高含金量和认可度的STEM竞赛盘点，适合9-12年级高中生
STEM是当今最热的词汇，它囊括了当今社会发展最快的行业。但STEM领域的竞争也是日益激烈，美国顶尖大学STEM专业的录取率再次创下新低。 如何进入名校攻读STEM专业，在申请时向招生官证明自己的硬实力？参加STEM学...
IB DP Biology: SL复习笔记2.2.2 Fatty Acids
Fatty Acids: Types Triglycerides are a form of lipid, made up of one molecule of glycerol with three fatty acids attached to it These fatty acids have long hydrocarbon ‘tails’ Fatty acids occur in ...
IB DP Biology: SL复习笔记2.2.1 Carbohydrates
Formation of Sugars Monosaccharides can join together via condensation reactions to form disaccharides A condensation reaction is one in which two molecules join together via the formation of a new...
IB DP Biology: SL复习笔记2.1.4 Water
Properties of Water NOS: Use theories to explain natural phenomena; the theory that hydrogen bonds form between water molecules explains the properties of water When scientists observe natural phen...
IB DP Biology: SL复习笔记2.1.3 Hydrogen Bonds
Hydrogen Bonds Hydrogen bonding plays an important role between many biological molecules Some key functions include: Dissolving of solutes in water The cohesion and adhesion of water molecules The...
IB DP Biology: SL复习笔记2.1.2 Metabolism
Metabolism Metabolism is a catch-all term used to describe all the chemical reactions that take place within cells and organisms Metabolism can be thought of as the chemical reactions of life The m...
IB DP Biology: SL复习笔记2.1.1 Molecules
Molecular Biology The substances of life There are 118 elements in the Periodic Table Only the first 92 elements occur in Nature ; the rest are artificially-synthesised in laboratories and are very...
IB DP Biology: SL复习笔记1.4.4 Skills: Cell Division
Mitotic Phases: Identification Cells undergoing different stages of the cell cycle can be identified using photomicrographs taken from microscope slides Cells undergoing certain stages of the cell ...
IB DP Biology: SL复习笔记1.4.3 Cancer
Tumour Formation Cancers demonstrate how important it is that cell division is precisely controlled, as cancers arise due to uncontrolled mitosis Cancerous cells divide repeatedly and uncontrollabl...
2022 DC全球钻石商业挑战赛9月即将开始报名，快来找你的队友吧！
Diamond Challenge全球钻石商业挑战赛，是由美国特拉华大学主办的面向高中生的国际顶尖创业赛事。不同于其他学术活动，钻石挑战赛专注于释放学生的创造力，鼓励多样新颖的想法，培养学生的策划能力、沟通能力、决...
IB DP Biology: SL复习笔记1.4.2 Phases of Mitosis
Phases of Mitosis Mitosis is the process of nuclear division by which two genetically identical daughter nuclei are produced that are also genetically identical to the parent cell nucleus (they hav...
IB DP Biology: SL复习笔记1.4.1 Cell Cycle
Interphase Mitosis is part of a precisely controlled process known as the cell cycle The cell cycle is the regulated sequence of events that occurs between one cell division and the next The cell c...
