Beach transects - instruction and record sheet

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Beach transects
Instructions and record sheet to be completed by each group for Hypothesis 2
A transect is a line, along which you can collect data. Your group will choose a number of places
along each beach to complete a transect.
1) After choosing a suitable place, place the tape measure along a line from the sea shore to the
back of the beach.
2) Start at the sea, look up the slope of the beach and measure the distance in metres up to a
point where the slope angle first changes. This is your first section of the beach
3) For that distance, measure the angle of the slope using the clinometer and record the grain
size.
4) Repeat these steps every time the slope angle changes (your teacher will explain)
5) You might record on the table any other information you need.
Have a look at the completed table below and the cross-section graph drawn from its results
Name of beach Starfish Bay
Site 1
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
No plants, waves
reach here at high
tide
No plants, some
high tides reach
here
Section 1
0-50m
Section 2
50-108m
Section 3
2˚

6˚

3˚
108-125m
Section 4
Some gravel sized
particles as well.

1˚
125-130m
Mangrove plants
here.

With this information you will be able to draw a cross-section like the one below when you get back
to the classroom.
Transect 1
20
Height (m)
15
10
Section 3
Section 2
Section 1
Section 4
5
0
0
10
20
30
40
50
60
70
80
90
Distance (m)
Name of beach ………………………………….
Site ……..
100
110
120
130
140
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
1
2
3
4
Name of beach ………………………………….
Site ……..
Particle size
Beach section.
Distance in m.
1
2
3
4
Angle of
slope
Fine
sand
Medium
sand
Coarse
sand
Other information?
pebbles
rocks
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