PURE SUBSTANCES AND MIXTURES

TITLE: Matter : pure substances and mixtures.

 

Subject: Physics and Chemistry

Course: 3º ESO

Language: English

 

INTRODUCTION.

 

I   have never taught my subject in English with AICLE methodology, I have chosen this topic because it´s very practical and intuitive and students always enjoy these  classes.

 

The most important thing about the lesson is learning the difference between  pure substances and mixture and homogeneous and heterogeneous mixture.

 

OBJECTIVES.

 

-To classify  as pure susbtances  and mixtures.

-To recognise different types of mixtures.

-To know about different types of  separating techniques .

- To understand the characteristics of homogeneous and heterogeneous mixtures.

- To describe the most common techniques to separate substances in a mixture.

- To value the use and the importance of chemistry in our society.

- To understand the backwashes of chemistry in living beings and the environment.

 

LANGUAGE CONTENTS.

VOCABULARY

Nouns: Matter , element , compound , mixture , pure substance , solution , solvent , solute , filtration ,decantation ,distillation , solubility .

Verbs: to measure, to adapt, to heat, to avoid, to filter, to float, to compress

Adjectives:  avalaible, absorbent, plastic, elastic, transparent, opaque…

Prepositions: by,of, inside…

 

STRUCTURES

 

·      Routines: communicative skills

What color / size it is ?, what is its natural state ?, what type of substance ?, is it a mixture ?...

It is measured in…

It is fabricated by …

It is made up of…

METHODOLOGY

 

The methodology will be active and participative. Students will work in groups to practice their oral skills, they will listen to videos, write reports and manipulate lab equipment.

 

SESSION 1.

 

·      Brainstorming about the topic.

·      Classification of matter as pure substances or mixtures according to the number of substances.

http://studyjams.scholastic.com/studyjams/jams/science/matter/changes-of-matter.htm

http://www.teachertube.com/video/mixtures-and-solutions-183575

 

·      Answering questions about the videos.

 

SESSION 2.

 

·      To make a concept mapping  about  pure substances and mixtures:

 

-       https://www.brainpop.com/english/writing/conceptmapping/

-       https://www.brainpop.com/make-a-map/?topic=/english/writing/conceptmapping/

 

 

SESSION 3.

·      Difference between simple and compound substance, and homogeneous and heterogeneous mixture

·      http://www.teachertube.com/video/junior-cert-science-experiments-chemistry-2-of-4-241969

 

·      With salt, sugar, water, oil, sand, alcohol, students have to practise the different types of mixtures

SESSION 4.

·      Separation techniques for heterogeneous mixtures: Filtration and decanting.

·      Separation techniques for homogeneous mixtures: evaporation and distillation.

·      http://mocomi.com/separation-of-substances/

 

SESSION 5.

·      Lab experiment : Separation of a mixture with three or  more components. In groups of 4 , students  have to resolve how to separate the mixture.

·      Calculate the concentration of solution : g/l and %.

SESSION 6.

·      Quiz about the topic.

·      http://www.chem4kids.com/extras/quiz_mattermix/index.html

·      https://cplosangeles.educarex.es/web/cmedio4/loscambiosdelamateria/cambios08.htm

·      https://www.proprofs.com/quiz-school/story.php?title=pure-substances-mixtures-quiz

·      Compilation and evaluation.

 

 

 

GOOGLE DRIVE:  https://docs.google.com/document/d/1_u-iaQ8hm_8ehom-DjIpdlsoqCzp-7aNU8fA8xH3Ln8/edit

 

 

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