Science

859 questions

Which type of motion is more common in daily life-uniform or nonuniform? Provide three examples Class 7

Which type of motion is more common in daily life-uniform or nonuniform? Provide three examples Clas

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Class 7 Science

A car covers 60 km in the first hour, 70 km in the second hour, and 50 km in the third hour. Is the motion uniform? Class 7

A car covers 60 km in the first hour, 70 km in the second hour, and 50 km in the third hour. Is the

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Class 7 Science

Data for an object covering distances in different intervals of time are given in the following table. Class 7

Data for an object covering distances in different intervals of time are given in the following tabl

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Class 7 Science

Distinguish between uniform and non-uniform motion using the example of a car moving on a straight Class 7

Distinguish between uniform and non-uniform motion using the example of a car moving on a straight C

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Class 7 Science

The fastest galloping horse can reach the speed of approximately 18 m/s. How does this compare to the speed Class 7

The fastest galloping horse can reach the speed of approximately 18 m/s. How does this compare to th

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Class 7 Science

A train travels 180 km in 3 h. Find its speed in km/h Class 7

A train travels 180 km in 3 h. Find its speed in km/h. Class 7A train travels 180 km in 3 h. Find it

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Class 7 Science

A train travels at a speed of 25 m/s and covers a distance of 360 km. How much time does it take? Class 7

A train travels at a speed of 25 m/s and covers a distance of 360 km. How much time does it take? Cl

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Class 7 Science

A runner completes 400 metres in 50 seconds. Another runner completes the same distance in 45 seconds. Class 7

A runner completes 400 metres in 50 seconds. Another runner completes the same distance in 45 second

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Class 7 Science

Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h. Class 7

Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h. Cla

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Class 7 Science

Activity 8.4 Let us calculate (Page 114) Table 8.2 Finding the speed of trains Class 7

Activity 8.4 Let us calculate (Page 114) Table 8.2 Finding the speed of trains Class 7Activity 8.4 L

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Class 7 Science

Activity 8.3 Let us identify (Page 112) Look at the wall clock shown in Fig. 8.9 carefully Class 7

Activity 8.3 Let us identify (Page 112) Class 7Activity 8.3 Let us identify (Page 112) Class 7Questi

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Class 7 Science

How was time measured when there were no clocks and watches Class 7

How was time measured when there were no clocks and watches? Class 7How was time measured when there

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Class 7 Science

The water cycle helps in the redistribution and replenishment of water on the Earth. Justify the statement. Class 7

The water cycle helps in the redistribution and replenishment of water on the Earth. Justify the sta

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Class 7 Science

Explain how water seeps through the surface of the Earth and gets stored as groundwater. Class 7

Explain how water seeps through the surface of the Earth and gets stored as groundwater. Class 7Expl

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Class 7 Science

Explain how large water bodies prevent extreme temperature in areas around them. Class 7

Explain how large water bodies prevent extreme temperature in areas around them. Class 7 Explain how

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Class 7 Science

Why are hollow bricks used to construct the outer walls of houses in hot regions? Class 7

Why are hollow bricks used to construct the outer walls of houses in hot regions? Class 7 Why are ho

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Class 7 Science

Two test tubes with water are heated by a candle flame as shown in Fig. 7.16. Which thermometers (Fig. 7.16a or Fig. 7.16b) Class 7

Two test tubes with water are heated by a candle flame as shown in Fig. 7.16. Which thermometers (Fi

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Class 7 Science

A burning incense stick is fixed, pointing downwards. In which direction would the smoke from the incense stick move? Class 7

A burning incense stick is fixed, pointing downwards. In which direction would the smoke Class 7A bu

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Class 7 Science

Some ice cubes placed in a dish melt into water after sometime. Where do the ice cubes get heat for this transformation? Class 7

Some ice cubes placed in a dish melt into water after sometime. Where do the ice cubes get heat for

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Class 7 Science

State with reason(s) whether the following statements are True [T] or False [F] Heat transfer takes place in solids Class 7

State with reason(s) whether the following statements are True [T] or False [F]. Heat transfer takes

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Class 7 Science

A shopkeeper serves you cold lassi in a tumbler. By chance, the tumbler had a small leak. Class 7

A shopkeeper serves you cold lassi in a tumbler. By chance, the tumbler had a small leak. Class 7A s

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Class 7 Science

Let Us Enhance Our Learning (Pages 102-104) Choose the correct option in each case

Let Us Enhance Our Learning (Pages 102-104) Choose the correct option in each case Class 7Let Us Enh

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Class 7 Science

How does water seep through the surface of the Earth Class 7

How does water seep through the surface of the Earth? Class 7How does water seep through the surface

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Class 7 Science

I wonder how heat from the fire reaches us? Class 7

I wonder how heat from the fire reaches us? Class 7I wonder how heat from the fire reaches us? Class

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Class 7 Science

Why is the smoke going up. How does heat transfer take place in liquids? Class 7

Why is the smoke going up. How does heat transfer take place in liquids? Class 7Question 1.Why is th

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Class 7 Science

How does heat get transferred in these materials Class 7

How does heat get transferred in these materials Class 7Question 1.How does heat get transferred in

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Class 7 Science

During adolescence the boys and girls undergo certain physical changes, a few of which are given below Class 7

During adolescence, the boys and girls undergo certain physical changes, a few of which are given be

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Class 7 Science

Mary and Manoj were classmates and good friends. On turning 11 Mary developed a little bulge on the front of her neck Class 7

Mary and Manoj were classmates and good friends. On turning 11, Mary developed a little bulge on the

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Class 7 Science

While using a toilet, Mohini noticed that used sanitary pads were scattered near the bin. She got upset and shared Class 7

While using a toilet, Mohini noticed that used sanitary pads were scattered near the bin. She got up

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Class 7 Science

During a discussion in the class, some of the students raised the following points. What questions would you ask Class 7

During a discussion in the class, some of the students raised the following points. What questions w

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Class 7 Science

Shalu told her friend, "Adolescence brings only physical changes, like growing taller or developing body hair. Class 7

Shalu told her friend, "Adolescence brings only physical changes, like growing taller or developing

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Class 7 Science

Unscramble the underlined word in the following sentences The discharge of blood in adolescent girls which generally Class 7

Unscramble the underlined word in the following sentences The discharge of blood in adolescent girls

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Class 7 Science

Which of the following food groups would be a better option for adolescents and why? Class 7

Which of the following food groups would be a better option for adolescents and why? Class 7Which of

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Class 7 Science

Ramesh, an 11-year-old boy, developed a few pimples on his face. His mother told him that this is because of ongoing Class 7

Ramesh, an 11-year-old boy, developed a few pimples on his face. His mother told him that this is be

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Class 7 Science

Activity 6.4 Let us spread awareness Table 6.4 Do's and Don'ts to be followed on social media Class 7

Activity 6.4 Let us spread awareness Class 7Activity 6.4 Let us spread awareness Class 7Table 6.4 Do

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Class 7 Science

Activity 6.3 Let us list Table 6.3 Food sources, nutrients present in them, and functions of these nutrients Class 7

Activity 6.3 Let us list Class 7Activity 6.3 Let us list (Page 79) Class 7AnswerTable 6.3 Food sourc

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Class 7 Science

Activity 6.2 Let us list Table 6.2 Emotional changes, their probable effects on behaviour, and ways Class 7

Activity 6.2 Let us list Class 7Activity 6.2 Let us list (Page 78) Class 7Table 6.2 Emotional change

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Class 7 Science

Activity 6.1 Let US discuss Table 6.1 Most common changes during growing up Class 7

Activity 6.1 Let us discuss Class 7Activity 6.1 Let us discuss (Pages 74-75) Class 7Table 6.1 Most c

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Class 7 Science

Chameleons Changing Colour Class 7

Chameleons Changing Colour Class 7Chameleons Changing Colour? Class 7Answer:Chameleons can change th

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Class 7 Science

What do you observe after an hour ? Class 7

What do you observe after an hour ? Class 7What do you observe after an hour ? Class 7Answer:The bal

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Class 7 Science

Kitchen Activities Reversible and Irreversible Changes Class 7

Kitchen Activities: Reversible and Irreversible Changes Class 7Kitchen Activities: Reversible and Ir

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Class 7 Science

Reducing Landslides and Rock Erosion Class 7

Reducing Landslides and Rock Erosion Class 7Reducing Landslides and Rock Erosion Class 7Answer:Expla

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Class 7 Science

Invisible Ink with Lemon Juice Can the changes be reversed? Class 7

Invisible Ink with Lemon Juice Can the changes be reversed? Class 7Invisible Ink with Lemon Juice: C

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Class 7 Science

The experiments shown in Fig. 5.11a, b, c, and d were performed. Find out in which case(s) did lime water Class 7

The experiments shown in Fig. 5.11a, b, c, and d were performed. Find out in which case(s) did lime

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Class 7 Science

Some changes are given here. Write physical changes in the area marked 'A' and chemical changes in the area marked 'B' Class 7

Some changes are given here. Write physical changes in the area marked 'A' and chemical changes in t

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Class 7 Science

Read the following story titled Eco-friendly Prithvi and tick the most appropriate option(s) given in the brackets Class 7

Read the following story titled 'Eco-friendly Prithvi', and tick the most appropriate option(s) give

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Class 7 Science

Natural factors such as wind rain etc. help in the formation of soil from rocks. Is this change physical Class 7

Natural factors, such as wind, rain, etc., help in the formation of soil from rocks. Class 7Natural

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Class 7 Science

Is curdling of milk a physical or chemical change? Justify your statement. Class 7

Is curdling of milk a physical or chemical change? Justify your statement. Class 7Is curdling of mil

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Class 7 Science

Are the changes of water to ice and water to steam, physical or chemical? Explain. Class 7

Are the changes of water to ice and water to steam, physical or chemical? Explain. Class 7Are the ch

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Class 7 Science

State whether the following statements are True or False Melting of wax is necessary for burning a candle

State whether the following statements are True or False Melting of wax is necessary for burning a c

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Class 7 Science