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Physical universe:
The universe is vast. The Earth we live on appears to be just a speck of dust circling a small star in a remote corner of an obscure galaxy. If we are a speck in the immense space, we also occupy dnly an instant in the expanse of time. The universe is also very old. We now know that it is about fifteen or twenty billion years OM, while we, the human beings have been around for only two million years or so. This vast and ancient universe is populated with a variety of objects. Let us now understand what objects constitute the universe and how they are distributed. In other words, what the physical structure of the universe is. In doing so, we will not go into its chemical composition or aoy other details. However, before we embark on this venture, we will give you an idea of the cosmic distances, so that you're able to appreciate what follows.
Why does a glacier move? It moves due to the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing them to melt.
To study the relation between volume and pressure of air Get a rubber bung or 'door stop' which just fits in a narrow glass jar or measuring cylinder. Attach it to the lowe
A simple equal-arm lever Make a wooden base 15 cm square and 2 cm thick. In the centre of the base fasten one more block of wood 4 cm square and 3 cm thick. Fasten to two sides
illness expenditure on health
You can present this assignment using the format of your choice, e.g. Poster, webpage, booklet, animation, short film etc. Select a chronic condition (Type 2 Diabetes) and develop
why and where endomitosis happen?
Ship-building: The shipbuilding industry in the seventeenth century. witnessed far-reaching changes that mainly resulted from imitating European techniques. The Indian sea-g
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100 W m-2 + 4.56 J s-1 m-2 – 23.567 W m-2 =
Observing the phases of the moon Over the time of a lunar month have the children make nightly observations and illustrate drawings of the moon. Start at new moon and continue
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