Science & Technology

What is the Higgs boson? Why is the world of science so excited by its discovery? What are its properties? What impact has this discovery had on theoretical physics?

Wounds are an unavoidable part of our life. Some heal fast, some take time, some leave scars behind. An organ in the human body with the inherent ability to heal itself is the skin. How does the skin do this?

Making a proper parachute toy requires a little bit more efforts in terms of measurement and precision. Using a plastic cover with a paper cup can be a simpler model for smaller kids to enjoy making parachute. Replace the paper cup with a small weight and see what happens.

In the very hearts of galaxies, like our Milky Way, lurk giant black holes that sometimes evolve into monstrous powerhouses of light. How do we know that they exist? How are they born? How do they grow? Are they important in the ‘big picture’?

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)


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