Science

Protists are simple microscopic unicellular microorganisms. They are made up of only one cell but the simple cell structure is highly organized and consists of …

Active transport is the movement of molecules from a lower concentration to a higher concentration. This process is vital for living organisms and is important …

The oil and coal that we heavily depend on today took some time to develop. In fact, they started forming in the Carboniferous Period or …

The ivy plant is native to northern Africa, the Canary Islands and Azores, western Europe, the Himalayas, China, Korea, and Japan. They are categorized based on …

Diffusion is the physical process of the natural movement of ions or molecules. It occurs in both liquids and gasses and is important to all …

According to archaeologists, man has been doing basic mining as early as 3000 B.C. The first two metals ever discovered are copper and gold with the …

Synovial joints are the most common and most mobile joints in mammals. Their freely moveable characteristic means they enable mammals to make large movements and …

Neurons are nerve cells that make up our nervous system. Unlike other cells, neurons are highly specialized to transmit information throughout our bodies. We have …

A mathematical function has a discontinuity if it has a value or point that is undefined or discontinuous. Discontinuity is of utmost importance in mathematics. …

Diseases caused by air pollution have led to 600,000 deaths per year among children under age five and one out of eight deaths per year …

Terrain comes from the word “terra” which means Earth and refers to the study of the Earth’s horizontal and vertical surfaces. By identifying the different …

Capillaries are the smallest types of blood vessels. They have a diameter of around five to 10 micrometers and the thickness of the endothelial lining is …

Magma or hot molten rock beneath the earth’s surface has an average temperature of around 1300 degrees F to 2400 degrees F or 700 degrees C …

Passive transport is the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy. There …

Natural rubber comes from the tree Hevea brasiliensis which is native to South America. Explorer Henry Wickham brought seeds of this rubber tree which were …

Marble is a metamorphic rock that usually originates as limestone or dolomite. It’s typically found among the oldest part of the Earth’s crust and among other …

There are a total of 117 million lakes on the planet with about 90 million of them spanning 0.5 to 2.5 acres (0.2 to 1 hectare) …

A river is a natural stream of water that flows to another water body such as a lake, ocean or another river. Rivers can be …