Chapter 1 Flashcards
seismologist
geologist who studies earthquakes
volcanologist
geologist who studies volcano
paleontology
geologist who study fossils
biological oceanographers
study the plants and animals that live in the ocean
physical oceanographers
study physical features of the ocean
Chemical oceanographers
steady amounts of natural and human-made chemicals in the ocean
describe four special areas of oceanography
oceanography, physical oceanography, biological oceanography, geological oceanography and chemical oceanography
John Trefry
oceanographer who studies the ocean floor in a mini-sub called Alvin
Black smokers
black chimneys on the ocean floor that spew black clouds of minerals
hydrothermal vents
A crack in the ocean floor that releases a very hot water from beneath the earth surface
what do you astronomers study
stars, planets, asteroids and everything else space
what cartographers do?
make maps
meteorologists
they warn when a meter is coming
Howard Bluestein
he predicts when tornadoes are likely to form
astronomy
The study of the universe
special branches of Earth science
environmental science, ecology, geochemistry,
environmental science
The study of how humans interact with the environment
ecology
A person that studies a community of organisms and their nonliving environment
geochemistry
it combines the study of geology and chemistry.
Seismosaurus hallorum
one of the largest dinosaurs
Scientific methods
A series of steps followed to solve problems
controlled experiment
experiment tests only one factor or variable at a time
steps of scientific methods
- ask questions
- form a hypothesis
- test the hypothesis
- analyze the results
- draw conclusions
- communicate results
Why do they have to questions?
asking a question helps focus the purpose of an investigation
why do they communicate results?
this way scientist share with others what they have learned. Science depends on the sharing of in formation
what is a physical model?
it’s a model that you can touch
what is a mathematical model?
it’s a model of made up of mathematical equations
what is a big bang theory?
and explanation of the structure of the universe
what is a theory?
an explanation that ties together many hypotheses and observations
The information that scientists gather by using models can help support a theory or show it to be wrong. models can be changed or replaced
what is the meter?
The basic unit of length in the SI
symbol, m
What is volume?
is the measure of the size of a body or region in three-dimensional space
no volume of a liquid is often given on liters. letters are based on the meter
A cubic meter (1 m3) is equal to 1,000 L.
what is mass?
A measure of the amount of matter in an object
what is temperature?
A measure of how hot or cold something is
what is area?
A measure of the size of a surface or region
what is density?
The ratio of the mass if a substance of the volume of the substance
density= mass
volume
all nine safety symbols
a. eye protection
b. clothing protection
c. hand safety
d. heating safety
e. electric safety
f. sharp object
g. chemical safety
h. animal safety
i. plant safety
