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Chemistry An introduction to the Periodic Table Objectives: • Recall that the elements in Group 2 are metals, the elements in Group 7 are non-metals, and in Group 4 the elements at the top are non-metals and the elements at the bottom are metals • Describe how elements change from metal to non-metal across a period, and how gaseous elements are at the top right of the table Description The lesson familiarises students with the basic structure of the Periodic Table. Duration (lesson and worksheet together): 50 minutes Topics: Atomic structure; Elements, compounds and mixtures Understanding changes Objectives: • Explain what is meant by the terms ‘physical change’ and ‘chemical change’ • State that a chemical change occurs when gas is burnt in a Bunsen burner (and that the total number of carbon, hydrogen and oxygen atoms is the same in the products as in the reactants) Description Uses a set of animations exploring the difference between physical and chemical changes. Duration (lesson and worksheet together): 50 minutes Topic: Chemical reactions Making salts Objectives: • Name salts, and complete word and symbol equations for making salts • Recognise that there is a relationship between the name of the ‘acid bit’ of a salt and the parent acid • Identify a general pattern that fits metal oxides and hydroxides Description Uses an interactive model exploring methods for producing salts, to reveal common patterns in the reactions. Duration (lesson and worksheet together): 50 minutes Topic: Chemical reactions Teacher’s Guide: 11–16 Chemistry 2–5
Chemistry The Earth and its atmosphere Objectives: • Explain the processes which contributed to the formation of the modern day atmosphere • Describe the layered structure of the Earth • Explain how the rock cycle leads to the formation of sedimentary, igneous and metamorphic rocks Description Uses interactive animations to show the evolution of Earth and atmosphere from formation to 4500 million years ago, the Earth’s layered structure, how rock is recycled in the crust, and the formation of the three major rock types. Duration (lesson and worksheet together): This lesson lends itself to presentation as two or three different lessons of 20-30 minutes each. Topic: Earth and its atmosphere Bonding and formulas Objectives: • State that different atoms can make different numbers of covalent bonds, and name compounds with covalent bonds • Describe the relationship between the group in the Periodic Table and the number of bonds • State that for simple negative ions the charge is the same as the number of covalent bonds Description Uses a flexible model for exploring a range of covalent and ionic compounds, and for displaying their names and formulas. Duration (lesson and worksheet together): 50 minutes Topic: Formulas and equations Balancing equations Objectives: • Identify the reactants and products in a chemical reaction • State that atoms are rearranged during a chemical reaction • State that no atoms are created or destroyed during a chemical reaction • Write and balance symbol equations for reactions Description Uses an interactive model to demonstrate why chemical equations are balanced, and how to balance them. Duration (lesson and worksheet together): 50 minutes Topic: Formulas and equations 2–6 Multimedia Science School
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Science Content Guide - RM.com

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