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Observing sun spots
Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the sun is formed on a piece of white cardboard placed a short distance from the eyepiece lens. If sun spots are there on the surface of the sun you may be able to observe them as small dark spaces of irregular outline on the image. Caution. Do not look at the sun by the telescope, unless your eyes are protected by a dark glass filter.
what is a chemical
please explain cholecsystikinin and the gallbladder functions
Procedure : Unscrew the plug top with the help of a screw driver. Remove one of the screws on the wire clamp and loosen the other. Cut away about 50 mm of the outer sheath of the
discuss the importance of society and culture to existence of man .
saan nakuha ang salitang tubig?
OBELIA IS CONSIDERED TO BE OF SPECIAL INTEREST IN ZOOLOGY AND AS AN ANIMAL SHOWING AN INTERMEDIATE GRADE OF ORGANISATION
ginger is the steam of ginger plant
structure and function of respiratory organs in arthropoda with diagram
What is coal? The remains of trees and shrubs grew millions of years ago, when the weather was mild and moist.
what is a soda lime test?
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