Other questions in this quiz

2. How can scientists measure very small forces?

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

3. How many atoms are in our body?

  • 26
  • 1
  • 20
  • 60

4. What is filtration?

  • The separation of an undissolved solid from a mixture of the solid and a liquid/solution
  • Extracting aluminium from its ore bauxite

5. What is paper chromatography?

  • The separation of substances that have different solubilities in a given solvent
  • Coloured paper used to identify a substance's pH levels


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