Julian's Science Fair
Projects by Grade Level
1st 2nd 3rd 4th 5th 6th
7th 8th 9th 10th 11th 12th
Home Primary School Elementary School Middle School High School Easy Projects Advanced Award Winning Popular Ideas

Botany science fair project:
Which colour of light is best for growing plants: green, red or white?

Science Fair Project Information
Title: Which colour of light is best for growing plants: green, red or white?
Subject: Botany
Grade level: Primary School / Kindergarten - Grades K-3
Project Type: Experimental
Cost: Low
Awards: None
Affiliation: Canada Wide Virtual Science Fair
Link: http://www.virtualsciencefair.org/2006/lund6c2/index_files/frame.htm
Short Background

Photosynthesis is a process used by plants, some protists, and some bacteria to make food. It makes glucose (a kind of sugar) and oxygen from carbon dioxide in the air and water. Cells (very small parts that make up a plant or animal) use it to create energy to live.

Photosynthesis starts when light touches a green part of a plant. Each green cell has small parts called chloroplasts inside of them. Single photons of light hit green chemicals in the chloroplast, causing an enzyme to break apart water. Water, when broken, makes oxygen, hydrogen, and energy. The energy is used by a protein that lets light into the cell. The light cannot get out of the cell until another protein lets them, and this protein uses the energy from the escaping light to make ATP. While this is happening, the hydrogen and oxygen join broken up carbon dioxide to form glucose. This glucose is later used in cellular respiration to form more ATP.

Photosynthesis can only occur between 32-95 degrees F (0-50 degrees C), and is most effective at room temperature (72 degrees F, 25 degrees C). Photosynthesis does not work at night or during cloudy days, because not enough light hits the plants.

See also: Photosynthesis Experiments & Background Information

Source: Wikipedia (All text is available under the terms of the GNU Free Documentation License)

Useful Links
Science Fair Projects Resources
Citation Guides, Style Manuals, Reference
General Safety Resources
Electrical Safety FAQ
Botany Science Fair Books


Follow Us On:

Privacy Policy - About Us

Comments and inquiries could be addressed to:

Last updated: June 2013
Copyright 2003-2013 Julian Rubin