EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.2.5 Practical: Investigating Paper Chromatography Practical: Investigate Paper Chromatography Using Inks & Food Colourings Objective: Investi...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.2.4 Interpreting Chromatograms Identifying Mixtures Pure substances will produce only?one spot?on the chromatogram If two or more substanc...
Polymerase Chain Reaction Every person, with the exception of identical twins,?has a?unique DNA sequence?which can be used to create a?DNA profile This is very useful in forensic science as it prov...
Micro-organisms: Decomposition & Nutrient Recycling Dead plants and animals are?broken down?by microorganisms such as?bacteria?and?fungi These organisms are known as decomposers These decompose...
Determining the Time of Death Forensics?is the use of science in the?investigation of criminal activities It involves the?collection and analysis of evidence?from a potential crime scene e.g. the s...
IG化學作為國際課程的基礎課程之一，目的是為了幫助國際學生在科學學習方面奠定一定的基礎。現如今也是最好的銜接美國，英高，加高，以及國內國際學校的化學課程。那么IG化學課程有哪些知識點？（內含2022真題解...
Evidence of Evolution & the Scientific Community The theory of?evolution?by?natural selection?is now?widely accepted?by the scientific community?due to its being supported by a great deal of?ev...
Speciation The?theory of evolution?states that?species?do not stay the same, but change over time; this can lead to the process of?speciation Speciation can be defined as?the development of new spe...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.2 3 Separation Techniques 、 Simple Distillation This is used to separate a liquid and?soluble solid?from a solution (e.g., water from a s...
