Scientific Method
This is an educated guess or a testable prediction, often written as an "If... then..." statement.
Hypothesis
This is the variable that the scientist purposely changes or manipulates in an experiment.
Independent variable
All living things are made of one or more of these basic functional units.
Cells
This type of graph is best used for showing changes over time.
Line graph
This piece of equipment should always be worn to protect your eyes from chemicals or heat.
Safety goggles
This is the first step of the scientific method, where you use your senses to gather information.
Observation
This is the variable that is measured or observed; it "depends" on the changes made.
Dependent variable
This term describes the process by which organisms keep their internal conditions stable, such as body temperature.
homeostasis
This type of graph is best for comparing different groups or categories.
Bar graph
If a piece of glass breaks in the lab, this is the very first thing you should do.
Tell a teacher
This is the step where you summarize your results and state whether your hypothesis was supported or rejected.
conclusion
These are the factors that must be kept exactly the same in every trial to ensure the results are valid.
constants or controlled variables
This is the molecule that carries the genetic code for all living organisms.
DNA
On a standard graph, the Independent Variable is always placed on this axis.
X-axis
You should never do this with chemicals unless specifically instructed to by your teacher.
Taste or smell them
To ensure a test is "fair" and reliable, a scientist should only change this many variables at a time.
One
This group in an experiment does not receive the treatment and is used for comparison.
Control group
A plant leaning toward a window is an example of a living thing responding to a(n) ______.
Stimulus
This type of data involves numbers and measurements.
Quantatative
When smelling a chemical, you should use this motion to bring the scent toward your nose.
Wafting
Unlike a hypothesis, this is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested.
Theory
You notice the grass is wet and assume it rained. This logical interpretation based on prior knowledge is called what?
Infrence
This is the sum of all chemical reactions through which an organism builds up or breaks down materials.
Metabolism
This type of data involves descriptions, colors, or textures rather than numbers.
Qualitative
Long hair, dangling jewelry, and loose clothing should always be _____ before starting a lab.
Tied back/secure