Plant, tiger, rabbit, fox, eagle. Did you find any connection among the above list of things. If we remove Rabbit from the list what will happen?

What happens if cost price is selling price? Do we get any such situations in our daily life? It is easy to find profit % or loss % in the above situations. But it will be more meaningful if we express them in percentages. Profit % is an example of increase percent of cost price and loss % is an example of decrease percent of cost price.

(a) In a meter bridge the balance point is found to be at 39.5cm from the end A. when the resistor S is of 12.5Omega. Determine the resistance of R. Way are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips ? (b) Determine the balance point of the bridge above if R and S are interchanged. (c ) What happens if the galvanometer and cell are interchanged at the balance point of the bridge ? Would the galvanometer show any current ?

Observe a lawn in your area (If you have one) and see how it is maintained. Find out from the gardener the different types of plants that he removes from time to time. Do you think a farmer does the same thing on his farm ?

Grass to Grasshopper to From to Snake to Hawk. What will happen if we remove from from the above food chian? Explain.

If we want to show a food chain consisting of grass, rabbit, snake and hawk then connect the given picture in textbook of organisms by putting arrows and make a food chain. (A). Name the producers and consumers in the above food chain. (B) Try to guess what the arrows marked by you are indicating. (C) Identify atleast four other food chains from your surroundings.

We have conducted experiment that proves the release of oxygen when photosynthesis happens ? i) What are the plants used for this experiment ? Where do they grow ? ii) How did you conduct the above experiment ? In which context are large number of air bubbles released? Did you notice?

Construct the food web with the following? Grass Plants Grasshopper Frog Snake Eagle Goat Fox Tiger Wolf Rabbit .

A list of things in a house are given in table 2. Name the materials from which each object may possible be made of: (If you don't know which material the objects is made of, discuss with your friends and find out.) How many types of material can be used for making chairs?