In our Unit of Inquiry, learners have been exploring about the states of matter. Moving Further, PYP 3 learners understood the meaning of Density with the help of Density tower experiment. The layers were made with honey, liquid soap, water, milk and cooking oil. We talked a bit about what density meant and which liquids they thought were denser. They really liked seeing how everything separated and that oil was the lightest! It was neat to watch the liquids poured in and then began to separate into their own level in this density tower. Some of the learners exclaimed that one liquid was lighter than the other so they guessed a good idea of what we were trying to do!