Oxford University (OX)

Biodiversity a measure of the range of different species of organisms living in an area Community the relationships between all the living species in an area Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Ecosystem the relationship between the living species and their environment Environment the surroundings in which an organism lives Habitat the place where an organism lives and bree...

What does NGO stand for? non-governmental organization NGO - relief in natural disasters oxfam Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:04 / 0:15 Full screen Brainpower Read More NGO - poverty save the children NGO - health doctors without borders NGO - welfare and social security wateraid NGO - animal rights WWF NGO - the environment greenpeace NGO - war and conflict UNICEF NGO - homelessn...

synovial capsule encloses joint - lined with synovial membrane - keeps synovial fluid around the joint synovial membrane lines synovial capsule - secretes synovial fluid 0:37 / 0:54 6 Ways to Show Appreciation for Your Child's Teacher synovial fluid lubricates joint - nourishes cartilage - acts as a shock absorber bursae small, sac-like structure filled with fluid - acts like cushions to alleviate friction between bones, tendons and muscles. cartilage cove...

Macro economics The study of the performance and behaviour of an economy as a whole. mixed economy An economic system that allows both the government and the private sector to allocate resources, e.g. the UK has a mixed economy. Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Business Cycle A measure of the regular fluctuations in the level of economic activity. It is made up of the following elements...

waves: they are produced as a result of vibrations and do not transfer energy longitudinal waves: the particles vibrate parallel to the direction the wave is travelling e.g sound Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:04 / 0:15 Full screen Brainpower Read More transverse waves: particles vibrate 90 degrees to the direction of wave travel e.g water and electromagnetic longitudinal frequency: the number of vibrations made by a p...

Lattice enthalpy The enthalpy change when one mole of an ionic compound is converted to gaseous ions. Enthalpy of atomisation The enthalpy change when one mole of gaseous atoms is formed from the element in its standard state Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More First electron affinity The enthalpy change when one mole of gaseous atoms is converted into gaseous ions with a single negative c...

Empirical formula A formula which shows the simplest whole number ratio of atoms of each element in a compound Molecular formula A formula which shows the actual number of atoms of each element in a molecule Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Molar Gas Volume The volume of one mole of gas under specified conditions of temperature and pressure e.g 293K and 1 atmosphere pressure Homo...

Business Enterprise Any operation established to produce or supply goods/services desired by consumers generally with a view to making profit. Factors of Production The inputs of land, labour, capital and enterprise required to produce or supply goods/services. Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Entrepreneur Someone who starts and runs a business and has the responsibility of the risks in...

Activation energy The activation energy required for a reaction is reduced by enzymes. Active site The area of the enzyme where the substrate fits. Can be denatured by pH and heat. Complementary to the substrate. Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Active transport Movement of molecules against the concentration gradient (low to high) and requires energy. Adenine One of the 4 bases...

What are the 4 halogens we study? Fluorine, chlorine, bromine and iodine Colour and state of fluorine at r.t.p Yellow gas Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:03 / 0:15 Full screen Brainpower Read More Colour and state of chlorine at r.t.p Yellow-green gas Colour and state of bromine at r.t.p Red-brown liquid, with a red-brown vapour forming when heated Colour and state of iodine at r.t.p Grey-black solid, with a pur...