Other questions in this quiz

2. electrons have .... charge?

  • some charges
  • negative charge
  • no charge
  • positive charge

3. what shape is the earth?

  • square
  • almost spherical
  • sphere
  • cylinder

4. why do the tectonic plates move?

  • becasue of convection currents in the mantle that are caused by radioactive decay
  • because of the world heating up
  • because of global warming

5. There are about .... different elements from which all substances are made?

  • 100
  • 50
  • 60
  • 2000

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