GRADE-2 ASSESSMENT-3 MATERIALS CHANGE (21.01.21)

When a material can change back to its original form we say it is ___________. (reversible, irreversible)

When a material cannot change back to its original form we say it is________.

• Irreversible

• Reversible

• Temporary

If we melt metal, ice cream and chocolate .Which would melt faster?

Burning a piece of paper.

Is it Reversible or Irreversible ?

Candle is a solid. If we heat it, it will melt and turn into liquid. This is a ___________ change. (irreversible , reversible)

Water changes to ice cubes by________. (melting, freezing)

The cheese in the pizza changed because of the action of _____.

• Cooling

• Freezing

• Heating

What kind of mixture is cereal and milk?

• Solid and liquid

• Liquid and liquid

• Solid and solid

• Liquid and gas

Which material can easily melt under the sun? ( Ice , clay, egg)

When you put butter in a frying pan and turned on the gas stove. What will happen to the butter?

• remain solid

• becomes liquid

• becomes gas

• none of the above