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How to mount fossils
If you occur to live in a locality where fossils are plentiful, it will be interesting to have the peoples make a fossil collection for the school museum.
Fossils can be neatly mounted in plaster of Paris by following the commands given for mounting rocks and minerals.
Nitrogen Cycle: Nitrogen is vital part of many essential organic compounds especially nucleic acids and proteins. It also forms a major part (79 per cent) of the atmosphere. I
Uranus Uranus (Fig.) appears as a green disc with vague markings, even through the largest telescopes. Its colour is produced by the large amounts of methane and ammonia clo
How the Acid/Base Balance is maintained in an Acid Diet? Let us first see how the acid/base balance is maintained in an acid diet. The sequence of steps involved includes: 1
Explain Nasal secretions and Cerumen Nasal secretions: These can destroy harmful organisms due to lysosomal activities. Cerumen (wax of ear): It traps and kills the bacteria
The rain cycle You can reproduce the rain cycle in miniature in your classroom. Place a box of plant seedlings on the table. Place a metal tray about 35 to 40 cm above the box
Why do organisms need water? Organisms need water for the following reasons: (i) All cellular processes need water as a medium. Usually, the reactions that take place in our
why does sedimentary rock form fossils
Cosmic Distances: If we asked you what the distance between Delhi and Kanyakumari is, you would say that it is roughly 3000 km. Another way of answering the question would
what are the systems that are affected by asthma
Role of communication in promoting education: Transmission of knowledge and information, which is the first step in education, is obviously possible only through communication
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