MIXTURES, ELEMENTS AND COMPOUNDS

Elements and compound
Common elements and their symbols
Metals and non- metals

By the end of the lesson, the learner should be able to:
Distinguish between an element and compound
Display written examples of element and compound
Appreciate the importance of packaging in labels
Use a digital device to search the symbols of certain elements
Appreciate the use of symbols in naming elements and compounds


Differentiate between metals and non-metals
Play games involving metals and non-metals
Appreciate the importance of common me

The learner is guide to
Assign appropriate symbols to common salt, and water
discuss the names of common elements and the importance and market value of
common elements
Sample labelled containers of different
substances
indicating the common elements
as part of the ingredients
Discuss the names of common elements and
their symbols the first 13 elements of the
periodic table and commonly used metals:
zinc, lead, tin, gold, mercury
and limited to
the
Latin names only where applicable)
Discuss the importance and market value of
common elements and compounds
The learner is guided to:
Discuss the meaning of the atom and
illustrate its structure protons, neutrons,
and electrons
raw and discuss
the electron
arrangements of elements and classify
them into metals and
Discuss and illustrate the atomic number
and mass number of elements
first 13
elements of the periodic table
use digital or print
int media to search for
information on the
structure of an atom,
electron arrangement, atomic number
and mass number of elements,
?
Project:
model the atomic structure of
selected elements of the periodic table
using locally available materials

How are symbols assigned to elements? What is the value of elements in our day to day life.
hat is the structure of an atom How do atoms gain stability

Laboratory
Apparatus and
Equipment
Textbooks
Software
Relevant reading materials
Digital Devices
Recording
Spotlight Integrated Science Learner's Book Grade 8 pg. 16-17
Spotlight Integrated Science Learner's Book Grade 8 pg. 18
Course book
Basic Laboratory
Apparatus
Equipment
Selected specimens
Ice
Candle wax
Water/salty water
Spotlight Integrated Science Learner's Book Grade 8 pg. 66-67

Reflections Game Playing Model Making Explorations Experiments Investigation Conventions, Conferences, and Debates Project
Written Test Assessment Rubrics Checklist Anecdotal Records Oral Questions and Answers Reflections Making Explorations Experiments Investigations Conventions, Conferences, and Debates Applications Teacher Observations Project Journals Portfolio Oral or Aural Questions Learner's Project

MIXTURES, ELEMENTS AND COMPOUNDS

Metals and non -metals
Metals and non- metals

By the end of the lesson, the learner should be able to:
Draw the structure of metals and non -metals
Determine the atomic mass and number of elements
Appreciate the importance of mixture and compounds
Describe the structure of an atom and electron arrangements of elements
Draw the structure of metals and non -metals
Appreciate the importance of non -metals in our daily lives

The learner is guided to:
Discuss the meaning of the atom and illustrate its structure (protons, neutrons,and electrons raw and discuss
the electron
arrangements of elements and classify
them into metals and
elements of the periodic table
use digital or
internet media to search for
information on the
structure of an atom,
electron arrangement, atomic number
and mass number of elements,
Project:
model the atomic structure of
selected elements of the periodic table
using locally available materials
Discuss the meaning of the atom and illustrate its structure (protons,neutrons,
and electrons), raw and discuss
the electron arrangements of elements and classify them into metals and non
metals
use digital
int media to search for
electron arrangement, atomic number and mass number of elements,

hat is the structure of an atom? How do atoms gain stability

Course book
Basic Laboratory
Apparatus
Equipment
Selected specimens
Ice
Candle wax
Water/salty water
Spotlight Integrated Science Learner's Book Grade 8 pg. 66-67

Written Test Assessment Rubrics Checklist Anecdotal Records Oral Questions and Answers Reflections Explorations Experiments Investigation Conventions,

Mixtures, element and compounds.

Structure of an atom.
Structure of an atom.

By the end of the lesson, the learner should be able to:

-Define the term atom.
-Describe the structure of an atom.
-Draw the structure of an atom.
-Appreciate the structure of an atom.
-Differentiate between atomic number and mass number.
-Determine the mass number of the first twenty elements in the periodic table.
-Prepare charts showing the mass number of the twenty elements.

In groups or pairs, learners are guided to: -
-Discuss and give the meaning of an atom.
-Use digital or print resources to search for information about the structure of an atom.
-Draw the structure of an atom.
-Use digital devices or print resources to find the meaning of atomic and mass numbers.
-Discuss the difference between mass and atomic number.
-Work out the mass number of the first twenty elements collaboratively.

-How is the structure of an important? -What are the components of atoms?

Sportlight
integrated science learner
integrated science studies learner

-Observation. -Oral questions. -Assessment rubrics. -Checklists. -Written tests.

Mixtures, element and compounds.

Structure of an atom.

By the end of the lesson, the learner should be able to:
-Define the term electron arrangement.
-Draw the electron arrangement in an atom using crosses or dots diagrams.
-Show interest in drawing electron arrangement in atoms using crosses or dots diagrams.

-Explain the meaning of electron arrangement and energy level.
-Observe the teacher or video clip on drawing electron arrangement in atoms using dots or cross diagrams.
-Illustrate the electron arrangement in atoms using dot or cross diagrams.

What is electron arrangement?

Sportlight
integrated science studies learner

-Oral questions. -Observation. -Checklists. -Illustration. -Written questions.

Mixtures, element and compounds.

Structure of an atom.
Structure of an atom.

By the end of the lesson, the learner should be able to:
-Draw electronic arrangement of the first twenty elements on charts and books.
-Enjoy drawing the electron arrangement of the first twenty elements in periodic table.
-Identify the features used to distinguish metals and non-metals based on their tendency to lose or gain electrons.
-Search for information on How you can classify elements based on electron arrangement.
-classify elements in metals and non-metals based on the electron arrangement.
-Prepare charts showing the metal and non-metal elements.
-Show interest in classifying elements into metals and non-metals.

-Draw electron arrangement of the first twenty elements using dots or cross diagrams on charts and excises books.
-Display their charts in class and peers to assess them and give feedback.
-Use digital devices to Search for information on which feature one can Use to distinguish metals based on electron arrangement.
-Discuss How number of valence electrons distinguishes metals and non-metals based on their tendency to lose or gain electrons.
-Watch video clips on How one can distinguish elements as metal or non-metals.
-Use electron arrangement to classify the first twenty elements into metals and non-metals.
-Collaborate on preparing charts showing classification of elements into metals and non-metals.

-How do you Draw the electron arrangement of elements? -What are valence electrons?
How can one determine an element is a metal or non-metal?

Sportlight
integrated science studies learner

Observation. -Oral questions. -Checklists.
-Observation. -Checklists. -Assessment rubrics. -Oral questions and answers. -Written exercise.

Mixtures, element and compounds.

Structure of an atom.
Structure of an atom assessment.

By the end of the lesson, the learner should be able to:
-Identify some locally available materials used in modelling the atomic structure selected elements of the periodic table.
-Model the atomic structure of the selected elements of the periodic table using locally available materials.
-Enjoy modelling the atomic structure of the selected elements of the periodic table using locally available materials.
-Attempt the questions on the sub-strand; structure of the atom.

-Collaborate on discussing on the suitable locally available materials to Use in modeling elements.
-Collect the locally available materials needed to Model the elements.
-Collaborate in modelling the twenty elements of the periodic table.
-Display their models in call for peer assessment.
Answer questions on the sub-strand; structure of the atom correctly.

Which locally available materials can one use to model the elements of the periodic table?

Sportlight
integrated science studies learner

-Observation. -Checklists. -Assessment rubrics. -Portfolio. -Project.

Mixtures, element and compounds.

Metals and alloys.

By the end of the lesson, the learner should be able to:
-Identify the physical properties of metals.
-Describe the physical properties of metals.
-Search the internet for more information on the physical properties of metals.
-Appreciate the physical properties of the metals.

-Use digital or print resources to Search for information on the physical properties of metals.
-Identify the physical properties of metals.
-Prepare posters or charts showing the physical properties of metals and Display in class.

-What is a metal? -What are the physical properties of metals?

Sportlight
integrated science studies learner

-Assessment rubrics. -Checklists. -Oral questions. -Written questions.

Mixtures, element and compounds.

Metals and alloys.
Metals and alloys.

By the end of the lesson, the learner should be able to:
-Carry out experiments to Show the physical properties of metals.
-Enjoy carrying out the experiments to Show the physical properties of metals.
-Define the composition of alloys.
-Identify the alloys in the locality.
-Discuss the uses of common alloys in the environment.
-Appreciate the uses of different metals in the society.
-Enjoy collecting the metals in the locality.

-Study the procedure for conducting the experiments on physical properties of metals.
-Collaborate in carrying out experiments to demonstrate the physical properties of metals.
-Observe record and Discuss the observation they made.
-Present their findings for assessment.
-Discuss about the meaning of an alloy.
-Identify and Collect the alloys found in the locality.
-Discuss and Present the importance of metals in the community.
-Present their findings and Draw different items made of the alloys they collected.

Which experiment can one conduct to determine the physical properties of metals.

Sportlight
integrated science studies learner

-Demonstration. -Checklists. -Observation. -Oral questions. -Assessment rubrics.

Mixtures, element and compounds.

Metals and alloys.
Metals and alloys.

By the end of the lesson, the learner should be able to:
-Identify uses of different metals in day-to-day life.
-Discuss the uses of different metals.
-Make flashcards or charts to Show the uses of metals in the society.
-Appreciate the uses of metals in the society.
-Identify the uses of alloys in day-to-day life.
-Discuss the uses of the alloys in day-to-day life.
-Prepare charts and flashcards showing the uses of alloys in day-to-day life.
-Appreciate the uses of the different alloys in day-to-day life.
-Explain the meaning of rust in metals.
-Identify the causes of rusting in metals.
-Describe the causes of rusting in metals.
-Appreciate the causes of rusting in metals.

-List some items made of metals in the locality.
-Use digital or print devices to Search for information on the uses of metals.
-Identify and Discuss the uses of the different metals.
-Prepare flashcards or charts showing uses of different metals.
-Work together to Identify some of the items in the locality that are made of alloy.
-Use digital devices to Search for information on uses of common alloys.
-List and Discuss the uses of the common alloys in the locality.
-Prepare charts or flashcards showing the uses of common metals in the locality.
-Observe rusted objects or items in the locality e.g. knives, nails, pangas etc.
-Discuss on the meaning of rusting and Present in class.
-Use digital or print devices to Search for information and causes of rusting in metals.
-Discuss the causes of rusting in metals.

What are the uses of the different metals in the locality?
-What is rusting? -What are the causes of rusting?

Sportlight
integrated science studies learner

-Checklists. -Oral questions. -Written questions. -Assessment rubrics.
-Assessment rubrics. -Checklists Written questions. -Oral questions. -Observation.

Mixtures, element and compounds.

Metals and alloys.
Metals and alloys.

By the end of the lesson, the learner should be able to:
-Carry out simple experiment on the cause of rusting on metals.
-Enjoy carrying out the experiment on causes of rusting on metals.
-Identify the effects of rusting on metals.
- Discuss the effects of rusting on metals.
-Search the internet for information on the effects of rusting.
-Appreciate the effects of rusting on metals in the environment.

-Prepare the requirements for the experiment.
-Work together in carrying out the experiment on causes of rusting.
-Observe, record and Discuss the observation made after a few days.
-Observe some of the metallic objects that have rusted.
-Identify the effects of rusting on metals.
-Use digital devices to Search for more information on the effects of rusting on metals.
-Discuss the effects of rusting on metals.

What are the observation made from the experiment on the causes of rusting?

Sportlight
integrated science studies learner

-Checklists. -Demonstration. -Practical. -Observation. -Oral questions.

Mixtures, element and compounds.

Metals and alloys.

By the end of the lesson, the learner should be able to:
-State different ways of controlling rusting of metals in the environment.
-Discuss the different ways of controlling rusting of metals.
-Search on the internet for the information on ways of controlling rusting of metals.
-Appreciate the different ways controlling rusting of metals.

-Discuss the different ways of controlling rusting on metals.
-Use digital devices to Search for information on ways of controlling rusting on metals.
-Discuss the different ways of controlling rusting on metals.

Which ways are best for controlling rusting on metals?

Sportlight
integrated science studies learner

-Assessment rubrics. -Oral questions. -Observation. -Checklists. -Written questions.