Collect news items about handloom workers and cotton growers. Analyze one news item in your own way.

Collect news items related to global warming and its impact appearing in newspaper and magazines.

We observe the news about cyclones in televisions and newspapers. Write any two questions that arise in your mind about how cyclones are formed.

Collect some articles and photographs from news papers and magazines about storms and cyclones. Make a story on the basis of what you learnt in this chapter.

Collect news from newspapers about milk production and impurities in milk. Prepare a note and display it on wall magazine.

Collect different plastic items from your surroundings. Classify them as transparent, opaque and translucent.

Ask your elders and collect the information about seeds. In the older days farmers preserved their own seeds. How did they preserve?

Photosynthesis is the way plants make food in every leaf by using different items. Write your feelings on this.

Did you ever face or hear about flood based on your personal experience or from the knowledge of news articles write few sentence on floods

If the lines represented by the equation 3y^2-x^2+2sqrt3x-3=0 are rotated about the point (sqrt3,0) through an angle of 15^@ , one is clockwise direction and other in anticlokwise direction so that they become perpendicualr, then equation of the pair of lines in the new possition is