Did a physical property of the water change when mixed with lemon juice?
What changed, if anything?
Did a physical property of the water change when mixed with tea?
What changed, if anything?
Did a physical property of the iron filings change when mixed with sand?
What changed, if anything?
Did a physical property of the sand change when mixed with water?
What changed, if anything?
Did a physical property of the powdered drink mix change when mixed with water?
What changed, if anything?
Did a physical property of the penny change when mixed with other coins?
What changed, if anything?