Science 9: Atoms and Elements Unit (Chemistry) Checklist
Outcome 1: Distinguish between physical and chemical properties
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Demonstrate knowledge of WHMIS standards by identifying WHMIS symbols that represent each category,
examples of substances that belong within each category, and the risks and cautions associated with each
category.
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Investigate physical properties of materials such as smell, colour, melting point, boiling point, density,
solubility, ductility, crystal shape, conductivity, hardness, lustre, texture, and malleability.
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Investigate changes in the properties of materials and identify those that are indicators of chemical
changes (e.g., change in colour, change in odour, formation of a gas or precipitate, or the release or
absorption of thermal energy).
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Differentiate between physical and chemical properties of matter and physical and chemical changes in
matter
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Use equipment, tools, and materials appropriately and safely when conducting investigations into physical
and chemical properties of substances.
Outcome 2: Analyze historical explanations of the structure of matter (Dalton, Thomson, Rutherford, Bohr)
Use appropriate scientific terminology when describing atoms and elements (e.g., mass, charge, electron,
proton, neutron, nucleus, atom, molecule, element, compound, neutral, positive, negative, ion, isotope,
and periodic table).
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Construct diagrams or models to illustrate the structure and components of matter, including the major
historical atomic models (e.g., Dalton, Thomson, Rutherford, and Bohr)
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Discuss strengths and limitations of models
Outcome 3: Demonstrate an understanding of the classification of pure substances (elements and compounds),
including the development and nature of the Periodic Table.
Differentiate between elements, compounds, and mixtures
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Construct a graphic representation of one or more elements that symbolizes each element in a meaningful
way and contains relevant information such as name, atomic number, possible uses, and historical
background. (Create an element poster!)
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Identify examples of common elements and compare their atomic structure and physical and chemical
properties.
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Identify potential applications of elements (on poster!)
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Identify the eight elements that occur in nature as diatomic molecules (e.g., H₂, N₂, O₂, F₂, Cl₂, Br₂, I₂,
and At₂).
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Write and interpret chemical symbols of elements and compounds and identify the elements and number
of atoms of each in a given compound (e.g., Na, C, H₂O, H₂O₂, CO, CO₂, KCl, HCl, NaCl).
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Interpreting the organizational structure and patterns inherent within the periodic table, including
periods, groups (families), atomic mass (mass number), atomic number, metals, non-metals, and
metalloids.
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Predict the physical and chemical properties of an element or family of elements (e.g., alkali metals,
alkaline-earth metals, hydrogen, halogens, noble gases, and transition metals) based on its position within
the periodic table.
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Determine the number of protons and electrons in an atom given the atomic number of an element.
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Determine the number of electrons, protons, and neutrons of an isotope of an element given the atomic
number and mass number of an element.
Using the information on the previous page, track your progress through the indicators.
Outcome
Indicator
1
WHMIS
1
Physical Properties
1
Physical and
chemical change
1
Proper use of
equipment &
material
2
Terminology/
Definitions of parts
of an atom.
2
Diagrams /models
of the atom
Compare models
3
Differentiate
between elements
and compounds
3
Construct a graphic
representation of
an atom of an
element
Diatomic elements
(list/identify them)
3
3
Identify
applications of
some elements
3
Write and interpret
symbols of
elements and
compounds
Understanding the
organization of the
periodic table
Determine the
subatomic
composition of an
isotope
3
3
Activity (Worksheet,
Lab, Notes, Definitions,
Project, etc.)
Evidence I have learned (Feedback
from teacher, peers, self assessment,
assignment correct, quiz correct, etc)
“DO I UNDERSTAND?”
Areas to improve (next steps, what
can I do to improve?, what help do I
need? What resources can I use? etc.)