3.which process involves a physical change?
A. rusting nail
B. ligthting a match
C.Burning wood
D. tearing of paper into smaller pieces
4.Your little brother and sister are playing you saw a rusting nail on a wood near them that may couse harm when stepped on,what will you do?
A. pick up the nail and keep it in safe place
B. ignore it and join your littlebrother and siter playing
C. call an ambulance for emergency
D. Ask your father why they are nails on the floor
5.What will happend to the ligthted candle when you cover it with a jar? it will...
A. Change color
B. grandually stops
C. contine borning
D.change in size​