Video Clips Ch 1 1. Lab Safety rap: http://www. teachertube Video Clips Ch 1 1. Lab Safety rap: http://www.teachertube.com/viewVideo.php?video_id=194405 2. Scientific method rap: http://www.teachertube.com/viewVideo.php?video_id=66752 3. Myth busters: Cooking in a dishwasher: http://www.discovery.com/tv-shows/mythbusters/videos/dishwasher-lasagna-minimyth/ http://dsc.discovery.com/tv-shows/mythbusters/videos/surreal-gourmet-hour.htm 4. Characteristics of living things 11 mins https://www.youtube.com/watch?v=rFw0cCJd72Y 5. 3 min Instrumental introduction to the characteristics of life: https://www.youtube.com/watch?v=juxLuo-sH6M ) https://www.youtube.com/watch?v=ae_jC4FDOUc Insulin/Glucose 4 mins https://www.youtube.com/watch?v=dJ8WXpsUXYQ Homeostasis 2 mins ( Body Temp)

Biology: The Study of Life Chapter 1 Biology: The Study of Life

The Scientific Method Designed to solve Problems with a systematic approach. The goal is to understand the world around us. Theory: Well tested explanation. Can be revised or replaced Laws: has been proven to occur whenever certain conditions exist 

The Scientific Method 1. Purpose: Develop a question/problem that can be solved through experimentation 2. Research: Gather information 3. Hypothesis: predict a possible answer/ solution to the problem 4. Experiment: To test the hypothesis ( develop and follow procedure & include material list) 5. Analysis: Record and analyze data (modify procedure, confirm results, tables, graphs, photos) 6. Conclusion: Include statement (accepts or rejects hypothesis, improvements)

A factor that is varied by the experimenter. (manipulated variable) Scientific Method Independent variable Dependent Variable Control Constants Trials A factor that is varied by the experimenter. (manipulated variable) The factor in an experiment that results from changes made to the independent variable ( responding variable) Serves as the standard of comparison. No treatment group, all experiments should have a control group All the factors of an experimenter attempts to keep the same Replicated groups that are exposed to same conditions in an experiment

Controlled Experiments involves two groups: control group standard by which all conditions are kept the same experimental group All conditions are kept the same Only test for one condition at a time Independent Variable/ Manipulated Variable What is Changed Dependent Variable/ Responding Variable What is measured Not all experiments are controlled (ex: field studies)

Scientific Method Quantitative: Result in data, numbers and graphs Qualitative: Descriptive, observing, and written data (letters)

Science and Society Science attempts to explain how and why things happen Science is objective: can be tested and measured Society is dealing with the subjective Social, moral, and ethical concerns (right vs. wrong)

Characteristics of living things M = metabolism: chemical reactions Chemical processes that occur within a living organism in order to maintain life. ( Energy Production) Homeostasis: Regulation of an Organisms internal environment: Ex. Sweating and Insulin levels R = Respiration : Breathing Aerobic ( with oxygen) and Anaerobic ( w/o oxygen) How organisms take in and release gases. S = Sensitivity: Stimulus and response Adaptive behaviors, such as chemotaxis and Phototaxis

G = Growth and development Eggs, seeds, spores, placental, Unicellular Vs Multicellular organisms R = Reproduction: Production of offspring Asexual (w/o sex, Mitosis, genetically identical) Sexual (sperm and egg, Meiosis: genetic variation) E = Excretion: Production of waste How organisms move waste from cells to organs N = Nutrition: Obtain a source of food Autotrophs: producers ex: Plants Heterotrophs: consumers ex: Animals

Tissues consisting of many specialized cells Levels organization Cells (microscopic : Specialized, Blood cells, muscle cells, sperm cells, nerve cells) Tissues consisting of many specialized cells Organs a part of an organism that is typically self-contained Has a specific vital function, such as the heart. Organ Systems a group of organs that work together to perform one or more functions.  Organism individual animal, plant, or single-celled life form.

Population (Herd of Horses) Community (Horses, cattle, Pigs) Ecosystems (Horses, cattle, pigs, pond, grass) Biosphere (All of the above including atmosphere)

1. __________________________________ Name: __________________________________________________________________ Lets make our own experiment Questions Create an example for each term 1. Purpose: ( develop a question or problem) 2. Research: ( what facts do you need to look up) 3. Hypothesis: ( Predict the outcome) 4. Experiment: (materials needed/steps performed) 5. Results: (Will you have qualitative or quantitative or both? ) 6. Conclusion: (Compare your hypothesis with your Results. what did you learn? ) 1. __________________________________ _______________________________________ 2._________________________________________________________________________ 3._________________________________________________________________________ 4._________________________________________________________________________ 5.________________________________________________________________________ 6._________________________________________________________________________

Chapter 1 Questions 1. Biology : the study of life 2. Homeostasis: The regulation of an organisms internal environment (body temp and sweating. Blood glucose level and insulin) 3. Evolution: A slow/gradual throughout time.

4. Dependent Variable: The factor in an experiment that results from the changes made. (Responding Variable) 5. Independent Variable: The factor in an experiment that is varied by the experimenter.(Manipulating variable) 6. Control: Serves as a standard of comparison in an experiment. The variable is left out.

7. Scientific Method: The steps scientists use to gather information and solve problems 8. Adaptation: An organism response to better survive in an environment. (MRS. GREN) Metabolism Respiration Sensitivity Growth /Development Reproduction Excretion Nutrition

10. ( Must be in order) Cells-> Tissues-> Organ -> Organ System -> Organism 11. Smell a chemical by wafting 12. Spills or breakage: most common lab accident 13. Wash your hands: The last thing you do in a lab 14. Quantitative research results in data, numbers and graphs. Qualitative research is descriptive, observing, and written data.

Regulation of an organism internal Environment. 15. Homeostasis: Regulation of an organism internal Environment. Ex. Blood glucose (Sugar) levels maintained by insulin. Body temperature maintained by sweating