1. Define science (without looking it up!). 2. Define chemistry (without looking it up!).. Day Chem I

1. What is science? 2. What is chemistry? Day Chem I

Book Assignment: Skim / review section 1.1 and answer #s 2, 3, 5, and 6 AND skim / review section 1.2 and answer #s 9, 11(be thorough), and 12 – due tomorrow – Tuesday 9-13 Day Chem I

Science – discipline, knowledge, skill, art What is Science?

Our Definiton the purpose of science: In the simplest terms, science attempts to... EXPLORE and EXPLAIN... the natural world.

How Does Science Accomplish Its Goal? EXPLORE -- By making objective observations of events in nature.

How Does Science Accomplish Its Goal? EXPLAIN -- By applying the principle of cause and effect.

What is Science?

What is Chemistry? Chemistry – study of the composition of matter, and the changes that matter undergoes

Chemistry Is the science that investigates the composition and interaction of existing compounds and elements and engages in the synthesis and analysis of compounds. --Webster’s It is the study of MATTER. OR

Matter Is... Anything that: Takes up space AND has mass

What Is This ‘Stuff’ We’ve Called Matter? One way of defining matter is as the stuff of which everything is made.

The Branches of the Chemis - Tree Inorganic Organic Biochem. Analytical Physical

Organic chemistry – the study of most carbon containing compounds Inorganic chemistry – the study of all substances not classified as organic, mainly those compounds that do not contain carbon Physical chemistry – uncovers the physical laws underlying changes in matter Analytical chemistry – the identification of the components and composition of materials – what’s there and how much Biochemistry – the study of substances and processes occurring in living things

The Purposes of Chem Lab To help students visualize chemistryTo help students visualize chemistry (You learn by doing.) (You learn by doing.)  To develop the ability to solve problems  To develop certain techniques (measurement, purification, etc.) (measurement, purification, etc.) which are essential to chemistry which are essential to chemistry  To promote a teamwork approach to doing science (Cooperative learning)

Prelab (time pending)

1. Put your postlab (from last week) on the cart if you haven’t already. 2. Define science, chemistry, and matter. E_______ + E_______ Use the 2 nd def. on the prelab

Period 3: Penicillin – How? Who? Period 5: Carl Sagan?

Jeff Tyler Dalvin Alanna Mike Day Richard David Travis Nydia Kaylee Josh