Eureka # 21 What are asteroids made of? What are comets made of?
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Transcript of Eureka # 21 What are asteroids made of? What are comets made of?
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Eureka # 21• What are asteroids made of?
• What are comets made of?
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Answer:
• AsteroidsAsteroids are made of rock and/or metal.
• CometsComets are made of ice, small rocks, dust, and gas.
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Eureka # 22
What causes weather?
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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
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Eureka # 23
• Where are tropical zones located? Draw and label their locations.
• What type of weather occurs in these locations?
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Answer:
• Nearest the equator
• The temperature is high because tropical zones receive direct sun rays all year
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Tropic of Cancer
Tropic of Capricorn
Equator
Tropical Zone
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Eureka # 24• Where are the temperate and
polar zones? Draw and label their locations.
• What type of weather occurs in each of these locations?
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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
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Tropic of Cancer
Tropic of Capricorn
Equator
Tropical Zone Temperate Zones
Polar Zone
Polar Zone
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Eureka #25Using the words
EVAPORATION, CONDENSATION, PRECIPITATION,
INFILTRATION, and RUNOFF
draw and describe the water cycle.
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Water Cycle1. 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.
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The Water Cycle
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Eureka #26
How can warm and cold fronts be identified on
a weather map?
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A boundary between two air masses is
called a front.
Moving fronts indicate a change in weather.
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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.
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Eureka #27What type of weather is
associated with low pressure?
What type of weather is associated with high pressure?
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High pressure - fair weather
Low pressure -
stormy weather
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Eureka #28In what direction do weather
fronts generally move across the United States?
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Highs and lows tend to travel from
west to east across the United States,
bringing changing weather as they move.
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Eureka #29
• What is energy?
• List 6 examples of energy.
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Answer:• Energy is the ability to do work. Forms include:–light –thermal–chemical –nuclear –electrical –mechanical (i.e., sound)
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Eureka #30
• Give an example of one type of energy changing to another.
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Answer:
• Light to chemical in a plant (photosynthesis)
• Electrical to light when you turn on a light switch
• Chemical to heat whenyou digest food