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Changes Around Us

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Changes Around Us- 6th Std Science Term - I

Congratulations - you have completed Changes Around Us- 6th Std Science Term - I. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Question 1
Release of the compressed spring is_____
A
an irreversible change
B
a reversible change
C
a non-periodic change
D
an undesirable change
Question 2
Spoilage of food is______
A
a reversible change
B
a fast change
C
an undesirable change
D
a periodic change
Question 3
Dissolution of washing soda in water is______
A
an exothermic change
B
an irreversible change
C
an undesirable change
D
an endothermic change
Question 4
Which of the following changes is non-periodic?
A
heartbeat
B
earthwuake
C
occurance of day and night
D
oscillation of pendulum
Question 5
Who was the first Indian woman travelled to the space?
A
Marie Curie
B
Indira Nooyee
C
Kalpana Chawla
D
Saira
Question 6
Which of the following statement is correct?
A
Our body loses weight in space
B
Ourbody gains weight in space
C
Our eye sight becomes dull
D
All are correct
Question 7
The time taken for a tree to turn into coal under the earth is______.
A
34 years
B
3400 years
C
34000 years
D
30 crore years
Question 8
Which of  the following is a slow change?
A
Burning of paper
B
Brusting of crackers
C
Rusting of iron
D
Glowing of electric bulb
Question 9
Which of the following is a fast change?
A
Growth of a child
B
Brustin of crackers
C
Germination of seed
D
Curdling of milk
Question 10
Which of the following is a reversible change?
A
Batter into idly
B
Green vegetables into cooked food
C
Making of ornaments from gold
D
Curdling of milk
Question 11
Which of the following is an irreversible change?
A
Evaporation of water
B
Melting of ice
C
Making ornaments from silver
D
Ripening of fruits
Question 12
Which of the following is a desirable change?
A
Earthwuake
B
Accident
C
Blooming of volcano
D
Landslide
Question 13
Which of the following is a periodical change?
A
Heart beat
B
Earthquake
C
Eruption of volcano
D
Landslide
Question 14
Which of the following is a non-periodical change?
A
Oscillation of pendulum
B
Phases of moon
C
Occurrence of day and night
D
Earthquake
Question 15
The reactions in which heat is liberated are called ____ reactions.
A
Endothermic
B
Exothermic
C
Adiabatic
D
Isothermic
Question 16
The reactions in which heat is absorbed are called ____ reactions.
A
Endothermic
B
Exothermic
C
Adiabatic
D
Isothermic
Question 17
In some changes, the substance can be brought back to its original state. Such changes are called _____ changes.
A
Periodic
B
Non-periodic
C
Undesirable
D
Reversible
Question 18
Changes that are useful are called ____changes.
A
Periodic
B
Desirable
C
Undesirable
D
Irreversible
Question 19
Dissolution of glucose in water is an example of_______ reaction
A
Adiabatic
B
Isothermal
C
Edothermic
D
Exothermic
Question 20
When Ammonium chloride is dissolved in water _____ is absorbed.
A
Mass
B
Heat
C
Time
D
Salt
Question 21
Dissolution of quick lime in water is an example of _______  reaction.
A
Exothermic
B
Endothermic
C
Isochronous
D
Isobaric
Question 22
Dissolution of detergent powder in water is an example of _____ reaction.
A
Exothermic
B
Endothermic
C
Isochronous
D
Isobaric
Question 23
Curdling of milk is an ______ change.
A
periodic
B
irreversible
C
reversible
D
non-periodic
Question 24
Ripening of fruit is ______ change.
A
desirable irreversible
B
irreversible
C
reversible
D
non-periodic
Question 25
Burning of paper is a________ change.
A
fast
B
slow
C
absorbed
D
none
Question 26
Kalpana Chawla was the _______ who travelled to the space.
A
first Indian woman
B
Second American woman
Question 27
She went round the world within _____
A
13 Hours
B
2 Days
C
one and half hours
Question 28
Useful changes are called ______
A
Undesirable changes
B
desirable changes
Question 29
Velco was invented in the year _____
A
1948
B
1943
C
1947
D
1949
Question 30
Velco is widely used in _______
A
foot wear
B
Hand Wear
Question 31
Dissolution of glucose is an ______
A
Exothermic
B
endothermic
Question 32
Trees which are buried under the earth are turned into _____
A
coal
B
Petrolium
C
Gold
Question 33
Release of compressed spring is _______
A
reversible
B
Irreversible
Question 34
Match the following
  1. Burning of paper    a. Desirable change
  2. Rusting of iron        b. Reversible change
  3. Melting of ice          c. Slow change
  4. Ripening of fruits    d. fast change
A
1 3 4 2
B
4 3 2 1
C
2 3 4 1
D
3 2 4 1
Question 35
Match the following
  1. Melting of Gold    a. Reversible change
  2. Melting of Tar      b. Irreversible change
  3. The batter from Idly or dosa          c. Undesirable change
  4. Eruption of volcano                    d. Reversible change
A
1 3 4 2
B
4 3 2 1
C
2 3 4 1
D
3 2 4 1
Question 36
Match the following
  1. Earth quake a. Endothermic changes
  2. Weather b. Non-periodic changes
  3. Buring of match stick c. Periodic changes
  4. Dissolution of glucose d. Exothermic changes
A
1 3 4 2
B
4 3 2 1
C
2 3 4 1
D
4 1 2 3
Question 37
Match the following
  1. Full moon and New moon    a. Exothermic changes
  2. Weather                                   b. Endothermic changes
  3. Buring of match stick           c. Periodic changes
  4. Dissolution of glucose             d. Periodic changes
A
2 3 4 1
B
3 4 1 2
C
1 3 4 2
D
4 1 2 3
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There are 37 questions to complete.

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