1. With your lab table discuss what's wrong with this picture.
Warm up
With your lab table discuss what's wrong with this picture.

2. Warm up- Grab your composition books!
What is the scientific method?
Try to list the 6 steps....
Copy down the following vocab:
Variable- something you are changing
Independent variable- what's being manipulated (x-axis)
Dependent variable- response to manipulation (y-axis)
Control- remains constant, no manipulation

3. Can you count all the trees in the world?
Crowther et al., 2015
3 trillion trees
422 trees/person
50% decline since human civilization began
How did he measure all the trees in the world?
satellite images, forest inventories and supercomputing technologies to calculate the number of trees

4. Scientific Method Foldable- Why are the steps important?
Observation/background research
Hypothesis "If, then, because"
Design experiment
Gather data
Conclusion
Communicate results/repeat
Use of senses to gather information about a subject. Research the topic to form a good hypothesis -> good experiment
What are you testing? How? Variables?

5. Hypothesis- Testable answer to your question
Observation/Research- Formulate a question based on observation, background research (Google)
Hypothesis- Testable answer to your question
“if, then, because" STATEMENT
Design Experiment- test hypothesis. Includes variables-independent and dependent, a control, able to repeat
Gather Data- Data should accept or reject our hypothesis
Conclusion- gather data, analyze data (tables/graphs), conclude whether it supports or rejects the hypothesis
Communication/ repeat- share findings so that others can verify/repeat the experiment and expand on the findings

6. Observation and Research
Through observation, you formulate a question that you are trying to answer.
For example:
My car won’t start. Why?
Inferences can be made using information you already know through books, past experiences, etc. or you can research your question.
My car is out of gas.

7. Hypothesis
This is what you think the answer to your question is based on the information that you have gathered.
For example:
If the car is out of gas, then it won’t start because it needs the gas to begin combustión.

8. Controlled Experiment
Only tests a single factor in the experiment
Has a control group
Has a independent variable (manipulated/ x-axis) and a dependent variable (responding/y- axis).

9. Communicate and Retest
Retest the hypothesis numerous times
Report your findings so other scientists can learn from your experiments and repeat experiments

10. Hypothesis vs Theory vs Law
Hypothesis an inference about why something happens based on some data
Theory in-depth explanation of why something happens based on lots of data and accepted by the scientific community
Law statement about something that happens that is universally accepted as being true

11. In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi. Symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. Scientists thought if people where getting sick, then it might be caused by bacteria. They injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria.
One of the scientists, Dr. Eijkman, noticed something. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case and found that polished rice lacked thiamine, a vitamin necessary for good health

12. Discuss with your lab table and answer the following questions in your composition book.
1. What was observed?
2. What was the hypothesis?
3. How was the hypothesis tested? What was the experimented?
4. Should the hypothesis be supported or rejected based on the experiment?
5. What should be the new hypothesis and how would you test it?

13. Beriberi cont... What was the control?
What was the independent variable?
What was the dependent variable?

14. What part of the scientific method is this statement
What part of the scientific method is this statement? Does the size of tank determine how large a fish is going to grow?