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Teacher prompt
Key questions
Questions
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  • What happens when you cover the end of a syringe and push the plunger down?
  • What happens when you let go of the plunger?
  • Why do you think that happens?
  • How should the plungers be set up so the air can move back and forth between the two syringes?
  • What do you think will happen if one syringe is a different size?
  • Do you think the size of the syringes affects how far the plungers move?