The Solar System
Earth's Subsystems
Alternative Energy Resources
100
Why do we see different constellations throughout the year in the evening sky?
We see different constellations throughout the year because the earth moves to different points in its revolution.
100
Which subsystem is composed of gases that surround Earth?
Atmosphere
100
Describe an example of Human Environment Interaction.
Human Environment Interaction is how the environment interacts with people, or how people impact the environment. (Examples should reflect this idea.)
200
How long does it take Earth to make one rotation?
24 hours
200
Which subsystem includes all the living things on Earth?
biosphere
200
What is the energy source for solar energy? State one advantage of this alternative energy resource.
Solar Energy: The sun (sunlight) is the source. The advantages include that it is renewable, does not pollute, it is not noisy, and panels can be placed anywhere.
300
When the moon is waning, is it getting bigger or smaller?
Smaller
300
Which subsystem includes the rocks, minerals, and landforms on Earth?
geosphere
300
What is the source for biofuels? State one disadvantage to using it.
Biofuels: Biofuels come from organic materials (biomass) such as plants and animals. The major disadvantage is farmers might stop growing crops for food.
400
What is the New Moon phase?
The New Moon phase is when the lunar cycle begins again, and the moon cannot be seen.
400
Which subsystem consists of all of Earth's water?
hydrosphere
400
Wind Energy: What is one advantage of using wind energy? What is one disadvantage of using wind energy?
Advantages: does not pollute, can bring energy to people in remote parts of the United States Disadvantages: kills birds, is noisy, needs air to generate electricity
500
Why is the length of a shadow shortest during high noon?
The length of a shadow is at its shortest because the sun is directly overhead.
500
Select two of Earth's subsystems and describe how they are interconnected.
Answers will vary; check each student's response.
500
Where does geothermal energy come from? What is one advantage to using it?
Geothermal energy comes from hot rocks deep inside the Earth (people drill deep into the crust to capture the steam.) Advantages: does not pollute, is renewable
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