Worksheetschanges around us
Total questions: 12
Worksheet time: 7mins
what type of change is the
"rusting of iron"
physical , reversible
chemical , irreversible
physical , irreversible
chemical , reversible
physical changes are _____________
always reversible
always irriversible
sometimes irreversible but most of the time , reversible
some times reversible but most of the time , irreversible
is growth of weeds an desirable change?
Yes
No
maybe
none of the above.
the change that occors at regular intervals of times are called (a) changes
Change of milk to curd
physical
chemical
reversible
irreversible
common mistake growth of weeds are undesirable , because "weeds" mean useless and even harmful plants for vegetation.
OK.
WHY?
________________ is an example of desirable change .
rusting of iron
breaking of glass
drying of cloths
tearing of paper
growth of plants is ________ change
fast , desirable
slow , undesirable
fast , undesirable
slow , desirable
melting of wax is a (a) and a physical change
Changing of seasons is a
periodic
irreversible
reversible
none of the above.
rusting of iron is a desirable change
true
false
heart beat is a periodic change
true
false
