1. How trees grow

2. Keywords Chlorophyll Capillary action Germinate Heartwood Osmosis
Photosynthesis
Plumule
Radicle
Sap
Sapling
Sapwood
Transpiration

3. Definitions
Chlorophyll ; (noun) - any of a group of green pigments found in photosynthetic organisms
Capillary action ; (noun) - a phenomenon associated with surface tension and resulting in the elevation or depression of liquids in capillaries
Germinate ; (verb) - cause to grow or sprout
Heartwood ; Centre of the tree.
Photosynthesis ; Photo = light, Synthesis = produce or build.
Transpiration ; (noun) - the emission of water vapor from the leaves of plants