Physical & Chemical Physical & Chemical Changes Changes By : NadyaLevel : 5

Introduction Introduction This week I am doing an

experiment on chemicals, I will melt a candle, a camphor, and some sugar with fire.

If something can be changed and can form into it self with out changing substance, it does a physical change, But if the substance change, it does a chemical change.

ObjectiveObjectiveWant to know physical and

chemical changes

Hypothesis Hypothesis Candle is one of the physical

changes.Sugar is one of the chemical

changes.Camphor is one of the chemical

changes.

Hypothesis Hypothesis A measure glass A candleA camphor 25 grams of sugarA heaterA light matchA scale

Procedure Procedure 1. First, put sugar in the measure

glass.2. Second, put the measure glass on

the heater. 3. Third, wait until the whole sugar

melts.4. Then observe it and write it on a

table.5. Do the same for the candle and

the camphor.

Result Result Materials Before

appearance After appearance

Candle Rectangle, white Transparent, hard

Camphor Round, pink Pink, hard

Sugar Cristal, white Chocolate, hard

AnalysisAnalysisA part of my hypothesis was

wrong, I said that a camphor does a chemical change, but I was wrong because the camphor is one of the physical changes, and not the chemical changes.

Summary Summary Now I know that a candle is one

of the physical changes, the camphor is one of the physical changes, and the sugar is one of the chemical changes

Thank you for your Thank you for your attention attention I close this presentation with: assalamualaikum warohmatullahiwabarokatuh.