Shapes of ions and molecules lesson for year 12 or year 13 (AS level or A level). LOs: To state the basic features of a molecule that determine its shape. To describe different molecular structures. To predict the shapes of simple molecules and ions with up to six electron pairs surrounding the central atom. 1. Do Now: Draw the Lewis structures for water, methane and ammonia. How many pairs of electrons surround the central atom in each case? 2. Exposition: VSEPR theory and structures with 4 areas of electron density 3. Mini-pleanry: Determine the shape of molecules that have 4 areas of electron density 4. Exposition: Shapes from 2 or 3 areas of electron density 5. Mini-plenary: Determine the shape of molecules that have 2, 3 or 4 areas of electron density 6. Exposition: Shapes with 5 or 6 areas of electron density 7. Exposition: How lone pairs affect bond angles 8. Independent Task: Practise determining shapes and bond angles of various different ions and molecules 7. Independent Task: Exam style questions on bond angles and molecular shape 8. Plenary: Wrapping it up

A year 12 (AS level) guide to solving Hess cycle questions on enthalpy change of reaction, using either enthalpy change of combustion or enthalpy change of formation values. Includes detailed instructions and one worked problem. Could also be used for year 13 (A level).

A year 12 (AS level) resource for solving bond enthalpy questions. Could also be used for GCSE or year 13 (A level). This contains a numbered guide of how to solve these types of questions and includes 2 worked examples, following the guide.

A worksheet on specialised cells, suitable for KS3 (year 7 or 8) or above. Students are asked to match diagrams of specialised cells with their names, separate specialised plant cells from animal cells and match specialised cells with their adaptations. Specialised cells covered include root hair cells, palisade cells, sperm cells, red blood cells, ciliated epithelial cells and nerve cells. Worksheet and answers included in .pdf and .docx (same worksheet). For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

Computers and technology English vocabulary worksheets. Intended for beginner EfL learners. .pdf and .docx files included (each contain the same 2 worksheets). PowerPoint includes vocabulary list covered (as below) and visual aids. Worksheets test students on understanding and usage of the vocabulary learnt. LEVEL 1 Computer Email address Mobile phone Website Facebook Text message Download Letter Video LEVEL 2 Calculator Gadget Envelope Stamp Robot Agree Disagree Opinion Battery Laptop Smartphone For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

A year 7 or 8 lesson on metal alloys. PowerPoint and worksheets included (at the back of the PowerPoint). LOs: To state what is meant by an alloy. To describe the uses of some alloys. To explain why an alloy can be stronger than a pure metal. 1. Do Now: Can you remember the names of these 4 metals? Which would you use to build a bridge? Why? 2. Exposition: Video (BBC) or exposition on alloys. Ask students to define what an alloy is (could be done via Think, Pair, Share). 3. Student Activity: Worksheet answering questions on alloys video (higher and scaffolded version included) 4. Student Activity: 'Information hunt' on what various alloys contain and what their applications are 5. Exposition: Why are alloys strong? Linking strength to microscopic structure 6. Plenary: Exam style question on why alloys are strong (keywords may be provided to help) For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

A colourful worksheet for year 7 or 8 pupils on drawing particle diagrams. Includes tips on how to draw particle diagrams, avoiding some common misconceptions (eg. particles not touching in a liquid) and a 7 question worksheet to check understanding. The worksheet is uploaded both as PowerPoint (editable) and PDF files (same worksheet). For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

A level or IB DP Chemistry worksheet on electrochemical cells. A table compares voltaic / galvanic and electrolytic cells, before students are asked to answer a number of questions on the differences. .pdf and .docx files included (same worksheet). For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce

Year 7 or 8 lesson on understanding how sound travels through materials. LOs: To recognise how the speed of sound changes in different substances. To use the particle model to explain why sound cannot travel through a vacuum. To use the particle model to explain why there are differences when sound travels through solids, liquids and gases. Activities: 1. Do Now: Keyword match-up with definition 2. Student Activity: Fill in the gap sheet on how sound travels through different materials 3. Student Activity: Drawing a bar chart of the speed of sound through different materials 4. Mini-plenary: Drawing conclusions from the bar chart 5. Student Activity: Discussing the film poster tagline "In space no one can hear you scream" and adding scientific information 6. Independent Task: Drawing particle diagrams for solid, liquid and gas and using them to explain why sounds travels fastest through solids and slowest through gases 7. Plenary: 3,2,1 For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

Year 7 or 8 Do Now on elements, compounds and the periodic table. Students have to identify metals and non-metals using the periodic table, then have to determine the number of atoms in compounds, eg. 2 x hydrogen and 1 x oxygen in water.

Year 7 or 8 worksheet on metals and non-metals. A quick check for understanding on the properties of metals and non-metals

Collision theory / kinetic theory crossword Do Now Students are required to 'fill in the gaps' to complete the crossword. The purpose is to check their understanding about the collision theory and how scientists can increase rates of reaction. This resource tests students on 7 words which are present at the bottom of the worksheet in a 'word bank'. To differentiate this resource for more able students, you could remove the word bank. The 7 solutions are: activation, collide, energy, kinetic, orientation, speed, temperature

KS3 Assessment on Particles. This test is designed to be a formative assessment, with students able to demonstrate their knowledge and understanding of the particle theory of matter both in short answer and extended open answer questions. The test does not include a mark scheme, but the teacher should be able to form a judgment on the current level of students from their responses. This test covers the following topics: Solids, liquids, gases Particle diagrams Changes of state Properties of solids, liquids and gases Brownian motion Melting and boiling points Heating and cooling curves For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

Density 5 question MCQ to check for understanding

Do Now comprehension on using electromagnets

Year 7 or 8 lesson on the Particle Theory - Solids, Liquids and Gases. PowerPoint and worksheets included (at the back of the PowerPoint). LOs: To identify solids, liquids and gases. To describe the 3 states and their properties. To explain changes of state using ideas about the particle model of matter. Activities: 1. Do Now: Separate the different substances into solids, liquids and gases. Are there any you are unsure about? 2. Exposition: The particle theory of solids, liquids and gases 3. Student Activity: Explaining properties using the particle theory 4. Class Activity: Watch interactive content on particles (could be replaced by practical demonstrations in the laboratory) 5. Student Activity: Complete the information table about the particles in solids, liquids and gases (and green pen check) 6. Mini-plenary: Particles and states MCQs 7. Independent Task: Exam style questions on the particle theory (then self assessment and reflection) 8. Plenary: Learning triangle For more resources check out my shop: https://www.tes.com/teaching-resources/shop/alexpce If you liked this resource, please write a review! :)

Permanent and temporary magnets comprehension

2 x Energy keyword match-up Do Nows. Each activity involves students matching keywords to their definitions and then answering questions or correcting a paragraph. 1. The first tests students on types of energy, with keywords such as 'kinetic energy', 'thermal energy' and 'light energy' and then asks questions on useful and wasted energy transfers. 2. The second tests students on energy transfer process, with keywords such as 'conduction', 'convection', 'radiation' and 'vacuum' and asks students to correct spelling and grammar mistakes in a paragraph.