These TS 6th Class Science Bits with Answers 10th Lesson Changes Around Us will help students to enhance their time management skills.
TS 6th Class Science Bits 10th Lesson Changes Around Us
Question 1.
This is our common experience ( )
A) cyclones
B) hail storms
C) curdling of milk
D) earth quakes
Answer:
C) curdling of milk
Question 2.
Curd is prepared by. …… to the lukewarm milk. ( )
A) adding little curd
B) adding drops of butter milk
C) removing milk protein
D) A and B
Answer:
D) A and B
Question 3.
We notice changes in our body such as ……. ( )
A) height of body
B) length of nails
C) A and B
D) decrease in brain size
Answer:
C) A and B
Question 4.
Change in the colour of shirt may occur due to ….. ( )
A) tea drops
B) water drops
C) white petrol
D) All the above
Answer:
A) tea drops
Question 5.
The adding of little curd to the milk helps to ….. ( )
A) grow microbes
B) grow bacteria
C) grow proteins
D) grow fungi
Answer:
B) grow bacteria
Question 6.
Days and nights occur due to … of earth on its own axis. ( )
A) change
B) reaction
C) jumping
D) rotation
Answer:
D) rotation
Question 7.
Duration of a day is …………… of changes in season. ( )
A) reaction
B) an indicator
C) commander
D) follower
Answer:
B) an indicator
Question 8.
Sun light Is the mixture of ………… colours. ( )
A) 6
B) 7
C) 5
D) 8
Answer:
B) 7
Question 9.
Seasons are caused because of ( )
A) Earth’s inclination
B) Sun’s rotation
C) Moon’s rotation around the Sun
D) Moon
Answer:
A) Earth’s inclination
Question 10.
Identify the correct match
1. Iron rusting ( ) a. Temporary change
2. Melting of ice ( ) b. Man-made change
3. Milk turns into curd ( ) c. Permanent change
A) 1 – a, 2 – b, 3 – c
B) 1 – a, 2 – c, 3 – b
C) 1 – b, 2 – a, 3 – c
D) 1 – c, 2 – a, 3 – b
Answer:
A) 1 – a, 2 – b, 3 – c
Question 11.
A temporary change …………
A) Burning of candle
B) Growth of nails
C) Rusting of iron
D) Burning of coal
Answer:
A) Burning of candle
Question 12.
A change that cannot be reversed ( )
A) Cooking of food
B) Curdling of milk
C) Ripening of a mango
D) All of them
Answer:
D) All of them
Question 13.
Blowing of a balloon is a …….. change ( )
A) temporary
B) permanent
C) stable
D) unstable
Answer:
A) temporary
Question 14.
Change of season is …………. ( )
A) Temporary
B) permanent
C) continuous
D) B or C
Answer:
A) Temporary
Question 15.
Conversion of ice into water is ….. ( )
A) temporary change
B) permanent change
C) no change
D) chemical change
Answer:
A) temporary change
Question 16.
Classification of changes is based on . …….. ( )
A) chemicals
B) hard ships
C) indicators
D) substances
Answer:
C) indicators
Question 17.
Process of melting of icecream is ( )
A) Permanent change
B) Temporary change
C) Chemical change
D) None
Answer:
B) Temporary change
Question 18.
When iron rusts ( )
A) It changes colour
B) It changes physical state
C) It does not change
D) It becomes vapour
Answer:
A) It changes colour
Question 19.
Find out the man-made activity ( )
A) Sun rays
B) Changing the milk into curd
C) Moon light
D) All the above
Answer:
B) Changing the milk into curd
Question 20.
Changing milk into curd is not a ( )
A) Temporary change
B) Chemical change
C) Slow change
D) Permanent change
Answer:
D) Permanent change
Question 21.
This change takes place without any cause ( )
A) Melting of ice
B) Evaporation of water
C) Rising of sun
D) None of these
Answer:
C) Rising of sun
Question 22.
Match the following:
1. Summer ( ) a. Sun rises in south of east
2. Winter ( ) b. More water available
3. Rainy season ( ) c. Temporary change
A) 1 – a, 2 – c, 3 – b
B) 1 – c, 2 – a, 3 – b
C) 1 – b, 2 – c, 3 – a
D) 1- a, 2 – b, 3 – c
Answer:
B) 1 – c, 2 – a, 3 – b
Question 23.
Read the following:
1) Melting of ice-cream is a fast change.
2) Change in seasons is a slow change.
3) Growth in plants is a fast change.
4) Change in Atti patti is a slow change. The correct statements are…………..
A) 1 & 3
B) 1 & 4
C) 1& 2
D) 2 & 3
Answer:
B) 1 & 4
Question 24.
Milk is not turned into curd. Guess the reasons. ( )
1. Buttermilk added to hot milk
2. Buttermilk added to cold milk
3. Buttermilk added to luke warm milk
4. Buttermilk is not added to milk
A) 1,2,3
B) 1,2,4
C) 2, 3, 4
D) All of the Above
Answer:
B) 1,2,4
Question 25.
Find the odd one out regarding natural and man made change. ( )
A) Milk into curd
B) Eggs to boiled egg
C) Melting of ice-cream
D) Summer season
Answer:
A) Milk into curd
Question 26.
Read the statements
P. Growth in the plants is temporary change
Q. Melting of Ice cream is temporary change.In the above statements ( )
A) P is correct
B) Q is correct
C) P and Q are correct
D) P and Q both are wrong
Answer:
B) Q is correct
Question 27.
Summer is hot: cotton dress : Winter is cool. ( )
A) hot coffee
B) Sweden
C) cold water
D) none
Answer:
B) Sweden
Question 28.
Find the natural change among the following options. ( )
A) Seasonal changes
B) Growing plants
C) Rusting of iron
D) All the above
Answer:
D) All the above
Question 29.
One of the changes is not man made ( )
A) Furniture works
B) Seasons
C) Making dosa
D) Preparing coffee
Answer:
B) Seasons
Question 30.
To explain any change what type of questions we need to ask? ( )
A) What has changed?
B) Write the reasons for the change.
C) How do we know that it has changed?
D) All the above are relavant questions
Answer:
D) All the above are relavant questions
Question 31.
1) Flowers bloom and wither away.
2) Increase in body height.
The above mentioned changes are ……………. ( )
A) Temporary changes
B) Permanent changes
C) Man made changes
D) Transparent changes
Answer:
B) Permanent changes
Question 32.
Slight change in the direction of the sunrise is …….. ( )
A) One of the reasons for seasons
B) Only the reason for season
C) Not a reason for seasons
D) Reason influenced by man
Answer:
A) One of the reasons for seasons
Question 33.
1) Change of seasons is a natural change.
2) Changing milk into curd needs our interference ( )
A) Both 1 & 2 sentences are correct
B) 1 is true 2 sentence is false
C) Sentence 1 is false and 2 sentence is true
D) Both 1 & 2 sentences are false
Answer:
A) Both 1 & 2 sentences are correct
Question 34.
The indicators you observed while changing milk into curd ( )
A) state
B) taste
C) smell
D) all the above
Answer:
D) all the above
Question 35.
You wear these clothes in winter ( )
A) woollen
B) cotton
C) silk
D) jute
Answer:
A) woollen
Question 36.
Example of a chemical change ( )
A) Change of ice into water
B) Changes in Atti pathi
C) Explosion of fire works
D) All the above
Answer:
C) Explosion of fire works
Question 37.
What did you notice while comparing milk and curd in your class room?
A) Difference in colour between milk and curd
B) Similarity in liquid condition of milk and curd
C) Difference in size of the milk and curd
D) B or C observation
Answer:
A) Difference in colour between milk and curd
Question 38.
Some of the following show changes in the shape.
i) Changes in seasons
ii) Growth in plants
iii) Melting of candle
iv) Rice to cooked rice
v) Melting of ice-cream
A) i, ii, iii, v
B) ii, iii, iv, v
C) iii, iv, v
D) i, iv, v
Answer:
C) iii, iv, v
Question 39.
One of the following need human intervention to bring the change in it.
A) Changes in seasons
B) Rusting of iron
C) Growth in plants
D) Milk to curd
Answer:
D) Milk to curd
Question 40.
In summer we wear these clothes ( )
A) Woollen
B) Polyester
C) Nylon
D) Cotton
Answer:
D) Cotton
Question 41.
Ravi prepared an idol with mud and water. Name the change in it.
A) Permanent change
B) Temporary change
C) Natural change
D) Artificial change
Answer:
B) Temporary change
Question 42.
Find out the correct sentence ( )
A) Change of ice into water – permanent change
B) Change of rice into idly – permanent change
C) Change of vegetables into curry – temporary change
D) All are correct
Answer:
B) Change of rice into idly – permanent change
Question 43.
Day time is less during ( )
A) Winter season
B) Summer
C) Rains season
D) None
Answer:
A) Winter season
Question 44.
| Change | Indicators of change | Causes of the change |
| Change from milk to curd | The small quantity of curd added to warm milk makes certain bacteria converts milk into curd. |
What are the indicators you determine for the above activity? ( )
A) Change in state
B) Change in taste
C) Change in smell
D) Above all
Answer:
D) Above all
Question 45.
What have (instrument) you used to observe the directions of the sun rise and sun set? ( )
A) Magnetic compass
B) Bar magnets
C) Clothes
D) Sticks
Answer:
A) Magnetic compass
Question 46.
| Slow change | Fast change |
| Growth in plants Changes in seasons Drying wet clothes | Change in Atti plant Melting of ice-cream Electric bulb ON and OFF |
Find the fast change based on the above table. ( )
A) Growth in plants
B) Melting of ice-cream
C) Drying wet clothes
D) seed into
Answer:
B) Melting of ice-cream
Question 47.
| Permanent Change | Temporary Change |
| Rusting of iron Curdling of milk Cutting tree into pieces | Melting candle wax Water into ice Electric bulb ON and OFF |
What are the temporary changes? ( )
A) Rusting of iron
B) Water into ice
C) Cutting tree into pieces
D) Curdling of milk
Answer:
B) Water into ice
Question 48.
| Natural change | Man made change |
| Decomposing dry leaves in the soil | Flowers are tied as garland |
| Growth in plants | Concrete formation |
| Water vapourisation from sea | Raw vegetables into curry |
What are natural changes? ( )
A) Leaves decompose in the soil
B) Making concrete
C) Curry formation
D) Electric bulb ON and OFF
Answer:
A) Leaves decompose in the soil
Question 49.
| Change | Indicators change | Causes of the change |
| Changes in seasons | Change in dress we wear, coldness or hotness of air, food/ drinks we take, usage of water, fruits and flowers available duration of a day | The change in the direction of sunrise |
What are the indicators that influence changes in the seasons? ( )
A) Cold or hot
B) Usage of water and fruits
C) Flowering in the plants
D) Above all
Answer:
D) Above all
Question 50.
| Egg to boiled egg | Man made change |
| Electric bulbs ON and OFF | Man made change |
| Changes in Atti patti | ? |
What will be the answer in the place ‘?’ mark? ( )
A) Natural change
B) Artificial change
C) Natural or artificial change
D) Both natural and artificial changes
Answer:
A) Natural change
Question 51.
| Growth in plants | Permanent change |
| Rusting of iron | ‘?’ |
| Change in season | Temporary change |
What do we see in the iron?
A) Man made change
B) Natural change
C) Permanent change
D) B and C
Answer:
D) B and C
Question 52.
Read the following :
| 1. Rice to cooked rice | Slow change |
| 2. Growth in plants | Slow change |
| 3. Raw vegetables into cooked curry | ? |
What is the nature of change in 3rd one? ( )
A) Slow change
B) Fast change
C) Slow did Fast change
D) Slow or Fast change
Answer:
A) Slow change
Question 53.
The picture shows which season?
A) Summer
B) Rainy
C) Winter
D) All the seasons
Answer:
A) Summer
Question 54.
Which season is conveyed through the given picture? ( )
A) Summer
B) Winter
C) Rainy
D) All the seasons
Answer:
B) Winter
Question 55.
Human intervention doesn’t bring change in one of the following.
A) Milk to curd
B) Egg to boiled egg ( )
C) Flowering in plant
D) Lighting candle
Answer:
C) Flowering in plant