About This Lesson
In this laboratory activity, students will perform an investigation that illustrates how surface area, and a suite of external conditions,may affect the rate of evaporation from an object, using a model frog made from sponge.They will learn about why a frog’s skin needs to stay moist and play a game that illustrates how surface area can affect evaporation. Throughout the program, students will apply scientific process skills by making a prediction, following experimental procedure, controlling variables, recording data, and analyzing graphs.