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Aaryahi Kawle from Chatrabhuj Narsee School, Mumbai
Subject :NSO    Class : Class 7

Three test tubes are set up as shown. The indicator used here changes from red to yellow when exposed to increased levels of carbon dioxide. At the start of the experiment, the indicator in each test tube was red.


What will be the colour of the indicator in each test tube after two hours?

a b c
A Yellow Yellow Red
B Red Yellow Red
C Yellow Red Red
D Yellow Yellow Yellow


Please explain how the test tube with insects will turn yellow.

Ans 1:

JAYANT TATIPAMULA from Ganges valley school, hyd
Class : Class 7
Hello. And Bye.

Ans 2:

Ayushi Agrawal from Bal Bharati Public School Pitampura, New Delhi
Class : Class 9
hello everyone thanks for approve

Ans 3:

Anantha Narayanan M S from NPS Goaplapuram Chennai, Chennai
Class : Class 9
Ciao a tutti vengo dall'italia

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K.B.SUHAS from CHINMAYA VIDYALAYA, Chennai
Subject :NSO    Class : Class 2

Ans 1:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 4
HI, If you unscramble SECIIUDOL it gives DELICIOUS. Thanks, Anamkhan

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RISHI DARDA from WOODRIDGE HIGH, AURANGABAD
Subject :NSO    Class : Class 6

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mihir from Nirma Vidyavihar, Ahmedabad
Subject :NSO    Class : Class 2

Ans 1:

K.B.SUHAS from CHINMAYA VIDYALAYA, Chennai
Class : Class 2
bear is a plant eater and animal eater,,bear eats fish and instects

Ans 2:

S.R.POORNA from Padma Seshadri Bala Bhavan Senior Secondary School, Chennai
Class : Class 2
D

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Ambit Biswas from Oriental Public School, Kalyani, Kalyani
Subject :NSO    Class : Class 4

Ans 1:

sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Class : Class 5
ans:none of these 365 days 6 hours

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Arnav Gulati from The Heritage School, Gurgaon
Subject :NSO    Class : Class 6

Ans 1:

Anurag Peddi from Niraj International School, Hyderabad
Class : Class 9
It is D, oscillatory and circular.

Ans 2:

legendary ninja from DPS gurgaon, gurgaon
Class : Class 6
i think it should be rotational motion ,but among these options ,i think it will be d

Ans 3:

Saurabh the cool from Global Indian international school, Singapore
Class : Class 6

Ans 4:

Naveen Kumar Singh from AIR FORCE SCHOOL, TEZPUR
Class : Class 6
OSCILLATORY

Ans 5:

Ishani from FPS, Bangalore
Class : Class 6
the answer is circular and oscillatory

Ans 6:

Keshav Gupta from Prarambhika, Patna
Class : Class 6
Rectilinear

Ans 7:

vishnu from Bodhi, Trivandrum
Class : Class 6
Should be d

Ans 8:

Animesh Jain from DPS, Bengaluru
Class : Class 7
answer should be D. Both Circulatory and Oscillatory.

Ans 9:

Aritra Porey from DPS Bangalore North, Bengaluru
Class : Class 7
Shouldn't the answer be D - Circular and oscillatory

Ans 10:

Keshav Gupta from Prarambhika, Patna
Class : Class 6
Rectilinear

Ans 11:

RIYA GUPTA from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 6
Option'D'.

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AKSHITA DIXIT from R K SARDA VIDYA MANDIR, RAIPUR
Subject :NSO    Class : Class 6

Ans 1:

Neil Pathak from hiranandani foundation school, Mumbai
Class : Class 4
Its d

Ans 2:

Irresh Vijay from NPSI Singapore, Singapore
Class : Class 6
Ans is D

Ans 3:

Anmol kathar from deogiri global academy, aurangabad
Class : Class 7
the answer is wrong

Ans 4:

Naveen Kumar Singh from AIR FORCE SCHOOL, TEZPUR
Class : Class 6
A IS WRONG

Ans 5:

Saurabh the cool from Global Indian international school, Singapore
Class : Class 6
the answer is d

Ans 6:

Saurabh the cool from Global Indian international school, Singapore
Class : Class 6

Ans 7:

Saurabh the cool from Global Indian international school, Singapore
Class : Class 6
ha

Ans 8:

Shreyan from San, Pune
Class : Class 6

Ans 9:

Anmol kathar from deogiri global academy, aurangabad
Class : Class 7

Ans 10:

Sharmi Chowdhury from G.D Birla Centre For Education , Kolkata
Class : Class 7
I guess it should have been A.

Ans 11:

Count Dracula from Hotel Transylvania, Transylvania
Class : Class 7
It should be (D).

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Anushka Avinash Rayshirodkar from St.Francis Xavier school Ajgaon., Arawali Dewoolwadi Near Vetoba Mandir
Subject :NSO    Class : Class 6

Ans 1:

Keshav Gupta from Prarambhika, Patna
Class : Class 6
R

Ans 2:

Vishwas Shende from orchid the international school, thane
Class : Class 6
glass is an insulator and the part P is made of glass due to this Q , R, S are the wrong answer

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dhruv from Sri Aurobindo Memorial School, Bengaluru
Subject :NSO    Class : Class 8

Ans 1:

ketaki kul from sanskriti school, Pune
Class : Class 10
Mycobacterium tuberculosis is the causative organism of tuberculosis

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RUDRA.JIN   DAL from DPS noida, Noida
Subject :NSO    Class : Class 3

Ans 1:

Shreyas Ubaley from M G M Senior Secondary school Sec-6, Bhilai(C.G)
Class : Class 3
B

Ans 2:

RUDRA.JIN   DAL from DPS noida, Noida
Class : Class 3

Ans 3:

Ajantha GS from SDM CBSE English Medium School, Dharwad
Class : Class 5
b

Ans 4:

Soham from Golden Earth Global School, Sangrur, Sangrur
Class : Class 3
B

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