Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
scientific method
|
organized, logical approaches to scientific research
|
|
observation
|
using the senses of sight, touch, taste, hearing, and smell to gather information about the world
|
|
measurment
|
an important means of gathering information
|
|
hypothesis
|
a possible explanation or solution to the problem
|
|
experimentation
|
a scientific procedure carried out according to certain guidlines
|
|
variable
|
a factor in an experiement that can be changed
|
|
controlled experiemnt
|
an experiement set up to test a variable
|
|
earth science
|
the study of the earth and of the universe around it
|
|
career focus
|
a special feature that appears in such unit of this book, offers detailed information about careers in earth science
|
|
geology
|
the study of the origin, history, and structure of the solid earth and the processes that shape it
|
|
oceanography
|
the study of the earth's oceans
|
|
meteorology
|
the study of the earth's atmosphere
|
|
astronomy
|
the study of the universe beyond the earth
|
|
space probes
|
Pioneer, Voyager, Galileo, and Ulysses
|
|
geosphere
|
the solid earth
|
|
hydrosphere
|
the earth's water
|
|
atmosphere
|
the gases surrounding the earth
|
|
ecology
|
the study of the complex relationships between living things and their environment
|
|
ecosystem
|
a physically distinct, self-supporting system
|
|
oikos
|
greek word meaning "house"
|
|
biosphere
|
the largest ecosystem
|
|
photosynthesis
|
the process in which plants in the rain forest use sunlight to produce food
|
|
pollution
|
the contamination of the environment with waste products or impurities
|
|
biodegradable
|
waste products that can be broken down by microrganisms into harmless substances that can be used by other organisms
|
|
theory
|
a hypothesis or a set of hypotheses that is supported by the results of experimentation and observation
|
|
scientific law
|
is a rule that correctly describes a natural phenomenon
|
|
spectrum
|
a display of colors
|
|
wavelength
|
the distance from the crest of one wave to the crest of the next
|
|
elements
|
a substance
|
|
bright-line spectrum
|
the series of colored lines
|
|
doppler effect
|
the apparent shift of wavelengths of energy emitted by an energy source moving away from or toward an observer
|
|
spectroscope
|
an instrument that contains a prism which splits starlight into a spectrum of different colors and wavelengths
|
|
galaxies
|
a large system of stars
|
|
background radiation
|
low levels of energy
|
|
big bang theory
|
the explanation of the origin of the universe
|