Unit 1 Chapter 1 What is Biology? Biology: the study of life.
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Transcript of Unit 1 Chapter 1 What is Biology? Biology: the study of life.
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Unit 1 Chapter 1What is Biology?
Biology: the study of life
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Characteristics of living things:
Living things have an orderly structure
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Characteristics of living things:
Living things produce offspring
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Characteristics of living things:
Living things grow & develop
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Characteristics of living things:
Living things adjust to changes in the environment
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Methods of Biology
Scientific Method As series of steps to solve a problem
Experiment An investigation that
tests a hypothesis by the process of collecting information under controlled conditions
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Methods of Biology
Hypothesis An explanation for a question or a problem that
can be formally tested Control
The group in which all conditions are kept the same
Theory An explanation that is supported by a large body
of scientific evidence obtained from many different investigations
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Methods of Biology
Independent variable The condition in an
experiment that is changed
Dependent variable The condition that
results from changes in the independent variable
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Data (information obtained from investigations)
1) Quantitative Numerical data that
may be analyzed by comparison
Ex: used to make a graph or table
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Data (information obtained from investigations)
2) Qualitative Observational data,
not easily expressed as quantitative information
Ex: written descriptions of some phenomena
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Tools used by Biologists
Beaker Bunsen burner
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Tools used by Biologists
Cork Cover slip
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Tools used by Biologists
Digital balance Dissecting tray
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Tools used by Biologists
Dropper bottle Flask
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Tools used by Biologists
Forceps Funnel
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Tools used by Biologists
Graduated cylinder Hot plate
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Can you read the graduated cylinder?
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Tools used by Biologists
Inoculating loop Meter stick
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Using an inoculating loop(by flaming for sterilization)
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Tools used by Biologists
Microscope Microscope slide
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Using a Compound Light Microscope
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Tools used by Biologists
Mortar & pestle Petri dish
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Tools used by Biologists
Pipettes: micropipettes & dropping pipettes
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Improper use of serological pipette
Never pipette by mouth!!
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Tools used by Biologists Ring stand (& clamps)
(uses)
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Tools used by Biologists
Scalpel Stereoscope
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Tools used by Biologists
Spatula & Stirring rod
Thermometer
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Tools used by Biologists
Test tube
Test tube clamp
Test tube rack
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Use Test Tubes safely!
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Tools used by Biologists
Triple beam balance Weight boat
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Can you read this Balance?