Synthetic materials are made from natural resources. Synthetic materials are made by chemically changing the starting substances to create a material with different characteristics. Some examples of ...

Explains chemical changes, which occur when two or more materials combine to form new substances. It describes various examples of chemical changes, such as burning wood, digestion, and photosynthesis ...

The film explains the concept of chemical changes, where two or more materials combine to form entirely different substances. It highlights everyday examples of chemical changes, such as burning wood ...