Chemistry
A bond between two or more molecules
Compound
What watershed do we live in?
Chesapeake Bay
What does a barometer measure?
Air Pressure
What percentage of energy from the sun is absorbed by the surface of the Earth?
50%
Name the planets in order from closest to furthest away from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What atomic particle holds compounds together?
Electrons
Name three abiotic and three biotic factors you would find in a wetland.
Abiotic: Water, minerals, rocks, soil, temperature, sun, etc.
Biotic: Plants, animals, algae, fungi, etc.
In what atmospheric layer does weather occur?
Troposphere
What is the difference between convection, conduction, and radiation?
Convection: Heat transfer through circulation of a liquid or gas
Conduction: Heat transfer through touch
Radiation: Heat transfer through rays
Explain the difference between the heliocentric model and the geocentric model.
Heliocentric: Sun at center
Geocentric: Earth at center
How many electrons can be in the second orbit?
The high ground that separates two watersheds is called a...
Divide
What type of fronts occur when cold air pushes warm air out of the way?
Occluded Front
What is the greenhouse effect?
Energy from the sun becomes trapped in the atmosphere and is used to heat the Earth.
What are the phases of a lunar cycle, in order?
New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third (last) quarter, waning crescent, new moon
What are the four main parts of an atom? Name and define them.
Proton: positively charged particle
Electron: negatively charged particle
Neutron: neutrally charged particle
Nucleus: contains the protons and electrons
What are the five tributary rivers that feed into the Chesapeake Bay?
Susquehanna, Potomac, Rappahannock, York and James
What causes wind?
Explain the difference between thermal energy and heat transfer.
Heat transfer is the movement of heat from one thing to another while thermal energy is the energy responsible for the temperature of the object.
What is the difference between a comet, meteor, and asteriod?
Comet:made of ice and dust; has a "tail"
Meteor: small piece of rock that enters earth's atmosphere
Asteriod: rocky object that orbits the sun
An electron on the outer shell is called a...
Valence Electron
Explain the difference between adhesion and cohesion
Adhesion: when water molecules stick to molecules of other substances
Cohesion: when water molecules stick to other water molecules
What tool measures wind speed
Anemometer
Name a similarity and difference between infrared and ultra violet light.
Similarities: Invisible, part of the light spectrum
Differences: Different wave lengths, different effects on humans (heat vs. skin damage)
The Earths axis is tilted at an angle of ___ degrees, which causes the changing seasons.
23.5