 
"If you're not part of the solution, you're part of the precipitate". Stephen Wright
Building Blocks:
- Significant Digits ... the rules, and a quiz.
- Diameter of a Molecule A simple experiment you can do to measure a molecule's diameter!
- Build a Molecule ... practice building simple molecules; ideal for Science 9 students.
- How Substances Combine ... learn the difference between elements, compounds, mechanical mixtures, and solutions ... with a quiz too!
- Learn the Periodic Table ... a free program that will help you learn the names and symbols of all the chemical elements.
 Chemicals, Compounds and Elements:
- Water ... learn all about the properties of this unique liquid ... a supplement to the Science 10 course.
- Sugars and Lipids ... a close look at these molecules.
- Polymers Chemistry 20/30 students can learn about polymers and elastomers on our Silly Putty page, and make their own.
- The Rubber Molecule ... make one from paper, and learn what they look like and how they're made.
- Diamond ... the hardest natural substance, and beautiful too.
- Chocolate ... where it comes from, and how it's made.
- Goop ... we made our own polymer sample!
- Hydrocarbons An introduction to organic chemistry.
- Methane ... find out more about this highly explosive but valuable gas.
- Air and Our Atmosphere ... what's in it, and where it came from.
- Plastic Wrap ... is it safe to microwave?
Properties and Reactions:
- Oxidizing Aluminum ... what happens when aluminum reacts with oxygen at high temperature.
- Photochemical Reactions ... make your own film and create an image!
- Why Salt Lowers Water's Freezing Point ... a complete explanation, and some home-made icecream recipes!
- pH ... why things are acids. An intro to pH for grade 9 students, and more detail for high school chemistry students.
- Combustion ... how things burn. (A simple explanation, and some demos).
- Density ... what it is, and how to calculate it.
- Adsorption ... find out how activated charcoal removes impurities from water (and what 'activated' means).
- Treating Sewage and Drinking Water ... find out how it's done.
- Changes of State & the Particle Theory ... applying heat causes vibration & movement of particles to increase. Includes some illustrative animations.
- Thixotropic Substances ... thixotropic and dilantant properties explained, with examples and a demonstration you can do.
Experiments and Investigations:
- Chromatography ... what it is and how it works.
- Candy Poppers ... what makes the sound when you put them in your mouth? Can you collect CO2 from these candies?
- Glue-On Fingernails ... are they really flammable? We find out!
- Simple Electrolysis ... separate water into oxygen & hydrogen with a 9v battery!
- Pringles and pH ... find out about acids, bases, precision, and accuracy, and why salt & vinegar Pringles burn your mouth.
- Hygroscopic Crystals ... we took apart a bunch of diapers, collected the hygroscopic chemical inside them (used to trap moisture), and did some experimenting. We even took pictures!
- Yeast and Making Bread ... learn about yeast, and how it helps you make bread.
- Making Paper ... make your own paper from recycled materials.
- Bubbles ... where do they come from, when you boil water? (Grades 3-6)
- How Strong is Ice? Find out, by doing a simple experiment. The quiz includes a bonus question for Jr/Sr High students.
- Compressing a Gas Use this simple interactive model to understand why a gas heats up when it's compressed.
- Boil Water in a Paper Cup ... a simple demonstration of the heat capacity of water.
- Electron Photon Interaction ... a visual demonstration of how photons raise the energy level of electrons in an atom, and how photons are later reemitted.
Industry:
- The Alberta Tar Sands ... what they are, and what we get from them.
Fun:
- Koolaid Colouring ... how to tint your hair with Koolaid.
- Hydrogen Power! ... fuel cells will power your car in the future.
- Dangerous Chemical Alert ... you may have this chemical in your home... find out what it can do to you!
Tools:
- The Periodic Table ... a stand-alone program you can download (210K zipped); a full periodic table with all the element information, plus it shows visually the change of physical state with change in temperature, and will also calculate molar mass of compounds. Get it here.
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Worsley School
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