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Asked: December 20, 2023In: Class 10 Science

A student conducted an experiment to show CO2 is released during respiration. List two precautions that he/she must take for obtaining correct observations.

Rationalised syllabus CBSE Class 10 Science Sample Question Paper 2023-2024

Srushti

Asked: December 20, 2023In: Class 10 Science

Today, Riya performs two set of experiments carefully to study the length of the foam formed are as follows: Set I: Riya takes 10 ml (mililitre) of distilled water in test tube “A” and adds 5-6 drops of liquid soap in it and shakes the test tube. Set II: Riya takes 10 ml of distilled water in a test tube “A” and adds 5-6 drops of liquid soap with half spoonful of Calcium sulfate (or calcium sulphate, CaSO4) in it and shakes vigorouisly the test tube. What do you think. Write your observation and reason.

NCERT, CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Srushti

Asked: December 20, 2023In: Class 10 Science

How is ozone both beneficial and damaging? How can depletion of ozone layer be prevented?

CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Srushti

Asked: December 18, 2023In: Class 10 Science

Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter , a resistor of 4Ω in series with a combination of two resistors (8Ω each) in parallel and a voltmeter across parallel combination. Each of them dissipate maximum energy and can withstand a maximum power of 16W without melting. Find the maximum current that can flow through the three resistors.

NCERT science sample question paper CBSE class 10 with answers 2023-2024

Srushti

Asked: December 18, 2023In: Class 10 Science

Why is there a need to harness non-conventional sources of energy? Give two main reasons.

NCERT CBSE class 10 science sample question paper and answer 2023-2024 free download

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