What is What is Science???Science???

Characteristics of Science TESTABLE

Gregor Mendel’s experiments EXPLANATORY

Theory of Evolution TENTATIVE

Quantum Theories

SCIENCE is…

S –systematicC – comprehensiveI – investigation andE – exploration ofN – nature’sC– causes and E- effects

ChemistryChemistryWhy study Why study

chemistry???chemistry???

Natural ScienceNatural Science

Physical SciencePhysical Science Earth and Space ScienceEarth and Space Science Life ScienceLife Science

Physics Chemistry Geology Astronomy Botany Zoology

Meteorology

Oceanography

Ecology

Genetics

Natural science covers a very broad range of knowledge.

Why study Chemistry?Why study Chemistry?

Understand the Understand the

physical world physical world

around us.around us.

Dual Perceptions

Dual Perceptions

Dual Perceptions

Is the study of matter,

its properties,

the changes that matter

undergoes,

and

the energy associated with these

changes.

•Why water droplets are rounded

*Why ice melts

•Why oil prices keep on increasing

•Why adding some bleach removes some stains and odors

*Why we don’t dissolve when we swim (though we’re mostly water)

Have you ever wondered. . .

•Why perfumes smell and cost differently

•Why glass breaks and plastic doesn’t•Why moisturizers work the way they do

•Why we make use of soaps, body, or facial washes

Have you ever wondered. . .

Have you ever wondered. . .

•Why some people need to get their hair rebonded and why rebonding works

•Why cancer kills

•Why we are able to talk and chimps are not, though we’re 99% homologous

*Why vegetables look and taste the way they do

Will you eat this?

-Terpinolene, Ethyl butanoate, 3-Carene, Ethyl acetate, Ethyl 2-butenoate, -Terpinene, -

Thujene, Dimethyl sulfide, Limonene, -Phellandrene, Myrcene, p-Cymen-8-ol, -

Caryophyllene, cis-3-Hexene-1-ol, hexadecyl acetate, 5-Butyldihydro-3H-2-furanone, trans-2-hexenal, Ethyl tetradeconaoate, -Humulene,

sabinene, 2-Carene, Camphene, Ethyl octanoate, 4-Isopropenyl-1-methylbenzene 1-

Hexanol, -terpinene, hexanal, Ethyl hexadecanoate, -Copaene, Hexadecanal,

Ethanol, Ethyl propionate, Dihydro-5-hexyl-3H-2-furanone, Carveol, Geranial, Ethyl decanoate, Furfural, Butyl acetate, Methyl butanoate, 2,3,

Pentanedione, 1,1, diethoxyethane, pentadecanal, Butyl formate, 1-Butanol, 5-

Methylfurfural, Ethyl dodecanoate, 2-Acetylfuran, 2 Methyl-1-butanol, 4-

Methylacetophenoen, Acetaldehyde, Cyclohexane

MangMangoo

Do you know the following?Do you know the following?

• 6-(hydroxymethyl)oxane-2,3,4,5-tetrol

• alpha-D-glucopyranosyl beta-D-fructofuranoside

• Acetic acid• Sodium bicarbonate• Dihydrogen monoxide or

DHMO

A world of chemistry

We live in an ordered world

What is happening in this material world we live in?

CHEMISTRY may hold some of the answers.

CHEMISTRY

BIO

PHYSICSENVI.SCI.

COMP.SCI HEALTH

ARTS

Economics

Toxicology

Materials

Business

Food science

Agriculture

Engineering

Psychology

Neurology

Electronics

Why study chem?•We are chemically dependent•We live in a chemical world

•The materials of the earth, our food, our clothing, drugs, biocides, additives, fertilizers, fuels, detergents, cosmetics, plastics, waste, pollution, etc.

•Chemical know-how is vital in many industries and businesses

Why Study Why Study Chemistry?Chemistry?

Hopefully…Hopefully…

• Understand the Understand the physical world physical world

• See the universe in a See the universe in a molecular perspectivemolecular perspective

• Appreciate the beauty Appreciate the beauty of science of science

• Aware of the potential Aware of the potential dangers of sciencedangers of science

• Help you make Help you make intelligent decisionsintelligent decisions

CHEMISTRY is…CHEMISTRY is…

C –crazyH – HenryE – EnjoysM – murderingI – insects byS – smacking them withT- teflon pan until they becomeR – reallyY - Yucky

C –chemistryH – helpsE – explain whyM – mangoesI – inS – seasonT- turnR – reallyY - yellow

CHEMISTRY is…CHEMISTRY is…

C –’causeH – havingE – everything asM – matterI – isS – soT- totallyR – rockingY – you know

C –consistentH – harmony amongE – Earth’sM – materials thatI – improveS – society andT- transform theR – rigors ofY – your world!

CHEMISTRY is…CHEMISTRY is…C –comprehensive andH – horizon-lessE – exploration of M – matter’sI – inmostS – structures,T- transformations andR – reactionsY – yeah!!!

Areas of Chemistry

• Organic

• Inorganic

• Analytical

• Physical

• Biochemistry

The study of most carbon-containing compounds

The study of all substances not classified as organic, mainly those compounds that do not contain carbon

The identification of the components and composition of materials

The study of the properties, changes, and relationshipsbetween energy and matter

The study of substances and processes occurring inliving things