EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：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...
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 ...
