Question

Hl. Long Answer Questions.
1. Differentiate between physical and chemical changes with examples.
.
3. Describe chemical changes by giving examples of some processes and explaining them
4. Distinguish between the following giving suitable examples.
a. Natural and Human-made
b. Endothermic and Exothermic
Slow and Fast
d. Periodic and Non-periodic
e. Desirable and Undesirable
C.
IV. Challenge
1. What kind of changes (physical or chemical) does the fruit undergo during ripening?
2. What kind of change is: a. cutting of vegetables and b. cooking vegetables? How would you
differentiate between the two kinds of changes?
3. Is digestion of food a physical or a chemical changes why​

Answer 1

Answer:

physical changes means they do not change their molecules . chemical changes means they change their molecules.examples of physical and chemical changes are physical change-melting of ice . chemical change_ cooking of food natural materials are made by nature. human made are made by human.