a. Continental shelf
b. Continental slope
c. Abyssal plain
Name and put on your drawing the following: seamount, guyot, rift valley, canyon, trench, and oceanic ridge. Compare the depths in the oceans with the heights of mountains on land.
Requirement 7 a: Make a plankton net. Tow the net by a dock, wade with it, hold it in a current, or tow it from a rowboat.
* Do this for about 20 minutes. Save the sample. Examine it under a microscope or high-power glass. Identify the three most common types of plankton in the sample.
|Made and used a plankton net|
|Made models of a volcanic island|
Requirement 7 c: Measure the water temperature at the surface, midwater, and bottom of a body of water four times daily for five consecutive days.
* You may measure depth with a rock tied to a line. Make a Secchi disk to measure turbidity (how much suspended sedimentation is in the water). Measure the air temperature. Note the cloud cover and roughness of the water. Show your findings (air and water temperature, turbidity) on a graph. Tell how the water temperature changes with air temperature.
Oceanographic research ship
Oceanographic institute, marine laboratory, or marine aquarium
Write a 500-word report about your visit.
* May be done in lakes or streams.