Science

859 questions

📄 GuideActivity 2.1 Let us estimate the size of a cell, To estimate the real size of an onion peel cell. Class 9

Activity 2.1 Let us estimate the size of a cell, To estimate the real size of an onion peel cell. Cl

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Class 9 Science

📄 GuideDescribe one situation where an approximate answer is good enough. Class 9

Describe one situation where an approximate answer is good enough. Class 9Pause and Ponder (Page 6)Q

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Class 9 Science

📄 GuideThink of a prediction you or your family made recently (for example, the outcome of a cricket match). Class 9

Think of a prediction you or your family made recently (for example, the outcome of a cricket match)

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Class 9 Science

📄 GuideHow does a mask really work? Class 9

How does a mask really work? Class 9Ready to Go Beyond (Page 7)Question 1. How does a mask really wo

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Class 9 Science

📄 GuideWhy do weather forecasts sometimes go wrong? Class 9

Why do weather forecasts sometimes go wrong? Class 9Ready to Go Beyond (Page 4)Question 1. Why do we

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Class 9 Science

📄 GuideA passenger aircraft ran out of fuel midflight due to a unit mix-up. Class 9

A passenger aircraft ran out of fuel midflight due to a unit mix-up. Class 9Ready to Go Beyond (Page

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Class 9 Science

📄 GuideHow Much Rice Would Feed a Family of Four for a Month? Class 9

How Much Rice Would Feed a Family of Four for a Month? Class 9 Threads of Curiosity (Page 5)Question

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Class 9 Science

📄 GuideChecking 'viral’ claims on social media: Is eating food harmful during an eclipse? Class 9

Checking 'viral’ claims on social media: Is eating food harmful during an eclipse? Class 9Threads of

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Class 9 Science

📄 GuideWhy is the speed of light denoted by 'c'? Class 9

Why is the speed of light denoted by 'c'? Class 9Threads of Curiosity (Page 3)Question 1.Why is the

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Class 9 Science

📄 GuideSuppose you ride a bicycle from school to home. You want to model the time taken. Class 9

Suppose you ride a bicycle from school to home. You want to model the time taken. Class 9Activity -

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Class 9 Science