Graphing Activity Number One (LE/Biology)

**  Note:   The two graphing experiences which follow have been taken from old New York State regents examinations.

[Graphing Set One]

The data table shows water temperatures at various depths in an ocean.

Water Temperatures at Various Depths

Water Depth  (meters)    Temperature  (°C)
50 18
75 15
100 12
150 5
200 4





Using the information in the data table, construct a line graph on the grid, following the directions
below:

-- Mark an appropriate scale on the axis labeled "Water Depth (m).

-- Plot the data on the grid. Surround each point with a small circle and connect the points

Example:   

Problems Based on Graphing Set One

.1. Using a complete sentence, state the general relationship between temperature and water depth.

2.  The approximate water temperature at a depth of 125 meters would be closest to   (1) 15°C
     (2) 8°C   (3) 13°C  (4) 3°C

[Graphing Set Two]

A student counted the total number of leaves in a group of duckweed plants
(Lemna gibba) over a 5-day period. The data collected are shown in the table below.

Using the information in the data table, construct a line graph on the grid provided following the directions below.




-- Mark an appropriate scale on each labeled axis.

-- Plot the data from the data table. Surround each point with a small circle and connect the points.

Example:   

Problems Based on Graphing Set Two

1.   The time it takes for the number of leaves to increase from 15 to 30 is approximately
      (1.) 2.0 days   (2.) 2.3 days   (3.) 2.9 days  (4.) 3.2 days

2.  Using a complete sentence, state what would most likely happen to the production of oxygen 
     by duckweed plants if the intensity and duration of exposure to light were increased.