STE

• Matter: physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy
• Mixture: a substance made by mixing other substances together
• Helium: the chemical element of atomic number 2, an inert gas which is the lightest member of the noble gas series.
• Electron: a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
• Acid: a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind.
• Skeletal: relating to or functioning as a skeleton
• Respiratory system is the organs that are involved in the exchange of gases between the body and the environment
• Transcend: be or go beyond the range or limits of (a field of activity or conceptual sphere)
• vertebrate: an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.
• Crustacean: an arthropod of the large, mainly aquatic group Crustacea, such as a crab, lobster, shrimp, or barnacle.
• Reptile: a vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land.
• Carnivore: an animal that feeds on other animals
• Herbivore: an animal that feeds on plants
• pollen: a fine powdery substance, typically yellow, consisting of microscopic grains discharged from the male part of a flower or from a male cone. Each grain contains a male gamete that can fertilize the female ovule, to which pollen is transported by the wind, insects, or other animals.
• Asexual reproduction is when one parent produces offspring with the same genetic makeup as itself
• abiotic: physical rather than biological; not derived from living organisms
• Photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product
• Consumer: a person who purchases goods and services for personal use
• Throphic pyramid: A diagram that shows the feeding relationships between organisms in a food chain.
• Mutualism: the doctrine that mutual dependence is necessary to social well-being.
• parasitism: the practice of living as a parasite on or with another animal or organism
• Predation: the preying of one animal on others
• Coral reefs are found in tropical and subtropical waters.
• Mangrove: a tree or shrub which grows in tidal, chiefly tropical, coastal swamps, having numerous tangled roots that grow above ground and form dense thickets.
• Force: strength or energy as an attribute of physical action or movement
• Friction: the resistance that one surface or object encounters when moving over another
• Gravitational: relating to movement towards a centre of gravity
• Balance: an even distribution of weight enabling someone or something to remain upright and steady
• Fluid friction is the friction between two liquids or two fluids and a solid.
• Energy: the strength and vitality required for sustained physical or mental activity
• Potential energy is the energy stored in an object due to its position or shape.
• Kinetic energy is the energy of a moving object, measured in joules (J)
• Mechanical energy is the energy stored in a system due to the movement of objects.
• Eectrical energy is the energy transferred by the flow of electrons through a circuit.
• trachea: a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
• Pharynx: the membrane-lined cavity behind the nose and mouth, connecting them to the oesophagus.
• Atom: the smallest particle of a chemical element that can exist.
• Oesophagus: the part of the alimentary canal which connects the throat to the stomach. In humans and other vertebrates it is a muscular tube lined with mucous membrane.
• Lung: each of the pair of organs situated within the ribcage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed. Lungs are characteristic of vertebrates other than fish, though similar structures are present in some other animal groups.
• Epiglottis: a flap of cartilage behind the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe.