Viewers of this slide show learn that pesticides used on food crops can be harmful, but that there are certain allowable levels that should not be hazardous. They find out the rigorous process of inspection that meat must go through...

Students investigate the uses of pesticides and the pros and cons of their use. In this pesticides lesson, students observe simulations of the three classes of pesticides and the effects or actions each has. Students answer 3 follow up...

Learners come up with a list of all the animals that might be found in a zoo. They think of all the things that a zoo needs to do and provide for each animal. They discuss what the role of any zoo should be. They design a healthy zoo...

An interactive labeling exercise on parts of the human ear.

This site illustrates all of the parts of the human ear. The student may drag and drop labels to identify the correct parts of the ear.

Illustration of the ear, with parts labeled.