Grade 9 Science Worksheets

Learning Objectives

• Explain the concept of work as energy transfer by a force over a distance.
• Describe how simple machines alter force, distance, and mechanical advantage.
• Identify real-world examples of levers, pulleys, and inclined ramps in Alberta contexts.+ Show more

Learning Objectives

• Evaluate how lifestyle and environmental factors (nutrition, physical activity, tobacco exposure, pollutant inhalation, and sleep) can affect human health from cellular to system-level outcomes.
• Use evidence from correlations and mechanisms (oxidative stress, chronic inflammation, membrane transport changes, and hormonal signaling) to reason about likely causes and potential reversibility.
• Interpret simple health claims by distinguishing epidemiological patterns from direct proof of causation.

Learning Objectives

• Understand the physical and chemical properties that are used to identify minerals
• Learn how crystal structures relate to mineral classification
• Recognize how mineral properties inform about formation environments+ Show more

Learning Objectives

• Identify key components involved in power distribution systems.
• Understand how electricity moves from generation to consumers.
• Recognize regional examples of power transmission like hydroelectric and wind farms.+ Show more

Learning Objectives

• Understand the structure and function of ATP as the cell's energy currency.
• Describe the process of ATP hydrolysis and its role in releasing energy.
• Explain how ATP is regenerated through phosphorylation in biochemical pathways.+ Show more

Learning Objectives

• Understand how mole relationships connect masses of reactants and products in balanced chemical equations.
• Learn to use molar mass to convert between mass and amount of substance.
• Interpret coefficients in balanced equations to determine mole ratios of reactants and products.+ Show more

Learning Objectives

• Explain how Earth's rotation causes the daily movement of the Sun and stars across the sky.
• Describe the concept of celestial coordinate systems, including altitude and azimuth.
• Understand the reasons for the changing visibility of stars and planets over nights and seasons.+ Show more

Learning Objectives

• Understand the role of hormonal feedback mechanisms in maintaining homeostasis.
• Explain how insulin and glucagon regulate blood glucose levels via negative feedback loops.
• Describe the thyroid gland's control of metabolic rate through hormonal regulation.+ Show more

Learning Objectives

• Understand the key factors influencing population growth and decline
• Identify density-dependent and density-independent factors
• Connect demographic processes to ecosystem dynamics

Learning Objectives

• Analyze how body systems interact to maintain homeostasis and support survival.
• Understand feedback mechanisms, set points, and system regulation processes.
• Describe examples of thermoregulation, acid-base balance, and stress responses.+ Show more

Learning Objectives

• Identify the main idea and key vocabulary about ecosystem services.
• Explain how biodiversity supports different ecosystem services.
• Recognize how human actions can affect service delivery.

Learning Objectives

• Describe the hierarchy of biological organization from molecules to organisms.
• Explain the concept of emergent properties at each level of biological structure.
• Identify how components assemble hierarchically to form complex systems.

Learning Objectives

• Explain the main processes of the hydrologic (water) cycle: evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Describe how residence time and water fluxes affect water availability in different reservoirs.
• Analyze how watershed characteristics, porosity, and permeability influence how water partitions between surface and subsurface flow.+ Show more

Learning Objectives

• Describe how distance and time relate in steady motion.
• Identify characteristics of constant speed using distance-time graphs.
• Explain how changes in speed affect the shape of a distance-time graph.+ Show more

Learning Objectives

• Understand how the nervous and endocrine systems coordinate responses to stimuli.
• Identify the roles of neural impulses and hormones in maintaining homeostasis.
• Explain how systems interact to regulate internal functions like metabolism and growth.+ Show more

Learning Objectives

• Use quantitative measurements to constrain scientific claims and select among model-based explanations.
• Evaluate how well different models match data by checking trends, proportionality, and residual errors.
• Identify and justify assumptions in models, and explain how uncertainty affects evidence-based judgments.

Learning Objectives

• Interpret standardized symbols on circuit diagrams to identify components and their connection types.
• Use reference nodes and labeling to predict how current paths and voltage relationships form.
• Translate schematic information into practical understanding of residential and control-circuit layouts.

Learning Objectives

• Understand that compounds are substances made of two or more elements in fixed ratios.
• Recognize how chemical formulas convey elemental ratios and masses.
• Explain how covalent and ionic bonds influence the properties of compounds.+ Show more

Learning Objectives

• Understand the key drivers of climate change including greenhouse gases, albedo effects, aerosols, and land-use feedbacks.
• Describe basic concepts of radiative transfer and the Earth's energy budget.
• Explain how human activities perturb the carbon cycle and influence climate projections.+ Show more

Learning Objectives

• Explain how magnetic field lines indicate direction and relative strength around magnets and currents
• Apply the right-hand rule to predict magnetic field orientation for a current-carrying wire
• Describe how magnetic forces and torque relate to magnetic devices such as motors and electromagnets+ Show more

Learning Objectives

• Explain how genes and alleles determine genotypes and how genotypes relate to observable phenotypes.
• Use dominant and recessive relationships to predict which traits may appear in offspring.
• Interpret heredity evidence using genotype–phenotype reasoning across generations.

Learning Objectives

• Understand the steps involved in the engineering design cycle.
• Identify key criteria and constraints in designing solutions.
• Apply modeling and refinement techniques to improve designs.+ Show more

Learning Objectives

• Understand how evidence supports scientific claims and arguments.
• Identify patterns in data that support or weaken claims.
• Evaluate alternative explanations considering data uncertainty and bias.+ Show more

Learning Objectives

• Explain the relationship between force, mass, and acceleration.
• Differentiate between mass and weight.
• Apply Newton's second law to real-world situations involving acceleration and force.

Learning Objectives

• Describe the concept of genetic drift and how it affects populations.
• Identify different events like bottlenecks and founder effects that lead to genetic drift.
• Explain how chance influences genetic variation and evolutionary pathways in small populations.+ Show more

Learning Objectives

• Identify key components of the nervous system such as neurons, synapses, and neural circuits.
• Understand the process of signal propagation via action potentials and synaptic transmission.
• Explain how cellular features like myelination affect conduction velocity.+ Show more

Learning Objectives

• Understand the concept of chemical compounds and their fixed element ratios
• Learn how to interpret chemical formulas
• Differentiate between covalent and ionic bonding effects+ Show more

Learning Objectives

• Understand the different types of chemical reactions such as combustion, synthesis, and decomposition.
• Describe how chemical equations represent reactions and relate to real-world processes.
• Identify reactants and products in symbolic chemical equations.+ Show more

Learning Objectives

• Understand the conventions used for conveying quantitative uncertainty and confidence in scientific reports.
• Identify different ways of expressing effect sizes, likelihood statements, and visualizations that display variability.
• Explain the importance of clarity about assumptions, extrapolation limits, and alternative interpretations when reporting numerical findings.+ Show more

Learning Objectives

• Explain the steps of a design cycle and how evidence guides revisions.
• Identify constraints and criteria in a real-world engineering problem.
• Describe how modeling or prototyping helps test and improve a solution.

Learning Objectives

• Understand the process of chemical reactions and their types.
• Identify examples of combustion, synthesis, and decomposition reactions.
• Interpret symbolic chemical equations to relate qualitative observations with quantitative data.+ Show more

Learning Objectives

• Understand how energy flows through food chains from producers to consumers.
• Explain how matter cycles through organisms and the environment via processes like photosynthesis and respiration.
• Interpret models and evidence such as trophic level relationships and biomass changes to understand energy and matter transfer.+ Show more

Learning Objectives

• Identify the four principal tissue types and their cellular components.
• Describe the extracellular matrix differences among tissue classes.
• Explain the specialized functions of epithelial, connective, muscle, and nervous tissues.+ Show more

Learning Objectives

• Understand the concepts of power as the rate of energy transfer in various systems.
• Explain the meaning of efficiency in energy conversion and how it impacts system performance.
• Analyze real-world examples of power and efficiency in engineering applications like turbines, engines, and heating systems.+ Show more

Learning Objectives

• Identify major eukaryotic cell organelles and understand their functions.
• Explain the importance of the nucleus and mitochondria in cellular activities.
• Describe how organelles work together to support cell survival and function.

Learning Objectives

• Understand how insulin and glucagon regulate blood glucose levels.
• Describe the endocrine feedback mechanisms involved in energy homeostasis.
• Identify tissues involved in glucose uptake, storage, and release.+ Show more

Learning Objectives

• Describe major energy sources that affect Earth systems, including solar radiation and geothermal heat flow.
• Explain how energy is transferred through conduction, convection, and radiation within the atmosphere and oceans.
• Connect energy gradients to atmospheric and ocean circulation, weathering, and tectonic processes.+ Show more

Learning Objectives

• Define static and kinetic friction
• Explain how friction opposes motion between surfaces
• Describe how surface properties and normal force influence friction+ Show more

Learning Objectives

• Identify evidence in a text that links endoplasmic reticulum structure to cell function
• Compare how smooth and rough endoplasmic reticulum differ in appearance and role
• Use specific vocabulary (organelle, membrane, protein, lipid) to explain structure–function relationships

Learning Objectives

• Understand how mechanical and chemical digestion occurs in the mouth and stomach.
• Describe how nutrients are absorbed across the intestinal epithelium.
• Identify the roles of villi and microvilli in increasing surface area for absorption.+ Show more

Learning Objectives

• Explain how particle collisions relate to pressure in gases
• Describe the relationship between temperature and kinetic energy of gas particles
• Illustrate how volume changes with pressure and temperature based on the particle model+ Show more

Learning Objectives

• Explain how environmental exposures and lifestyle factors can contribute to chronic disease through biological mechanisms.
• Describe how dose–response and vulnerability factors influence the risk of long-term health outcomes.
• Compare epidemiological and mechanistic evidence for environmental health risks.

Learning Objectives

• Understand the differences between homogeneous and heterogeneous mixtures.
• Identify examples of different mixtures in everyday life.
• Describe physical separation methods such as filtration, distillation, magnetic separation, and decanting.+ Show more

Learning Objectives

• Understand the basic process of glycolysis
• Identify key molecules involved in glycolysis
• Recognize the differences in energy production under aerobic and anaerobic conditions

Learning Objectives

• Understand the concept of albedo feedback and its role in climate change.
• Identify factors that influence surface reflectivity and their effects on regional warming.
• Analyze feedback mechanisms such as ice, snow, vegetation, and cloud cover.+ Show more

Learning Objectives

• Explain how body systems coordinate to maintain homeostasis using feedback mechanisms, set points, and coupling between organs.
• Describe circulation–respiration coupling and how neural and renal regulation affect blood flow and blood volume.
• Evaluate how endocrine signaling and autonomic responses work together during stressors to stabilize internal conditions.

Learning Objectives

• Understand the societal uses and benefits of common chemicals.
• Assess potential risks and environmental impacts associated with chemical use.

Learning Objectives

• Explain how collision frequency, activation energy, and reaction pathways influence reaction rates.
• Describe how temperature, concentration, and catalysts modify energy distributions and affect reaction speed.
• Understand and interpret rate laws and reaction order through examples such as bromine-iodide kinetics.+ Show more