and Rate Of Reaction Introduction The rate of reaction (reaction velocity) may be defined as the rate of change of concentration of a stated reactant or product. The rate of a reaction is found by measuring the amount of a reactant used up per unit of time or the amount of a product produced per unit of time. A reaction can be made to go faster or slower by changing a number of factors. In order for a reaction to occur certain things

Surface Area to Volume Ratio and the Relation to the Rate of Diffusion Aim and Background This is an experiment to examine how the Surface Area / Volume Ratio affects the rate of diffusion and how this relates to the size and shape of living organisms. The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen

[Type text] [Type text] [Type text] _An experiment on the effect of surface area to volume ratio on the rate of osmosis of Solanum tuberosum L._ BACKGROUND A cell needs to perform diffusion in order to survive. Substances, including water, ions, and molecules that are required for cellular activities, can enter and leave cells by a passive process such as diffusion. Diffusion is random movement of molecules in a net direction from a region of higher concentration to a region of lower concentration

To investigate the relationship between surface area : volume ratio and heat loss. INTRODUCTION: The aim of this experiment is to investigate and find the relationship between heat loss (of water) and surface area to volume ratio of animals. To investigate this, we are going to use three flasks of different volume (as the equivalent the animals) and thus different surface areas filled with water. BACKGROUND: Surface Area : Volume Ratios We will be using the following formula for calculating

temperature, with an aim to reach this “thermal equilibrium”, whatever the temperature may be. The larger the surface area, means there can be more “paths” from the sides of the body that are capable of releasing this heat particles, and reaching thermal equilibrium faster. This is what happens when a hotter body is subjected to a colder one. Research Question: How does the surface area to volume ratio

Single celled organisms are small meaning that their surface area is big compared to their volume. These organisms have a large surface area to volume ratio which means that they can obtain different substances by diffusion through their relatively large plasma membrane. The substances have to diffuse only short distances so they can diffuse at a faster rate and meet the organism’s needs. Multi-cellular organisms have a much smaller surface area to volume ratio. Many of their cells are not in direct

Question: Does the amount of surface area affect how fast it takes for a rock” to be weathered? Hypothesis: If we use 3 types of “rocks”, we think that the one that the smallest will be weathered away the fastest because it is the smallest in size than than the other “rocks”. Materials: 2 Beakers 3 Alka-Seltzer Tablets Room Temperature Water Timing Device Sheet of Paper Pencil Controlled Variables Amount of Water Temperature of Water Volume of “Rock” (Alka-Seltzer) Type of “Rock” (Alka-Seltzer)

higher terminal velocity.) The surface area can affect the motion of the falling object because it is has more air resistance pushing against it. Because there is more air resistance pushing against a larger object, it will fall so because it is making the downward force (gravity) weaker since there is now a larger force counteracting that first force. An object with a larger surface area will fall slower (have a smaller velocity) because it means there is a large area for air to come into contact

Discussion The results show, if more of the bath bomb surface area is exposed ,the volume of the balloon is bigger, thus supporting hypothesis that the more crushed the bath bombs is (more surface is exposed), the larger the circumference of the balloon is. Graph one agrees with the hypothesis and shows an increase in the balloons volume, as more of the bath bombs surface area is exposed. The result show that if there is less of the bath bomb surface area is exposed, the volume of the balloon will be smaller

increased or decreased. The signs of a chemical reaction include a colour change, temperature change, formation into a gas and odour change. The rate of reaction can be increased by increasing the temperature, concentration and the expansion of the surface area which is explained by collision theory collision theory. Collision theory is when the kinetic energy increases the chance that the atoms and molecules collide. Kinetic energy is an energy which a body possesses by virtue of being in motion. By