Physical and Chemical Changes

In a physical change, no substances are formed. True/False?

• True

• False

Most of the physical changes are ____________ in nature.

What change does the picture depict?

• Physical Change

• Chemical Change

What change is depicted in the picture?

• Physical Change

• Chemical Change

All physical changes are reversible in nature. True/False?

• False

• True

All chemical changes are irreversible in nature. True / False?

• True

• False

Digestion is a Chemical Process and Change. True/False?

Extra Points if you give reason to your answer.

• True

• False

Pick out the physical changes.

PS: There is more than one in the options. :P

• Cutting hair

• Breaking Glass

• Photosynthesis

• Cooking

Pick out the chemical changes.

PS: There is more than one. :P

• Baking a cake

• Rotting of fruit

• Melting ice

• Filling air in a balloon

Burning of plastic is a chemical change because ________________

• no new products are formed and plastic remains as plastic only

• carbon-dioxide is released

• plastic melts

• carbon-dioxide is released and the internal structure of plastic changes