Stimuli

Here is a chance for emerging scientists to practice newly gained skills in scientific inquiry. They carry out the steps of the scientific method to determine what substances a snail is attracted to. Everything that you need for this...

Can you train a worm? Biology buffs will have a blast trying! Using planaria or earthworms, they introduce a certain stimulus repeatedly until the desired response happens more quickly. They also explore the response of their own eyes to...

Wiggle your way through lab day! Young zoologists observe and infer the effects of different stimuli on earthworms during an engaging lab from the K20 series. Lab partners set up four different controlled environments, then record how...

Ever wondered what motivates a roundworm? Introduce your biology class to C. elegans, a non-parasitic model organism that can help them understand behavioral stimuli. Paired pupils design an experiment to test the worm's reaction to...

Plants react to many different stimuli, but do they think? After many years, scientists now have a definite answer. A video shares the theories and facts as part of a larger biology playlist. From plants listening to music to plants...

Are your eyes really playing tricks on you, or is it just your brain's natural evolution to handle natural stimuli occurring in real life?  Theoretical neurobiologist Mark Changizi explores the complexities of our eyes and our brain's...

Learners study the process of detection, coordination and response. In this biology instructional activity, students design an experiment to test stimuli response. They participate in a game-show style quiz after the activity.

Get your class thinking with animations of neurons in action and explanations of how stimuli is transported and processed. This film makes an ideal introduction or review of the nervous system. The parts of the brain and what they...

Students observe the reaction of living cells to mechanical and chemical stimuli by introducing different stimuli to an organism under a microscope and recording the response.

Even clothing styles are part of a feedback loop. Learners explore four different examples of feedback loops both outside of and within the body: speed limit signs, thermostats, thermoregulation, and blood glucose levels. They...