Question

state any three types of physical changes that may take place when a substance is heated?​

Answer 1

Physical Changes are-

1. Melting

2. Sublimation

3. Break down

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Answer 2

Melting an ice cube

boiling water

mixing sand and water

dissolving sugar and water

physical changes are changes affecting the form of a chemical substance but not its chemical composition

examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape,size,colour,volume and density