Create an account
The systematic study of materials and sources in order to establish facts and reach new conclusions.
the process of gathering information about events or processes in a careful, orderly way
a statement made in advance that expresses the results that will be obtained from testing a hypothesis if the hypothesis is supported; the expected outcome if a hypothesis is accurate
A decimal system of units based on the meter as a unit length, the kilogram as a unit mass, and the second as a unit time
the science and technology of building electronic circuits and devices from individual atoms and molecules
A long-range plan covering one topic through multiple lessons and integrating the learning of skills and concepts for various subject areas including reading, writing, mathematics, science, social studies and the arts.
A composition book with graph paper that contains a journal for reflection purposes, and a scientific notebook for individual lab data collection.
marking the text
Highlighting, underlining and/or annotating the text to focus students on reading for specific purposes.
a statement that describes what scientists expect to happen every time under a particular set of conditions
a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept
To capture all the most important parts of the original story, but express them in a much shorter space, and in the readers own words.
The extent to which the scores in a data set tend to vary from each other and from the mean.
all the digits that can be known precisely in a measurement, plus a last estimated digit
A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.
the apparent displacement of an object as seen from two different points that are not on a line with the object
a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
a galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
a galaxy shaped like a round or flattened ball, generally containing only old stars
cells made of several layers of light-sensitive materials which convert sunlight directly into electrical energy
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores.
a variable whose values are independent of changes in the values of other variables
the outcome factor; the variable that may change in response to manipulations of the independent variable
The ongoing process of discovery in science; the diverse ways in which scientist study the natural world and propose explanations based on evidence they gather.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together