Microorganisms are very tiny living things. They are so small that you need a microscope to see them. How do ecosystems work ... What is renewable and non-renewable energy? Discover the ...

Just as keeping your car in shape improves your fuel efficiency, keeping your home in shape improves your energy efficiency ... One of the best things you can do for wildlife and the planet, today and ...

Photosynthesis is nature’s take on solar power, its way of making use of all that light energy that comes from the Sun. Modern solar cells do this ... absorbs other living things to create ...

All living things need oxygen to survive. Our bodies use it to turn the fuel from our food into energy. The air moves through tubes in the lungs to tiny air sacs called alveoli. Oxygen passes from ...