Extra Credit due March 21

Here are two extra credit opportunities that are due on Fri, March 21. Don't forget that there's also a study guide for the test that will be on Friday. 

Click this link to read "The (kids') eyes have it." Then, answer the following questions on a paper that you will bring to class on Friday, March 21. The questions are worth 5 points each.

1. What was the independent variable?
2. What was the dependent variable?
3. What was one controlled variable?
4. How did scientists explain the conclusion?
5. Why were the results were surprising to some scientists?

Click the link to read the article, "Risk-taking linked to Ritalin." Then, write the answers to the following questions on a paper you will bring to class on the 21st.The questions are worth 5 points each.

1. What was the independent variable?
2. What was the dependent variable?
3. What was given to the control group?
4. What was given to the experimental group?
5. What were three controlled variables?
6. What was the conclusion?
7. Why is this research important?

 You can read more info on control groups and experimental groups at this link.