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Video Lesson: Properties of Metals 2: Chemical Properties

Video Lesson

Subject
Chemistry

Description of the video lesson
This lesson shows how metals have low electronegativities, losing outer shell electrons easily.
This loss of electrons is called oxidation.
The oxidation and reactivity of the metals depends on their positions in the periodic table.
The video gives a short review of chemical properties.

Level of English
Basic English vocabulary and grammar supplementing technical vocabulary.

Pre-requisites
Students should have basic English vocabulary and grammar.
They should be familiar with the periodic table and concepts like atomic structure and ionisation.

Language aims
The language uses simple vocabulary, grammar and phrasing.
Technical Keywords include:
Physical
Chemical
Metals
Periodic table
Metals
Bond
Physical properties
Chemical
Electronegativity
Oxidation
Reactive
Examples
reaction
Electronegativities
Cation
Group I
Oxidation
Oxidise
Oxidation number
Transition Metals
Alkaline Earth
Transition
Colour
Variable valencies
Catalysts
Wiring
Pipes
Jewellery
Catalysts
Paint
Medical
Implants
Chemically stable
Unreactive
Alkali Metals – Group I
Alkaline Earth Metals – Group II
Rusts
Oxides
Protective
Layer
Basic
Amphoteric
Multipurpose
Neutralising
Sudocreme
Mineral acids
Salts
Hydrochloric acid
Potassium
Hydrogen
predict
Summary

Subject aims
This gives an overview of the chemical properties of metals, linking them to the positions of the metals in the periodic table.

Students' Difficulties
Students find it difficult to link real-world properties and reactivity to more abstract concepts like atomic structure, electron transfer and ionisation.

Students' Skills
Students should be able to combine basic vocabulary and grammar with technical terminology to describe some of the chemical properties of metals.

Teaching Resources

Title

Type of Product

Language Skills Developed

- Videos

- Interaction
- Listening
- Speaking
- Writing

- Web Site/Portal

- Reading
- Writing

- Interactive activity

- Interaction

- Videos

- Interaction
- Listening
- Speaking
- Writing

- Interactive activity
- Project-based activity

- Interaction
- Reading
- Speaking
- Writing

- Multiple choice questionnaire

- Interaction