Earth History
How do you find the RELAVTIVE AGE of a rock layer?
law of superpostion
Oxygen
Name the three types of subatomic particles and their charges.
Proton- +
neutron- /
Electron- -
What does it mean that water is Polar?
the molecule has a charge
has a positive side and a negative side
Nonliving pathogen
Virus
How do you find the ABOSOLUTE age of a fossil?
Carbon dating
Half-life
How are ocean organisms classified?
How they move
What makes up the mass of an atom?
protons and neutrons
the nucleus
Water sticking to water
Cohesion
something that causes disease
When did a large number of new species appear in the fossil record?
Cambrian Explosion
by amount of light they receive.
Explain how reactivity changes as you go through the Periodic table.
Most reactive are on the left, least reactive on the right. Goes down as you move left to right.
Water sticking to other substances
adhesion
reproduces with spores
Fungi
Place the order of geologic times in the correct order from longest to shortest.
Era, Period, Eon, Epoch
Eon, Era, Period, Epoch
Name the 3 different types of ocean organisms.
plankton, nekton, benthos
Vertical columns on the periodic table
Groups/ Families
It's polar and dissolves so many things.
Killed with antibiotics and reproduces by binary fission
bacteria
Explain how the Law of Superposition is used to determine the age of rock layers.
Older layers on the bottom, youngest layers on top
What INCREASES as you travel down through the water column?
Pressure
Horizontal rows on the periodic table
Periods
Explain the pH scale
1-14
7 is neutral
1-6 is acid
8-14 is base
Explain how antibiotic resistance occurs.
bacteria become immune to the overuse of antibiotics