The film explains the concept of chemical changes, where two or more materials combine to form entirely different substances.

Instead, the atoms rearrange themselves to form new chemicals. This is known as a chemical change. The other kind of change in chemistry is a physical change, which is when a substance changes ...

Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical ... total mass of the substance and the liquid it dissolves in does not ...

The pH scale measures the acidity or alkalinity of a solution. Acids and bases have a wide variety of uses and can react together in neutralisation reactions. Chemical reactions Chemical reactions ...

Students will be able to explain that mixing substances can cause a chemical reaction ... to hard water to create soap scum. Then they will compare the bubbling ability of soap and soap scum to find ...