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Exploring Life - Honors Biology Chapter 2 Scientific Exploration

When you click Submit (at the bottom of this web page) it will save your work on the server for me.

Since we may work on this over more than one day, I will keep track of what you have done. Feel free to click submit as you work to save your work to the server. 

TAB OR USE THE MOUSE Between the fields....

Answer the questions as best you can. The boxes will expand as you type if you need more space. (Don't worry if it is a one word answer. The box size is standard.)

Since you will be working in groups, put all the names of the people in the group in the box.

Name (s):

 

Class Period

1 2 3 4 5 6 7 8

Open the Explore Life CD in a separate window.   (If you need help with that ask.)

While there are questions on the CD, they provide answers, so I can't grade their questions. You will get a grade for the answers on this form!

Click on Chapter 2

-At any time you can refer back to the text via the menu on the side-

Start with Concept 2.1

Question 1: In your  words, what is the difference between an inference and an observation? Look around the classroom. Make at least one observation and one inference, and in your answer identify them as such.

Click next activity at the bottom of the page.

Go through the activity "with" Dr. Manning. 

Question 2: Why is the conclusion only an inference? 

Continue on page 2.

-At any time you can refer back to the text via the menu on the side-

Question 3: Dr. Gottfried has invented a "magic" smart pill. Briefly design an experiment to see if it actually makes students smarter.

Click next activity at the bottom of page 2.

Question 4: Briefly discuss how progress in science is like a ladder.

Remember, the boxes will expand as you type if you need more space.

On the left side of the screen is a table of contents. Click on Lab 2.

Go through all the parts of designing an experiment. We will get leaves from my yard. 

-At any time you can refer back to the text via the menu on the side-

Vocabulary not in the text:

Independent variable- the variable in an experiment you modify

Dependent variable- the variable in an experiment you measure to see what happened. 

For example, if you think that a particular fertilizer might make plants grow taller you could set up an experiment with 0, 1 mg/day, 2mg/day of the fertilizer and then measure the plants growth. 

The amount of fertilizer would be the independent variable and the dependent variable would be the height of the plants.

PRELAB-Based on the CD experiment

Question 5. Which variable is the studentís experiment described in the Prelab Activity designed to test? Is that an independent or dependent variable?

Question 6 List three other possible variables in this experiment and explain what the student did to control each one.

Question 7. Which of the following conclusions is best supported by the data the student collected? Explain.

a. Jasmine leaves exposed mostly to shade are tougher than those grown in the sun.

b. Jasmine leaves exposed mostly to sun are tougher than those grown in the shade.

c. The amount of sun exposure does not seem to affect the toughness of jasmine leaves.

Question 8. If the student had tested only one leaf grown in the sun and one leaf grown mostly in the shade, might that data have supported a different conclusion? Explain.

Question 9: Devise a hypothesis and a carefully controlled experiment to test it using the a rip-o-meter. In the box below include the hypothesis, the independent and dependent variables  Describe what factors you would have to control for it to be a meaningful experiment.

Remember, the box will expand as you type as you need more space.

We will actually do this lab after this assignment is collected. 

Question 10: As a way of learning and doing "handouts" did this work for you and your group? The alternative was a lecture. There will be no lecture on chapter 2.

If you have time you can go back through the CD for anything else you want to read more about.

      
This web page is being hosted at Dr. Gottfried's  Tripod account. Technical questions should be referred to mgottfried@dadeschools.net