BioEd Online
Bio Ed Online: Neurotransmitters Contain Chemicals
Nervous system signals are transmitted electrically along individual neurons, but neurons are separated from each other by a tiny gap. Chemical messengers called neurotransmitters cross the gap between neurons. Neurotransmitters fit into...
TeachEngineering
Teach Engineering: Electrocardiograph Building
This activity will build upon the concepts taught in the lesson The Strongest Pump of All. The activity will pull together the concepts of bioelectricity, electrical circuits, and biology. It will allow the students the opportunity to...
Creative Science Centre
Creative Science Centre: Demonstration of Radio Waves Generated by Mobile Phone
Described is a simple low cost home-made device that converts the radio wave energy from a mobile phone signal into electricity to light an LED. No battery or complex circuitry is required. The device can form the basis of a range of...
TED Talks
Ted: Ted Ed: Can You Solve the Jail Break Riddle?
Your timing made you and your partner infamous bank robbers. Now, you need to use that timing to break out of jail. Your partner is about to flash you a signal, and exactly 45 seconds later the electric fence circuit will short out. Then...
PBS
Pbs Teachers: Scientific American: Creatures of the Deep: Shark Trackers
Track an unseen target with an audio meter, and make accurate estimations of distance and depth by analyzing the signal strength and frequency. Construct an electroscope to detect electric charges.