formation of one or more new Write a word equation for the Compare the properties of the substances, and often Write word equations for reaction. reactants and products of the involve a detectable energy the reactions in this reaction. change. specification. Draw a diagram to show how the atoms are chemically Compounds contain two or formulae and balanced bonded in the reaction. more elements chemically chemical equations for the combined in fixed proportions reactions in this Write the symbol formula for the and can be represented by specification. reaction. formulae using the symbols from Students can practice converting of the atoms which they symbol equations into word were formed. Compounds equations. can only be separated into elements by chemical reactions. Chemical reactions can be represented by word equations or equations using symbols and formulae. 5.1.1.2 A mixture consists of two or Describe, explain and give 1 Define a mixture. Demonstrate various Video clip: more elements or examples of the specified Describe how a magnet can be separation techniques from compounds not chemically processes of separation. used to separate magnetic KS3 including distillation, combined together. The material from non-magnetic. filtration, and evaporation. chemical properties of each Suggest suitable separation substance in the mixture are and purification techniques Describe the processes of Students can separate out unchanged. for mixtures when given distillation, filtration, various inks using appropriate information. crystallisation and how they chromatography and relate Mixtures can be separated work to separate mixtures. this to the use of by physical processes such chromatography in forensics. as filtration, crystallisation, Give students a range of simple distillation, fractional different mixtures and ask them
formation of one or more new substances, and often involve a detectable energy change. Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which they were formed. Compounds can only be separated into elements by chemical reactions. Chemical reactions can be represented by word equations or equations using symbols and formulae. Write word equations for the reactions in this specification. formulae and balanced chemical equations for the reactions in this specification. Write a word equation for the reaction. Draw a diagram to show how the atoms are chemically bonded in the reaction. Write the symbol formula for the reaction. Students can practice converting symbol equations into word equations. Compare the properties of the reactants and products of the reaction. 5.1.1.2 A mixture consists of two or more elements or compounds not chemically combined together. The chemical properties of each substance in the mixture are unchanged. Mixtures can be separated by physical processes such as filtration, crystallisation, simple distillation, fractional Describe, explain and give examples of the specified processes of separation. Suggest suitable separation and purification techniques for mixtures when given appropriate information. 1 Define a mixture. Describe how a magnet can be used to separate magnetic material from non-magnetic. Describe the processes of distillation, filtration, crystallisation and how they work to separate mixtures. Give students a range of different mixtures and ask them Demonstrate various separation techniques from KS3 including distillation, filtration, and evaporation. Students can separate out various inks using chromatography and relate this to the use of chromatography in forensics. Video clip: