Proverbs 22:6 – Train up a child in the way he should go, even when he is old, he will not depart from it.
My son loves hands-on activities. In this Kitchen Lab we conducted an experiment to find out what makes something sink or float in water.
Target Vocabulary: absorb, Archimedes, buoyancy, change, common, concept, conduct, difference, disprove, experiment, float, force, inquiry, lab, method, observation, outcome, prove, replicate, result, similarity, scientific, sink
Before the Lesson:
I talked about Archimedes, the Greek scientist who discovered the concept of buoyancy. Specifically, I mentioned that water has weight and Archimedes found when something is placed in water, a force causes the object to lift. When an object has enough buoyancy force (equal to its weight), it can float. When something does not experience enough force, it sinks. I also discussed how by conducting experiments, one can replicate and prove or disprove a scientific concept. This is also known as the basic scientific inquiry method.
Conduct an experiment using various fruits and vegetables to find out which ones can absorb enough air to make them float. Conduct two comparisons: the first with their peel on and the second without peel to see if there is a difference. Establish a similarity between peels and human skin (how air is absorbed through the peel much like our skin breathes and absorbs air).