How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
Earth Science Science as a process
Italicized words in chapter 1 section 2
a procedure that is carried out according to certain guidelines; used to test a hypothesis
how close a measurement is to the true value of the thing being measured
the exactness of the measurement
an expression of the amount of imprecision or variation in a set of measurements
a description, representation, or imitation of an object, process, system or concept; they can be rendered mathematically, graphically, physically and computer
a general statement that describes how the natural world behaves under certain conditions
organized and logical approach to scientific problem solving.
group that serves as a standard for comparison with another group
an experiment that contains a control
International System of Units (SI)
common system of measurement for length, mass, temperature and volume. Base 10 system.
the range of values for a set of percentage of measurements.
vapor, steam; air, gas; respiration
related to water
ancient, old or prehistoric