1. 10-17-17 Comprehensive – Review of Types of Investigations

2. Do Now: Answer the following questions in your science notebook
What are the 3 types of scientific investigations?
Observational Studies
Comparative Studies
Controlled Experiments
What is one possible research question for each investigation?
Observational Studies: “How tall is the average human?
Comparative Studies: “On average, are males taller than females?
Controlled Experiments: “Does calcium consumption have an affect on how tall animals grow?”

3. HW Review: What type of Investigation?
Observational, because she is simply making observations about the tissue of the celery and not comparing it to anything else.
Comparative, because he is comparing the number of stomata on a hibiscus leaf versus an ivy leaf.
Experimental, because he is changing the temperature of the potatoes and measuring the effects on enzyme activity. He also has a control group
Experimental, because she is changing the pH levels and measuring if there is an effect on bean growth. She also has a control group.
Comparative, because she is comparing how the worm moves under different conditions. (Yes, this is different from what I told you previously. I apologize for my mistake!)
Observational, because he is simply making observations about the traits of each food sample, in this case, whether it had starch.

4. HW Review: Determine the Type of Investigation Based on a Scientific Research Question
How frequently does it rain in the month of August?
What are the similarities and differences among prokaryotes and eukaryotes
Observational
What is the difference in temperatures at locations A and B at 12:00 noon?
What is the effect of sugar on yeast?
Comparative
What is the gestation period (amount of time for a fetus to develop) for a manatee?
How does running affect heart rate?
Experimental
What is the difference in the pH of the water in a clean aquarium versus a dirty aquarium?
How many insects are there in a given area?
How does temperature affect the growth of mold?

5. Student Work: Meet the Scientist
Lesson Objective: Students will be able to give examples of how scientists can gain scientific knowledge without experimentation
Watch the video about Mari Kimura:
As you watch, answer the questions on the “Meet the Scientist” worksheet.

6. Student Work: Meet the Scientist
With your table group, discuss your answers to the worksheet questions.

7. Student Work: Meet the Scientist Class Discussion
What did the scientist wonder?
Which mosquito species are responsible for spreading avian malaria?
Did the scientist observe something that led him/her to ask a question? If so, what did he or she observe?
She was infected herself by a parasite and became interested in how parasites work.
How did this scientist answer his/her question (what was the investigation like)?
Collecting mosquito eggs, allowing them to grow in the lab,. The mosquitoes were then allowed to bite an infected bird and she then analyzed the mosquitoes for the presence of the malaria parasite.

8. Student Work: Meet the Scientist Class Discussion
d. What kind of information and data did the scientist gather?
Observational: whether or not the mosquitoes had the parasite after biting the infected bird
e. What has this scientist learned as a result of his/her research?
Which species of mosquitoes could spread avian malaria in the wild

9. Homework: None!