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Welcome to Chemistry at PGEC...We will start the story off with a reenactment of the Hindenburg disaster. We will begin with a brief introduction to atoms and the conservation of matter. The difference between a physical change and a chemical change will be discussed. We will compare the types of chemical reactions and distinguish between exothermic and endothermic. With the introduction to chemistry out of the way, we will discuss the characteristics of the airship, watch the footage of the Hindenburg disaster with commentary by Herbert Morrison, discuss the dangerous properties of hydrogen, look at hydrogen use today and discuss other disasters throughout history.

The seminar will begin with a review of the Introduction to Science Show. We will be measuring length, mass, and volume. We will then calculate density using numbers in scientific notation and reporting the solution in correct significant figures. After reviewing the skills of a scientist, the scientific method, the metric system and variables. Students should complete the math skills, the collecting lab, the measuring lab.

Read Chapter 2.1 What is Matter?, 2.2 Matter and Energy & 2.3 Properties of Matter before coming to Seminar. Matter is all the stuff around us that has mass an occupies space. Everything else is Energy. Matter is composed of moving 'little lumps' called molecules, which are made of atoms. A substance that is made of only one kind of atom is an element. There are 117 known elements. The Kinetic Theory assumes that way the molecules in a substance move determines the phase of the matter.  Solids, liquids and gases are the three states of matter.  Pure substances are made of only one kind of material and have definite properties. Mixtures refer to combinations of two or more substances in which each substance retains its own properties. Heterogenous mixtures are not the same throughout. Homogenous mixtures are uniform throughout. Homogenous mixtures are also called solutions, however, the most common type of solution is described by a solid (the solute) dissolved in a liquid (the solvent). Physical properties can be observed or measured without changing the composition of matter. (appearance, texture, color, odor, melting/boiling point, density)   All changes of state (solid to liquid to gas) are physical changes. Chemical properties describe the way a substance may change or "react" to form other substances. Chemical changes, also known as chemical reactions, are when a substance is transformed into a chemically different substance. Students must complete the Heat vs. Temperaturte Lab. The chapter 2 Review, take the Kinetic Theory Quiz and the Matter and Energy Test must be completed.

Chemistry is the study of matter and how it changes. All notes, powerpoints and study guides for this unit are posted in the notes/reviews section. We start with an introduction to the atom and atomic theory. Once we can find the number of particles in an atom and draw the atom's diagram. We will look at how elements are arranged on the Periodic Table of Elements, including a periodic table test. Using the locations and groups of elements on the table, predicting how elements combine to form compounds becomes possible. We will balance chemical equations and investigate the types of chemical reations. We will review mixtures and solutions and add acids and bases to the mix. The May I Cut In? lab will investigate a single displacement, exothermic reaction and acids/bases. The 4th of July labwill give practice balancing equations and demonstrate the Law of Conservation of Mass. Practice notes/reviews often for success! The May I Cut In? Lab, the 4th of July Lab, the Chemistry Review, the Diagramming Atoms Activity, the Periodic Table Activity, the Mars Activity and the Chemistry Test need to be completed.