Atoms
Subatomic particles that make up the positively-charged nucleus of an atom
Protons and neutrons
Shared valence electrons result in this type of bond
Covalent
A long-term change in the whole Earth's average climate and weather
Global climate change
The reason human civilizations settled by rivers
Valence electrons
An atoms ability to attract (want) electrons
Transfer of valence electrons results in this type of bond
Ionic
Factor that has had the largest impact to climate
Human activity
Fossil fuels are this type of resource
Non-renewable
The number of valence electrons possible in the first shell
2
The left side of the periodic table
Metals
Number of atoms in the product must match the number of atoms in the reactant
Balanced equation
The feature that helps stabilize temperature by balancing the amount of sunlight reaching Earth
Atmosphere
The development of civilizations is influenced by the availability of this feature
Natural resources
The number of valence electrons possible in the second shell
8
The right side of the periodic table
Non-metals
The coefficient that can balance the following equation:
_____ C6H6 + 15 O2 --> 12 CO2 + 6 H2O
2
Water and land do this with the suns energy
Absorb
Planting the trees increases the amount of ground cover. This causes the amount of erosion to decrease. This change then causes increased ground cover.
Positive feedback
The lightest of the subatomic particles
Electrons
The group that will bond with a single group 7 element to satisfy the octet for both elements
Group 1
Sodium and chlorine are an example of this type of bond
Ionic
Reduction in this due to melting of glacial ice, can lead to further warming of the atmosphere
Reflected sunlight
Solar power is this type of resource