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The effect of petrol on surface tension
Being sure that the plate is has to be clean. It is wise to rinse the plate in cold water for a time before filling it. Instead of soap, place single drop of petrol on the water near the edge of the plate. How does petrol influence the surface tension of water?
Structure of the brain. Include different parts and their function.
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
Give the common name of the historic mineral that was the original source of radium and the first substance in which helium was discovered on earth: Pitchblende
Changes in Social Organisation: We find that the above trend in social organisation led to a tendency which eventually stifled the progress of these civilisations and led to
Procedure 1 . After the dissection experiment is over the dead animals are put in disposable paper bags and the bag is sealed. Animal tissues and excreta should also be put and
Does a piece of glass reflect more light than a piece of paper?
Accident report forms : Accident report forms are to be used in case of serious accidents. A properly completed accident report form should contain the following information: (
Effects of Soil Aeration Some soil pores are full of O 2 and/or CO 2 gas. These gases take part in the respiration of plants. We know that respiration involves the oxidatio
I need help finishing my science fair project, can you help me?
how can change the image to array
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