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Grade 9 Science Exam Review
Listed are all the concepts that will be covered on the exam. Please ensure to use previous tests and
quizzes to assist you in studying for this exam.
Introductory Unit
S10-4a Carry out procedures that comprise a fair test. Include: control variables
Be able to: Identify independent, dependent, and control variables from a description of an experiment
Notes –
Unit 1: Chemistry
S1-2-03 Define element and identify symbols of some common elements. Include: the first 18
elements and K, Ca, Fe, Ni, Cu, Zn, I, Ag, Sn, Au, W, Hg, Pb, U.
Be able to: Find symbols on a periodic table of elements and provide the name or vice versa. The periodic
table will be provided to you on the exam.
Notes –
S1-2-04 Explain the atomic structure of an atom in terms of the number of protons, electrons, and
neutrons and explain how these numbers define atomic number and atomic mass.
Be able to: a) Name the location, charge, and mass of each atomic particle. Remember: “Elliott, the
enraged electron; Perky Patty proton; Nerdy Nelda neutron”.
b) Calculate the number of protons, electrons and neutrons based on the atomic mass and atomic
number of a given atom.
Notes –
Grade 9 Science Review
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S1-2-05 Assemble or draw Bohr atomic models for the first 18 elements and group them according to
the number of outer shell (or valence) electrons.
Be able to: Draw Bohr models when given an element and determine the number of valence electrons of
that element.
Notes –
S1-2-06 Investigate the development of the periodic table as a method of organizing elements.
Include: periods, families (groups).
Be able to: Identify periods vs. families on a periodic table of element and identify similarities within
family members and period members. This includes the number of valence electrons, if the element is a
metal, non-metal or metalloid, the number of shells the element has in its Bohr model.
Notes –
Grade 9 Science Review
Page 2
S1-2-07 Investigate the characteristic properties of metals, non-metals, and metalloids and classify
elements according to these properties. Examples: ductility, conductivity of heat and electricity,
lustre, reactivity...
Be able to: Give characteristics and properties of metals, non-metals and metalloids. Give characteristics
of physical properties – states of matter, hardness, malleability, ductility, melting and boiling points,
solubility, viscosity, density.
Notes –
S1-2-08 Relate the reactivity and stability of different families of elements to their atomic structure.
Include: alkali metals, alkaline earths, halogens, noble gases.
Be able to: Identify locations of the families on the periodic table of elements and give basic information
about their atomic structure and how this affects their reactivity.
Notes –
S1-2-09 Compare elements to compounds. Include: atoms, molecules.
Be able to: Differentiate between elements and compounds in terms of atoms vs. molecules of atoms
(Example 1 hydrogen atom vs. 1 water molecule (2 hydrogens and 1 oxygen bonded together)
Notes –
Grade 9 Science Review
Page 3
S1-2-10 Interpret chemical formulas of elements and compounds in terms of the number of atoms of
each element.
Be able to: Given a formula, be able to identify the type and number of atoms present
Notes –
S1-2-12 Differentiate between physical and chemical changes.
Be able to: Identify characteristics of a physical change vs. a chemical change and be able to identify a
change as physical or chemical based on a description of observation and justify your answer
Notes –
Grade 9 Science Review
Page 4
Unit 2: Electricity
S1-3-01 Demonstrate evidence for the existence of two types of charge.
Be able to: Understand there are two types of charges; negative and positive and how this is proven
every day. (Attraction and repulsion)
Notes –
S1-3-03 Explain how a discrepant event can be used to evaluate the particle model of electricity.
Include: the attraction of neutral objects to charged objects.
Be able to: Give the law of attraction and repulsion. Understand how charges interact with each other in
like and opposite charged objects as well as how charges objects interact with neutral objects.
Notes –
Grade 9 Science Review
Page 5
S1-3-04 Relate the particle model of electricity to atomic structure.
Be able to: Understand how the structure of the atom explains electricity as the flow of electrons.
Notes –
S1-3-05 Investigate and explain electrostatic phenomena using the particle model of electricity.
Include: conservation of charge, conduction, grounding, attraction of a neutral insulator, induction.
Be able to: Understand how charges get transferred, the different methods in which this happens.
Understand what conductors and insulators are and give examples. Understand how objects become
grounded and what this means for the charge that was present in the object before it became grounded.
Be able to draw and describe the process of conduction. Use the electrostatic series to identify the
resulting charges of materials when charged through friction.
Notes –
S1-3-09 Define electric current as charge per unit time and solve related problems. Include: 𝑰
=
𝑸
𝒕
Be able to: Understand current, charge and time (as well as the unit associated with each), how they are
related to each other as well as be able to solve problems to detemine missing values.
Notes –
Grade 9 Science Review
Page 6
S1-3-10 Define voltage (electric potential difference) as the energy per unit charge between two
points along a conductor and solve related problems. Include:
𝑽=
𝑬
𝑸
Be able to: Understand voltage, work and charge (as well as units associated with each), how they are
related to each other as well as be able to solve problems to find for missing values.
Notes –
S1-3-13 Construct electric circuits using schematic diagrams. Include: Series and Parallel
Be able to: Identify and name the parts of schematic diagrams, be able to construct a schematic diagram
when given a written description.
Notes -
Grade 9 Science Review
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S1-3-15 Compare and contrast voltage (electric potential difference) and current and resistance in
series and parallel circuits. Include: cells, resistance. Use Ohm’s Law ( V  IR )
Be able to: Compare and contrast the characteristics of series and parallel circuits.
Notes –
S1-3-16 Investigate and describe qualitatively the relationship among current, voltage (electric
potential difference), and resistance in a simple electric circuit.
Be able to: Calculate the Amps, Volts, Resistance or Current in a given circuit (V=IR)
Notes –
Grade 9 Science Review
Page 8
S1-3-20 Define electrical power as energy per unit time, and solve related problems.
Include: 𝑷
𝑬
= .
𝒕
Be able to: Understand power, energy and time (as well as unit associated with all), how they are related
to each other as well as be able to solve problems to find for missing values.
Notes –
S1-3-21 Develop a formula for domestic power consumption costs, and solve related problems.
𝑷𝒐𝒘𝒆𝒓 ×𝒕𝒊𝒎𝒆 ×𝑼𝒏𝒊𝒕 𝑷𝒓𝒊𝒄𝒆
Include: 𝑪𝒐𝒔𝒕 =
𝒌𝑾𝒉
Be able to: Calculate cost (as well as unit associated with all units involved), how they are related to each
other as well as be able to solve problems to find for missing values.
Notes –
Grade 9 Science Review
Page 9
S1-3-22 Analyze the electrical energy consumption of a household appliance.
Include: calculate consumption using Energy guide labels, read hydro meter, interpret monthly hydro
bill.
Be able to: Read a hydro meter and calculate the cost of a monthly bill or consumption of an appliance
based on values given.
Notes –
S1-3-23 Recognize and explain the importance of incorporating principles of electrical energy
conservation into the decision-making process.
Be able to: State advantages and disadvantages of hydroelectric, nuclear, and fossil fuel burning
generation of electrical power.
Notes –
Grade 9 Science Review
Page 10
Unit 3: Reproduction
S1-1-01 Illustrate and explain the process of mitotic cell division in plants and animals. Include:
chromosomes, mitosis, cytoplasmic division, cell cycle.
Be able to: Recognise a mitosis diagram and label the phases as well as give a brief description of what is
occurring during those phases.
Notes –
S1-1-03 Describe various types of asexual reproduction that occur in plant and animal species.
Examples: fission, budding, sporulation, vegetative propagation, regeneration...
Be able to: Have a general understanding of different types of asexual reproduction and which organisms
use each different method of asexual reproduction. Be able to illustrate each and give one example of a
species from each type.
Notes –
Grade 9 Science Review
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S1-1-05 Illustrate and explain the production of male and female gametes by meiosis.
Be able to: Recognize a meiosis diagram and label the phases as well as give a brief description of what
is occurring during those phases.
Notes –
S1-1-06 Compare and contrast the function of mitosis to that of meiosis. Include: diploid cells, haploid
cells.
Be able to: Compare and contrast mitosis to meiosis in process and function.
Notes –
S1-1-07 Compare sexual and asexual reproduction in terms of their advantages and disadvantages for
plant and animal species.
Be able to: Give examples of disadvantages and advantages of sexual and asexual reproduction.
Notes –
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S1-1-09 Describe the structure and function of the male and female human reproductive systems.
Include: role of hormones.
Be able to: Understand which hormones play a role in male and female development, particularly
testosterone in males and the roles that hormones such as LH, FSH, estrogen and progesterone play in
menstrual cycle, label the female and male reproductive systems, the four phases of the menstrual cycle
Notes –
S1-1-10 Outline human development from conception through birth. Include: X and Y chromosomes,
zygote, embryo, fetus.
Be able to: Understand major developmental milestones at each trimester in fetal development.
Notes –
Grade 9 Science Review
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S1-1-12 Differentiate between dominant and recessive genes. Include: genotype, phenotype.
Be able to: Understand the terms genotype, phenotype, homozygous dominant, homozygous recessive
and heterozygous and what the different genetic combinations will mean for the phenotype being
expressed. Be able to make and draw conclusions from a Punnett square.
Notes –
S1-1-14 Explain the inheritance of sex-linked traits in humans and use a pedigree to track the
inheritance of a single trait
Be able to: Understand types of pedigrees, symbols associated with sexes in pedigrees, and how to
construct a pedigree using information given in a problem.
Notes –
Grade 9 Science Review
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