Intro to Earth Science

Frage	Antworten
mass	The amount of matter (atoms) in an object.
classification	The grouping of items based on similarities.
Observation	Using the five senses to interact with the environment.
percent deviation	The amount of error in a measurement.
cyclic change	Events occurring in a predictable pattern.
dynamic equilibrium	A balance between opposing forces.
volume	The amount of space an object takes up.
inference	An educated guess. An hypothesis.
interface	A boundary across which energy is exchanged.
rate of change	How much something changes over time.
density	How tightly packed the atoms are in an object.
Experimental Design	Describes the manner in which you test your hypothesis through experimention
Independent Variable	this variable is changed by the researcher and observations are made to see if the change has an impact on the dependent variables.
Dependent Variables	These variables change as a result of the independent variable. . This is where your DATA comes from.
Controlled Variables	These are Variables in the experiment that you keep the same
Control Group	this group does not receive the independent variable. This group is used to compare to as the “normal” or “baseline”.
Experimental Groups	this group receives the independent variable.
Trials	the # of times you replicate the experiment.
Data:	anything that can be observed/measured in an experiment.
Quantitative Data	anything that can be measured with numbers
Qualitative Data	Observations not related to quantities or numbers
What is the formula for finding the the volume of a cube?	L x W x H
How do you find the volume of an irregularly shaped object?	Put water into a graduated cylinder Measure the volume of the water place object in the cylinder, remeasure the water level subtract the first level from the second level

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