CHAPTER CHAPTER 11

Section 1 Section 1 The Nature of The Nature of

ScienceScience

Science is a process Science is a process 11stst investigate/research investigate/research a problema problem

22ndnd experiment experiment 33rdrd observe the observe the outcomeoutcome

44thth test the results test the results againagain

Natural Science

Chemistry

Biological ScienceStudy of

Living world

EcologyBotony

Zoology

Physical Sciences

Study of EnergyAnd Matter

Earth Science

Study of theEarth

Physics

Geology Earth Science

Meteorology

Many other

Branches

OLOGYOLOGY- means the - means the study of ….study of ….

Physical science is Physical science is the study of matter the study of matter and energy.and energy.

2 branches of physical 2 branches of physical science arescience are ChemistryChemistry * the study of * the study of what substances are what substances are made of and how they made of and how they combine and changecombine and change

PhysicsPhysics * the study of forms * the study of forms of energy and the laws of of energy and the laws of motionmotion

Observe the world around Observe the world around themthem

Question why things are that Question why things are that wayway

Seek out answers to Seek out answers to problemsproblems

Look for basic truths/ factsLook for basic truths/ facts

Some of Leonardo da Vinci’s ideas could not be built until twentieth century technology developed.Some examples are: a designfor a parachute and a designfor a glider.

Science- goal is to Science- goal is to gain knowledge about gain knowledge about the natural worldthe natural world

Technology- goal is to Technology- goal is to apply science to solve apply science to solve problemsproblems

Law- observation of Law- observation of nature, summary of a nature, summary of a natural event and has natural event and has been tested been tested repeatedly. Can be repeatedly. Can be used to make used to make predictions, accepted predictions, accepted as the truth.as the truth.

Theory- logical Theory- logical explanations for events explanations for events of nature. of nature.

They must explain They must explain observations clearlyobservations clearly

The experiment must The experiment must be repeatablebe repeatable

You must be able to You must be able to make a prediction make a prediction from the theory.from the theory.

We continue to test We continue to test laws and theories laws and theories for any changesfor any changes

Qualitative – an unbiased Qualitative – an unbiased observation that is observation that is described in words.described in words.

QuaQuanntitative – using titative – using numbers numbers

Models are Models are representations of an representations of an object or event that object or event that can be studied so you can be studied so you can understand the can understand the real dealreal deal

A = l x w A = l x w

Area = (length) x (width)Area = (length) x (width)