EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：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 復習筆記：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 復習筆記：1.1.2 Diffusion & Dilution iffusion & Dilution Diffusion and dilution experiments support a theory that all matter (solids, liquids ...
Edexcel IGCSE Chemistry: Double Science 復習筆記：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...
The Effects of Climate Change Greenhouse gases?absorb infrared radiation emitted by the earth, causing the atmosphere to warm The?higher the concentration?of greenhouse gases in the atmosphere, the...
Models of Future Climate Change It is possible to use existing data relating to global warming to?make predictions about global temperatures?in the future Using data in this way is known as?extrapo...
The Greenhouse Effect When?radiation from the sun?hits the earth, it is?radiated back?from the earth's surface A?greenhouse gas?is a gas that?absorbs?this re-radiated radiation,?trapping it in the ...
AMC是American Mathematics Competition（美國數學學術活動）的縮寫，是由美國數學協會于1950年正式成立的。它的試題由簡單到難，一點點讓學生感覺到具有挑戰性，可以讓所有喜歡數學或者是熱愛數學的學生都能參與...
Evidence for the Causes of Climate Change Scientists have long?hypothesised?that Climate change in the form of?global warming is currently taking place Human activities?that increase the concentrat...
Introduction to Climate Change The term?climate?refers to the?weather conditions?in a region over a?long period of time?i.e. several decades When the weather conditions in a region change significa...
AMC全稱American Mathematics Competitions，原名“美國數學學術活動”，根據教育部要求，現改名為“美國數學思維挑戰活動”。由美國數學協會MAA（Mathematics Association of America）于1950年成立，試題由哈佛、麻...
