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.
Down:
(5) Crop
Across:
6. Winnowing
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.
Explain why fossil fuels are exhaustible natural resources.
The bulb does not glow in the setup shown in Fig.14.10. List the possible reasons. Explain your answer.
Write a short paragraph on the harms caused by microorganisms.
Prepare a list of objects around you that are electroplated.
Compare LPG and wood as fuels.
Prepare a brief speech on global warming that you have to make in your class.
How are test tube babies born?
Give two examples each of situations in which you push or pull to change the state of motion of objects.
Write 10 lines on the usefulness of microorganisms in our lives.
Explain the importance of reproduction in organisms.