Download Weather - Science

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The Sun warms the Earth,
which warms the air around it,
causing the air to move. Large
masses of air can move and
collide, creating a front. A front
is the boundary between two
different air masses where
certain kinds of weather can
occur.
– Describe the types of air
masses that are colliding at a
cold front.
With a cold front, a large cool air mass will
move into an area and collide with a
warm, moist air mass. The warm air will
move over the cold air mass, and the
moisture in the warm air cools and
condenses, forming clouds.
Describe the difference
between “good” ozone and
“bad” ozone.
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“Good” ozone is found in the stratosphere
and protects the Earth from harmful UV
rays.
“Bad” ozone is found near the surface of
the Earth and causes respiratory
problems and can damage plastics and
other materials.
List & describe the three
types of heat transfer
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• Radiation -A way in which energy is transferred from
place to place in the form of a wave.
– Process by which energy travels across space.
• Convection - The movement heat by currents in
liquids or gases.
– The process of heat transfer through fluids by means of rising
currents.
• Conduction - The transfer of heat energy through a
substance or from one substance to another by direct
contact of atoms or molecules.
– The process of heat transfer through materials and adjoining
substances.
How does the Sun
transfer energy to the
Earth?
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The Sun transfers energy (heat & light) to
the Earth by radiation.
Draw a diagram of the water
cycle – include precipitation,
evaporation, condensation,
percolation (infiltration)
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What helps control how
much of the Sun’s radiation
is absorbed by the Earth?
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The atmosphere
A group of students measured the amount of rainfall received in two
Texas counties over the course of six months in 2001. Their data is
listed in the table below.
Create a bar graph to represent the data, making sure to:
– Graph the data correctly
– Use an appropriate scale for the graph
– Label the vertical and horizontal axes
– Give the graph a title
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The bar graph should show two bars for each of the six
months. One bar represents the data for each county.
The measurements are between 0 and 6 inches, so a
sample scale would indicate that each increment on the
graph represents 0.2 inches. Accept reasonable scales.
Shading or labels should be used to identify the county of
each bar. Inches of rainfall should be labeled for the
vertical axis. A sample title might be "Rainfall Amounts in
Texas During 2001."
Draw a diagram
illustrating convection.
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Illustrate with a
diagram the way heat
moves.
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Why can more water
vapor be present in
warm than in cold air?
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At warmer temperatures, water vapor
molecules move too quickly to condense
into rain or snow.
Trace the path of a drop of water as it moves through the
entire water cycle.
Begin your cycle with water in a liquid state in the ocean
and be sure to include:
– the names of the stages of the water cycle
– the role of the energy from the sun
– the changes in the water's state as it moves through the
cycle
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Beginning in the ocean, solar energy heats the surface water
of the ocean and changes water from a liquid to a gas or
vapor. This process is called evaporation. Once it is in the
atmosphere, the water vapor cools and condenses, which is
the next step of the water cycle, called condensation. The
water vapor condenses back into liquid water where it
collects and falls back to the Earth. This water that falls from
the atmosphere is called precipitation, which is the next step
of the water cycle. Once it lands on the Earth's surface, it
can flow on the surface as runoff, or it can collect in a body
of water or underground in an aquifer. Once it seeps
underground or is collected in a body of water, plants and
trees can soak up some of the water. Through the process
of transpiration, plants evaporate moisture back into the
atmosphere. Water vapor can return to the atmosphere from
plants and animals as well as from evaporation from bodies
of water. Once the water is back into the atmosphere, the
cycle starts all over again.
The Sun warms the Earth, which warms the
air around it, causing the air to move. Large
masses of air can move and collide, creating
a front. A front is the boundary between two
different air masses where certain kinds of
weather can occur.
– Describe the types of air masses that are
colliding at a cold front.
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With a cold front, a large cool air mass will move
into an area and collide with a warm, moist air
mass. The warm air will move over the cold air
mass, and the moisture in the warm air cools
and condenses, forming clouds.