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Think lab activity

Think lab activity

  • MIGHTY FLY
  • SEED AWAY
  • CO2 BALLOON
  • FINE SIEVE
  • MAGIS ROD
  • MOIST COCL2
  • PINHOLE CAMERA
  • SALTY MAGIC
  • LAVA LAMP

MIGHTY FLY

This activity is based on centrifugal force. Students learnt that centrifugal force acts on anything that rotates around a center.

Concept: Centrifugal force acts on anything act on the centre

SEED AWAY

This activity is based on dispersal of seed. Students learnt that the seeds get dispersed through air, wind and water. Plants need way to spread their seeds in order to avoid competition for food.

Principle: Plants can spread into new environment if their seeds are dispersed.

CO2 BALLOON

This CO2 balloon activity involves inflating a balloon by using the gas released when vinegar and baking soda are mixed together .Lime water was used to test the type of gas released.

Principle: Indications of chemical change.

FINE SIEVE

Fine sieve activity involves separating a mixture of salt and sugars with the help of a sieve. As the sieve shakes it separates the salt from the sugar

Principle: Separation of mixture.

MAGIC ROD

Magic rod activity is performed by filling a test tube with matter and using this test tube to read text that is written in small font.

Principle:Understanding transparent and opaque object

MOIST COCl2

The moist COCl2 activity shows that plants exhale moisture or undergo transpiration. It involves taping a COCl2 paper strip on a leaf .When the leaf is kept in a dry area the bluish coloured cocl2 paper turns pink

Principle: Transpiration loss of water vapour from the leaf of plant.

PINHOLE CAMERA

When a pin hole camera is kept in front of the object, sharp inverted image is formed on the butter paper screen.

Principle: When light falls on an object it is reflected.

SALTY MAGIC

When four different colours are added to a saturated solution and taken in a syringe the four different colours are separated from each other.

Principle : Saturated solution does not mix with each other when it is left undisturbed.

LAVA LAMP

The lava lamp activity is a combination of two immiscible liquids in water blobs float in the oil, when an effervescent tablet is added to it.

Principle: Properties of material – Immiscibility of liquids.

BLIND SPOT

This is an activity of Grade 8 children. It was done to make the children to understand the region of vision in our eyes and also the function of rods and cones in the vision.

Principle: Laws of Light reflection and functioning of retina.

JELLY MARBLE

An activity of grade 8 Children. Jelly marbles are a polymer that absorbs 300 times its weight in water. They become a round sphere with which we can perform several interesting experiments. The light rays pass through them without being scattered the reason is because the light that is passing through the sphere is only refracted, or bent, by the edge of the sphere. Since most of the sphere refracts the same as the water in the bowl, the marbles seem to disappear. You can reuse the marbles many times, as long as you keep them clean and free of the oil that comes off your skin. The more you touch them, the less they will be able to disappear because the dirt and oil on your fingers will adhere to the outside surface of the marbles. The oil and dirt will also refract the light and cause them to be seen.

Principle: Properties of polymers and its application, Light refraction

BOYLE'S BALLOON

An activity with a syringe and a balloon for grade 8 children which took a day to day science concept at ease to the students. The knotted balloon is inserted into the syringe.When the piston is pulled it stretches the balloon and as the piston is pushed the balloon shrinks. When piston is released it recoils back and the balloon goes back to its original shape.

Principle: The concept of Boyle's law that is when the pressure increases Volume decreases and vice versa was explained through this activity

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