Physical and Chemical changes

Front

Identify the change shown in the picture.

Back

Irreversible chemical change

Front

Example of physical change:

• burning of wood
• photosynthesis
• melting of ice-cream
• ripening of fruit

Back

melting of ice-cream

Front

What does the picture represent?

Back

chemical change

Front

Observe the picture and determine the type of physical change:

Irreversible physical change

,

Reversible physical change

Back

Irreversible physical change

Front

Choose the picture that shows chemical change.

Back

Front

Which one is not the characteristic of a physical change? Options: They are changes in the physical properties of substance, Rearrangement of molecules take place, No new substances are formed.

Back

They are often irreversible

Front

Haber's process is an example of _____________

Back

Reversible chemical change

Front

In physical change, the substance formed has different properties than the original substance.

Back

False

Front

A chemical change may involve:
- Evolution of gas
- Change in temperature
- Change in colour
- All of the above

Back

All of the above

Front

When a candle burns, both physical and chemical changes occur.

Back

True