Scientific Method & Tools
Intro to Marine Science
Physical Oceanography
Properties of Water
Miscellaneous
100
The step in the Scientific Method in which an educated guess is made and can be tested.
Hypothesis
100
This Greek philosopher described many forms of marine life and recognized the function of marine organisms’ body parts.
Aristotle
100
The mid-oceanic ridges are a chain of submarine ______?______ that rise from the ocean floor.
Volcanic mountains / volcanoes
100
Water striders are able to seemingly "walk on water" due to this cohesive property of water's elastic tendency.
Surface Tension
100
What percentage of the earth is covered in water?
About 71 %
200
The step in the Scientific Method in which a hypothesis is tested is called _________.
Experiment
200
This naturalist sailed on the HMS Beagle from 1831−1836.
Charles Darwin
200
Active Margin and Passive Margin sites exhibit varying intensities of geological activity.
Of the two, which type of site is found along the West coast of the U.S. and is more likely to experience intense activity such as earthquakes and volcanoes ?
Active Margin
200
Dew drops sticking to blades of grass is an example of which property of water?
Adhesion
200
What is the average salinity of the ocean?
____?___ ppt
35 ppt
300
Factors that may affect the outcome of an experiment are called _________.
*hint* examples are: Independent and Dependent
Variables
300
This tool is used to map seafloor depths and formations using sound waves.
Sonar
300
About 200 million years ago, Pangaea was a single supercontinent surrounded by a single world ocean, named __________.
Panthalassa
300
The transparency of water is strongly affected by suspended or dissolved material churned within the water. Which property is this?
Turbidity
300
The name of one harmful algal bloom. (hint* named after the color/species of algae* )
Red Tide
400
A tall, narrow cylindrical tube used for measuring volumes of liquids in a lab is called __________.
Graduated Cylinder
400
Name one ancient civilization we discussed that had detailed knowledge about marine life and navigation.
Pacific Islanders and Phoenicians
400
Scientists hypothesize that the plates move mainly because of __________.
Slab Pull
400
The majority of dissolved particles in the ocean is made up of ______________ ? (*hint NaCl*)
Sodium Chloride aka Table Salt
400
What is the name of this tool that measures ocean turbidity?
Secchi Disk
500
The main function of this lab
tool is to extract, transport and dispense liquid samples in exact measurements.
Pipette
500
_______ and _______ had extensive knowledge of near-shore organisms in the Mediterranean Sea.
Name at least *one* for points
Ancient Greeks
Ancient Romans
500
A tectonic plate can contain at least one type of crust but can be composed of both.
Name both types of crust.
* must have 2 correct answers to receive points *
- continental crust
- oceanic crust
500
If you were to put a freshwater fish into saltwater, it would be a ________ solution, causing the fish to shrivel and dehydrate.
HYPERTONIC
500
what is the pH of saltwater?
pH = 8