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Sun

sun (Science: botany) See sunn. 1. The luminous orb, the light of which constitutes day, and its absence night; the central... Read More

Definition

Sunlight

Definition noun The electromagnetic radiation of the sun that reaches the earth, particularly infrared, visible light, and... Read More

Definition

Bears

Bears Definition Bears are mammals belonging to the family Ursidae. They typically have massive bodies, coarse heavy fur,... Read More

Definition

Parallax

parallax 1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or... Read More

Definition

Planet

planet 1. (Science: astronomy) A celestial body which revolves about the sun in an orbit of a moderate degree of... Read More

Definition

Solstice

solstice 1. A stopping or standing still of the sun. 2. (Science: astronomy) The point in the ecliptic at which the sun is... Read More

Article

The Origins of Life

Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales... Read More

Definition

Ecliptic

Ecliptic 1. (Science: astronomy) a great circle of the celestial sphere, making an angle with the equinoctial of about 23... Read More

Definition

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Definition

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Definition

Heliotropism

Definition noun Growth or movement of a cell or an organism in response to the direction of the sun Supplement In general,... Read More

Definition

Spot

spot 1. A mark on a substance or body made by foreign matter; a blot; a place discoloured. Out, damned spot! Out, I say!... Read More

Definition

Burn

Burn 1. A hurt, injury, or effect caused by fire or excessive or intense heat. 2. The operation or result of burning or... Read More

Definition

Sphere

Sphere 1. (Science: geometry) A body or space contained under a single surface, which in every part is equally distant from... Read More

Definition

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Definition

Reflection

reflection 1. The act of reflecting, or turning or sending back, or the state of being reflected. Specifically: The return... Read More

Definition

Opposition

opposition 1. The act of opposing; an attempt to check, restrain, or defeat; resistance. The counterpoise of so great an... Read More

Definition

Eclipse

Eclipse 1. (Science: astronomy) An interception or obscuration of the light of the sun, moon, or other luminous body, by the... Read More

Article

Abiotic and Biotic Factors – Quiz

[mlw_quizmaster... Read More

Article

Origins of Life on Earth – Quiz

[mlw_quizmaster... Read More

Definition

Tropic

tropic 1. (Science: suffix) A turning toward, having an affinity for. Compare: -trophic. Origin: G. Trope, a turning 2.... Read More

Article

Biodiesel: Growing A New Energy Economy

Biodiesel: Growing A New Energy Economy ... Read More

Definition

Equator

Equator 1. (Science: geography) The imaginary great circle on the earth's surface, everywhere equally distant from the two... Read More

Definition

Biotic factor

Biotic Factor Definition Biotic factors (also known as biotic components) are the living component in an ecosystem. The... Read More

Definition

Uranus

uranus 1. The son or husband of Gaia (earth), and father of Chronos (time) and the titans. 2. (Science: astronomy) One of... Read More

Definition

Mercury

mercury 1. (Science: astronomy) The first planet in order from the sun. It has no known natural satellites. It is one of the... Read More

Definition

Blaze

Blaze 1. A stream of gas or vapor emitting light and heat in the process of combustion; a bright flame. To heaven the blaze... Read More

Definition

Rainbow

rainbow A bow or arch exhibiting, in concentric bands, the several colours of the spectrum, and formed in the part of the... Read More

Definition

Heaven

Heaven 1. The expanse of space surrounding the earth; especially, that which seems to be over the earth like a great arch or... Read More

Definition

Venus

venus 1. The goddess of beauty and love, that is, beauty or love deified. 2. (Science: anatomy) One of the planets, the... Read More

Definition

Amelanism

Definition noun A condition characterized by the complete lack of pigments (or melanin) Supplement Melanin is a compound... Read More

Definition

Ellipse

Ellipse 1. (Science: geometry) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique... Read More

Definition

Radiant

radiant 1. Emitting or proceeding as from a center; rays; radiating; radiate. 2. Especially, emitting or darting rays of... Read More

Article

How Everything Works: Making Physics Out of the Ordinary

How Everything Works: Making Physics Out of the Ordinary ... Read More

Definition

Season

season 1. One of the divisions of the year, marked by alternations in the length of day and night, or by distinct conditions... Read More

Definition

Eukaryotic cells

Eukaryotic Cells Definition What is a eukaryotic cell? The term “cell” is a common word in biology, anatomy, and... Read More

Definition

Pyruvate

Pyruvate Definition Pyruvates have been often recognized as one of the most important molecules that are frequently... Read More

Definition

Radiate

radiate 1. To emit rays; to be radiant; to shine. Virtues shine more clear In them kings, and radiant like the sun at noon.... Read More

Definition

Pumpkin

pumpkin (Science: botany) A well-known trailing plant (Cucurbita pepo) and its fruit, used for cooking and for feeding... Read More

Article

Essential Biology (3rd Edition) by NA Campbell and others

Essential Biology (3rd Edition) ... Read More

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