Jump to main content

Ninth Grade, Green Chemistry Science Projects (5 results)

The goal of green chemistry is to make sure that chemical processes and products are produced in ways that reduce or eliminate the use and creation of toxic material. It encourages the use of as little energy and as few materials as possible and emphasizes using renewable resources. The idea is to be environmentally friendly and sustainable from the beginning of the process rather than figure out how to treat waste after a product is made or discarded.

Girl carrying out a titration in chemistry class.

Green chemistry can be applied to improve existing products or processes. For example, green chemistry is being applied to clothing manufacturing to make the creation of synthetic fabrics more environmentally friendly and ensure that the dyes used to color all clothes use fewer water resources and do not pollute. The same green chemistry principles can be used to make new products like biodiesel made from plants, to replace diesel made from fossil fuels.

The twelve principles of green chemistry provide a framework for scientists and engineers to follow when designing new products or improving existing materials and processes.

  1. Waste prevention: Instead of treating or cleaning up waste in the end, prevent it from being made.
  2. Atom economy: Incorporate as much of the starting materials (atoms) into the final product as possible.
  3. Less hazardous chemical synthesis: When creating complex compounds from simpler materials (chemical synthesis), focus on using and creating materials that do not harm humans or the environment.
  4. Design safer chemicals: When designing chemical products, make ones that are effective (do the job intended) but have little or no toxicity.
  5. Safer solvents and auxiliaries: The use of chemicals like solvents, separation agents, etc., that help a chemical process should be either eliminated or, if that isn't possible, made as environmentally friendly as possible.
  6. Design for energy efficiency: Run chemical reactions at room temperature and pressure whenever possible as it takes extra energy to heat, cool, or alter pressure.
  7. Use renewable feedstocks: As much as possible, raw materials (also called feedstocks) should come from renewable sources instead of ones that can be depleted. Examples of renewable feedstocks include agricultural products and waste from other processes.
  8. Reduce derivatives: Derivatization, like using blocking or protecting groups or any temporary modification to a compound, should be avoided if possible. Creating derivatives uses additional reagents and may create more waste.
  9. Use catalysts: Minimize waste by using catalytic reactions. Catalysts are effective in small amounts and can carry out a single reaction many times. They are preferable to stoichiometric reagents, which are used in excess and carry out a reaction only once.
  10. Design for degradation: Design chemical products to break down to harmless substances after use so that they do not accumulate in the environment.
  11. Real-time pollution prevention: Include in-process, real-time monitoring and control during synthesis to minimize or eliminate the formation of byproducts (unwanted products).
  12. Minimize the potential for accidents: Choose chemicals and their physical forms (solid, liquid, or gas) to minimize the potential for chemical accidents, including releases to the environment, explosions, and fires.
Filter by
Science Fair Project Idea
Imagine a wonderful summer day at the beach. You play in the sand, swim in the ocean—and, of course, put a lot of sunscreen on. The sunscreen protects your skin from harmful ultraviolet (UV) radiation. Special ingredients absorb or reflect the UV rays so they do not harm your skin. Different types of sunscreen have different types of ingredients, and some of them can be harmful to the environment—especially if they get into the ocean. In this science project you will put your… Read more
Science Fair Project Idea
The iodine clock reaction is a favorite demonstration reaction in chemistry classes that usually requires toxic or hazardous chemicals. During the reaction, two clear liquids are mixed, resulting in another clear liquid. After some time, the solution suddenly turns dark blue. The reaction is called a clock reaction because the amount of time that elapses before the solution turns blue depends on the concentrations of the starting chemicals. In this green chemistry project, you will use a… Read more
Science Fair Project Idea
Are biofuels the wave of the future? People often talk about these plant-derived fuels as a way to someday cut down on our dependency on non-renewable carbon-based fuels, like gasoline. Ethanol (a type of alcohol) is a common biofuel used today. In the United States, ethanol is a common biofuel additive to normal gasoline. In fact, some states mandate that when you fill up your gas tank, 10 percent of the total fuel volume be made of ethanol. Brazil, the world's second largest user of… Read more
Science Fair Project Idea
Can you imagine clothing, handbags, or shoes made from seaweed or spider silk? To become more sustainable, the textile industry is looking for ways to develop more eco-friendly fabrics. Biofabrics derived from living organisms such as seaweed or bacteria have been proposed as a potential alternative to conventional fibers. In this science project, you will make several biofabrics from alginate (seaweed) and conduct tests to find out which one is most suitable as a textile replacement. Read more
Science Fair Project Idea
Do you love the look and feel of leather? Many luxury items like handbags, belts, wallets, and coats are made from leather. What if you could make your own vegan leather in a few weeks? Could it be a greener, more sustainable option than cowhide leather? In this science project, you will grow your own vegan leather from kombucha and see how different growing conditions affect the resulting leather. Read more
Free science fair projects.