Basic Guidelines for Excellence in Laboratory practices in SCIENCE (Class IX) For Laboratory Assistants
EXPERIMENT No- 1-AIM- To verify the laws of reflection of
sound
EXPERIMENT No- 2-AIM- To determine the density of solid
(denser than water) by using a spring balance and a measuring cylinder.
EXPERIMENT No- 3-AIM- To establish the relation between the
loss in weight of a solid when fully immersed in (a) tap water (b) strongly
salty water, with the weight of water displaced by it by taking at least two
different solids.
EXPERIMENT No- 4-AIM- To observe and compare the pressure
exerted by a solid iron cuboid on fine
and/ wheat flour while resting on its three different faces and to
calculate the pressure exerted in the three different cases
EXPERIMENT No- 5-AIM- To determine the velocity of a pulse
propagated through a stretched string/slinky.
EXPERIMENT No- 6-AIM- To study the characteristic of
spirogyra/Agaricus, Moss/Fern, Pinus (either with male or female cone) and an
Angiospermic plant. Draw and give two identifying features of groups they
belong to.
EXPERIMENT No- 7-AIM- To observe and draw the given
specimens-earthworm, cockroach, bony fish and bird. For each specimen record
(a) one specific feature of its phylum. (b) one adaptive feature with reference
to its habitat.
EXPERIMENT No- 8-AIM- To verify the law of conservation of
mass in a chemical reaction.
EXPERIMENT No- 9-AIM- To study the external features of
root, stem, leaf and flower of monocot and dicot plants.
EXPERIMENT No- 10-AIM- To study the life cycle of mosquito.
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