Grade 5 Science Review: Conservation of Energy and Resources

Dissipated Energy

Energy that is wasted.

Kinetic Energy

Energy in motion.

Electrical Energy

Different forms of energy turned into electrical energy.

Potential Energy

When energy is not being used yet, but can be used.

Mechanical Energy

Mechanical energy is ALL the energy that an object can make and has because of its motion (kinetic energy) and its position (potential energy).

Chemical Energy

Stored in matter, used when a chemical reaction happens. This is potential energy, not kinetic energy.

Non-Renewable Energy

Energy that can not be used more than once.

Renewable Energy

Energy that can be used over and over again.

Fossil Fuels

Non-Renewable resources that are found by digging deep into the ground.

Hydro Power

Energy that is harnessed from the flow and movement of falling water.

Pollution

A harmful or dangerous addition to the natural environment

Dissipating Energy

Dissipating energy is energy that is wasted.

What is the EnerGuide on household appliances?

The EnerGuide on household appliances shows how much energy the appliance uses.

What is insulation? Why is it important?

Insulation is padding that is in the roof and walls of a house. It is important because it keeps the heat or the cold from escaping the house.

When electricity is used by a lightbulb, what two types of energy are being dissipated.

The 2 types of energy that are unused are thermal energy and sound energy.

What did Einstein mean when he said energy cannot be created nor destroyed, only transformed?

Einstein meant that energy is either potential or kinetic. It is always there, just not always being used.

What are some drawbacks and dangers of using non-renewable energy?

Some drawbacks and dangers of using non-renewable energy are:

• It produces a by-product that pollutes our environment.

• It cannot be re-used.

• Its sources are expected to run out very soon.

• When it’s used up,it could take billions of years to form again.

• The pollution it produces is dangerous to our environment.

What are some ways we can conserve energy in our lives?

Some ways we can conserve energy in our lives are:

• We can read EnerGuide labels to make sure appliances are high efficiency.

• Buy or use an electrical car instead of a gas powered car because they are more energy efficient and they produce less pollution.

• Turn off lights when you are not in the room.

• Use rechargeable batteries instead of disposable ones.

• Leave the tap off when you are not using it.