40 examples of physical and chemical change
Answers
Answer:
CHEMICAL CHANGES:
1)burning of coal
2)formation of curd from milk
3) electrolysis of water
4) rusting of iron
5) bursting of cracker
6) cooking of food
7) digestion of food
8) germination of seed
9) baking of cake
10) boiling of egg
11) formation of wine
12) colour change in leaves
13)rotting of food materials
14)ripening of fruits
15) photosynthesis
16) developing of photography
17) burning of LPG
18) formation of hormones
19) formation of scum
20) yellowing of teeths
PHYSICAL CHANGES:
21) chopping wood
22) boiling of water
23) breaking a glass
24) crushing a can
25) dissolving sugar and water
26) mixing sand and water
27) mixing salt and sand
28) freezing
29) frost formation
30) solidification
31) dissolution
32) melting
33) smoke formation
34)vaporization
35) shredding a paper
36) changes in colour
37) sublimation
39) change in size or shape
40) change in state of matter