Questions : Our Universe

 Our Universe

Q.1. Describe the universe?

Q.2. Describe the Earth?

Q.3. Describe the stars?

Q.4. Describe the constellations?

Q.5. What causes day and night?

Q.6. Why does the moon wane and wax?

Q.7. What are planets?

Q.8. What are the three things found on the surface of the earth?

Q.9. What is the atmosphere?

Q.10. What are the constituents of our solar system?

Q.11. How many planets are there in our solar system?

Q.12. Describe the Sun?

Q.13. Why is the Sun important to us?

Q.14. Name the natural satellite of the earth.

Q.15. How does the moon shine?

Q.16. What is a satellite?

Q.17. What is the full moon?

Q.18. What is the new moon?

Q.19. Give the Hindi names of ‘new moon’ and ‘full moon’.

Q.20. What is the waning of the moon?

Q.21. What is waxing of the moon?

Q.22. In how many days we are able to see the full moon or poornima?

Q.23. In how many days we are able to see the new moon or amavasya?

Q.23. What is an axis?

Q.24. Describe rotation of the Earth?

Q.25. What is the result of the rotation of the Earth?

Q.26. Why is life possible on the Earth?

Q.27. Which country is called the land of the rising Sun?

Q.28. How can we prove that the Earth is round?

Q.29. Why do stars appear very small to us?

Q.30. Why do stars twinkle?

Q.31. What is the name given to a group of stars?

Q.32. Name four constellations.

Q.33. How many stars are present in the constellation Great Bear?

Q.34. What is the Hindi name for the constellation Great Bear?

Q.35. What is a Pole Star?

Q.36. How is Pole Star helpful to us?

Questions : Our Environment

 Our Environment

Q.1. What is an environment?

Q.2. What changes do we face in our environment due to ever increasing demands?

Q.3. Describe a Greenhouse.

Q.4. Which are Greenhouse gases and what is the greenhouse effect?

Q.5. What are the sources of Methane?

Q.6. What are the sources of ozone?

Q.7. What are the sources of nitrous oxide?

Q.8. What are the sources of carbon dioxide?

Q.9. What is the full form of CFC?

Q.10. Where is CFC used and how is it harmful to the atmosphere?

Q.11. What is global warming?

Q.12. What is the effect of global warming?

Q.13. What are the steps to control global warming?

Q.14. What is pollution and what are pollutants?

Q.15. Which are the four main kinds of pollution?

Q.16. Describe how air is polluted?

Q.17. What is the effect of air pollution?

Q.18. What is acid rain?

Q.19. How is depletion in the ozone layer harmful to us?

Q.20. Describe how water is polluted?

Q.21. What is the effect of water pollution?

Q.22. What is noise pollution?

Q.23. What are the sources of noise pollution?

Q.24. What are the effects of noise pollution?

Q.25. What are the sources of soil pollution?

Q.26. What are the 3 R's of waste disposal?

Q.27. What are the advantages of waste recycling?

Q.28. Describe the three R's of waste disposal?

Q.29. Which day is observed as the Vana Mahotsava day?

Q.30. Which steps are taken by the government to reduce pollution?

Q.31. How does deforestation affect pollution?

Q.32. How is conservation of wildlife affected by people?

Q.33. How can we help the environment?

Questions : Our Teeth

 Our Teeth

Q.1. How are teeth useful to us?

Q.2. What are called milk teeth?

Q.3. What are permanent teeth?

Q.4. How many kinds of teeth does a person have?

Q.5. What is the other name of cutting teeth?

Q.6. How many cutting teeth do we have in each jaw?

Q.7. What is the other name of tearing teeth?

Q.8. How many tearing teeth do we have in each jaw?

Q.9. What is the other name of grinding teeth?

Q.10. How many grinding teeth do we have in each jaw?

Q.11. What is enamel?

Q.12. What is a tartar?

Q.13. Why are permanent teeth important to us?

Q.14. What are the simple rules to avoid tooth decay?

Q.15. What happens when our teeth decay?

Q.16. What are the five golden rules for healthy teeth?