Aquatic Science Unit 2
The official SI unit for temp. is ___
Kelvin
A pH reading of 7 means that the water is ___
Neutral
Does reading info on the internet make it true?
No because anyone can post anything on the internet
Everything west of the ___ is in the western hemisphere
Prime meridian
An advertisement for a new weight loss pill states that based on a study participants are guaranteed to loose 10 pounds in 30 days. This is an example of:
Promotional material
An advertisement states that you should buy their luggage because when tested against other brands, it proved to be the most durable. This is n example of:
Promotional material
The river is brown is an example of ___ data
Qualitative
What is the function of a compass rose on a map?
Shows which way in north, east, south, and west on the map
Everything below the equator is in the ___
Southern hemisphere
What is the definition of median?
The number in a data set that is exactly in the middle
When it comes to scientific data, remember, "When in doubt ___"
Throw it out
___ describes the amount of space an object takes up
Volume
What is a nautical mile?
_One nautical mile is equal to about 1.852 km -A nautical mile is a special unit of measurement used in air and sea travel -One nautical mile is equal to about 1.15 miles
What is the equator?
an imaginary line around the earth that is the same distance from the north pole to the south pole, represents 0° latitude.
What is a census?
data collected from every member of a group or population
What is quantitative data?
data that is expressed in numbers
When giving directions in terms of longitude do you say east/west or north/south?
east/west
Which microscope has the highest magnification?
electron
What is a buoy?
flotation devices in the water that are often used as markers
What is the SI base unit for mass?
kilogram
What is the SI base unit for length?
meter
When giving directions in terms of latitude, do you say east/west or north/south?
north/south
What is the gold standard of scientific research?
peer-reviewed journal
What does the term prime meridian refer to?
represents 0° longitude and runs through Greenwich, England
A ___ is easier and cheaper to obtain, but a ___ is more accurate
sample; Census
Which number represents a moderate negative correlation between variables?
-0.65
What are NOT some water parameters included in a water kit?
-Appearance, carbon levels -color, taste, elasticity
What kind of info. are textbooks good for?
-Basic info on a subject -Info on scientific laws
What is true about mass?
-Mass is the amount of matter that makes up an object -Weight depends on gravity, mass is the same no matter where -Mass is measured in kilograms
The process of trilateration includes:
-Record your data points -calculate the distance from each satellite -find four satellites above the receiver
DART buoys detect ___
-Tsunamis -Earthquakes
Which number represents the maximum positive correlation between variables?
1
If you are 5'8" tall, how many meters tall are you?
1.73m
GPS receivers use ___ satellites
27
How many total satellites are in the GPS system?
27
When talking about measurements what is a conversion?
A change from one form to another form, or one unit to another unit
What does the term parallel refer to?
A latitude above or below the equator; runs parallel to the equator
When talking about measurements, what is dimensional analysis?
A method of converting one unit into another unit using ratios and conversion factors
What is the GPS?
A system of satellites that orbit the earth and transmit distances from the locations of the satellites to a GPS receiver.
What is a map?
A visual representation that shows how different aspects of an area are related by the size, distance, and direction
A pH reading between 1-6 means that the water is ___
Acidic
What is the definition of mean?
An average of a data set
What is latitude?
An imaginary horizontal line that measures how far north or south a location is from the equator
What is longitude?
An imaginary line that measures how far east or west a location is from the prime meridian
What does the term meridian refer to?
Another word for longitude
___ is a two dimensional measurement that describes the amount of space the surface of an object occupies
Area
a pH reading between 8-14 means that the water is ___
Basic
The unit of temp. most used by scientist is ___
Celsius
Why is it important to keep your data safe?
Conclusions are made based on data, if the data is bad or there is not enough, the conclusions will not be very accurate
Taking a measurement of an object and finding that it is 23.5 meters is considered ___ data.
Continuous
What is the SI base unit for volume?
Cubic meter
What is a sample?
Data collected from a select group of members
What is discrete data?
Data collected in counting individual points, or when whole numbers are involved
What is continuous data?
Data value that falls withing a range
Counting five herons is an example of ___ data.
Discrete
The imaginary line around the earth that is the same distance from the north pole and south pole is ___
Equator
What is data?
Facts that are collected and used for analysis
If you find research that says the opposite of numerous other studies or if the research is someone's opinion, such as information on a blog, it is probably:
Fiction
What does GIS stand for?
Geographical Information System
What does GPS stand for?
Global Positioning System
