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Cambridge Secondary (7-9). Stage 8. Science. Learner's Book - Unit 3: Forces and energy - Question 136

Cambridge Secondary (7-9) · Unit 3: Forces and energy

Question 136

Which of these will result in diffusion? Write the letters for all the correct statements.
  1. Adding milk to coffee.
  2. Adding sand to water.
  3. Adding salty water to pure water.
  4. Allowing gas from a cylinder to escape into the air.
  5. Throwing small pieces of rock into the air.
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