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Scientific Method
Microscopes
Chemistry of Life
More Chemistry
Even More Chemistry
100
What is a logical procedure for choosing an answer to a question?
The Scientific Method
100
A microscope cosisting of two lenses, or two sets of lenses is a
Compound microscope
100
Matter is
Anything that takes up space and has mass
100
Atoms with the same number of protons, but a different number of neutrons are called
Isotopes
100
Define energy
The ability to do work
200
Before the actual experimement begins, the scientist must....
Define the problem
200
The slide is set on the ________________ of the microscope
Stage
200
A pure substance that can't be broken down any farther
Element
200
An atom with a charge is called an
Ion
200
A measure of randomness is
Entropy
300
Activities used to test a hypothesis are ......
Experiment and Survey
300
In a compound light microscope, one set of lenses is located in the _________________, also mcalled the eye piece.
Ocular
300
The smallest unit of an element
Atom
300
When atoms SHARE electrons, they form a
Covalent Bond
300
The two kinds of energy are
Kinetic and Potential
400
The ideal scientific exoeriment is
A controlled experiment
400
Why do electron microscopes have a much greater capacity for resolution?
Electrons are smaller than light waves so more electrons can pass through the specimen being viewed at one time.
400
An atoms nucleus is composed of
Neutrons and protons
400
When atoms TRANSFER electrons, they form an
Ionic Bond
400
State the First Law of Thermodynamics
Energy can not be created or destroyed
500
The simple, testable statement that predicts the results expected from a research study
Is a hypothsis
500
The best known microscopist is
van Leeuwenhoek
500
Give the charges of neutrons, protons, and electrons
Neutral Positive Negative
500
When two or more atoms combine, they form a
Molecule (same element) Compound (dif elements)
500
State the Second Law of Thermodynamics
Entropy of the universe must always increase