SOLUBLE SUBSTANCES

CURIOSINE TODAY ASKS US TO MIX WATER WITH OIL WHAT HAPPENS? CAN WE MIX THEM? IS THE OIL FLOATING OR LAKING? DO YOU KNOW WHY? TO BETTER EXPLAIN THE PHENOMENON, WE TRY TO TAKE A RUBBER BALL AND SEE WHAT HAPPENS IF I KEEP IT BACK TO THE BOTTOM FOR A MOMENT AND THEN I LET IT GO.

WHAT HAPPENS? THE VARIOUS ANSWERS ARE COLLECTED IF NO ONE ANSWERS IS INTERVENED: DO YOU SEE HOW IT JUMPS OUT LIVELY? IT IS PUSHED BY THE WATER TO RETURN TO THE ROOSTER: IT IS THE WATER THAT PUSHES IT.

THE BALL, THE OIL ARE LIGHTER THAN THE WATER ...

THEREFORE THE WATER PUSHES THEM OUT, LIFTS THEM, MAKES THEM GO UP.

METHODOLOGY: IN THIS ACTIVITY THE TEACHERS WILL DIRECT THE DIFFERENT STAGES OF THE EXPERIMENT.