Chlorophyll: The Plant's GREEN Pigment
Green plants are green because they contain a pigment called chlorophyll. Chlorophyll absorbs certain wavelengths of light within the visible light spectrum. chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the organelle known as chloroplast.
http://www.webexhibits.org/causesofcolor/7A.html
Research on this green pigment started off as a team effort, in which the following poster was created using the online tool easel.ly. It was then followed by the students' individual presentations.
Is chlorophyll needed for Photosynthesis?
Experiment carried out by Form 4 students
Are Green Potatoes Safe to Eat?
Follow the following infograph to learn the facts!
How many pigments are present in leaves?
Follow the following experiment to check how pigments may be extracted from leaves.
Why are flowers so colourful?
The colours of flowers are not just for humans to enjoy, but actually serve far more significant purposes. Flowers need to reproduce, and for those plants that depend on reproduction through pollination, colours are very important. Brightly coloured flowers attract insects and bees, which are the largest contributors to plants’ reproduction, as they can carry pollen to other plants. Thus, flowers are brightly coloured to attract insects. The following presentation by Sarah and Shanice, describes in further details the importance of brightly coloured flowers.
http://www.scienceabc.com/nature/what-makes-flowers-so-colourful.html
The following presentation explains the importance of colour in flowers with respect to the continuation of life. Insects, which help during pollination, are attracted to the bright colours in flowers. How do insects help? The presentation was prepared using the Adobe Sparks Page tool.