The effect of glucose on the growth of mung beans as measured in percentages of glucose mixed in water
Annie Spendrup

I. Purpose

The purpose of this lab was to examine the effect of a glucose-water mixture on the growth and development of mung beans. Different percentages of glucose (0%, 1%, 2%, 3%, and 4%) in 40 millilitres of distilled water were used to water the mung beans.

The hypothesis is that seeds watered with a glucose water solution will grow faster and taller than the ones not watered with glucose mixed into the water because the glucose will give extra nutrients for the seeds and will provide extra glucose which will help then grow taller in a shorter amount of time.

II. Variables

Independent variable

The independent variable is how much 10% glucose solution is added to 40 ml of distilled water in order to create 1%, 2%, 3%, and 4% glucose solutions to use to water the mung beans.

Dependent variable

The dependent variable is how quickly it takes for the beans to sprout both roots and sprout. The number of days until the roots and stems sprout will be recorded, as well as how long the sprouts are.

Controlled variables
What needs to be controlled? Why does it need to be controlled / How would it impact the results? How will it be controlled?
Health of the beans when planted If the seeds weren’t in good health throughout the experiment (included in the beginning) the beans would either not grow or would not grow at all. This would skew the data as the data would depend on how long it took for the seeds to take root and grow. The seeds will be selected based on how they look. They will need to be a bright green, oval in shape, and have a creamy white hilum.
Amount of water given to the plants If each set of beans had differing amounts of water, the seeds with less water might not have evenly distributed water for all the