Welcome to the Chapter - , Class 8 Science - NCERT Solutions page. Here, we provide detailed question answers for Chapter - .The page is designed to help students gain a thorough understanding of the concepts related to natural resources, their classification, and sustainable development.
Our solutions explain each answer in a simple and comprehensive way, making it easier for students to grasp key topics and excel in their exams. By going through these question answers, you can strengthen your foundation and improve your performance in Class 8 Science. Whether you're revising or preparing for tests, this chapter-wise guide will serve as an invaluable resource.
Describe with the help of a diagram an instrument which can be used to detect a charged body.
Sketch larynx and explain its function in your own words.
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
Make a labelled diagram of a candle flame.
What is metamorphosis? Give examples.
The following Table shows the total power shortage in India from 1991– 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.
Describe the construction of a kaleidoscope.
Make sketches of animal and plant cells. State three differences between them.
What is a constellation? Name any two constellations.
Complete the crossword with the help of clues given below:
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
Explain how you can locate the Pole Star with the help of Ursa Major.
Define asexual reproduction. Describe two methods of asexual reproduction in animals.
What are antibiotics? What precautions must be taken while taking antibiotics?
Fill in the blanks :
(a) Phosphorus is very _________ non-metal.
(b) Metals are ________ conductors of heat and ________ .
(c) Iron is __________ reactive than copper.
(d) Metals react with acids to produce _________ gas.
Suggest three measures to protect ourselves from lightning.
A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.
Complete the following word puzzle with the help of clues given below.
Down
1. Providing water to the crops.
2. Keeping crop grains for a long time under proper conditions.
5. Certain plants of the same kind grown on a large scale.
Across
3. A machine used for cutting the matured crop.
4. A rabi crop that is also one of the pulses.
6. A process of separating the grain from chaff.
Give two examples of each.
(a) Kharif crop
(b) Rabi crop
Describe the threat to the beauty of the Taj Mahal.
Name the largest planet of the solar system.