Chemical composition has more than one meaning. If you’re discussing a substance with one component, such as water, the chemical composition means the type and arrangement of elements and molecules within the substance.
If you’re discussing a substance with more than one component, chemical composition refers to the components within the substance and their ratios – basically a recipe of ingredients.
- The chemical composition of pure substances – or elements – is recorded using the empirical formula. For example, water is written as H20 – two atoms of hydrogen, one atom of oxygen.
- Honey contains about 82 percent carbohydrates, or sugars, such as fructose, glucose, and sucrose. Honey contains protein, amino acids and vitamins, minerals, and antioxidants.
- Chewing gum’s chemical composition includes sugar or artificial sweeteners, softening agents, such as glycerin or vegetable oil, flavorings, and gum base. Originally, gum bases were made from tree resins. Today, most of them are made in a lab. The recipes for these gum bases are top secret.
- Ever wonder what’s in your shampoo? Shampoos are made in laboratories by cosmetic chemists. They contain mostly water. Surfactants, such as sodium lauryl sulfates, are made from fatty acids found naturally in coconut oil or soybean oil. Surfactants trap oil in your hair so it can be rinsed away. Shampoos also contain foaming agents, thickeners, conditioners, and preservatives.
Component: a part or ingredient of a substance
Resin: a thick, waxy substance
Surfactant: a substance capable of isolating oil
Q and A
Question: How do manufacturers invent new products?
Answer: Manufacturers use chemists to develop new products with specific characteristics. For example, a shampoo manufacturer might ask a cosmetic chemist to develop a new shampoo that makes hair extra shiny and soft. The chemist knows which ingredients produce those characteristics and experiments in a lab to get the chemical composition just right.
Visit the Science Channel to watch videos of how common products are made.
Head over to PBS for more videos about common household products, such as crayons, fortune cookies, and tennis shoes.
Cite This Page
You may cut-and-paste the below MLA and APA citation examples:
MLA Style Citation
Declan, Tobin. " Chemical Composition Facts for Kids ." Easy Science for Kids, Oct 2020. Web. 21 Oct 2020. < https://easyscienceforkids.com/chemical-composition/ >.
APA Style Citation
Tobin, Declan. (2020). Chemical Composition Facts for Kids. Easy Science for Kids. Retrieved from https://easyscienceforkids.com/chemical-composition/
We've recently added
- How To Build a Winogradsky Column and Learn About Soil Science
- Potato Light Bulb Experiment
- How To Use Friction to Pick Up Bottle of Rice
- How To Make Popcorn Dance
- Vinegar and Baking Soda Fire Extinguisher
- Power of Bleach
- Comparing Surface Tension of Liquids with Pennies
- Ice Cream Chemistry
- Using Distillation to Purify Water
- Filter Water with Dirt
- Build a Balloon Barometer
- Build Your Very Own Seismograph
Sponsored Links :