Definitions
Think Like a Scientist
Let's Talk Experiments
Chemistry of Life
Love that Chemistry
100
This is an intellectual activity, encompassing observation, description, experimentation and explanation of natural phenomena.
What is Science
100
If you were given a pill that looked identical to the experimental pill but did not contain any active ingredient...you were given this...
What is a Placebo
100
This is an explanatory hypothesis for natural phenomena that is exceptionally well supported by the empirical data. It has withstood the test of time and is unlikely to be altered by any new evidence
What is a Theory
100
This is what we call a substance that cannot be broken down chemically into any other substance
What is an Element
100
Name the (3) types of basic bonds we have discussed and their strength
What are: (A) Covalent- Strong (B) Ionic- Strong (c) Hydrogen- Weak
200
The study of living things.
What is Biology
200
An experiment that makes it possible to decisively determine whether a particular hypothesis is correct.
What is a Critical Experiment
200
In an experiment, this group of subjects are treated identical to the experimental group-with one exception....they are not exposed to the treatment. Name the group...
What is the Control Group
200
Name the 3 main basic particles in an atom
What are Protons.Electrons and Neutrons
200
Properties of water (A) Bugs can walk on water due to this property of water and (B) Water can reach the top of a 300 foot tree without a pump due to this other property of water
What is (A) Surface Tension (B) Cohesion
300
The irrational belief that actions or circumstances that are not logically related to a course of events can influence its outcome.
What is Superstition
300
A hypothesis that states a lack of relationship between two factors.
What is a Null Hypothesis
300
The characteristics of an experimental system that are subject to change and can affect the outcome of an experiment- we attempt to minimize any differences in these.....
What are Variables
300
In the Periodic Table the top left number of an element (A) Is called what? (B) It represents what?
What is (A) The Atomic Number (B) The Number of Protons found in the nucleus of the atom
300
Acids and bases: PH 7 is neutral: (A) If a fluid has more H+ ions then it is considered this name (B) If a fluid has more OH- ions then is called this name
What is (A) an Acid (B) a Base
400
Knowledge that is based upon experience and observations that are rational,testable and repeatable.
What is Empirical Knowledge
400
A proposed explanation for an observed phenomena
What is a Hypothesis
400
In this experimental design the subjects do not know which treatment (if any) they are receiving. (A) Name the experimental design (as in X experimental design) (B) Name the experimental design in which neither the subjects nor the scientist knows who is receiving the treatment
What is (A) Blind Experimental Design (B) Double Blind Experimental Design
400
This is the name for the combined mass of the atom's protons and neutrons noted in the Periodic Table
What is the Atomic Mass
400
These chemicals can quickly absorb excess H+ and and release H+ to counter increases in OH- . They act to resist changes in PH and are called.....
What are Buffers
500
This method is used through a process of examination and discovery
What is the Scientific Method
500
Name the 5 basic steps of the scientific method. (missing or mis-naming a step is considered incorrect, they can be in any order)
What is: (1) Make observations (2) Formulate hypothesis (3) Devise a testable prediction (4) Conduct a critical experiment (5) Draw conclusions and make revisions
500
Name the gold standard experimental design (hint it has 3 main features)
What is the Randomized, Controlled, Double-blind Experimental Design
500
A charged atom is called...
What is an Ion
500
Name the four types of macromolecules essential to the building and functioning of living organisms
What are (1) Carbohydrates (2) Lipids (3) Proteins (4) Nucleic acids
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