Water
What phase change does water go through when it changes from a gas to a liquid? Choices: melting, evaporation, freezing, or condensation
condensation
What object in our solar system has the most gravity? Choices: the sun, the moon, Jupiter, Earth
The sun!
Air pressure __________ as altitude increases. Choices: increases, decreases, stays the same
Decreases
Salinity is the measure of what in the water? Choices: salt, oxygen, water clarity, acidity
Salt
Where does most energy on Earth come from? Choices: lava, the sun, Earth dirt
the sun
What word means 'water clinging to another substance'? Choices: cohesion, surface tension, adhesion or chemical weathering
adhesion
What causes day and night? Choices: the revolution of the earth around the sun, the rotation of the earth on its axis, the revolution of the moon around the earth, light bulbs
The rotation of the earth on its axis
What does the ozone layer protect Earth from? Choices: harmful space gases, harmful solar radiation, bugs, or CO2
harmful solar radiation
Which of the following is NOT one of VA's watersheds:
Gulf of Mexico, Lake Erie, Chesapeake Bay, North Carolina Sound
Lake Erie is not
Gulf of Mexico, Chesapeake Bay, North Carolina Sound are all VA's watersheds
What gas increases the greenhouse effect?
Carbon dioxide, methane, water vapor
What does 'water is the universal solvent' mean?
Water can dissolve MOST substances
Which planets are rocky, small planets and have few moons?
Mercury, Venus, Earth, Mars
Which layer of the Earth's atmosphere do we live in? Choices: stratosphere, mesosphere, troposphere, exosphere
Troposphere
What is an estuary?
A place where salt water and rivers meet (ex: a river runs to an ocean)
How easy it is for an object to lose or gain thermal energy.
Choices: conduction, specific heat, sherbert heat, convection
specific heat
What is surface tension?
Since water molecules cling to each other (cohesion), solid objects can rest on the surface of water.
What causes the Earth's seasons? Choices: the rotation of the earth, the tilt in the earth's axis of rotation, the moon, or the sun getting closer and farther away
The tilt in the earth's axis of rotation
Earth's atmosphere is primarily made of which gas? Choices: oxygen, nitrogen, carbon dioxide, water vapor
Nitrogen
Name 2 biotic and 2 abiotic factors in a watershed
Biotic: plants, bugs, fish, birds, people, water mammals, dead logs, tree branches, etc.
Abiotic: sand, salt, water, sun, temperature etc.
What do we call a current of water/air where hot molecules rise, cool down, then fall back down? Choices: mean current, convection current, conduction current, radiation current
convection current
How does water moderate the climate of the local environment?
Water has a high specific heat. It takes a lot of energy to warm it up or cool down. The air near water will stay warm in the winter, and stay cool in the summer.
What 2 moon phases cause strong (spring) tides? Choices: gibbous, crescent, new, full moon
Full moon and new moon
What source of energy generates weather on Earth?
The sun
What are 2 ways wetlands benefit people?
Slow down floods from storms
Clean pollution from rivers
Provide homes for baby fish, birds, etc
Reduce erosion
What is the greenhouse effect?
Gases such as CO2, methane and water vapor trap the sun's radiation, causing global temperatures to rise.