203 items in this section. Displaying page 15 of 21
Is New York Burning?
In New York, people consume about 500 million kilowatt hours of energy per square kilometre every year. This is almost half of the total amount of solar energy (heat of the sun rays) falling on such an area in a year. So New Yorkers, in effect, live under a sun-and-a-half. In addition, paved areas, walls and the roofs of buildings absorb and re-radiate more heat than soil or plant-covered ground. Water runs off these surfaces more rapidly, allowing little cooling by evaporation....
The Tree is an Invisible Heater
Have you ever noticed that bare winter tree in your garden, in the park or in school? Without leaves the tree looks so cold and dry, but surprise of surprises, it keeps the grass below warm. So much so that the tiny blades never get any frost on them. In contrast, grass in parks without trees to protect them are usually in white frosty disguise in winters. Why is that so? You would never believe it but that leafless tree acts like a heater to the grass below....
In a Minute
In a Minute [] There’s a flower found in the jungles of Africa that changes its colour seven times in one minute! It is known as the ‘Rainbow’ by the people there. Light travels a distance of 18,00,00,000 kilometres in one minute, which means 30,00,000 kilometres in a second! There’s a fish found in the waters of the Amazon river which can gulp down 250 fish, big and small, in one minute!...
Dot 2 Dot
How to solve the Dot 2 Dot: Using a pencil, draw a line, connecting number “1” or alphabet “a” to the last character in the series to create the hidden image. One can always use the image later for colouring. Note: This is an offline activity. You may need to print this page in order to solve the puzzle. Join the dots and you will know the number of apples in this picture. It took an hour for Mrs Batliwala to decide on her meal....
Call them Together
When there is one of them we call it by its name but when they are in a group we give them a special name. Let’s take a look at a few of the animal groups.
Tools we Use
You may have used some of these tools yourself or seen others use them. See if you can identify them correctly.
Singing Sensations
They have captured millions of hearts with their songs. Let’s see how abreast you are with the happenings in the music world.
The Magnetic Fish Bowl
This unusual fishing game is simple to assemble and great fun to play. And you won’t have to worry about pulling poor live fish out of the water. Items required: The Magnetic Fish Bowl [] Four to six magnets (one for each player; magnets can be found at any hardware shop), paper clips, stickytape, four to six thin nine-inch sticks (one for each player; unsharpened pencil work really well), a large bowl of water, aluminium foil, string and scissors....