Introduction to Science Section 1 The Nature of Science
How Does Science Take Place? 1) Investigate 2) Plan 3) Observe 4) Test
Biological Science Physical Science Earth Science Branches of Science Nature of Science Biological Science Physical Science Earth Science study of living things study of matter and energy study of Earth Botany Zoology Ecology Physics Chemistry Geology Meteorology forces/energy matter and change
Scientific Laws and Theories Laws- a law allows predictions to be made. It describes a process in nature that can be tested by repeated experiments. DOES NOT EXPLAIN HOW! Theories- are always being questioned. To be valid it must pass several tests. 1) Explain clearly and consitently 2) experiments must be repeatable 3) Must be able to predict from the theory.
Math can describe physical events Area of a rectangle: A = l x w Gravitational equation F = g m1xm2/d2
Models: Represent Physical Events Water Crashes
Computer Models Weather