Students visit a series of stations to learn about water's properties of heat capacity, pH, capillary action, cohesion, adhesion, surface area/evaporation, surface tension and as a solvent.
for Station 1: Heat capacity
for Station 2: pH
for Station 3: Capillary action
for Station 4: Cohesion, adhesion, surface tension
for Station 5: Surface area and evaporation
for Station 6: Water as a solvent
Station 1: Heat Capacity
Students will add 50 mL of tap water to beaker "A" and nothing to "B". They will heat both to 30 degrees C and then time how long it takes them to cool to 25 degrees C.
Station 2: pH
Students will add a few drops of acid to the water, test it and then try and get it back to neutral.
Station 3: Capillary action
Students will test each substance for its ability to travel up the capillary tube.
Station 4: Cohesion, adhesion, surface tension
Students follow instructions on station sign.
Station 5: Surface area and Evaporation
Prepare the "leaves" the night before. The paper towels are twisted into the straws. The leaf with the large surface area needs to have a longer piece of paper towel than the medium. The medium needs to be longer than the small. The water will evaporate much more rapidly off the large leaf, emptying the graduated cylinder more rapidly.
Station 6: Water as a Solvent
Students follow instructions on station sign.
Lesson Design by Jordan School District Teachers and Staff.