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Top Stories published by countdown.education in October of 2016
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2016
October
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Ernest Wolfe
in
countdown.education
Oct 13, 2016
4 Steps to Naming Compounds in Chemistry Nomenclature
1. Is it an Ionic Compound or a Molecular Compound?
It is
Ionic
if it has a
metal
(an element on the left or middle of the periodic table)
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469
2 responses
Ernest Wolfe
in
countdown.education
Oct 27, 2016
6 Types of Symbiotic Relationships EXPLAINED (with examples)
1. Competition (-/-)
Definition
: the struggle of individuals to obtain a shared limiting resource
Competitive Exclusion Principle
: Two different species cannot…
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697
6 responses
Ernest Wolfe
in
countdown.education
Oct 13, 2016
10 Acts Leading to The American Revolution
1. Navigation Acts (1660–1663)
What they did
: supported
British mercantilism
by
requiring
all American trade to go through English
ports, on English ships, and to be
for the benefit of Britain
rather than the…
Read more…
202
3 responses
Ernest Wolfe
in
countdown.education
Oct 28, 2016
5 Tests to Classify a Substance as Molecular Polar, Non-Polar, Ionic, Metallic, or Covalent Network
1. Does it have a high melting point?
If a substance has a relatively low melting point (below 400ºF), then it…
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124
1 response
Ernest Wolfe
in
countdown.education
Oct 9, 2016
5 Differences Between The Scientific Revolution and Enlightenment
1. 16th and 17th Century (Scientific Revolution) vs. 18th Century (Enlightenment)
The Scientific Revolution came first and
laid the
…
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116
1 response
Ernest Wolfe
in
countdown.education
Oct 29, 2016
6 Molecular Geometry Structures and What You Should Know About Them
1. Linear
3 total atoms: 1 central atom and
2 surrounding atoms
No Lone Pairs:
no electrons around the central atom that are not part of a bond with another…
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10
Ernest Wolfe
in
countdown.education
Oct 28, 2016
5 Keys to Darwin’s Theory of Natural Selection
1. Individuals have a lot more offspring than they should
Species tend to produce an excess of offspring, and since resources are limited, this means that…
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14
Ernest Wolfe
in
countdown.education
Oct 28, 2016
5 Processes That Make Evolution RANDOM
1. Mutations
Definition
: A random change in someone’s genetic code due to a mistake while copying DNA
Example
: You probably have at least a hundred mutations in your genome, meaning you have new genes…
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4
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Chromosomes
Bottleneck Effect
Evolution
Environmental Science
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Darwin
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Ernest Wolfe
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Ernest Wolfe