Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Over time scientists developed the periodic table. Discuss how Dobereiner, Newlands and Mendeleev’s work led to the periodic table as we know it today. 6 marks Key words Groups Periods Atomic number Protons Reactivity Families Atomic mass Hints Discuss Dobereiner and his periodic table Discuss Newlands and his periodic table Explain how the periodic table is arranged today. Discuss Mendeleev’s changes _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Describe the structure of the atom. 6 marks Key words Atom Nucleus Proton Neutron Electron Positive Negative shells Hints Give an overall description of the atom Discuss the central nucleus and the particles found inside it Describe how electrons are arranged Compare charge and mass of all 3 subatomic particles _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Explain why the Group 1 elements all react in a similar way when reacted with water. 6 marks Key words Lithium, Sodium Potassium Caesium Rubudium Electrons Outer shell Alkali Hydroxide Hydrogen water Hints Name the group 1 metals Explain what they all have in common Discuss how the reactivity of the metals alters down the group Describe the reaction of a group 1 metal with water, include an equation _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Explain why the Group 7 elements all react in a similar way when reacted with iron wool. 6 marks Key words Fluorine, Chlorine Bromine Iodine Electrons Outer shell Iron Iron halide Hints Name all the group 7 metals Discuss their reactivity and their electron shell configuration Discuss how the reactivity alters down the group Include an equation for the reaction _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Discuss the uses of compounds of halogens. 6 marks Key words Salt PVC CFC Chemical industry Medical drugs Diet Plastics Reactive unreactive Hints Identify some halogen compounds(3) Discuss their uses Discuss the difference in properties between the halogen and their compounds Discuss their properties. _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Explain why different metal compounds exhibit different colours when heated in a flame. 6 marks Key words Flame Loop Bunsen Electrons Excited Promoted Ground state Emit Wavelength of light spectra Hints Describe the flame test Give some examples of metals and their colours Discuss the application of this test Discuss what happens to the electrons when heated _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Describe how electrons are arranged in an atom, using examples from group 1 and group 7 6 marks Key words Hints _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Explain how salt can be extracted by electrolysis. Discuss the uses of the compounds produced. 6 marks Key words Hints _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

Level 3 - 5to 6 marks Level 2 – 3 to 4 marks Level 1 – 1 to 2 marks Explain the difference between an atom and an ion. Give an example of a positive ion and a negative ion. 6 marks Key words Hints _____________________________________________ QWC - Bubbles Complex answer Extensive key words Logical order Excellent spelling, punctuation and grammar Detailed answer Many key words Clear order Good spelling, punctuation and grammar Simple answer Few key words No order Poor spelling, punctuation and grammar

TIPS FOR ANSWERING LONGER ANSWER QUESTIONS Which command word is used? These tell you what to do. Explain, Describe, Discuss, Compare Check you know what they all mean. Underline or circle key words Explain why the amount of fertiliser used is increasing, and describe the damage that fertilisers can cause to life in rivers and lakes. What key words might be needed to answer the question? Write them down. Make sure you know what they mean. Organise them, either in groups, or in an order. How many marks is it worth? Have you written enough?

More KEY WORDS! Check your answer... Level marks 1.Have you used any of the key words? 2.Have you made some key points? Level 0 0 marks No Yes 1.Have you used lots of the key words? 2.Have you fully described any of the key points? 3.Is there a logical order? Level marks No Yes 1.Have you used all the key words correctly? 2.Have you justified your conclusion using correct science? 3.Is your spelling faultless and your report logical? Level marks No Yes More KEY WORDS? Check the ORDER? Think more SCIENCE! More DETAIL! Check your SPELLING!