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To show the impact of a raindrop on soil
Place a saucer or jar lid filled with soil on a piece of white paper. Fill a medicine dropper with water and hold it about a metre above the soil. Release water a drop at a time and get how much soil is splashed out on the paper. Place a clean sheet of paper under the saucer. Again free drops but hold an obstacle like as a pencil in the path of the drop to break the force of the raindrop. Do plants stop the wearing away of the soil in this way?
TO LEARN THE USE OF A CARBON DIOXIDE FIRE EXTINGUISHER : All chemical laboratories should be provided with carbon dioxide and or dry chemical fire extinguishers. Carbon dioxide fi
Explain the Dichromates or Mild Colour Blindness A dichromate individual possesses only two cone pigments. Lack of the red pigment, called protanopia, makes distinguishing of t
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Q.How does the atmosphere act as a blanket? The atmosphere acts as a blanket by performing the following functions: (a) It keeps the average temperature of the Earth fairly c
DIAGONAL RELATIONSHIP IN A PERIODIC TABLE
a food chain that does not start with plants??
porogamic fertilization
Other visible light hazards : Ordinary, visible light can present a hazard under certain conditions. You can burn paper by focussing the sun's rays using a small magnifying lens.
i dont know how to set up my science board
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