THE NERVOUS SYSTEM

The nervous system is an organ system made up of a network of cells called neurons. The central nervous system is made up of the…

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THE EYE

Your eyes can be compared to a camera that focuses on what is before you. The eye is a light-sensitive organ that passes on light rays to the…

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THE EAR

Sound is created when something vibrates. Our ears are organs that pick up these sound waves created by vibrations.The ear is made up of the…

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DIGESTIVE SYSTEM

Food is made up of complex molecules that need to be broken down into simpler molecules to be absorbed into the bloodstream. This process is…

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SKELETON SYSTEM

Your skeleton is a protective and supportive structure of bones. Skull bones protect the brain. Rib bones create a cage around your chest which protects…

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RESPIRATION

Respiration is a process by which cells release energy from food through oxidization. Respiration can take place with or without oxygen. With oxygen, it is…

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REPRODUCTION

Asexual reproduction Reproduction in biological terms is the production of offspring from an organism. Every living thing reproduces as a means of continuing its existence….

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OSMOSIS

OSMOSISOsmosis is the flow of one element of a solution through a membrane while the other elements are blocked and not able to pass through the membrane….

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MUSCULAR SYSTEM

How strong are you? Can your legs run fast? Can your arms lift heavy books? Your muscles make your legs run fast. Your muscles let your arms lift heavy…

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MATTER (STATES OF MATTER)

All around you are different things that make up your environment. Some things are solid like rocks and wood, some are liquid and some are…

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HEART (CARDIO VASCULAR SYSTEM)

The human heart is a pear-shaped pump that is responsible for pumping blood throughout your body. The heart is made of muscle. It has four…

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GENES

The Austrian monk Gregor Mendel was the first person to observe patterns of heredity in pea plants. In the 1860s, he conducted research and experiments…

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GASEOUS EXCHANGE

Gaseous exchange describes what happens when we breathe. It is the transfer of gas that takes place namely in our lungs. In aerobic respiration, there…

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FOOD CHAIN

A network of interconnected food chains in an ecosystem is referred to as a food web. In the initial stages of a food web, there…

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FOOD CHAIN

A very small bug can be seen flying above a body of water. One of the fish notices the insect floating on the surface of…

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ENDOCRINE SYSTEM

The endocrine system is comprised of a collection of specialized bodily tissues that are responsible for the production, storage, and secretion of hormones. Hormones are…

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ECOSYSTEMS

An ecosystem is the interdependence of the species that live in a certain geographical area as well as the way in which these organisms interact…

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EARTHQUAKE

There are few things that are more unpredictable and scary than an earthquake. Earthquakes could be described as earth-shaking, causing great damage to buildings as…

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DIFFUSION

DIFFUSIONDiffusion happens around us every day. When someone lights a fire in your community and soon you smell the smoke or when someone who is…

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THE EARTH

The distance between the sun and the earth’s position as the third planet. It seems to be a giant blue marble when viewed from space….

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CONTINENTAL DRIFT

Evidence suggests that the Earth had only single massive continent millions and millions of years ago, according to the beliefs of scientists. Pangaea was the…

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SOLAR SYSTEM

The solar system consists of the sun and all of the planets, as well as their satellites, dwarf planets, and small bodies (asteroids and comets)….

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CELLS: ANIMAL AND PLANT CELLS

All living things are made up of cells. Think of cells like blocks one would use to build a house. Cells join together to make…

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