Energy
What is energy?
Energy is power.
Why does renewable energy cause less pollution?
There are less emissions being released into the air from creating this type of energy.
What happens if we use too much non-renewable energy?
They can cause lots of pollution and we can run out of this kind of energy.
Why do we need to save energy?
Because it is wasteful to use excess energy. It causes pollution and costs us money.
Define toxic.
Harmful, poisonous
Why is energy necessary for our lives?
We need energy for electricity. We would not be able to use any home appliances or electronic devices without it.
Are renewable energy sources limited?
No, we can keep making more energy from these sources.
Why do we use fossil fuels even though they cause pollution?
They are cheaper to use and take up less space.
What are at least two ways to save energy at home?
We can turn off the lights and turn off devices when not in use.
Define dependent.
Needs help
How does energy make our life easier?
Energy allows us to use electricity, get places faster with cars, buses, trains, and planes.
Name three types of renewable energy.
Solar, wind, hydo (water), and geothermal.
Where do we get most of the energy we use?
From oil, coal, fossil fuels
How do the 3 Rs save energy?
When we reuse things, we don't have to make so many new items. When we reduce our use of things like plastic bags, they do not cause litter or pollution. When we recycle, we can safe energy on creating something new from old materials.
What does consume mean?
To use or eat.
List 5 examples on how you use electricity at home?
I use electricity for the lights, computers, tv, microwave, fridge and vacuum etc.
How does solar energy produce electricity?
What are the advantages to using non-renewable energy?
It is cheap and easy to store.
How can we use energy efficiently? Give two examples
We can use energy only when we need it. We can hang our clothes to dry and not turn on the lights when the sun is out.
Define renewable and nonrenewable resources
Renewable- a substance of economic value that can be replaced or replenished
Nonrenewable- natural substance that is not replenished with the speed at which it is consumed
Before electricity, what did people use to get energy?
People used fires to cook and wind to dry their clothes.
How can we use renewable energy when the weather is bad?
We can store renewable energy when there is lots of sun and wind and use it later.
What are two disadvantages to using non-renewable energy?
It causes pollution and it can run out.
What will happen if we do not try to save energy? Give two examples
We will cause lots of pollution and spend lots of money. Our energy sources can run out.
Define conserve.
To protect (especially an environmentally important place or thing) from harm or destruction