Topic/topic: overview of key vocabulary, bodily and chemical adjustments purpose: physical and chemical modifications are all round us. College students want to recognise this records for his or her unit assessment and for destiny grade degree technological know-how work, however one of the dreams of technological know-how education is to higher recognize the arena round us. commonplace middle kingdom and nc important requirements: 5.P.2 recognize the interactions of rely and strength and the modifications that arise. 5.P.2.3 summarize homes of unique substances, and the brand new fabric(s) formed, to demonstrate that a trade has happened. nextgen technological know-how standards five-ps1-four. Conduct an research to decide whether the mixing of two or extra substances results in new materials.