Grade 9 Worksheets

Learning Objectives

• Understand how fossil record, anatomical comparisons, and molecular data provide evidence for evolution.
• Identify different types of evidence used to infer evolutionary relationships.
• Explain how integrating multiple lines of evidence strengthens understanding of descent with modification.+ Show more

Learning Objectives

• Explain how storage reservoirs and time scales affect Earth system change
• Describe how carbon exchange among the atmosphere, oceans, living systems, and rocks influences atmospheric carbon
• Connect energy flow to evaporation, winds, temperature, and hydrologic feedbacks+ Show more

Learning Objectives

• Understand the symbols and conventions used in pedigree charts.
• Identify patterns of inheritance such as autosomal, X-linked, and mitochondrial traits.
• Analyze pedigree data to distinguish between dominant and recessive inheritance.+ Show more

Learning Objectives

• Explain how conservation of matter applies to chemical reactions and balanced equations.
• Use atom counting to balance simple chemical equations with correct coefficients.
• Interpret coefficients as particle ratios while keeping subscripts unchanged.

Learning Objectives

• Explain how quantitative measurements constrain scientific claims and models.
• Use model predictions to evaluate competing explanations for motion, forces, energy transfer, or wave behavior.
• Identify and justify assumptions in scientific models and describe how evidence supports them.

Learning Objectives

• Explain how scientific arguments connect evidence to reasoning when evaluating a claim.
• Use patterns in data to justify whether a proposed explanation is supported or weakened by measurements.
• Identify how uncertainty, incomplete data, and possible bias affect confidence in scientific claims.+ Show more

Learning Objectives

• Explain how cellular structures (nucleus, mitochondria, membranes) support specific functions
• Describe how organism-level structures (bones, muscles, plant tissues, skin) reflect their biological roles
• Use model-based reasoning to link a structure’s physical properties to what it does+ Show more

Learning Objectives

• Understand the principles of mechanical energy conservation and energy transfers.
• Identify and describe real-world examples of energy conversions in Alberta contexts.
• Analyze the effects of non-conservative forces like friction on energy transfer.+ Show more

Learning Objectives

• Describe the fundamental principles of cell theory.
• Differentiate between unicellular and multicellular organisms.
• Explain the differences between prokaryotic and eukaryotic cells.+ Show more

Learning Objectives

• Understand how multiple lines of evidence support evolutionary relationships.
• Identify the types of fossil, anatomical, and molecular data used in evolutionary studies.
• Analyze how fossil, anatomical, and molecular evidence are integrated to reconstruct past biodiversity.+ Show more

Learning Objectives

• Understand the interconnected nature of metabolic pathways and enzyme catalysis.
• Differentiate between catabolic and anabolic pathways and their roles in energy management.
• Explain how energy regulation aligns pathway activity with cellular needs.+ Show more

Learning Objectives

• Understand Mendelian and Non-Mendelian inheritance patterns.
• Identify different types of inheritance such as incomplete dominance, codominance, and sex-linked traits.
• Explain how environmental factors and gene linkage influence trait expression.+ Show more

Learning Objectives

• Understand how to interpret displacement–time, velocity–time, and acceleration–time graphs.
• Identify the physical quantities represented by the slope and area in motion graphs.
• Recognize changing acceleration through curved segments on graphs.+ Show more

Learning Objectives

• Explain the origins of tidal forces resulting from gravitational interactions among the Moon, Sun, and Earth.
• Describe how the relative positions of the Sun and Moon influence spring and neap tides.
• Identify how local coastline geometry, ocean depth, and resonant basins affect tidal amplitudes.+ Show more

Learning Objectives

• Understand the key components that influence Earth's climate, including the atmosphere, oceans, ice, land surface, and living organisms.
• Explain how solar energy and internal Earth's heat contribute to climate patterns.
• Identify factors such as aerosols, greenhouse gases, ocean circulation, and land surface properties that cause climate variability.+ Show more

Learning Objectives

• Explain the structure and function of DNA and chromosomes.
• Describe how genetic material is organized within cells.
• Distinguish between nuclear and organelle genomes.+ Show more

Learning Objectives

• Analyze how body systems interact to maintain homeostasis under various conditions.
• Explain feedback mechanisms, set points, and the coordination between endocrine and autonomic responses.
• Describe examples such as thermoregulation, acid-base balance, and responses to stress.+ Show more

Learning Objectives

• Explain key molecular techniques used in biotechnology such as PCR, gel electrophoresis, DNA sequencing, and CRISPR genome editing.
• Identify various applications of biotechnology in research, medicine, agriculture, and forensics.
• Discuss ethical, legal, and societal considerations associated with biotechnological advancements.

Learning Objectives

• Understand the origin and characteristics of Earth's magnetic field.
• Explain regional variations in magnetic declination and their implications.
• Describe how magnetic dip and field behavior relate to planetary magnetism.+ Show more

Learning Objectives

• Understand the ecological, economic, and health risks associated with genetic technologies.
• Evaluate potential benefits and trade-offs of adopting genetic approaches.
• Explain risk assessment, mitigation strategies, and long-term monitoring in biotechnology.+ Show more

Learning Objectives

• Explain the process of fertilization and its role in forming a zygote.
• Differentiate between internal and external fertilization strategies with examples.
• Describe embryonic stages such as cell differentiation and morphogenesis.+ Show more

Learning Objectives

• Understand how series and parallel circuits combine within complex networks.
• Apply systematic methods to simplify mixed circuit arrangements.
• Identify equivalent resistances and analyze current and voltage distributions.+ Show more

Learning Objectives

• Explain how polygenic inheritance, epistasis, and pleiotropy can cause deviations from simple Mendelian ratios
• Describe how variable penetrance and expressivity affect whether and how genotypes show up as phenotypes
• Evaluate how linkage and environmental factors can change observed inheritance patterns in families and populations

Learning Objectives

• Explain how plate convergence and continental collision produce mountain building through folding, thrust faulting, and crustal shortening.
• Identify key tectonic processes (magmatic intrusion and isostatic rebound) and describe how they change rock structure and elevation.
• Use rock types, structural patterns, and timing clues to infer tectonic history and reconstruct past plate motions.

Learning Objectives

• Compare DNA and RNA structural features, including strand structure, sugar type, and base composition
• Explain how complementary base pairing and strand directionality relate to replication and transcription
• Describe how structural differences influence the stability and functions of DNA and RNA

Learning Objectives

• Explain how natural selection increases the frequency of heritable traits that improve reproductive success in a specific environment.
• Describe selective pressure, fitness, and adaptive trade-offs using examples from Alberta.
• Compare artificial selection in agriculture with natural selection and infer how adaptation can accumulate over generations.

Learning Objectives

• Explain how ligands bind to receptors and initiate signal transduction inside cells
• Describe how second messengers and phosphorylation help relay and amplify signals
• Compare autocrine, paracrine, endocrine, and synaptic signaling by distance and time scale+ Show more

Learning Objectives

• Explain how the changing geometry between the Sun, Earth, and Moon causes the visible lunar phases.
• Describe the synodic month and why lunar phases repeat in a predictable sequence.
• Use illuminated fraction and viewing perspective to predict which phase comes next.

Learning Objectives

• Explain how pulmonary ventilation and cardiovascular transport work together to deliver oxygen and remove carbon dioxide.
• Describe how heart rate, stroke volume, and vascular resistance can change in response to respiratory and metabolic demands.
• Use chemoreceptor feedback to predict how changes in blood gases affect ventilation and circulation.+ Show more

Learning Objectives

• Identify major eukaryotic cell organelles and describe their primary functions
• Explain how an organelle’s structure and molecules relate to the cell task it performs
• Compare how organelle roles support different tissue needs in plants and animals

Learning Objectives

• Differentiate ionic, covalent, and metallic bonding based on electron interactions.
• Predict some macroscopic properties (melting point, conductivity, structure/solubility patterns) from bonding type.
• Apply bonding ideas to real-world examples such as sodium chloride and metal ores.

Learning Objectives

• Explain how power distribution systems deliver electricity from generation to homes and businesses
• Describe why voltage transformation and feeder topology affect reliability and capacity
• Analyze how regional constraints and fault propagation influence system design and resilience

Learning Objectives

• Describe how component voltage-current (V–I) and current-temperature (I–T) relationships reveal different behaviors.
• Explain why power dissipation and temperature changes affect component stability, energy loss, and lifespan.
• Apply component curve ideas to real-world examples such as resistors, diodes, thermistors, and incandescent filaments.

Learning Objectives

• Differentiate between speed, velocity, and acceleration using scalar vs. vector descriptions
• Apply sign conventions and unit conversions when analyzing 1D motion
• Use kinematic algebra relationships to compute unknown quantities and interpret results

Learning Objectives

• Differentiate ionic, covalent, and metallic bonding based on electron behavior
• Connect bond type to common observable properties such as melting point and conductivity
• Use particle-level reasoning to predict how bonding affects physical and chemical behavior

Learning Objectives

• Identify observable evidence that indicates a chemical change has occurred
• Connect evidence markers (color shift, gas, precipitate, temperature, and irreversibility) to the formation of new substances
• Explain why some observations suggest physical changes instead of chemical changes

Learning Objectives

• Assess whether an electrical application is safe and effective by comparing device ratings to supply and operating conditions.
• Identify protective measures that match common electrical hazards in real-world settings.
• Evaluate energy efficiency and environmental impacts when choosing or judging an electrical system.

Learning Objectives

• Explain how fertilization leads to zygote formation and early embryonic development
• Compare internal and external fertilization using real-world habitat examples
• Describe how temperature, moisture, and habitat quality influence developmental success and population dynamics

Learning Objectives

• Explain how mutation, recombination during meiosis, gene flow, and chromosomal rearrangements create genetic variation
• Describe how mutation rate and mutation type can affect genetic diversity in populations
• Use real-world examples to predict how genetic variation changes when organisms are introduced or hybridize in managed systems

Learning Objectives

• Explain how passive transport, osmosis, and active transport move substances across cell membranes
• Distinguish vesicular transport (endocytosis and exocytosis) from movement across the membrane
• Relate membrane transport to homeostasis, including volume regulation and nutrient uptake

Learning Objectives

• Explain how net force and mass affect an object’s acceleration using proportional reasoning
• Identify the importance of direction when dealing with force and acceleration as vectors
• Apply the idea of net force to predict speeding up, slowing down, or changing direction

Learning Objectives

• Explain how compound machines combine multiple simple machines to change force and motion.
• Calculate ideal mechanical advantage using force relationships and displacement-based reasoning.
• Differentiate ideal mechanical advantage from actual performance by accounting for friction and deformation.+ Show more

Learning Objectives

• Explain how magnification, resolution, and contrast affect the appearance of microscope images.
• Compare how light microscopes and electron microscopes produce magnified images.
• Interpret microscope images using scale bars and awareness of sample preparation artifacts.

Learning Objectives

• Explain how sex chromosomes (X and Y) affect inheritance patterns in males and females
• Identify how X-linked recessive traits show different frequencies in populations
• Describe how dosage compensation and hemizygosity influence gene expression+ Show more

Learning Objectives

• Explain how producers, consumers, and decomposers are linked in trophic structures and food chains.
• Compare how energy flows through food webs with how matter cycles through ecosystems.
• Analyze how trophic efficiency and trophic cascades affect biomass and ecosystem productivity.

Learning Objectives

• Explain how the heart, valves, and blood vessels work together to transport oxygen, nutrients, and wastes.
• Describe capillary exchange using filtration and reabsorption and relate these processes to blood pressure and concentration gradients.
• Connect blood components (plasma and cellular elements) to transport capacity and physiological responses such as increased cardiac output.

Learning Objectives

• Explain how energy moves through ecosystems from producers to consumers and decomposers
• Describe how photosynthesis converts light energy into chemical energy in biomass
• Justify why energy transfer between trophic levels is inefficient and creates narrower energy pyramids at higher levels+ Show more

Learning Objectives

• Compare the purposes of mitosis and meiosis in cell growth, repair, and reproduction.
• Describe key chromosome events during mitosis and meiosis (pairing, segregation, and ploidy changes).
• Explain how errors like nondisjunction can affect chromosome number and inheritance.+ Show more