Question

What is Science?

Answer 1

Nishat Tasnim

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. ... In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.
The word "science" probably brings to mind many different pictures: a fat textbook, white lab coats and microscopes, an astronomer peering through a telescope, a naturalist in the rainforest, Einstein's equations scribbled on a chalkboard, the launch of the space shuttle, bubbling beakers …. All of those images reflect some aspect of science, but none of them provides a full picture because science has so many facets:
Science is both a body of knowledge and a process. In school, science may sometimes seem like a collection of isolated and static facts listed in a textbook, but that's only a small part of the story. Just as importantly, science is also a process of discovery that allows us to link isolated facts into coherent and comprehensive understandings of the natural world.
Science is exciting. Science is a way of discovering what's in the universe and how those things work today, how they worked in the past, and how they are likely to work in the future. Scientists are motivated by the thrill of seeing or figuring out something that no one has before.
Science is useful. The knowledge generated by science is powerful and reliable. It can be used to develop new technologies, treat diseases, and deal with many other sorts of problems.
Science is ongoing. Science is continually refining and expanding our knowledge of the universe, and as it does, it leads to new questions for future investigation. Science will never be "finished."
Science is a global human endeavor. People all over the world participate in the process of science. And you can too!

Answer 2

Jafran Hasan

Science is "Well Explained Magic", a regular behaviour or religion of energy and particles of the universe. This is the only religion thats being followed strictly, undoubtedly.
Physics is the behaviour of energy and matter.
Chemistry tells us how the micro things act, how they transform into something else.
Biology is the behaviour of lives.
In very micro world, everything is just physics. Nothing else except energy.
The rest of these are just hacks. Hacks of the science, hacks of the regular behaviour.
Birds fly, and we discovered how do they do it. The science behind the flying is just hacking the wind flow. We invented planes then.
To hack or manipulate the regular behaviour of the universe for our own, we just need its KNOWLEDGE. That's called "stick of science". You can turn anything into possibility if you know the regular behaviour behind the phenomena. Science is all about observing, experimenting, deciding and then applying.
That’s the simplest definition which may not change everything what you know about science, but I can assume that you will love it.

Answer 3

the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

"the world of science and technology"