Stimuli lesson 2

1. Lesson 2: Stimuli Foundation Science SC 22101

2. What is a Stimulus? Stimulus – something that causes a response.

3. Stimulus and Response Stimulus – hot pan Response – quickly pull hand away Draw picture in your notebooks and write the stimulus and the response. Example…… Stimulus Response

4. Stimulus and Response Draw picture in your notebooks and write the stimulus and the response. Stimulus – ? Response – ? Internal or external stimulus? Stimulus Response

5. External Stimuli Stimuli that are present outside of the body are called external stimuli. What parts of a human body detect external stimuli ? Tongue Eyes Skin Nose Ears

6. Stimulus and Response Draw picture in your notebooks and write the stimulus and the response. Stimulus – ? Response – ? Internal or external stimulus? Stimulus Response

7. Stimulus and Response Draw picture in your notebooks and write the stimulus and the response. Stimulus – ? Response – ? Internal or external stimulus? Stimulus Response

8. Stimulus and Response Draw picture in your notebooks and write the stimulus and the response. Stimulus – ? Response – ? Internal or external stimulus? Thirsty man looks for water.

9. Stimulus and Response Draw picture in your notebooks and write the stimulus and the response. Stimulus – ? Response – ? Internal or external stimulus? Thirsty man looks for water.

10. Questions What does response mean? What does the prefix “photo” mean? What does the suffix “tropic” mean? Use the prefix and suffix from question 2 to tell me what phototropic means. Did we see a picture of a phototropic plant in class today?