Energy
What happens when hot and cold energy combine?
A layer of vapor forms between them.
Why are flies attracted to trash? What type of animals are they?
Because they think it is a food source, they are vectos.
What does pollution harm the most?
Depletion to the ozone layer.
What is kinetic energy?
Energy in motion.
What causes electrical energy?
Movement of electrical charges.
What happens when gas heats up?
Pressure increases, and particles move quicker.
What is garbage juice mainly used for?
Feeding plants.
What does litter mean?
Purposely throwing away trash in other places than trash cans.
What is potential energy?
Stored energy.
What is electrical energy?
Stored energy in charged particles.
What is the scientific meaning of energy?
The amount of potential a physical system has to change.
What uses the most energy in your house?
Refrigerators.
What mainly causes pollution?
The burning of fossil fuels.
What is sound energy?
The movement of energy through compression waves.
True or False: Electrical energy is an example of kinetic energy.
False.
Can energy be created or destroyed? How or How not?
No, it can only be transformed into one form or another.
About how much trash does one American throw away in one year?
1,048 Pounds.
What are the 7 types of pollution?
Water, air, soil, thermal, radioactive, noise, light.
Natural gas, propane, and coal are examples of _______ energy.
Chemical.
Why does electricity shock you?
It is a quick movement of electrons.
What does a hydroelectric power plant do?
Changes water particles into moving energy.
How does trash turn into energy?
First, it decomposes, then it is turned into a gas, last it is burned.
About how many tons does everybody in the U.
S. waste every year?
229 tons.
True or false: Radiant energy comes from the sun.
False.
Does electricity have heat?
Yes, but very little.