Nichrome wire is commonly used in electrical heating devices because it Class 8
Nichrome wire is commonly used in electrical heating devices because it Class 8Nichrome wire is comm
An electric current flows through a nichrome wire for a short time. Class 8
An electric current flows through a nichrome wire for a short time. Class 8An electric current flows
Keep the curiosity alive (Pages 58-61) Fill in the blanks: Class 8
An electromagnet, using a single cell, attracts more iron paper clips than the same electromagnet wi
What is inside the cells and batteries that produces electricity? Class 8
What is inside the cells and batteries that produces electricity? Class 8What is inside the cells an
While doing the activity for electromagnet, did you also notice that the wire ends got warm? Class 8
While doing the activity for electromagnet, did you also notice that the wire ends got warm? Class 8
Are electromagnets also used in real life, for lifting objects? Class 8
Are electromagnets also used in real life, for lifting objects? Class 8Are electromagnets also used
Activity 4.3 Let us experiment (Page 50) Does electromagnet also have two poles like a bar magnet? Class 8
Activity 4.3 Let us experiment (Page 50) Class 8Does electromagnet also have two poles like a bar ma
Can we use electric current to make a magnet? Class 8
Can we use electric current to make a magnet? Class 8Can we use electric current to make a magnet? C
How do we know if a cell or a battery is dead? Can all cells and batteries be recharged? Class 8
How do we know if a cell or a battery is dead? Can all cells and batteries be recharged? Class 8How
We can generate heat by burning fossil fuels and wood; but how is heat generated in various electrical appliances? Class 8
We can generate heat by burning fossil fuels and wood; but how is heat generated in various electric
Is it possible to make temporary magnets? How can these be made? Class 8
Is it possible to make temporary magnets? How can these be made? Class 8Is it possible to make tempo
If we don't have an electric lamp while making an electric circuit with an electric cell is there any other Class 8
If we don't have an electric lamp while making an electric circuit with an electric cell is there an
If you are given an opportunity to create a health card, what all would you like to include in it. Class 8
If you are given an opportunity to create a health card, what all would you like to include in it. C
When our body encounters a pathogen for the first time, the immune response is generally Class 8
When our body encounters a pathogen for the first time, the immune response is generally Class 8When
Which disease(s) among the following may spread if drinking water gets contaminated by the excreta Class 8
Which disease(s) among the following may spread if drinking water gets contaminated by the excreta C
It is recommended that we should not take an antibiotic for a viral infection like a cold, a cough, or flu. Class 8
It is recommended that we should not take an antibiotic for a viral infection like a cold, a cough,
Imagine you are in charge of a school health campaign. What key messages would you use to reduce Class 8
Imagine you are in charge of a school health campaign. What key messages would you use to reduce Cla
The following table contains information about the number of dengue cases reported in a hospital Class 8
The following table contains information about the number of dengue cases reported in a hospital Cla
Saniya claims to her friend Vinita that Antibiotics can cure any infection, so we don't need Class 8
Saniya claims to her friend Vinita that Antibiotics can cure any infection, so we don't need Class 8
Your uncle has started smoking just to fit in with his friends, even though it is well known Class 8
Your uncle has started smoking just to fit in with his friends, even though it is well known Class 8
Your family is planning to travel to another city where malaria is prevalent. Class 8
Your family is planning to travel to another city where malaria is prevalent. Class 8Your family is
There is a flu outbreak in your school. Several classmates are absent, while some are still coming Class 8
There is a flu outbreak in your school. Several classmates are absent, while some are still coming C
Diseases can be broadly grouped into communicable and non-communicable diseases. Class 8
Diseases can be broadly grouped into communicable and non-communicable diseases. Class 8Diseases can
Group the diseases shown (see textbook) in the images as communicable or non-communicable. Class 8
Group the diseases shown (see textbook) in the images as communicable Class 8Group the diseases show
Activity 3.7 Let us infer (Page 41) How do you think the antibiotic resistance has been developed Class 8
Activity 3.7 Let us infer (Page 41) Class 8How do you think the antibiotic resistance has been devel
Some people get sick more frequently than others, although living in a similar environment. Do you know why? Class 8
Some people get sick more frequently than others, although living in a similar environment. Do you k
Find out about such community campaigns held in your location. Share in your class and discuss with your Class 8
Find out about such community campaigns held in your location. Share in your class and discuss with
Activity 3.6 Let us read (Page 37) What do you infer from this case study? Class 8
Activity 3.6 Let us read (Page 37) What do you infer from this case study? Class 8What do you infer
Are diseases always caused by infections? Class 8
Are diseases always caused by infections? Class 8Are diseases always caused by infections? Class 8An
Activity 3.2 How can we stay healthy? (Page 30) What we should do and what should Class 8
Activity 3.2 How can we stay healthy? (Page 30) What we should do and what should Class 8What we sho
How did his habits and surroundings affect his well-being? Class 8
How did his habits and surroundings affect his well-being? Class 8How did his habits and surrounding
Activity 3.1 Let us read (Page 29) What was the cause of the boy's health problems? Class 8
Activity 3.1 Let us read (Page 29) What was the cause of the boy's health problems? Class 8What was
Is being healthy just about not having diseases? Class 8
Is being healthy just about not having diseases? Class 8Is being healthy just about not having disea
What do the news clippings on the notice board tell you about people's health in our country? Class 8
What do the news clippings on the notice board tell you about people's health in our country? Class
Why do some groups of people get affected more than others during disease outbreaks? Class 8
Why do some groups of people get affected more than others during disease outbreaks? Class 8Why do s
How do emotions like stress or worry affect us and make us sick? Class 8
How do emotions like stress or worry affect us and make us sick? Class 8How do emotions like stress
Could climate change lead to new types of diseases? Class 8
Could climate change lead to new types of diseases? Class 8Could climate change lead to new types of
We rarely see cases of smallpox or polio these days, but diseases like diabetes and heart problems are more common. Why? Class 8
We rarely see cases of smallpox or polio these days, but diseases like diabetes and heart problems a
How does your body respond to an infection such as common cold? Class 8
How does your body respond to an infection such as common cold? Class 8 How does your body respond t
Interact with an entrepreneur and learn the steps for cultivation of mushroom. Class 8
Interact with an entrepreneur and learn the steps for cultivation of mushroom. Class 8Interact with
Study the different parts of a macro fungus mushroom using a magnifying glass and microscope/foldscope. Class 8
Study the different parts of a macro fungus mushroom using a magnifying glass and microscope/foldsco
Fermented food items like fermented soybeans and fermented bamboo shoots are consumed as traditional Class 8
Fermented food items like fermented soybeans and fermented bamboo shoots are consumed as traditional
India has a long history of biogas production. One of our oldest biogas plants was set up in late 1850s Class 8
India has a long history of biogas production. One of our oldest biogas plants was set up in late 18
Observe the set-up given in Fig. 2.15 and answer the following questions. What happens to the sugar solution Class 8
Observe the set-up given in Fig. 2.15 and answer the following questions. What happens to the sugar
A student observes that when curd is left out for a day, it becomes sourer. What are two possible Class 8
A student observes that when curd is left out for a day, it becomes sourer. What are two possible Cl
Take 2 slices of bread. Place one slice on a plate near the sink. Place the other slice Class 8
Take 2 slices of bread. Place one slice on a plate near the sink. Place the other slice Class 8Take
Devise an experiment to test that microorganisms need optimal temperature, air, and moisture for their growth. Class 8
Devise an experiment to test that microorganisms need optimal temperature, air, and moisture for the
Identify the following microorganisms Class 8
Identify the following microorganisms Class 8Identify the following microorganisms : Class 8(i) I li
Snehal dug two pits, A and B, in her garden. In pit A, she put fruit and vegetable peels Class 8
Snehal dug two pits, A and B, in her garden. In pit A, she put fruit and vegetable peels Class 8Sneh
A farmer was planting wheat crops in his field. He added nitrogen-rich fertiliser Class 8
A farmer was planting wheat crops in his field. He added nitrogen-rich fertiliser Class 8A farmer wa