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"All animals are equal but some animals are more equal than others."

Physics

HOW DO HUMAN BEINGS GET THEIR ENERGY? »
Our energy comes from the Sun — but not directly. Plants convert sunlight into chemical ...
HOW DOES A POWER STATION WORK? »
Coal, oil or gas may be used to fuel a power station. All of these are fossil fuels, formed ...
WHERE DOES ENERGY COME FROM? »
Energy is what makes things happen. Nothing can live, move and grow, or give off light, ...
WHAT ARE THE DIFFERENT KINDS OF ENERGY? »
Chemical energy is released when chemical reactions take place. It is stored in many ...
HOW DO WASP AND BEE STINGS DIFFER? »
Although both feel painful, wasp stings are alkali and bee stings are acid. That means that ...

Chemistry

HOW DO HUMAN BEINGS GET THEIR ENERGY? »
Our energy comes from the Sun — but not directly. Plants convert sunlight into chemical ...
HOW DOES A POWER STATION WORK? »
Coal, oil or gas may be used to fuel a power station. All of these are fossil fuels, formed ...
WHAT ARE THE DIFFERENT KINDS OF ENERGY? »
Chemical energy is released when chemical reactions take place. It is stored in many ...
HOW DO WASP AND BEE STINGS DIFFER? »
Although both feel painful, wasp stings are alkali and bee stings are acid. That means that ...
HOW DO ACID AND ALKALI SOILS DIFFER? »
It is possible to measure the acidity or alkalinity of soil. Acid soils are usually found ...

Biology

COULD HUMANS FIND HOMES ELSEWHERE IN THE UNIVERSE? »
As there are billions of planets in our universe, it is likely that some of them could ...
DOES THE PLANET HAVE ITS OWN RECYCLING SYSTEMS? »
The saying that there is nothing new under the Sun is strangely true. The stuff that makes ...
WHICH KINDS OF ENERGY WILL NOT RUN OUT? »
Wind, moving water and sunshine are always to be found somewhere on the Earth. All of these ...
WHAT ARE NON-RENEWABLE RESOURCES? »
Living things can grow and reproduce themselves. Given the right conditions, they can ...
HOW MUCH LONGER ARE PEOPLE LIVING NOW THAN IN THE PAST? »
In many parts of the world, life expectancy — the number of years that a person can expect ...