1. Introduction to Biology
Unit One
Introduction to Biology

2. Essential Question: What are the five major lab safety rules you should follow during every lab?
Warm-Up: What are the six rules for this class? (See Syllabus)

3. Lab Safety Video

4. What are the five major lab safety rules you should follow during every lab?

5. Cell phones in cell-phone caddy please!

6. Essential Question: Please place cell phones in cell-phone caddy!
Warm-Up: Unit One Pre-Post Test

7. Please place phones in phone caddy!
Essential Question: How does the independent variable differ from the dependent variable?
Please place phones in phone caddy!
Warm-Up: Coming next…

8. What are the different kinds of observations?
1. Qualitative Observation- what you see or sense
a. Color
b. Smell
2. Quantitative Observation- how much; has a
number
a. Mass
b. Temperature

9. How does an inference differ from an observation?
1. Observations refer to noting a fact or occurrence by using our five senses.
a. Sight
b. Smell
c. Touch
d. Taste
e. Hear
2. Inferences are explanations or interpretations of what you are observing; They are statements that explain what you are observing.

11. Observations vs Inferences Test Your Observation Skills

12. Worksheet: Observations vs Inferences

13. Check-Out:
How does an inference differ from an observation?

14. Observation or Inference?
The sky is blue
There are clouds in the sky, it is going to rain
Amy got a 100% on her test; girls are better at math
The candle is burning.
The room smells like vanilla

15. What are the steps of the scientific method?
1. Make an observation
2. Ask a question or pose a problem to solve
3. Make a hypothesis
a. an educated guess that might be true
b. it should be an if/then statement

16. a. Decide on your control- your standard for
4. Design and conduct your experiment
a. Decide on your control- your standard for
comparison; this group will not be altered
b. Choose one variable to change, the
independent Variable
c. The dependent Variable-what happens as a
result of the independent variable

17. b. Display a graph of your results c. Discuss the results
5. Record your observations
a. Fill in a data table
b. Display a graph of your results
c. Discuss the results

18. 6. Write your conclusion. You will either accept or reject your hypothesis
Steps of the Scientific Method

20. Lab: What factors determine how fast a substance dissolves?

21. Check-Out:
How does the independent variable differ from the dependent variable?
Quantitative or Qualitative?
a. 55 grams
b. Soft
c. 80 cm
d. smells like cake
e. 100%

22. Essential Question: What are the 8 characteristics of life?
Please place cell phones in the caddy! Warm-Up: Analyze an experiment

23. Read section1-3 : Studying Life and define the six terms on your study guide.

24. How does a theory differ from a law?
Theory-a collection of related hypotheses that
have not been rejected
2. Law-a statement of observed facts that has
been tested many times and is accepted as true
3. Science progresses by systematically eliminating
potential hypotheses that are not consistent with
observation

25. What are the 8 characteristics of life?
1. All living things are made of cells
a. Prokaryotic Cells (Bacteria); usually
one cell
b. Eukaryotic Cells (Plants or Animals

26. Asexual Reproduction- one parent; bacteria
2. Living Things Reproduce
Asexual Reproduction- one parent;
bacteria
b. Sexual Reproduction- two parents

27. homeostasis; keep things the same a. Temperature b. Blood Pressure
3. Living things maintain balance or
homeostasis; keep things the same
a. Temperature
b. Blood Pressure

28. 4. Living things have DNA, the universal code for traits and characteristics

29. a. Movement of parts; plants grow towards the light
5. Living things respond to the environment
a. Movement of parts; plants grow towards the
light
b. Locomotion from one place to another; walk
to find food or water

30. 6. Living things grow and develop
a. Increase in the size or number of cells
b. Change in body design; Tadpole 
Frog

31. a. Eat b. Drink c. Go to the bathroom
7. Living things obtain and use energy
a. Eat
b. Drink
c. Go to the bathroom

32. a. Change to stay alive in response to changes in the environment
8. Living things change over time-they
evolve/adapt
a. Change to stay alive in response to changes
in the environment
b. Usually takes a long time to occur

33. Essential Question: Why are viruses not “alive”?
Warm-Up: Which characteristic of life?
A jogger running through the park.
Enjoying a delicious ice cream sundae.
Swatting a fly away from your face.
Sweating after a hard workout.
Getting a haircut to get rid of split ends.

34. The Characteristics of Living Things

35. Check-Out:
Why are viruses not “alive”?

36. Essential Question: What is the least complex level of organization and the most complex?
Got homework: Have it out to be checked!!!
Warm-Up: Coming next….

37. Students put the same type of bacteria in 15 petri dishes
Students put the same type of bacteria in 15 petri dishes. Antibiotic A was applied to 5 dishes, Antibiotic B was applied to 5 dishes, and antibiotic C was applied to the last 5 dishes. At the end of two weeks, the number of bacteria cultures were counted.

38. a. What were the constants. b. What was the manipulated variable. c
a. What were the constants? b. What was the manipulated variable? c. What was the responding variable? d. Was there a control?

39. How is life organized from least complex to most complex?
Atoms
2. Molecules -two or more atoms joined
together

40. 3. Organelles
a. Nucleus
b. Mitochiodria
4. Cells

41. 5. Tissues
a. Blood
b. nervous
6. Organs;
a. heart
b. kidney
c. brain

42. a. Nervous b. Skeletal c. Muscular 8. Organisms a. Bacteria b. Animals
7. Organ Systems
a. Nervous
b. Skeletal
c. Muscular
8. Organisms
a. Bacteria
b. Animals
c. Plants

43. a. Pride of lions b. Gaggle geese
9. Populations- all the same type of organism
a. Pride of lions
b. Gaggle geese

44. populations living in a specific place, like a pond
10. Community- a collection of different
populations living in a specific place,
like a pond
a. Pond with frogs, fish, cattails, etc….
11. Ecosystem- all the different kinds of organisms that
live in an area together with their physical environment
12. Biome-a group of ecosystems with the same climate
13. Biosphere- land, water and air where all life exists

45. Biological Levels of Organization

46. Check-Out:
What is the least complex level or organization and the most complex?

47. Please place cell-phones in caddy!
Essential Question: How do you determine the magnification using a microscope?
Please place cell-phones in caddy!
Warm-Up: Which is more complex?
A tissue or a cell
An organelle or an organ
A population or a biome
A molecule or a community
An organ system or a organism

48. Check-Out: How do you determine the magnification using a microscope?
What are three things you need an electron microscope to see?
What are three things you can see with a light microscope?