1.1 Chemistry1.1 Chemistry

Objective 1:Objective 1: Define Chemistry and differentiate among its Define Chemistry and differentiate among its

traditional divisionstraditional divisions Objective 2:Objective 2:

Decide why it is important to study ChemistryDecide why it is important to study Chemistry Objective 3:Objective 3:

Summarize ways in which Chemistry affect your Summarize ways in which Chemistry affect your daily life and the impact it has on various daily life and the impact it has on various

science fields.science fields.

What is Chemistry?What is Chemistry? Definition: The study of the Definition: The study of the

composition of matter, and composition of matter, and the changes the changes (transformations) it (transformations) it undergoes.undergoes.

Chem from Egyptian word Chem from Egyptian word keme which means “earth”keme which means “earth”

Grew from human curiosity Grew from human curiosity with the world.with the world.

http://www.youtube.com/watch?v=I-3DEFwHEzs

Five Branches of ChemistryFive Branches of Chemistry Organic Chemistry – carbon containing substances.Organic Chemistry – carbon containing substances.

Inorganic Chemistry- non-carbon containing substances.Inorganic Chemistry- non-carbon containing substances.

Analytical Chemistry – the composition of substances.Analytical Chemistry – the composition of substances.

Physical Chemistry – describing the behavior of Physical Chemistry – describing the behavior of substances.substances.

Biochemistry – study of living substances.Biochemistry – study of living substances.

Why Study Chemistry?Why Study Chemistry? Chemistry is everywhere and makes up everything.Chemistry is everywhere and makes up everything.

You You breathebreathe chemicals, you chemicals, you drinkdrink chemicals, you chemicals, you washwash in chemicals, you in chemicals, you eateat chemicals, you chemicals, you thinkthink using using chemicals, you chemicals, you tastetaste chemicals, you chemicals, you smellsmell chemicals, chemicals, you you movemove using chemicals. using chemicals.

You should know something about the technologies that You should know something about the technologies that are used in the world.are used in the world.

You should know about the foods you eat, and the You should know about the foods you eat, and the chemicals that affect your health.chemicals that affect your health.

http://www.youtube.com/watch?v=AbfW_CMMe48&feature=related

Checkpoint

What is Chemistry and why is it valuable to us?

MaterialsMaterials

MetalsMetals: gold, silver, platinum, brass, bronze, : gold, silver, platinum, brass, bronze, stainless steel, iron, nickel, copper, aluminum…stainless steel, iron, nickel, copper, aluminum…

CrystalsCrystals: diamonds, glass, ice, sugar, marble, : diamonds, glass, ice, sugar, marble, quartz…quartz…

PlasticsPlastics: PVC, teflon, nylon, styrofoam, : PVC, teflon, nylon, styrofoam, polyester…polyester…

LiquidsLiquids: water, alcohol, oils, paints…: water, alcohol, oils, paints… GasesGases: air, helium, neon, argon…: air, helium, neon, argon… SolidsSolids: wood, stone, sand, ceramics…: wood, stone, sand, ceramics… Natural FibersNatural Fibers: wool, cotton, hemp…: wool, cotton, hemp…

EnergyEnergy

Sources: Electricity, Sources: Electricity, petroleum, coal, petroleum, coal, wood, wind, wood, wind, hydroelectric, nuclear, hydroelectric, nuclear, batteries, solar, batteries, solar, photosynthesis, photosynthesis, natural gas natural gas (methane), human (methane), human (bicycles)…(bicycles)…

Medicine and BiotechnologyMedicine and Biotechnology Health ProductsHealth Products: vitamins, growth hormones, drug : vitamins, growth hormones, drug

delivery systems, high blood pressure medicine, delivery systems, high blood pressure medicine, cloning…cloning…

Disease ControlDisease Control: antibiotics, diabetes, cancer, AIDS : antibiotics, diabetes, cancer, AIDS (HIV)…(HIV)…

Plant BiotechPlant Biotech: Genetic engineering, pest resistance, frost : Genetic engineering, pest resistance, frost resistance, plant hormones, root generation…resistance, plant hormones, root generation…

BiomedicalBiomedical: artificial heart, kidney machines, joint : artificial heart, kidney machines, joint replacement, synthetic skin…replacement, synthetic skin…

Who do you picture using Who do you picture using Chemistry?Chemistry?

Who uses Chemistry?Who uses Chemistry?

Flavor Developer

FDA Inspector Nutritionist

Farmer

Food Scientist

FOOD

Pharmacist

Phys. Therapist Geneticist

Chemotherapy

Dentist

MEDICINE

Electrical

Chemical

Biochemical Civil

Mechanical

Nuclear

Solar

ENGINEERING

Oceanographer

Climatology

Meteorology

Gemologist/Jeweler

Geologist

Archeologist

EARTH

Pool Technician

Dry Cleaner

Firefighter

Waste/H20 Treatment

Auto Mechanic

Waste Mgmt

SERVICE

Science CareersScience Careers

Have you ever Have you ever thought about a thought about a career in science?career in science?

How might science How might science impact you even if impact you even if you do not choose a you do not choose a career in science?career in science?

Group Activity

Write 3 words that come to mind when you think of the Scientific Method.

Pair-up and choose 3 words among the group that seem to be most important.

Now as a large group (class) filter your choices down to three final words that are associated with the Scientific Method.

1.3 Thinking Like a Scientist1.3 Thinking Like a Scientist

Objective 1:Objective 1:

Describe the steps involved in the Describe the steps involved in the scientific method.scientific method.

The Scientific MethodThe Scientific Method

1. Use senses to obtain 1. Use senses to obtain informationinformation

2. Proposed Explanation2. Proposed Explanation

3. Test your hypothesis3. Test your hypothesis

4. Extensively tested 4. Extensively tested explanation of why explanation of why experiment works.experiment works.

2. HYPOTHESIS

3. EXPERIMENTS

1. OBSERVATION

4. THEORY

HOMEWORKHOMEWORK

Chapter 1 Review p. 25; 16-28 all.Chapter 1 Review p. 25; 16-28 all.

The Scientific MethodThe Scientific Method

Theory

Extensively Tested Explanation of why Exp worksDocument your Theory