Scientific Method
An experiment that contains only one independent variable.
What is a controlled experiment
A well-tested explanation of experimental data.
What is a scientific theory
located underneath the nosepiece there are usually 2 to 4 of them
What are the objective lenses
The data obtained by experimentation will be either _____ or ______ data.
What are quantitative or qualitative
The ____ should clearly depict what the graph is about.
What is the Title
Is the part of an experiment that is controlled or predictable.
What is the independent variable
What are statements based on repeated experimental observations that are proven, reliable & consistently observed to be true
What is a scientific law
Use visible light and a system of lenses to magnify tiny objects.
What are Light Microscopes
Is obtained by making measurements which result in reproducible sets of numeric information.
What is Quantitative data
The ______ is what changes in response to the independent variable. It is placed on the vertical Y axis.
What is the dependent variable
What changes in response to the independent variable
What is the dependent variable
A field of natural science , Example: Biology, Chemistry, Geology, etc.
What is pure science
Can magnify objects 10,000,000 times or more, Cannot be used to view living specimen, passes a beam of electrons through the sample.
What are Transmission Electron Microscopes (TEM)
Is obtained by observation or approximations.
What is Qualitative data
The ________ is the variable which is controlled or predictable in an experiment. It is placed on the horizontal X axis.
What is the independent variable
A short, definitive statement that should be written in an “If . . . then . . .” format.
What is an hypothesis
This field of science uses the knowledge from pure science to solve practical problems, example: Engineering,Forensics, etc.
What is applied science
Produce 3-dimensional images, scans the surface of the specimen with a beam of electrons, Can magnify up to ~500,000 times
What are Scanning Electron Microscopes (SEM)
The main units of measurements for length, volume and mass
What are meter (m), liter (L), & kilograms (kg)
In order to know where to plot data points, ____must be used on both axes. ____ typically start at 0 and increase based on set intervals like 2, 5, 10, 20, etc. The ____ will be dictated by your data.
What is a Scale
The 6 steps in the scientific method include
What are state the problem, conduct research, form an hypothesis, perform an experiment, analyze the data, and reach a conclusion
This must always: Be totally supported by data, Be verified by repeated testing, Be subject to review by peers.
What is a Scientific Theory
To compute the total ___ of a microscope, multiply the power of ___ of the lens by the power of ___ of the eyepiece. Examples:
20 (objective lens) x 10 (eyepiece) = 200X
40 (objective lens) x 10 (eyepiece) = 400X
What is Magnification
______ indicate multiples or fractions of units of measurement. ________ give specific meaning to numbers.
Used together, _______ and ______ provide information about ‘how much’ and ‘what’ was measured.
What are Prefixes and
Units
Graphing is used to display data that is collected during a controlled experiment. A graph must contain 5 major part which include:
What is the Title, the Independent variable (X axis), the Dependent variable (Y axis), the Scales for each variable, & the Legend