Edexcel IGCSE Biology: Double Science 复习笔记 1.2.5 Pathogens
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.5 Pathogens Types of Pathogen A pathogen is any microorganism that causes disease in another organism (e.g. in plants or animals) Many micr...
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.4 Prokaryotic Organisms
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.4 Prokaryotic Organisms Prokaryotes All living organisms can be grouped or ‘classified’ using a classification system that consists of five...
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.3 Eukaryotic Organisms: Fungi & Protoctists
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.3 Eukaryotic Organisms: Fungi & Protoctists Fungi Main features of fungi: They are usually multicellular but some are single-cel...
Edexcel A Level Physics:复习笔记11.7 Nuclear Decay Equations
Nuclear Decay Equations Alpha Decay An alpha particle consists of 2 protons and 2 neutrons (It is emitted from large unstable nuclei) When an alpha particle is emitted from a nucleus: The nuc...
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.2 Eukaryotic Organisms: Animals & Plants
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.2 Eukaryotic Organisms: Animals & Plants Animals The main features of animals: They are multicellular Their cells contain a nucleus wit...
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.1 Eukaryotic Organisms
Edexcel IGCSE Biology: Double Science 复习笔记 1.2.1 Eukaryotic Organisms Common Features of Eukaryotic Organisms: Basics All living organisms can be grouped or 'classified' using a c...
Edexcel A Level Physics:复习笔记11.6 Alpha, Beta & Gamma Radiation
Alpha, Beta & Gamma Particles Some elements have nuclei that are unstable This tends to be when the number of nucleons does not balance In order to become more stable, they emit particle...
Edexcel A Level Physics:复习笔记11.5 Background Radiation
Background Radiation Radiation is a natural phenomenon, with radioactive elements having always existed on Earth and in outer space However, human activity has added to the amount of radiation that...
Edexcel A Level Physics:复习笔记11.4 Nuclear Fusion
Nuclear Fusion Fusion is defined as: Small nuclides that combine together to make larger nuclei, releasing energy Low mass nuclei (such as hydrogen and helium) can undergo fusion and release energy...
2022年11月有哪些国际竞赛可报名参加？
参加学术学术活动其中一大“功利”的作用就是成为申请名校的加持器。但其实，学术活动不止能在学生留学时起到一臂之力，对于学生自身的发展、视野的开拓等各方面的成长，也有很大的帮助！ 2022年已经接近尾声，来看...
Edexcel A Level Physics:复习笔记11.3 Binding Energy per Nucleon Graph
Binding Energy per Nucleon Graph When comparing the stability of different nuclei, it is useful to look at the binding energy per nucleon The binding energy per nucleon is defined as: The binding e...
2022高中数学建模比赛HiMCM和IMMC已开启报名，建模解题思路和常见问题解答
数学建模活动，是从20世纪60、70年代开始进入一些美国大学课堂的。中国的清华、复旦在80年代初将数学建模引入课堂。各种形式的数学建模、数学实验课程和讲座，为培养学生利用数学方法分析、解决实际问题的能力开...
