Why should paper be saved? Prepare a list of ways by which you can save paper.
To make paper, trees are cut down. Trees maintains the balance of the nature of the earth. In order to save trees, we have to save papers.
We can save paper in following ways:
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.
Make sketches of animal and plant cells. State three differences between them.
What is a constellation? Name any two constellations.
Describe the construction of a kaleidoscope.
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.
It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
In which female reproductive organ does the embryo get embedded?
What is the term used for secretions of endocrine glands responsible for changes taking place in the body?
Name the largest planet of the solar system.
List three states in India where earthquakes are more likely to strike.
List sources of noise pollution in your surroundings.
Two mirrors meet at right angles. A ray of light is incident on one at an angle of 30° as shown in Fig. 16.19. Draw the reflected ray from the second mirror.
How can you contribute to the maintenance of green wealth of your locality? Make a list of actions to be taken by you.
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
Define adolescence.