2nd Quarter - Science Part 2

It is a type of energy that doesn't use fossil fuel but depends on a nonrenewable resource called uranium.

• Wind energy
• Nuclear energy
• Solar energy
• Hydroelectric energy

What is used in nuclear reactors to produce electricity and to power some ships and submarines?

• Coal
• Natural gas
• Solar power
• Uranium

What are the characteristics of nuclear energy?

• it doesn't pollute the air with gases or soot, however, uncontrolled nuclear energy is very dangerous

• it pollutes the air by burning coal, sending soot and ash into the atmosphere

• it doesn't use fossil fuel but depends on a nonrenewable resource called uranium

What are some uses of nuclear energy?

• it generates electricity

• it is used to power some ships and submarines

• it is used to operate cars

What are some benefits of nuclear energy?

• Some benefits of nuclear energy include low greenhouse gas emissions, zero carbon emissions, high energy density, and reliable energy source.

• High risk of accidents and radioactive waste disposal
• Limited fuel supply
• High cost of construction and maintenance

If anthracite is the cleanest coal, why is it not used more often?

• Because it is the dirtiest type of coal
• Due to its abundance and low cost
• Because it is not as efficient as other types of coal
• Anthracite is not used more often because it is relatively rare and more expensive to mine compared to other types of coal.

Why is nuclear energy considered a nonrenewable resource?

• Nuclear energy is considered nonrenewable because it relies on uranium, which is a finite resource.
• Nuclear energy is considered nonrenewable because it is environmentally friendly.
• Nuclear energy is considered nonrenewable because it is constantly replenished.
• Nuclear energy is considered nonrenewable because it relies on solar power.

This type of renewable energy is produced as water flows from the reservoirs and turn turbines The turning of turbines generate electricity.

• Wind energy

• Hydroelectric energy

• Solar energy

• Nuclear energy

How does hydroelectricity work?

• The atoms of uranium are split in the nuclear reactor

• Flowing water is directed towards and used to spin giant turbines

• Mechanical energy is generated when the turbines spin and is converted to electrical energy using generators

• The electrical energy flows to powerlines, and from there to consumers as needed.

• The electricity is harnessed from the energy of the sun.

What is a renewable resource that uses reservoirs?

• Coal
• Petroleum

• Hydroelectric energy

• Nuclear energy