Nonrenewable Resources
Lilly learned that fossil fuels contain a lot of energy. Why are fossil fuels considered nonrenewable resources?
a.Fossil fuels are essential to civilization
b.Fossil fuels cannot be replaced fast enough for future use
c.Fossil fuels are easily renewed
d.Fossil fuels are alternative energy sources
b.Fossil fuels cannot be replaced fast enough for future use
Which is where geothermal energy comes from?
a. inside earth
b.The sun
c.Wind turbines
d.Hydroelectric dams
a. inside earth
The act of saving, protecting, or using resources wisely is
a.Reservation
b.Generation
c.Conservation
d.Production
c.Conservation
Time, ____________, and materials are often criteria that are considered at the start of the design process.
money
Energy can change from one form to another. Which can change mechanical energy into electrical energy?
a.A switch
b.An electromagnet
c.A transformer
d.A generator
d.A generator
Geothermal power plants use the _______ from the Earth’s interior to generate power
a.Heat
b.Water
c.Wind
a.Heat
Which of the following is NOT an advantage to renewable energy?
a.Solar power is abundant as a resource
b.Hydroelectric dams block rivers and streams
c.Biomass energy uses waste products to create energy
d.Wind energy can be generated day and night
b.Hydroelectric dams block rivers and streams
A ___________ is developed at the end of the engineering design.
a. materials list
b. prototype
b. prototype
Solar energy is an alternative energy that come from the __________
sun
Which are renewable resources?
a.Fossil fuels
b.hydroelectricity
c.Wind energy
d.Copper
b.hydroelectricity
c.Wind energy
Which statement is NOT true about nuclear energy?
a.Nuclear energy is created using fossil fuels
b.Nuclear energy is a nonrenewable resource
c.Nuclear energy is used to generate electricity
d.Nuclear energy waste may damage the environment
a.Nuclear energy is created using fossil fuels
Scientists are designing a new car that runs on renewable energy sources. How would a prototype be used during the design process?
a. To show the final design
b. to change the original design
c. to collect data about the design
d. to show how fossil fuels are used
c. to collect data about the design
Why is hydroelectric power a renewable resource?
The water does not get used up or run out. Once the water leaves the dam it goes back in a circle to the lake, river, or ocean again.
Energy from running water is used to generate
a.hydroelectricity
b.Geothermal energy
a.hydroelectricity
Many human activities affect the ecosystems of a river, including farming, logging, mining, and fishing. Using a river for hydroelectric power also affects a river ecosystem. The dam slows the flow of water in the river, causing the temperature of the water to change. Also, certain types of fish that swim upstream to reproduce cannot get past the dam. A large pool of water, called a reservoir, forms when the dam slows the flow of water. The reservoir floods areas that are habitat for birds and mammals.
What are TWO changes to the environment caused by a hydroelectric power plant?
1. the temperature will change in the water
2. Fish cannot get past the sam
3. Sometimes water floods and hurts the bird and mammals
You are developing a way to keep the liquid inside a mug hot. What kind of tool can you design to slow down the energy transfer away from the mug?
Example: A cover can be used to slow the energy transfer away from the mug. The materials can be ceramic or rubber to keep the heat inside.
Many human activities affect the ecosystems of a river, including farming, logging, mining, and fishing. Using a river for hydroelectric power also affects a river ecosystem. The dam slows the flow of water in the river, causing the temperature of the water to change. Also, certain types of fish that swim upstream to reproduce cannot get past the dam. A large pool of water, called a reservoir, forms when the dam slows the flow of water. The reservoir floods areas that are habitat for birds and mammals.
How do these changes affect living things?
1. Fish cannot have babies if they cannot swim upstream with other fish.
2. Flooding will hurt birds and mammals in that area
3. Slows down water and changes where animals move, eat, and hide