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Eureka # 21
• What are asteroids made
of?
• What are comets made of?
Answer:
• Asteroids are made of
rock and/or metal.
• Comets are made of ice,
small rocks, dust, and gas.
Eureka # 22
What causes
weather?
Answer:
• The Sun causes an uneven
heating of the Earth’s surface
• Cycling of water in and out of
the atmosphere
• Air masses, ocean currents
Eureka # 23
• Where are tropical zones
located? Draw and label
their locations.
• What type of weather
occurs in these locations?
Answer:
• Nearest the equator
• The temperature is high
because tropical zones receive
direct sun rays all year
Tropic of Cancer
Equator
Tropical Zone
Tropic of Capricorn
Eureka # 24
• Where are the temperate and
polar zones? Draw and label
their locations.
• What type of weather occurs
in each of these locations?
Answer:
• Polar Zones
– located nearest the north and south poles
– temperature is continuously cold b/c
these poles are tilted away from the Sun
• Temperate Zones
– located between tropical and polar zones
– distinct changing seasons
Polar Zone
Tropic of Cancer
Equator
Tropical Zone
Tropic of Capricorn
Polar Zone
Temperate
Zones
Eureka #25
Using the words
EVAPORATION,
CONDENSATION,
PRECIPITATION,
INFILTRATION, and RUNOFF
draw and describe the water cycle.
Water Cycle
1.
Evaporation – liquid water from bodies of water and plants
(transpiration) changes into water vapor and becomes part of the
atmosphere
2.
Condensation – water vapor begins to cool and liquid droplets
collect on dust particles high in the atmosphere, making clouds
3.
Precipitation – once the clouds become heavy enough, solid or
liquid water may fall from the sky as rain, sleet, snow, freezing
rain, or hail
4.
Infiltration – all water that soaks into the ground after
precipitation; this could be used by plants or go to a body of
water
5.
Run-off – all water that is not soaked into the ground after
precipitation eventually flows over land into bodies of water such
as rivers, lakes, etc.
The Water Cycle
Eureka #26
How can warm and cold
fronts be identified on
a weather map?
A boundary between
two air masses is
called a front.
Moving fronts indicate a
change in weather.
COLD FRONT - blue sharp
“teeth” pointing in the direction
of the moving cold air.
WARM FRONT - red
rounded “teeth” pointing in
the direction of the moving
warm air.
Eureka #27
What type of weather is
associated with low pressure?
What type of weather is
associated with high pressure?
Low pressure stormy weather
High pressure fair weather
Eureka #28
In what direction do weather
fronts generally move
across the United States?
Highs and lows tend to travel from
west to east across the United States,
bringing changing weather as they move.
Eureka #29
• What is energy?
• List 6 examples of energy.
Answer:
• Energy is the ability to do
work. Forms include:
–light
–thermal
–chemical
–nuclear
–electrical
–mechanical (i.e., sound)
Eureka #30
• Give an example of one type of
energy changing to another.
Answer:
• Light to chemical in a plant
(photosynthesis)
• Electrical to light when you
turn on a light switch
• Chemical to heat when
you digest food