Other questions in this quiz

2. How can scientists measure very small forces?

  • They use probes to detect particles and reposition them (atomic force microscopes)
  • Weights
  • Microscope
  • Magnify Glass

3. What is diffusion?

  • When a gas moves freely from an area of high concentration to low concentration
  • When a gas gives of a smell

4. What is a mixture?

  • An impure substance made from different elements or compounds
  • A pure substance made from different elements

5. Who thought of particles in 1805?

  • John Dalton
  • James Dalton

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