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the parts of the earth

When studying the Earth, scientists look at the surface of the Earth and the parts that are above and below it. The atmosphere is a part above the surface while the core is a part below the surface. All of Earth’s parts work together to make life possible. The Earth’s Layers Earth is a terrestrial... read more

how much stronger is carbon fibre than steel

Carbon fibre can be stronger than steel but is far lighter. ... read more

types of plants

There are many kinds, shapes, and sizes of plants on Earth. Among them, algae, mosses, liverworts, ferns, and some trees are non-flowering plants. Among the flowering plants are the grasses and other non-woody, herbaceous plants. Shrubs, some vines, and many kinds of trees are woody plants. ... read more

what is chemistry

Chemistry is the study of substances and the changes that happen to them. Substances are things like food, clothes, and medicine. Chemistry is very important. Plastic bags and shoes with rubber soles would not exist without chemistry. Fuels for cars, airplanes, and rockets would not exist without chem... read more

people who study space

Astronomers are people who study the sky. They make a career out of studying the sky. Amateur astronomers look at planets, stars, and galaxies as a hobby. Astrophysics deals with the behavior and physical properties of all the objects in space. Cosmology studies the origin and structure of the univers... read more