PDF chapter test TRY NOW

Solubility experiment:
  1. Collect samples of some solid substances such as sugar, salt, chalk powder, sand and sawdust.
  2. Take five glasses or beakers.
  3. Fill each one of them about two -thirds with water.
  4. Add a small amount (spoonful) of sugar to the first glass, salt to the second and similarly, add small amounts of the other substances into the other glasses.
  5. Stir the contents of each of them with a spoon.
  6. Wait for a few minutes.
  7. Observe what happens to the substances added to water.
  8. Note your observations as shown in table.
Substance
Disappears in water/ does not disappear
Salt
Sugar
Sand
Chalk powder
Sawdust