1. Compounds and Mixtures (8G: Lesson 1)

2. Lesson Objectives Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae.

3. What do you know already?

4. 1 Sort the following: Element Compound Mixture Silver Magnesium Chloride Air A combination of two or more substances not chemically joined together An example of an element Made up of one type of atom only An example of a mixture Made up of two or more elements chemically joined together. An example of an compound

5. 2 Name the following: Water Oxygen Hydrogen Carbon Dioxide Nitrogen Argon

6. Element Compound 3 Sort the following: Water Oxygen Hydrogen Carbon Dioxide Nitrogen Argon MethaneSubstance 1Sulfuric acid

7. Key Definitions Keywords: Atom, Element, Compound, Molecule, Mixture, Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae. Key WordDefinition AtomThe smallest part of an element. ElementMade of ONLY one type of atom. CompoundMade of 2 or more elements chemically combined together. MoleculeTwo or more atoms joined together. MixtureTwo or more different kinds of particles that are not chemically joined to each other.

8. Video: Elements and Compounds (9.10) Keywords: Atom, Element, Compound, Molecule, Mixture, Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae.

9. Using the Periodic Table Keywords: Atom, Element, Compound, Molecule, Mixture, Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae. Chemical NameElement/Compound/ Mixture Element(s) present Chemical Formula HydrogenElementHH2H2 Lead Magnesium Sodium Helium Oxygen Carbon Water Carbon Dioxide

10. Using the Periodic Table Keywords: Atom, Element, Compound, Molecule, Mixture, Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae. Chemical NameElement/Compound/ Mixture Element(s) present Chemical Formula HydrogenElementHH2H2 LeadElementPb MagnesiumElementMg SodiumElementNa HeliumElementHe OxygenElementOO2O2 CarbonElementCC WaterCompound2H and OH2OH2O Carbon DioxideCompoundC and 2OCO 2

11. Answers Mixture Made up of 2+ elements chemically combined. CompoundMade of one type of atom only. Element Given the chemical symbol ‘Pb’ Lead The smallest part of an atom. Atom Given the chemical Formula CO 2 Carbon Dioxide Another name for burning Combust ion Formed when a substance has oxygen in it. Oxide Seawater is an example of this.

12. Are you now able to…. I still feel unsure. I need some more help to understand. I feel ok. I need to do some more work to check my understanding. I am happy and feel I understand and can explain the main points. Keywords: Atom, Element, Compound, Molecule, Mixture, Oxide, Symbol, Chemical Formula, Must: To be able to recall examples of elements and compounds. Should: To be able to describe the difference between elements, compounds and mixtures. Could: To be able to write simple chemical formulae.