Highcliffe Field Trip
|
How We collected our Data
Firstly we needed to measure the angle of the beach so we split the beach into 3 metres width ways and every 3 metres we would place a metre stick and then another person would hold the metre stick ahead by 3 metres (see diagram to right). Then we went to eye level to the top of the metre stick and pointing the gun clinometer to the top of the stick 3 metres away. We added together all the 3 metre angles to make the over all angle. Also we collected some water to about 1 litre in a 2 litre jug and then collected 10 stones that varied in size (but not the large boulders we encountered). Then we added the pebbles to the jug and then took away 1000ml (1 litre) away from the number to find the volume of all the pebbles together. Then we could dived that number by 10 to find out the average volume of the pebbles. The disadvantages of this is that the pebbles were randomly picked and they could mean that not all sizes of stones are accounted for. B Finally, every 3 metres, we measured the size of 3 random rocks with calipers (see right) but on the beach we encountered very large boulders that had been put there to protect the coast and we used a tape measure instead. We tried to get a large stone, a small stone and a medium stone to make the test more fair. We also used the table below to categorize our pebbles. This is quite inaccurate, though, because it is (to a limit) being judged by opinion. |
Key Words
QUALITATIVE DATA- Data that isn't measured by unit for example a sketch of the beach.
QUANTITATIVE DATA-Data that can be measured by a unit/represented numerically for example the size of the pebbles on the beach.
PRIMARY DATA- Data that you have collected yourself, not from another source for example we collected our own data for the angle of the rise of the beach.
SECONDARY DATA- Data that you haven't recorded yourself but got from another source for example a diagram, picture or a website
RANDOM DATA-Collecting data at a random point using a random data generator we used this by picking random pebbles to measure.
STRATIFIED DATA-Where data is taken from different groups made for example taking a measuring of a big rock, a medium rock and a small rock.
SYSTEMATIC DATA- Data is recorded at equal intervals for example we took data every 3 metres along the beach.
TRANSECT-A transect is a line following a route along which a survey or observations are made for example the beach we used to collect our data from.
QUALITATIVE DATA- Data that isn't measured by unit for example a sketch of the beach.
QUANTITATIVE DATA-Data that can be measured by a unit/represented numerically for example the size of the pebbles on the beach.
PRIMARY DATA- Data that you have collected yourself, not from another source for example we collected our own data for the angle of the rise of the beach.
SECONDARY DATA- Data that you haven't recorded yourself but got from another source for example a diagram, picture or a website
RANDOM DATA-Collecting data at a random point using a random data generator we used this by picking random pebbles to measure.
STRATIFIED DATA-Where data is taken from different groups made for example taking a measuring of a big rock, a medium rock and a small rock.
SYSTEMATIC DATA- Data is recorded at equal intervals for example we took data every 3 metres along the beach.
TRANSECT-A transect is a line following a route along which a survey or observations are made for example the beach we used to collect our data from.