CBSE Class 8 Science Micro Organisms Friends and Foe Assignment

A. Fill in the blanks 1.Microrganisms may be unicellular or ___ 2. __ bacteria help to make curd from milk. 3. Disease causing microorganisms are called ___. 4.Ammonium salt in the soil is converted first into nitrites by____ bacteria. 5. The ability of one's body to resist a…

CBSE Class 8 Science Force and Pressure Assignment

Question. A car accelerates on a horizontal road due to the force exerted by: (A) the engine of the ear (B) the driver of the car (C) the earth (D) the road Answer: D Question. While walking on ice, one should take small steps to avoid slipping. This is because smaller steps…

CBSE Class 8 Science Food Production Assignment Set A

Q.1. Fill in the blanks:- 1. The practice of growing fruits, vegetables and ornamental plants is called ____________ . 2. A ___________________ field is one that is left uncultivated for one or more seasons. 3. In the cold storage, the temperature is maintained between…

CBSE Class 8 Science Food Production Assignment Set B

1. Name the following: - a. Science of cultivating food. b. Protein present in egg. c. Crop sown during monsoon. d. The process of converting atmospheric nitrogen into nitrogenous compound. e. One plant which needs to be transplanted. 2. Differentiate between the…

CBSE Class 8 Science Electricity and Lightning Assignment Set A

I Fill in the blanks:- 1. A property of matter, called ---------------- gives rise to electricity. 2. Particles that carry negative charge is called ___________ . II. Choose the correct options:- 1 A nonmetal which is not an insulator a) Carbon b) Sulphur c) Oxygen d)…

CBSE Class 8 Science Wise and Otherwise Assignment Set A

Wise and Otherwise: A Salute to Life –SudhaMurthy Answer the following questions after reading the book. Draw the graphic organizers in question 1 and 2 on A4 size coloured sheets and fill up the answers. Submit your sheets in a beautifully handmade folder. Use your own…

CBSE Class 8 Science Synthetic Fibers And Plastics Assignment

Question. Which of the following is a thermoplastic ? (A) Bakelite (B) Melamine (C) Phenol (D) P.V.C. Answer.D Question. Which is used in making of thermocoal ? (A) Polypropylene (B) Polyethylene (C) Polystyrene (D) High density polyethylene Answer.C Question. Which polymer…

CBSE Class 8 Science Stars and the Solar System Assignment

A.TICK THE CORRECT OPTIONS: Question. When the moon is in between the Earth and the Sun, we see_____________ . (a) New moon (b) Full moon (c) Quarter moon (d) Crescent moon Answer. a New moon Question. Which of the following is not an inner planet? (a) Mercury (b)…

CBSE Class 8 Science Sound Assignment

Question 1: How does the sound produced by a vibrating object in a medium reach your ear? Answer- When a disturbance is created on an object, it starts vibrating and sets the particles of the medium to vibrate. These vibrating particles take the sound from object to our ear…

CBSE Class 8 Science Science and Technology Assignment Set B

Section – A : Chemistry 1) What is friction? What are the two main factors on which the force of friction depends? 2) What is the principle used in ball bearings? How are ball bearings useful to us? 3) What is viscous drag? State three factors on which it depends. 4) With…

CBSE Class 8 Science Science and Technology Assignment Set A

Section – A : Physics 1) Draw a ray- diagram of periscope. Write its working principle. 2) Describe the phases of moon with the help of diagram. 3) Differentiate between : i) stars and planets ii) planets and satellite 4) What are the common eye defects? Give their causes…

CBSE Class 8 Science Revision Assignment

A. Give one word of the following : 1. Simple plant-like organisms which make their own food by photosynthesis -------------------- 2. Reflection from a smooth mirror is called -------------------- 3. The phenomenon of scattering of white light -------------------- 4.…

CBSE Class 8 Science Reproduction Assignment Set A

I. Define the following : 1. Taboo 2. Foeticide 3. Gender role 4. Ovulation 5. Menstruation 6. Endocrine glands 7. Hormones 8. Twins 9. Internal Fertilization 10. External Fertilization   II. Name the following : 1. Fusion of male and female cell 2. Male…

CBSE Class 8 Science Reproduction in Animals Assignment

VERY SHORT ANSWER TYPE QUESTIONS:- I. Tick the correct option:- 1. Internal fertilization occurs (a) in female body (b) outside female body (c) in male body (d) outside male body Answer : A 2. A tadpole develops into an adult by the process of (a) fertilization (b)…

CBSE Class 8 Science Reaching the age of Adolescence Assignment

Q1. What is adolescence? Answer : It is the period of life when the body undergoes changes, leading to reproductive maturity. Q2. Define puberty. Answer : The stage when human body becomes sexually mature. Q3. Enlist the changes occurring in males and females during puberty…