Algae is an organism that grows in many different areas, thus being readily available for a school science project.
The study of algae is one that many incorporate into classroom experimentation and is recommended for science fair projects. The organism grows in rivers, oceans and lakes, as well as on everyday items such as fence posts, fish tanks and tree trunks. It is versatile in that it is found in a wide variety of moisture-exposed conditions.
Does Fertilizer Affect the Growth of Algae?
Experiment with fertilizer and its effect on the growth of algae. In four glass jars filled with pond water, place varying amounts of fertilizer; for example, the first jar will contain no fertilizer, the second will contain 10 ml, and the final jar will contain 25 ml of fertilizer. The first jar containing no fertilizer will become the control sample. Place the three jars outside in direct sunlight and record the findings each week.
What is the Most Effective Method for Controlling Algae?
Fill three buckets half-way with pond water, and place an empty clear plastic soda bottle with a few rocks for weight in the center of each. One bucket will be the control sample and will not have an algae-control method. Place a floating pond plant in one bucket and one tablespoon of barley extract into the second bucket. Rest the buckets in direct sunlight and record weekly the number of algae rings, clusters and fragments on the clear plastic bottle to find which method of algae control is the most effective in pond water.
Will Algae Grow More Quickly in Cool or Warm Temperatures?
In three clear glass jars, pour a large sample of pond water filling the jars about half-way full. Place the three jars in varying places with temperatures at 50, 60 and 70 degrees. A heating pad may be used for the higher temperature. Observe and record the findings periodically for a period of four weeks to see in which temperature algae will grow the fastest.
Does Algae Grow Faster in Salt Water or Fresh Water?
Collect a sample of algae or purchase from a science website or catalog. Add 1/2 teaspoon of salt to 100 ml of water to make ocean-like saltwater. Use 100 ml of purified water for the freshwater sample, and place one algae sample in each water container. Place the containers in direct sunlight, and record the results over a specific time period to find which type of water grows algae more quickly.
Tags: pond water, direct sunlight, direct sunlight record, sunlight record, will contain