Is air a solid, liquid, or a gas?
gas
Is ice a solid, liquid, or a gas?
solid
Is milk a solid, liquid, or a gas?
liquid
Is a tree trunk a solid, liquid, or a gas?
solid
Is water vapor a solid, liquid, or a gas?
gas
Is steam a solid, liquid, or a gas?
gas
Is hydrogen a solid, liquid, or a gas?
gas
_____________ of the earth is covered by water.
three-fourths
____________ is anything that takes up space and has weight.
matter
_____________ are the smallest piece of a substance that still has the qualities of that substance.
molecules
Water is made of hydrogen and ____________.
oxygen
Molecules in _____________ are packed close together.
solids
Molecules in __________ are the fastest-moving molecules.
gases
A ____________ has no shape of its own and does not fill up a fixed amount of space.
gas
Because water has a high ____________, objects will float on it.
surface tension
Water changes to ________ at 32� F.
ice
_______________ causes molecules to move more rapidly.
heat
the ability to do work
energy
a push or pull on an object
force
the force which draws things down toward the center of the earth
gravity
What supplies the energy in steam
heat
What gas makes up most of the air?
nitrogen
How far does earth's atmosphere extend?
1,000 miles
What does the weight of the atmosphere create?
air pressure
What is the process by which liquid water becomes water vapor?
evaporation
What is the process of changing water vapor back into liquid water called?
condensation
Be able to explain the water cycle using complete sentences.
...
Study clouds and be able to identify cirrus, cumulus, and stratus clouds.
...
a rain or storm cloud
nimbus
any form of water that falls from clouds to earth
precipitation
the amount of water vapor in the air
humidity
frozen water vapor formed in clouds
snow
the temperature at which water condenses
dew point
a large body of air that has the same temperature and humidity
air mass
the temperature at which water boils
212� F
frozen raindrops that have been blown back into the cloud to form more frozen layers
hail
a cloud on the ground
fog
Be able to identify and label all state birds in Chapter 5.
...
Is paper a solid, liquid, or a gas?
solid
There is always water ____________ in the air.
vapor
Water vapor that condenses on the grass at night is called__________.
dew
Water in the air condenses on tiny pieces of ____________.
dust in the air
Heat from the sun causes __________________.
evaporation
Solids, liquids, and gases exert _________________.
pressure
Since air has weight and takes up space, air is ______________.
matter
Energy that is stored and ready to use is called ____________
potential energy