1. BIOLOGY I HONORS
Mrs. Fleming
WELCOME!

2. Confused About the Schedule?1  2 3 4 5 6 7 8 1A 2A 3A 4A 1B 2B 3B 4B

3. Hall Pass Log
Do not use the hall pass within the 1st 10 minutes of class.
You have a limited number of hall passes- use them wisely.
USE COMMON SENSE! You decide whether it is an appropriate time to leave the room.
Sign in and out.

4. Late Work
You must fill out a yellow sheet if you do not have your assignment when it is due
No yellow sheet = no late work submission
Each class day late = 25% off

5. How to take Notes…… Shorthand Don’t forget about the textbook! Cornell
Outline
Notecards

6. So what is science exactly?

7. What is biology?

8. Why do we have to learn this stuff?

9. What is the difference between an observation and an assumption?

10. We use a process called the scientific method.
How do you do science?
We use a process called the scientific method.

11. How can I remember the steps of the scientific method?
Research
Question
Hypothesis
Experiment
Data
Conclusions
Repeat It
Really
Quiet
Hippos
Eat
Dark
Chocolate
Repeatedly

12. How/Where do you do your research?
Then you come up with a question.

13. Hypothesis How do you develop a hypothesis?
__________________________________
you use reasoning to develop a hypothesis
inductive reasoning
broad statement formed from specific observation
deductive reasoning
if something is true for a class of things, it is true for all members of the class

14. Experiment it is used now test your hypothesis
How do you design an experiment?
control group vs. test group
independent variable
dependent variable

15. What about safety during an experiment?
Why do we use symbols?
Flammable Sign
Radioactive Symbol
Environmental Hazard Sign
Chemical Hazard Label
Toxic Chemical Sign
Biohazard Label
Combustible Materials Sign
Recycling Sign

16. Data Collected during an Experiment
There are 2 types of data. What are they?
What axes do the variables go on?

17. There is math in science?
this is quantitative research/data –
measurements need to be:
precise - the repeatability of measurement
&
accurate - the agreement between a measurement & the true or accepted value.

18. How can you distinguish between precision and accuracy?

19. Graphing When creating a graph you need: Title
Label the axes w/ the independent & dependent variables
Units
Anything else?

20. There are different graphs for different types of information:
circle graph / pie chart  for percentages
bar graph  to compare
line graph  for changes over time

21. Let’s do some examples….
Daphnia Graphing Activity

22. Metrics
What is the name of the universal system of measurement used in science?
Why do we use a universal system?

23. 4 Basic Units measures ______ meter (m) liter (l) gram (g) second (s)
The metric system uses prefixes to denote amounts…

24. How much are the prefixes worth?
use of prefixes to denote the amount:
kilo = one thousand deci = ____________
hecto = _______ centi = ___________
deca = ____________ milli = ____________
unit = ____________ micro = ___________
(although “unit” is not a prefix)

25. The metric system uses prefixes to denote amounts…K H D u d c m
___

26. King Henry Died unexpectedly drinking chocolate milk ___ µ
The metric system uses prefixes to denote amounts…
King
Henry
Died
unexpectedly
drinking
chocolate
milk
___

27. Dimensional Analysis
In chemistry, they use the dimensional analysis method to arrive at the same result.
Dimensional analysis requires that you know the amounts each prefix represents.
Let’s use some of our previous examples to show you how to use this method.

28. a whole # w/ 2 decimal places
Scientific Notation
This is a shorthand way to write really large or really
tiny numbers. It looks like:
__. __ __ x 10 __
step #1  Place your decimal behind the 1st counting #.
step #2  Write “x 10” behind the decimal #.
step #3  Count the # of places you moved the decimal,
this is your exponent. Reflect the nature of
your move w/ a negative sign (less than 1) or
no sign (greater than or equal to 1)
raised to some power
a whole # w/ 2 decimal places
always times 10

29. Conclusions
- you analyze the data to make an inference - it may not be the result you like but…

30. Theory How and when do conclusions become theories?
How long, or how many times does an
experiment have to be done, before
it becomes a theory?
What makes a theory different from a conclusion?
What makes a theory different from a hypothesis?

31. Not Scientific? What kinds of questions can science not answer?
What are some controversial issues in science?
What are ethics?
Who decides ethics?

32. Lab Safety Food, gum, and drinks Stools Preparing for the lab
Horseplay
Lab clean-up
Trash & recycling
Hand washing

33. HOMEWORK! Read Chapter #1 and continue to fill in your notes.
Complete any unfinished measurement and/or conversion assignments.