McLachlan's work has primarily been in the area of the autonomic nervous system. Find out more about the nervous system and write a short essay about how it works. The heart is controlled by the autonomic nervous system. Students measure changes in heart rate during an arithmetic test. Students time how long it takes for a hand squeeze to travel around a circle of people.
Students determine which end of an earthworm is more sensitive to odours, sound and light.
Using the computer mouse, students find and circle hidden words.