Soap Dispenser

 

★ Can you describe what’s happening?
★ Why do you think this is happening?
★ How do you know that?
★ What do you think is happening in the dispenser that turns the liquid soap to foam
★ How could you turn liquid soap to foam?
★ Can you think of any other liquids you can change to foam? How are they similar to the liquid soap? How are they different?
★ Can you think of any liquids that can change to solid?  How could you make that happen?
★ Can you think of any liquids that can change to gas?  How could you make that happen?
★ Why do you think the manufacturer developed this dispenser to provide foam rather than liquid?