Describe with the help of a diagram an instrument which can be used to detect a charged body.
An electroscope can be used to detect whether a body is charged or not. In an electroscope, two metal foils are hanged with the help of a conductor in the glass jar with lid. When a charged body touches this conductor then its charges get transferred to the metal foil and they separates due to like charges. This shows that an electroscope detect charges.
Sketch larynx and explain its function in your own words.
What is metamorphosis? Give examples.
Make a labelled diagram of a candle flame.
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
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.
Make a sketch of the human nerve cell. What function do nerve cells perform?
Draw a labeled sketch of the human eye.
Name the largest planet of the solar system.
What are antibiotics? What precautions must be taken while taking antibiotics?
Explain why plastic containers are favoured for storing food.
What is menstruation? Explain.
What are sex hormones? Why are they named so? State their function.
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.
Four children were asked to arrange forces due to rolling, static and sliding frictions in a decreasing order. Their arrangements are given below. Choose the correct arrangement.
(a) Rolling, static, sliding
(b) Rolling, sliding, static
(c) Static, sliding, rolling
(d) Sliding, static, rolling
Make a sketch of the human nerve cell. What function do nerve cells perform?
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.