THE STUDY OF LIFETHE STUDY OF LIFE

All living things share the All living things share the characteristics of life. characteristics of life.

Chapter 1Chapter 1

The Science of LifeThe Science of LifeBiologyBiology

Bio—Greek Bio—Greek word-Bios word-Bios meaning meaning lifelife Logy—Greek word-Logy—Greek word-logos logos meaning study meaning study What characteristics have you observed What characteristics have you observed

that are shared by all living things? that are shared by all living things? List:List: How does biology relate directly to your How does biology relate directly to your

own life? own life? List some examples of living things.List some examples of living things.

The Characteristics of LifeThe Characteristics of Life

Made of one or more cells- the Made of one or more cells- the Cell TheoryCell Theory Displays levels of organization-Displays levels of organization-cells, tissuecells, tissue Grows and developsGrows and develops ReproducesReproduces Responds to stimuliResponds to stimuli Requires energyRequires energy Maintains homeostasis-a balanceMaintains homeostasis-a balance Adaptations evolve over timeAdaptations evolve over time

The Nature of ScienceThe Nature of Science

Science is a process based on inquiry that Science is a process based on inquiry that seeks to develop an explanation.seeks to develop an explanation.

Theory-meaning/ defineTheory-meaning/ define Science vs. Pseudo-science- such as, Science vs. Pseudo-science- such as,

astronomy/ astrologyastronomy/ astrology List the branches: Cell biology, Genetics, List the branches: Cell biology, Genetics,

Evolution, Animal behavior, and EcologyEvolution, Animal behavior, and Ecology

Methods of ScienceMethods of Science

List the steps of the Scientific Method:List the steps of the Scientific Method: observe, research, form a hypothesis, observe, research, form a hypothesis, experiment, collect data, experiment, collect data, analyze data-form a conclusionanalyze data-form a conclusion How is a scientific investigation done?How is a scientific investigation done? Using the headings Using the headings Collect Data, Analyze Collect Data, Analyze

the Data, and Report Conclusion—write a the Data, and Report Conclusion—write a paragraph about each of these paragraph about each of these processes..processes..

Measurement-SI unitsMeasurement-SI units

There is a need for common unitsThere is a need for common units Length: millimeter, centimeter, meter, kiloLength: millimeter, centimeter, meter, kilo Mass: milligram, gram, kilogramMass: milligram, gram, kilogram Volume: milliliter, liter and Area: L x WVolume: milliliter, liter and Area: L x W Density: Mass/ VolumeDensity: Mass/ Volume Weight: NewtonWeight: Newton Temperature: Celsius or KelvinTemperature: Celsius or Kelvin Time: secondsTime: seconds

Experiment Experiment

Question: Would cans of diet coke and Question: Would cans of diet coke and coke weight the same and will each float?coke weight the same and will each float?

Research: read?Research: read? Form a Hypothesis:Form a Hypothesis: Experiment: Experiment: Collect dataCollect data Analyze data and form a conclusion-Analyze data and form a conclusion-

repeat the hypothesis then answer the repeat the hypothesis then answer the questionquestion

Questions Questions

Do you have any questions?Do you have any questions? Please list questions.Please list questions.