The Human Heart
The human heart is a muscle that lies on the left of the chest. It is about the size of a fist. The heart is like a pump that sends blood around your body.
Science and Technology
Endangered Species
An endangered species is a plant or an animal that faces a high risk of disappearing forever. Sometimes this happens because they have lost their natural habitat, at other times humans are the cause for such species becoming extinct.
Electricity
Electricity is the flow of tiny charged particles, mainly electrons, through a conductor, like a wire. It creates an electric current that powers our many devices and machines that we have in our household, from lights to computers.
Galileo Galilei
Galileo Galilei is often referred to as the founder of modern science. He made countless discoveries and built telescopes to study the stars and the planets.
Coffee
Coffee is one of the most popular hot drinks in the world. Almost a third of the world’s population drinks coffee.
The International Space Station
The International Space Station is a man-made object that orbits the Earth at an altitude of about 400 km. It serves as a laboratory for scientific experiments in many fields.