Matter
The smallest unit of matter
atom
electrons in the outer most shell of an atom are called
Valence electrons
The subatomic particles (the parts of an atom.)
protons, neutrons, and electrons.
give 3 examples of precipitation
water, hail, sleet, snow
Humans exhale what into the atmosphere
CO2
A group of atoms held together by chemical bonds
molecule
How many electrons can fit on the second shell of an atom
8
This tells the number of protons in an atom.
atomic number
What are the states of sublimation from start to finish
solid to gas
Plants inhale what from the atmosphere
CO2
Has a definite volume but not a definite shape
liquid
bonds that share electrons are called
covalent
The charge of an electron.
negative
What is the main difference between evaporation and transpiration
location from start
Nitrogen makes up what percent of the atmosphere
78%
When two or more different atoms are joined together
compound
water molecules are attracted to each other by which bonds
hydrogen
Atomic mass - Atomic number gives what?
neutrons
Describe how condensation happens and what the states are from start to finish
gas vapor cools in the atmosphere and turns to liquid forming clouds
Nitrogen fixing involves what to steps
ammonification, nitrification
A substance that cannot physically be broken down into smaller parts
element
In a water molecule, oxygen has a partial charge of what
negative
The inner part of an atom, composed of protons and neutrons.
What is the nucleus.
name 5 liquid bodies of water
ocean, ponds, river, creek, runoff, groundwater
name the 4 macromolecules carbon is involved with (why its needed)
proteins, carbs, lipids, nucleic acids