This message decoder is a great way for students to practice their skills with calculating density. All problems give the chemical equation needed to solve the problem. Problems include determining volume from cubes, cylinders, and graduated cylinders.

Farm Animals Interactive Identification Game: This is not your average PowerPoint! This PowerPoint is a live-working interactive dichotomous key! Each slide has code embedded within it that allows the students to answer yes or no questions about farm animals. The students are to pick an animal they like to begin the "game" or lesson. The students are then presented with questions about marine animals such as: Is the animal a mammal? Does the animal lay eggs? Is the animal an adult? etc. After clicking the correct button, only the animals with the chosen characteristics are left on the screen. Additional questions are asked until the correct animal is chosen. This PowerPoint can be used in many different ways: *Teaching young children about farm animals *Teaching young and older children about animal characteristics *Teaching older children about dichotomous keys Important Note: This interactive works when in SlideShow mode