changes around us

Pick change that can be reversed from the following

• Cutting of treee

• Melting of ghee

• burning of candle

• blooming of flower

Which of the following cannot be reversed

• Hardening of cement

• Freezing of ice cream

• Opening of door

• Melting of chocolate

An iron is heated. Which of the following statement about is incorrect

• The ring expand

• The ring almost comes to the same size on cooling

• The change in this case is reversed

• The ring change its shape and the change cannot be reversed

While lighting the candle, paheli observed the following changes.

• Wax was melting

• Candle was burning

• Size of candle was reducing

• Melted wax was getting modified

Some example for irreversible changes

When you break a glass of water can it change back by its own shape

• False

• True

example of reversible changes is tearing of paper

• True

• False

Boiling egg is an irreversible changes

• True

• False

Is vapourisation an reversible changes

• True

• False

Is condensation irreversible changes

• True

• False