Surface Area Lab Report
The tablet that was left whole had an average dissolving time of 5minites 12 seconds, the halves had an average of 4 minutes 13 seconds , the thirds was an average of 4minutes 2 seconds and the last tablet, the quarters has the shortest time of 3 minutes 38 seconds
My experiment was repeated three times, i did this as it helps to improve the reliability of my test. The test was as accurate as possible but of course no test is performed perfectly, there are always errors that occur and errors that cannot be helped. To keep my experiment accurate I used the same measurements of water, the same amount of tablets, the same brand of tablets and the same water temperature but some errors I had during my experiment was that when cutting the tablets …show more content…
CONCLUSION:
In conclusion this science assessment was to find out if surface area affects reaction rate, and this experiment proved that surface area in fact does affect reaction rate. My experiment used a berocca tablet that was either cut into sections or left whole, the smaller fractions had a larger surface area as there was more area to cover, the pieces were then put into water to see what sized tablet reacted to the water the fastest. My hypothesis was supported as it was proven that the smaller pieces which had a larger surface area were much quicker to disintegrate in the water.
Obtaining water and minerals from different sources means you need various structures and features to suit each source. For aquatic environments the water and minerals are obtained and absorbed through the surface of the plants whereas for terrestrial plants the minerals and water they need is obtained through the root …show more content…
Teeth help you chew your food, making it easier to digest. Each type of tooth has a slightly different shape and performs a different job. Types of teeth include:
The molars- molars have between 3 and 4 rough cusps that are essential to grinding the food
Premolars are used to chew and grind food. The first premolars appear around age 10 and the second premolars arrive about a year later. There are at least eight premolars in your mouth, two on the upper and two on the lower jaw on each side. Primary molars are also used to chew and grind foods but they roll and crush foods unlike premolars that only chew and grind. Third molars are most commonly known as wisdom teeth, These are the last teeth to develop and some people never develop third molars at all. For those who do develop these, the teeth may cause crowding and need to be removed from the
My experiment was repeated three times, i did this as it helps to improve the reliability of my test. The test was as accurate as possible but of course no test is performed perfectly, there are always errors that occur and errors that cannot be helped. To keep my experiment accurate I used the same measurements of water, the same amount of tablets, the same brand of tablets and the same water temperature but some errors I had during my experiment was that when cutting the tablets …show more content…
CONCLUSION:
In conclusion this science assessment was to find out if surface area affects reaction rate, and this experiment proved that surface area in fact does affect reaction rate. My experiment used a berocca tablet that was either cut into sections or left whole, the smaller fractions had a larger surface area as there was more area to cover, the pieces were then put into water to see what sized tablet reacted to the water the fastest. My hypothesis was supported as it was proven that the smaller pieces which had a larger surface area were much quicker to disintegrate in the water.
Obtaining water and minerals from different sources means you need various structures and features to suit each source. For aquatic environments the water and minerals are obtained and absorbed through the surface of the plants whereas for terrestrial plants the minerals and water they need is obtained through the root …show more content…
Teeth help you chew your food, making it easier to digest. Each type of tooth has a slightly different shape and performs a different job. Types of teeth include:
The molars- molars have between 3 and 4 rough cusps that are essential to grinding the food
Premolars are used to chew and grind food. The first premolars appear around age 10 and the second premolars arrive about a year later. There are at least eight premolars in your mouth, two on the upper and two on the lower jaw on each side. Primary molars are also used to chew and grind foods but they roll and crush foods unlike premolars that only chew and grind. Third molars are most commonly known as wisdom teeth, These are the last teeth to develop and some people never develop third molars at all. For those who do develop these, the teeth may cause crowding and need to be removed from the