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
TAB OR USE THE MOUSE Between the
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.
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.
Why is the conclusion only an inference?
Continue on page 2.
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
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
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.
on the CD experiment
variable is the studentís experiment described in the Prelab Activity designed
to test? Is that an independent or dependent variable?
three other possible variables in this experiment and explain what the student
did to control each one.
of the following conclusions is best supported by the data the student
leaves exposed mostly to shade are tougher than those grown in the sun.
leaves exposed mostly to sun are tougher than those grown in the shade.
amount of sun exposure does not seem to affect the toughness of jasmine leaves.
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.