
Elementary school
What do you think will happen if the plants are too close together? Will there be enough food, water, and sunlight. What else might be in short supply?

High school
What is PH and how does it affect the suitability of soil for plant growth?

Elementary school
Of all the organisms in the natural world, green plants are the only ones that manufacture their own food. This process is called photosynthesis and begins when light strikes the plant's leaves (both sunlight and artificial light can power this process). Cells in the plant's leaves, called chloroplasts, contain a green pigment called chlorophyll which interacts with sunlight to split the water in the plant into its basic components.

Elementary school
The purpose of this experiment is to find out which depth is best for growing bean plants in potting soil. The procedure of this experiment was first to plant the seed in four different depths.

High school
Mariotte siphons or Mariotte bottles (figure 1) are devices that provide a constant pressure that will deliver a constant rate of flow from closed bottles or tanks. The flow rate will depend upon the head as defined in figure 1 and not on the height of the free water surface. These devices find many uses where a nonchanging pressure is needed. One application in agriculture is for applying liquid fertilizer to field crops.

High school
The following lesson can be used as a way of approaching the scientific method during or after a unit on plant growth and development. This investigative activity will enable students to explore the effects of specific plant hormones (abscisic acid and gibberellic acid) on seed germination. They will formulate a hypothesis as well as design and perform the experiment to test the hypothesis.

Elementary school
Transpiration is a process where water vapor is lost through parts of plants. In order to conclude which plants transpire more, six different plants were used to collect data on amounts of water vapor given off.

Elementary school
The purpose of this lab exercise is to provide you with an opportunity to become familiar with common methods of vegetative (asexual) propagation.

Elementary school
The purpose of this experiment is to determine the best drought-resistant grass. The game of golf is very important to me and I know that growing the perfect grass is a major objective in the construction of golf courses. Botanists and golf course designers are always looking to use the best drought-resistant grass available in order to save money. This project will give me an insight to the field of botany as well as landscape architecture.

Middle school
The purpose of this experiment was to find the vitamin that prevents antioxidants most efficiently. It is predicted that Vitamin C will be the best preventive vitamin against antioxidants. This will allow the seeds to grow.