IB DP Biology: HL复习笔记1.1.6 Skills: Cell Theory
Practical 1: Using a Microscope Many biological structures are too small to be seen by the naked eye Optical (light) microscopes are an invaluable tool for scientists as they allow for tissues, cel...
Edexcel IGCSE Geography 复习笔记 1.3.1 Water Uses, Demand & Supply
Edexcel IGCSE Geography 复习笔记 1.3.1 Water Uses, Demand & Supply Water Uses Only 2.5% of the water on Earth is freshwater 68.7% of freshwater is stored in glaciers and ice sheets and 30% is g...
Edexcel IGCSE Geography 复习笔记 1.2.3 River Landscapes
Edexcel IGCSE Geography 复习笔记 1.2.3 River Landscapes Upland Landforms River landscape characteristics The changes in river channel characteristics, lead to changes in the river landscape The upl...
Edexcel IGCSE Geography 复习笔记 1.2.2 Changes in River Characteristics
Edexcel IGCSE Geography 复习笔记 1.2.2 Changes in River Characteristics Changes in River Characteristics River characteristics All rivers have a long and cross profiles Each river's long and cross ...
Edexcel IGCSE Geography 复习笔记 1.2.1 Fluvial Processes
Edexcel IGCSE Geography 复习笔记 1.2.1 Fluvial Processes Weathering & Mass Movement River valley processes Both fluvial and landscape processes shape the river and surrounding land in the drain...
IB DP Biology: HL复习笔记1.1.5 Stem Cells
Stem Cells A stem cell is a cell that can divide (by mitosis) an unlimited number of times Each new cell (produced when a stem cell divides) has the potential to remain a stem cell or to develop in...
Edexcel IGCSE Geography 复习笔记 1.1.3 River Regime & Hydrographs
Edexcel IGCSE Geography 复习笔记 1.1.3 River Regime & Hydrographs River Regimes & Storm Hydrographs River regimes The discharge of a river changes over time The river regime is a record of ...
Edexcel IGCSE Geography 复习笔记 1.1.2 The Drainage Basin
Edexcel IGCSE Geography 复习笔记 1.1.2 The Drainage Basin The Drainage Basin A drainage basin is an open system Every drainage basin is unique and is different in shape and size, with different roc...
Edexcel IGCSE Geography 复习笔记 1.1.1 The Hydrological Cycle
Edexcel IGCSE Geography 复习笔记 1.1.1 The Hydrological Cycle Characteristics of the Water Cycle The hydrological cycle is a closed system Water is constantly recycled through the system Within the...
