Physical and Chemical changes

Identify the change shown in the picture.

• Irreversible physical change

• Irreversible chemical change

• reversible physical change

• reversible chemical change

Which of the following is a example of physical change ?

• burning of wood

• photosynthesis

• melting of ice-cream

• ripening of fruit

What does the picture represent ?

• physical change

• chemical change

Observe the picture and choose the correct option.

• Irreversible physical change

• Reversible physical change

Choose the picture that shows chemical change.

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

• True

• False

A chemical change may involve

• Evolution of gas

• Change in temperature

• Change in colour

• All of the above

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

• True

• False

Wood that is burning in a brush pile has heat, and produces ashes.

• Physical

• Chemical

Is milk going sour a physical or chemical change?

• Physical

• Chemical