Power Point Slide Shows
Unit 1 - Scientific Inquiry & Physical Science Review
Chapters 1 & 2 of Course Text
- Understand and Use Scientific Methods to Conduct Science
- Understand the Fundamental Concepts of Hypothesis, Experimentation Theory & Law
- Understand Measurement, Accuracy & Precision
- Know Fundamental Characteristics & Classification of Matter
Know the Difference between Chemical & Physical Properties and Change
Objectives: Students will be Able To
- Design, Perform and Analyze Experiments
- Identify, Determine and/or Select Independent & Dependent Variables, Constants, & Controls
- Identify & Discuss Sources of Error & Calculate Percentage of Error
- Make valid & accurate measurements of various properties of matter
- Use Scientific Notation & Significant Digits
- Make Unit Conversions and Conduct Dimensional Analysis
- Make Graphs of Measured Data
- Write Laboratory Reports
- Use properties of matter to distinguish between physical and chemical changes and different types of matter
- Solve word problems about density & unit conversions
Answer Key to Unit 1 Test Study Guide
I have reproduced the answers that I went over the day before you took the Unit 1 test (Wednesday, January 25 - Study Guide Review). Along with the answers to the multiple choice questions, I have included references to the pages in your textbook that support that answer. (READ THE BOOK!)
Sample Background Section for Separation Lab
Mixtures are prevalent in our day-to-day lives. Air, food, even blood are all mixtures. Throughout human history, separating and handling materials and mixtures have been part of human struggle and progress. Iron, aluminum and gold generally must be separated from their ores. The entire nation of Saudi Arabia relies on separating freshwater from sea water.
Generally, separating mixtures relies on exploiting differences of various physical properties. A collection of marbles can be separated based on their color, size, or ‘roundness.’ The mixture separated in this lab experiment included four distinct components: sand, salt, iron and wood chips. Although some other separation strategies could be employed, the experimenters selected 5 distinct properties to exploit to achieve high levels of separation of the four components: density, particle size, magnetism, solubility in water, and boiling point.
Using these 5 properties, some simple laboratory equipment and procedures, the 4 component mixture will be separated into 4 distinct streams at a recovery of 90% or better.
Chemical Bonding, Compounds and Alloys
Here is the slide show for this unit.
This is a list of polyatomic ions. Keep up with this list; you should try to memorize the names and formulas of the polyatomic ions