Science & Technology

This frog made with a piece of cardboard, rubber band and cello tape will jump suddenly and amaze the observer. A funny toy to demonstrate elasticity, potential and kinetic energy, acceleration etc. Some art work on the toy will make the toy look more interesting.

Materials needed: Cardboard piece, rubber band, cello tape and scissor 

 

 

What do you do with the old CDs at home, which aren't being used? How about involving your students to make some lovely toys out of it? We have curated some short videos on toys which can be made from old CDs.

CD Hovercraft

Discussion Points: Air Pressure, Newton's third Law

Blow and Float CD

In an article published in the November 2016 issue of At Right Angles we had seen how geometrical fractal constructions lead to algebraic thinking. The article had highlighted the iterative construction processes, which lead to the Sierpinski triangle and the Sierpinski Square carpet. Further the idea of self-similarity within these fractals was reinforced through the recursive and explicit relationships between various stages of the fractal constructions.

I am sharing my experience of seven Science Fairs which were held in different schools of Malpura block in 2019 and which was inspired by one Science Fair held in 2018 (Malpura). The best part of these fairs was the deep involvement of the Science teachers from all these schools.

The interesting nature of magnets attracts everyone, from playing with magnets for fun to using appliances with magnets, we find them everywhere around us. Our students usually have some experience around magnets, here is a lesson plan which can guide them through the nature and properties of magnets including their uses.

This electric motor boat is easy to make and can be seen sailing in a bath tub or a small pond.

Materials Required:

two plastic bottle, two pencils (find used pen instead or bamboo stick of same size), hard cardboard (instead of popsicles), a small dc motor, propellor (you can make yourself with a plastic bottle), cello tape, soldering iron, glue (fevibond will work)

Insects are everywhere in our life. Often we ignore them either because they are too small or too common. Through this series of activities we focus on children's observation skill and guide them to find out common insect's role & function in our surroundings. Children can understand all insects are neither harmful nor do they disturb us and many insects are helpful for us especially in organic farming / gardening.

It is said that India has about 2,500 species of fish which are 11.7% of fish species in the world. Among India, as Bengal is called ‘the land of Maach (fish) & Bhaat (rice)’, fish is very popular diet in West Bengal. Diversities of water bodies existing in the landscape of West Bengal offers wider variety of fishes too.

The lesson plan is for class 6th, Science Chapter - Getting to know Plants.

The emphasis in the books is on the process of science - observing, asking questions, trying to find the answers through further observations and experiments - rather than on information that chil- dren are expected to memorize without any real understanding. Needless to add, it would be difficult to use this book meaningfully without doing the activities.

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