CIE IGCSE Biology: 复习笔记：1.1.5 Features of Organisms: Extended The Five Kingdoms: Extended The first division of living things in the classification system is to put them into one of?five kingd...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.1 Alkenes The Alkenes All alkenes contain a?double carbon bond, which is shown as two lines between two of the carbon atoms i.e. C=C All...
CIE IGCSE Biology: 复习笔记：1.1.4 Features of Organisms The Five Kingdoms The first division of living things in the classification system is to put them into one of?five kingdoms. They are: Anima...
CIE IGCSE Biology: 复习笔记：1.1.2 Concept & Uses of Classification Systems How Organisms are Classified There are millions of species of organisms on Earth A species is defined as a gro...
CIE IGCSE Biology: 复习笔记：1.1.1 Characteristics of Living Organisms Characteristics of Living Organisms Movement: an action by an organism or part of an organism causing a change of posit...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.5.2 Disposal of Addition Polymers Disposal of Addition Polymers Addition polymers are formed by the joining up of many small molecules wit...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.5.1 Addition Polymers Monomers Polymers are large molecules of?high relative molecular mass?and are made by linking together large numbers...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.2 Bromine & Alkenes Bromine & Alkenes Alkenes are a homologous series of hydrocarbon compounds with at least one?double bond?bet...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.3.2 Halogens & Alkanes Halogens & Alkanes In a substitution reaction, one atom is swapped with another atom Alkanes undergo a subs...
