Year+9+student+resources

Chapter 5 Cells



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Plant cells and chloroplasts

Assessment task: 'Cancer' (stay tuned!)

Chapter 4 Living with Microbes

Spirulina algae http://www.daenvis.org/technology/Spirulina.htm

media type="file" key="spirulina04df40x - Computer.m4v" width="300" height="300"

Very special scientific quiz: 'How many germs live on your phone?' http://theoatmeal.com/quiz/phone_germs?hl=en_GB


 * Term 4** *
 * Chapter 2- Light and Sound**


 * Colour addition (mixing of red, green and blue LIGHT, not paint!)**
 * http://lectureonline.cl.msu.edu/~mmp/applist/RGBColor/c.htm**


 * Colour subtraction (mixing of paint, not light!)**


 * http://www.colorbasics.com/AdditiveSubtractiveColors/[[image:s-1.gif]]**

The world is full of colors. Some researchers report that humans can distinguish about 16 million different colors. But what's more interesting is that most of the colors we see around us and all the colors we see on a TV or computer monitor can be created from just three different colored lights. How are all the colors made from just three different colors? Simply by combining the light in different ratios. That's it. Adjusting the brightness of three colors in different ways creates all the colors you see in this graphic:


 * The Englishman, Moses Harris (1731-1785), published what he called the //Natural System of Colours// in 1766. He developed two color wheels, one using the three "primitive" colors of red, yellow and blue, the other using the three "compound" colors of orange, green and purple. His purpose was to make it easy to find a complimentary color, by looking directly opposite to the other side of the wheel.**
 * http://www.harris.bb/colour_wheel.cfm**

The colour wheel is divided into three categories: primary, secondary, and tertiary. The three primary colours are red, yellow and blue. These colours are considered to be foundation colours because they are used to create all other colours. By combining two of the primary colours, three secondary colours are formed. They are orange, green and violet. The six tertiary colours are made by combining a primary and an adjacent secondary colour. These colours are red-orange, red-violet, yellow-green, yellow-orange, blue-green and blue-violet. Using the colour wheel, six different colour schemes can be utilized to help you decorate your home. ||
 * [[image:http://www.harris.bb/images/colorwheel.jpg]] ||  || THE COLOUR WHEEL**

Interesting! http://graphics.stanford.edu/courses/cs178/applets/gamutmapping.html

Electromagnetic Spectrum the numbers at the bottom are the WAVELENGTH of each colour in nanometres