Vocabulary
To make something different
What is change?
What is an energy source that never runs out?
Renewable resource
What does elevation mean?
What is height above sea level?
What is based on real evidence?
What is a fact?
What is something that comes from two different sources?
What is hybrid
What is not as good in a hybrid car?
It's slower?
Process of breaking down or wearing away
What is erosion?
What are two good renewable sources of energy?
Wind and solar power
The answer to a problem
What is a solution?
What is harmful substances in soil, air, or water?
What is pollution?
What is an energy source that never runs out?
What was a positive effect of trains and automobiles?
People could travel faster.
What sent electricity through a wire to send messages?
What is the telegraph?
What are the two reasons the energy source changes from wood to coal?
Do mountains increase or decrease over time from erosion
decrease