Name: Rachel Unterman
I am 11 years old. I have seen purple cabbage.
Why is grass green, not purple?
All land plants contain Chlorophyll which makes them look green. However,
some plants have other colors called pigments which hide then green color of chlorophyll.
Many plants with purple pigment use the darker color like we use sunglasses, it shades
the plant from parts of the sun's light that would harm the plant. Different colors
protect the plant from different types of harmful sun rays. Grass must not need to be
protected from the same type of sun rays than does the cabbage.
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Update: June 2012