Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/10

Click to flip

10 Cards in this Set

  • Front
  • Back
model
a person or thing that is a good example of something and is copied
energy
the capacity for doing work
entire
whole
pollution
harmful materials such as certain chemicals, gases, and wastes that make the air, water, or soil dirty
future
happening in the time after the present
produce
to make or create something
What are two examples of fuels that we burn to make electricity?
gas, coal, oil
What are two cleaner sources of energy that the article talks about?
sun, wind
Why are scientists looking for new ways to make electricity?
Fossil fuels pollute.
What is the main idea of the selection?
Sun and wind power can provide clean energy.