Question

physical and chemical changes - 7.6c
7 the diagram provided shows ways matter can be changed. use your knowledge of matter to complete the diagram
drag and drop the answers in the correct boxes
physical change temperature change chemical change
gas produced bending light produced cutting

Explanation:

Step1: Define physical and chemical changes

Physical changes do not change the chemical composition of a substance, while chemical changes result in a new substance being formed.

Step2: Categorize the given changes

• Bending and cutting are physical changes as they only change the shape of the substance without altering its chemical makeup.
• Gas produced, light produced, and temperature change (in the context of a chemical reaction) are signs of chemical changes as they indicate the formation of a new substance.

Answer:

Left - hand side (Physical Change branch):

• substance can be changed by: bending, cutting

Right - hand side (Chemical Change branch):

• evidence new substance was formed: gas produced, light produced, temperature change (when due to chemical reaction), color change, precipitate formed