Chemistry

Welcome to Chemistry!! In this course, we will examine how chemistry intersects with every aspect of our daily lives. Consider some of these fascinating facts as we seek to learn more about the chemistry behind them through this course…

• Hydrogen is the first element on the periodic table. It has an atomic number of 1. It is highly flammable and is the most common element found in our universe.
• Liquid nitrogen boils at 77 kelvin (−196 °C, −321 °F).
• Around 1% of the sun’s mass is oxygen.
• Helium is lighter than the air around us so it floats. That's why it is perfect for the balloons you get at parties.
• Carbon comes in a number of different forms (allotropes). These include diamond, graphite, and impure forms such as coal.
• Although it is still debated, it is largely recognized that the word “chemistry” comes from an Egyptian word meaning “earth”.
• The use of various forms of chemistry is believed to go back as long ago as the Ancient Egyptians. By 1000 BC, civilizations were using more complex forms of chemistry such as using plants for medicine, extracting metal from ores, fermenting wine, and making cosmetics.
• Things invisible to the human eye can often be seen under UV light, which comes in handy for both scientists and detectives.
• Humans breathe out carbon dioxide (CO₂). Using energy from sunlight, plants convert carbon dioxide into food during a process called photosynthesis.
• Chemical reactions occur all the time, including through everyday activities such as cooking. Try adding an acid such as vinegar to a base such as baking soda and see what happens!
• Water expands as it drops in temperature; by the time it is frozen it takes up about 9% more space. Consider how a glass of ice water actually has less volume once the ice melts.
• Often formed under intense pressure over time, a crystal is made up of molecules or atoms that are repeated in a three dimensional repeating pattern. Quartz is a well known example of a crystal.                                        (http://www.sciencekids.co.nz/sciencefacts/chemistryy.html)

I look forward to journeying through this course with you! As you have questions or concerns, please don’t hesitate to let me know!

Homework

The following assignment outline is provided for your convenience to help you plan and prepare your studies. As much as possible, we will follow this guide. Any schedule changes or adjustments will be announced in class with as much advance notice as possible. Ultimately, it is the student’s responsibility to keep track of assignments.