National Science Olympiad Forum By SOF Olympiad Trainer

Pragun goel from Venkateshwar International School, Delhi

Subject :NSO Class : Class 8

Study the given flow chart.

What are P, Q and R respectively?

	P	Q	R
A	Saliva	Nutrients	Hydrochloric acid
B	Saliva	Water	Waste
C	Hydrochloric acid	Nutrients	Water
D	Bile	Water	Waste

This is easy

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Anhad A from Chrysalis, Bangalore

Subject :NSO Class : Class 7

Saurashtra, a land with history of severe water scarcity, hostile climate, and rocky land is now self sufficient in water availability due to the efforts of _____ who taught the local people the importance of rainwater harvesting.

ARajendra Singh
BShamjibhai J. Antala
CAmla Ruia
DAabid Surti

The answer is B

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Sourasis kundu from St.agnes higher secondary School, Kharagpur

Subject :NSO Class : Class 6

Ritu made some observations on the behavioural pattern of earthworm which are as follows:
(i) When earthworm was placed on the rough surface such as cardboard, it showed fast, wriggling movement.
(ii) When earthworm was placed on hand, it showed less movement.
Above observations prove that ______.
cannot understand

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asmi raut from kohana, kawasaki

Subject :NSO Class : Class 4

Sharp and pointed teeth which help to tear food are _______.

A Canines
B Molars
C Incisors
D Premolars

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Ans 1:

Akshat Singh from DPS ranchi, ranchi

Class : Class 4

Ans 2:

Shaurya Suman from don bosco academy, Patna

Class : Class 4

A. Canines

Ans 3:

VIDHI VANDANA from Bishop Westcott Girls School, Ranchi

Class : Class 5

A. CANINES

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Vedangi from Ira international School, Butibori, Nagpur

Subject :NSO Class : Class 8

Rajdhani express travels at a speed 80 km per hour. The distance between Delhi and Chennai is 2200 km. If it starts from Chennai at 3.00 p.m., what time does it reach Delhi?
i want explanation

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Aniketh Idlur from National Centre For Excellence, Bengaluru

Subject :NSO Class : Class 8

A wave travels through a medium with a speed of 340 ms^-1. If the frequency of the wave is doubled, what happens to the wave speed and wavelength?

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ALICE from Delhi Public School, UDAIPUR

Subject :NSO Class : Class 5

Taniya heated a beaker of iced water until it started boiling. She boiled it for few minutes and then left it to cool down at room temperature. She recorded the temperature of water at intervals of five minutes and used the results to draw the graph as shown in the given figure. Approximately how long did the boiling water take to cool to the room temperature?

A20 minutes
B10 minutes
C15 minutes
D30 minutes