Evolution by Natural Selection Species do not stay the same over time; the species that we see around us today have developed over millions of years This process of species change is known as evolu...
Reducing Climate Change The use of extrapolation to model climate change shows that the consequences of global warming could be extremely serious for humans and global biodiversity if we continue w...
Carbon Cycle & Reduction of Atmospheric Carbon Dioxide The atmospheric carbon dioxide that contributes to the greenhouse effect is part of the global carbon cycle The term carbon cycle refers t...
Climate Change & the Scientific Community It can be said that there is a consensus, i.e. everyone agrees, among the scientific community that Increasing concentrations of greenhouse gases cause...
Practical: Temperature & Development of Organisms Evidence from the natural world indicates that global warming affects the development of living organisms It is possible to investigate the eff...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.2 2 Pure Substance vs Mixture Pure Substance vs Mixture In everyday language we use the word pure to describe when something is natural or...
作为每年吸引60万学生的国际赛事， AMC可谓是当之无愧的“人气王”！ 每逢备赛季， 各种AMC辅导班课都十分火热， 明星导师的班更是“一位难求”！ 今天，小编就来和大家说道说道 Raybet比分 的一位明星数竞导师！ 有多明星呢...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.2.1 Element, Compound or Mixture Classify an Element, Compound or Mixture You need to know the following definitions Classify an El...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.1.3 Solutions Solutions Terminology You need to know all the following terms used when describing solutions: Terminology Abo...
Edexcel IGCSE Chemistry: Double Science 复习笔记：1.1.2 Diffusion & Dilution iffusion & Dilution Diffusion and dilution experiments support a theory that all matter (solids, liquids ...
Edexcel IGCSE Chemistry: Double Science 复习笔记：1.1.1 The Three States of Matter The Three States of Matter The three states of matter are solids, liquids and gases A substance can ...
Temperature & Enzyme Activity Changing air temperature can have a significant impact on the metabolism of living organisms due to the effect of temperature on enzyme activity Enzymes have a spe...
