Tommowrow I have chemistry test and this worksheet must study but I don't know any answer pleeeeease help me !!!!!!!!
FAST!!!!!!!
Activity 1
A table related to the states of matter is given below. Complete it suitably.
solid b………………
gas a)…………………..
water c)……………………..
Activity 2
Give reason for the following:
a) Steam causes more severe burns than boiling water.
b) It is easy to prepare food in pressure cookers.
c) Wet clothes get dry at room temperature. d) Water droplets get spherical shape.
e) Closed glass bottles filled with water should not be kept in freezer.
f) Soap helps in removing dirt from clothes.
Answer:
Activity 3
Find and write which of the following is not the property of water.
a) High heat capacity
b) On freezing, volume decreases.
c) The surface acts like a layer.
Answer:
Activity 4
Water can exhibit the colour of substance added to it. Write a situation in which this feature of water can be utilized.
Answer:
Activity 5
Plan an experiment to prove that water can be formed by reacting between oxygen and hydrogen.
Answer:
Activity 6
The hardness of water is due to the presence of dissolved salts. Pick out the salts from the box that causes the hardness of water.
Sodium chloride, calcium carbonate, Magnesium sulphate Calcium chloride, Calcium bicarbonate, Magnesium carbonate,
Answer:
Activity 7
Water pollution is a serious issue we face today.
a) Write any two situations in which water in your locality gets polluted?
b) Suggest two methods to prevent water pollution.
Answer :
Answers
Answer:
Tommowrow I have chemistry test and this worksheet must study but I don't know any answer pleeeeease help me !!!!!!!!
FAST!!!!!!!
Activity 1
A table related to the states of matter is given below. Complete it suitably.
solid b………………
gas a)…………………..
water c)……………………..
Activity 2
Give reason for the following:
a) Steam causes more severe burns than boiling water.
b) It is easy to prepare food in pressure cookers.
c) Wet clothes get dry at room temperature. d) Water droplets get spherical shape.
e) Closed glass bottles filled with water should not be kept in freezer.
f) Soap helps in removing dirt from clothes.
Answer:
Activity 3
Find and write which of the following is not the property of water.
a) High heat capacity
b) On freezing, volume decreases.
c) The surface acts like a layer.
Answer:
Activity 4
Water can exhibit the colour of substance added to it. Write a situation in which this feature of water can be utilized.
Answer:
Activity 5
Plan an experiment to prove that water can be formed by reacting between oxygen and hydrogen.
Answer:
Activity 6
The hardness of water is due to the presence of dissolved salts. Pick out the salts from the box that causes the hardness of water.
Sodium chloride, calcium carbonate, Magnesium sulphate Calcium chloride, Calcium bicarbonate, Magnesium carbonate,
Answer:
Activity 7
Water pollution is a serious issue we face today.
a) Write any two situations in which water in your locality gets polluted?
b) Suggest two methods to prevent water pollution.
Answer :