Deepak Divya lessons.

1. Why warmth is necessary? without warmth living things cannot live.needed for seed germination, for hatching eggs by birds, In summer animals losing hairs or fur to get warmth to feel cold with thinner coat, Thick woolly coats help animals in cold region to keep warm, birds fluffing up their feathers to keep warm,We wear woollen clothes to keep warm.
2. our  body normal temperature 37 degrees Celsius.when it is very hot our body sweats to get rid of heat.Putting on warm clothe to save from cold.
3. Heat stroke comes to people who cannot bear the heat. during summer.
4. Water we boil to get rid of germs. Milk may contain certain germs which cause TUBERCULOSIS.
5. PASTEURIZ ATION.Milk heated to a very high temperature and suddenly cooled.to a very low temperature.
6. Who is the famous scientist and where does he hail from?
7. French, LOUIS PASTEUR.
8. What is heat? it is a form of energy.
9. where does heat come from? first the Sun To get heat the animals?Living get their heat from heat of the body.
10. carbohydrates and fats are burnt in your body give energy.
11. Electricity, fire,  etc gives heat energy too.
12. What are fuels?
13. substances which we burn to give us heat
14. Fuels: cooking gas, kerosene, wood, coal, and oil.
15.  Where is the fuel used? In engines of the cars, buses, trucks and scooters.
16. Flammable substances: paper and cloth. they catch fire easily.
17. Accidents happen mostly due to carelessness.
18. never play with matches. 
19. Cooking gas leak can be found due to the peculiar smell.
20. turn off the gas cylinder when not in use.
21. lighting a match,switching on the electric light when the gas leak there will surely catch fire.
22. Fire extinguisher: brings forth Foam never allowing the oxygen in the air to kindle more the fire.
23. Sand or mud can also put off  fire,
24.  Wet things do not burn easily. fires put out by pouring water on them.
25. Be careful,If you touch  by mistake the very hot item or the electrical equipment like Iron, hold the burnt part in running cold water from the tap.
26. When clothes catches fire simply close it by pouring water.
27. or do not run  it will get worse. fire need oxygen. cut off from where the oxygen comes.
28. Do not use your saree  when you want to take down the vessel.
29. do not wear an nylon dresses .they catch fire easily.
30. When clothes catch fire you can use a woollen blanket to roll around the bod too.

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Deepak Divya lessons

1. What's our normal body temperature?   37 degrees celcius.
2. What causes tuberculosis? Germs in milk
3.  What do burning things use?  Oxygen
4. What cuts the oxygen supply in the fire extinguisher?The foam 
5. What is burnt in our body to give heat energy? food
6. What is used to measure the body temperature ? Thermometer.
7. Which energy is absorbed when Ice melts into water? heat
8. What are called conductors?Substances which allow heat to pass through them.
9. What does fuel on burning give? heat.
10. Which are the flammable substance?paper, cloth 
11. because they catch fire soon
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13. Pasteurization> the method of killing germs in milk by heating it to a very high temperature  and immediately cooling it to a very low temperature is called.
14. What is physical change?The change in which no new substances are formed  and are mostly reversible.
15. What are insulators? Substances which do not  allow heat to pass through them 
16. what is reversible process?
17. The newly formed products can be changed to its original sgate on changing the condition.Ex; melting of ice
18. solidification of coconut oil  or ghee.
19. What is irreversible process? The newly formed products cannot be changed into its original state.
20. Which animals are warm blooded?The animals which can maintain constant body temperature. throughout the year.
21. ex: Human beings,birds
22. Which animals are cold blooded?
23. Those animals that cannot maintain  a constant body temperature It varies with outside temperature.
24. It is dangerous to run when clothes catch fire
25. This will catch more fire flames big,bigger, and can cause more damage.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
26. Evaporation: Physical change where heat is absorbed.
27. Condensation: Physical change where heat is taken away or given out.
28. What change happens when cooking of rice?
29. chemical change.
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this is what i want

1. This is what I want to learn