Or download our app "Guided Lessons by Education.com" on your device's app store.
How to Prevent Erosion
Grass might not be the most exotic looking plant in the world, but it is one of the most important. Its pretty green color comes from the chlorophyll inside, which is a pigment that plants use in photosynthesis. Photosynthesis is the process in which plants convert light energy from the sun to chemical food energy, and chlorophyll is essential to the first steps of that process. Grass plants store the food energy, and when grazing animals like buffalo, deer, or cows eat the grass. If you eat beef or drink milk, you are getting energy from the sun that was originally stored as food energy by grass!
Grass is also important because it reduces the erosion of soil. Erosion involves the carrying away of earth materials by water, ice, and wind. Soil can take millions of years to form, so we certainly don’t want it carried away, and humans have spent years learning how to prevent erosion. In this experiment, you are going to see how the presence of grass affects the rate of erosion, but first you need to learn a bit more about the structure of grass.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.