WorksheetsGRADE-2 ASSESSMENT-3 MATERIALS CHANGE (21.01.21)
Total questions: 20
Worksheet time: 16mins
When a material can change back to its original form we say it is (a) . (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?
(a)
Burning a piece of paper.
Is it Reversible or Irreversible ?
(a)
Candle is a solid. If we heat it, it will melt and turn into liquid. This is a (a) change. (irreversible , reversible)
Water changes to ice cubes by (a) . (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)
(a)
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
What material solidifies when cooled or placed inside the refrigerator? ( Chocolate, Nail, Plastic)
(a)
Material that easily solidifies when cooled.
chocolate
butter
water
all of the above
Is fried egg reversible or irreversible?
Reversible
Irreversible
What is this picture all about? (Melting, Heating)
(a)
Choose all that show IRREVERSIBLE change.
Type True or false.
The three states of matter are solid liquid and gas.
(a)
(a) take the shape of the container. (Solids, Liquids, Gas)
______ is important for us to breathe.
Carbon-di- oxide
Oxygen
Helium
Name the gas filled in chips to keep them fresh. ( Helium, Nitrogen,Oxygen)
(a)
Tick the gases.
