Science at key stage 3 (Year 8)

Unit 8E: Atoms and elements

Objectives

Section 1: How many different materials are there?
Children should learn:

that there is a huge variety of materials
that there is a small number of elements from which all other materials are made

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Section 2: What are elements made from?
Children should learn:

to distinguish between elements and other materials
that each element is made up of one sort of particle and these are called atoms
that models can be used to illustrate phenomena that cannot be observed

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Section 3: What are elements like?
Children should learn:

to undertake independent research using knowledge of how texts and databases are organised and of appropriate reading strategies
that elements vary in their appearance and state

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Section 4: Checking progress
Children should learn:

to distinguish between elements and other materials
that each element is made up of atoms of one kind

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Section 5: How do we get all the other materials?
Children should learn:

that new materials are formed when atoms join together in different ways
that compounds are formed when atoms combine
that atoms can combine to form molecules

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Section 6: a. How can we represent the changes when new materials are made?
Children should learn:

that atoms of elements combine to form molecules of compounds
that in chemical changes new substances are formed
to represent and explain chemical reactions by word equations, models or diagrams

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Section 7: b. How can we represent the changes when new materials are made?
Children should learn:

to predict what might be formed from a chemical reaction between elements
to heat metals in air safely

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Section 8: Reviewing work
Children should learn:

to distinguish between elements and non-elements
to identify the scientific knowledge relevant to a particular question
to make sure they are working safely
to explain how their work provides evidence about a question
to discuss and question what they are learning and how it is relevant when using different variables

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Sections in this unit

This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.


	1. How many different materials are there?
	2. What are elements made from?
	3. What are elements like?
	4. Checking progress
	5. How do we get all the other materials?
	6. a. How can we represent the changes when new materials are made?
	7. b. How can we represent the changes when new materials are made?
	8. Reviewing work