Grade 9 Science Worksheets

Learning Objectives

• Explain how wind and solar variability affects grid operation and dispatch planning.
• Describe how energy storage and grid balancing help maintain reliable electricity supply.
• Evaluate the environmental and economic trade-offs of integrating renewables in a regional grid.

Learning Objectives

• Identify the main idea and key supporting details about biological classification.
• Explain how classification helps scientists communicate about living organisms.

Learning Objectives

• Explain how water cycles through interconnected Earth reservoirs using evaporation, condensation, precipitation, and runoff.
• Describe how carbon moves among the atmosphere, living things, oceans, and rocks through photosynthesis, respiration, and chemical exchange.
• Connect Earth’s energy balance (solar vs. Earth radiation) to weather and temperature changes.

Learning Objectives

• Explain how allele frequencies change under Hardy-Weinberg equilibrium assumptions and when those assumptions break down
• Describe how genetic drift, bottlenecks, and founder effects can reduce genetic diversity in small or isolated populations
• Evaluate how gene flow and natural selection interact with stochastic processes to shape evolutionary trajectories

Learning Objectives

• Understand how to interpret scatterplots and identify patterns
• Recognize outliers and trends in graphical data
• Learn the basics of constructing different types of graphs+ Show more

Learning Objectives

• Explain how simple machines transfer forces to change effort, direction, or displacement
• Compare ideal mechanical advantage with real-world outcomes caused by friction and support geometry
• Apply relationships among input force, load, and displacement to common machine examples

Learning Objectives

• Understand the hierarchical levels of biological organization from cells to systems.
• Describe the functions of different tissues, organs, and systems.
• Explain how cell specialization contributes to organ functions.+ Show more

Learning Objectives

• Identify different types of epithelial tissues
• Understand the functions of epithelial tissues in the body
• Recognize example structures of epithelial tissue in organs+ Show more

Learning Objectives

• Explain the steps of a design cycle and how feedback leads to design improvement.
• Identify requirements and constraints in an engineering problem and connect them to evaluation criteria.
• Use evidence from testing to refine a solution and justify changes in a design.

Learning Objectives

• Differentiate heat transfer from work transfer as two distinct pathways for energy movement.
• Explain how energy changes in a system can be described as coming from or going to surroundings through heat and/or work.
• Apply heat and work ideas to physical and chemical changes using correct scientific reasoning.

Learning Objectives

• Differentiate elements, compounds, and mixtures using macroscopic observations and compositional criteria
• Define pure substances as having fixed composition and mixtures as having variable composition
• Interpret and use symbols and formulas to represent elements and compounds (e.g., O, NaCl)+ Show more

Learning Objectives

• Understand the concepts of primary and secondary succession in ecosystems.
• Identify factors influencing succession dynamics and trajectories.
• Describe how species traits, dispersal, and disturbance regimes affect ecosystem recovery.+ Show more

Learning Objectives

• Explain how data, labeled diagrams, and reasoning work together to communicate design decisions.
• Use evidence from testing to justify redesign changes and address trade-offs.
• Summarize results in a way that compares performance to requirements and acknowledges uncertainty.

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks transform through interconnected rock-cycle processes.
• Identify the energy sources and rates that drive rock-cycle transitions, including melting, crystallization, weathering, erosion, deposition, and metamorphism.
• Describe how plate tectonics influences rock-cycle pathways through uplift, burial, and igneous intrusion.+ Show more

Learning Objectives

• Understand how device systems are composed of interacting parts that serve specific functions.
• Identify and map inputs, outputs, energy transfers, and material flows within device systems.
• Explain the importance of system boundaries and how constraints affect device performance.+ Show more

Learning Objectives

• Explain phase changes using energy transfer (kinetic vs. potential energy) and particle motion.
• Interpret qualitative heating and cooling curves, including temperature plateaus and latent heat.
• Relate specific phase transitions (melting, vaporization, sublimation, condensation) to characteristic temperatures without changing chemical identity.

Learning Objectives

• Understand the concept of evidence chains and their role in scientific reasoning.
• Identify basic components involved in linking observations to scientific claims.
• Recognize the importance of clarity, sufficiency, and consistency in evidence.+ Show more

Learning Objectives

• Understand what constitutes relevant evidence in scientific claims.
• Identify patterns in data that support or weaken claims.
• Evaluate alternative explanations based on evidence.+ Show more

Learning Objectives

• Understand the structure and function of nephrons in renal regulation.
• Explain how hormonal feedback mechanisms control kidney function and blood pressure.
• Identify the roles of key hormones like antidiuretic hormone and the renin-angiotensin-aldosterone system.+ Show more

Learning Objectives

• Explain the relationship between power, energy transfer, and time using real-world examples.
• Calculate or interpret efficiency as the fraction of input energy converted to useful output.
• Identify common sources of energy loss and describe how design choices affect operational performance.

Learning Objectives

• Explain why chemical equations must be balanced to conserve atoms during a reaction.
• Use coefficients and subscripts to determine how many atoms of each element appear on both sides of an equation.
• Apply balancing strategies to write correct balanced chemical equations, including state symbols.

Learning Objectives

• Identify claims, evidence, and reasoning within scientific texts
• Analyze how coherence and relevance strengthen scientific arguments
• Evaluate the role of quantitative evidence and model comparisons+ Show more

Learning Objectives

• Understand the role of hormones in regulating physiological processes.
• Identify feedback loops involved in glucose homeostasis.
• Describe hormone synthesis, transport, and cellular effects.+ Show more

Learning Objectives

• Understand how energy flows through food chains in ecosystems.
• Identify the different roles of producers, consumers, and decomposers.
• Describe how matter cycles through living organisms and the environment.+ Show more

Learning Objectives

• Define power as the rate of energy transfer or work per unit time.
• Calculate average and instantaneous power in mechanical contexts.
• Understand the concept of mechanical efficiency and how it relates to energy losses.+ Show more

Learning Objectives

• Describe how different organelles coordinate to facilitate cellular functions.
• Explain the pathways of genetic information flow within a cell.
• Identify the roles of mitochondria, lysosomes, and the Golgi apparatus in maintaining cellular homeostasis.+ Show more

Learning Objectives

• Understand the different systems involved in maintaining body temperature
• Identify physiological responses to cold and hot environments
• Explain how feedback loops regulate thermoregulation

Learning Objectives

• Explain how energy moves between trophic levels and why transfer efficiency differs among organisms.
• Interpret biomass trends to evaluate the effects of trophic transfers on producer and consumer populations.
• Use evidence such as nutrient concentrations and decomposition to describe how matter cycles continue in ecosystems.+ Show more

Learning Objectives

• Explain Newton’s First Law using the idea of inertia and the relationship between net external force and changes in motion.
• Distinguish between an object at rest and an object moving at constant velocity in terms of net external force.
• Identify examples of static and dynamic equilibrium where balanced forces produce no net change in motion.+ Show more

Learning Objectives

• Understand the conservation of matter in chemical reactions
• Identify reactants and products in chemical equations
• Learn the importance of balancing chemical equations+ Show more

Learning Objectives

• Explain how net force is found by vector addition of forces and how its direction relates to acceleration.
• Determine motion outcomes (accelerate, decelerate, or remain in equilibrium) using net force and friction/air resistance.
• Solve and interpret quantitative net force and acceleration relationships for real-world Alberta scenarios.

Learning Objectives

• Understand the importance of proper device ratings for safe electrical systems.
• Identify safety measures necessary for residential wiring.
• Recognize different electrical device functions and appropriate protective measures.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Define unbalanced forces and differentiate them from balanced forces.
• Explain how net force influences the motion of objects.
• Identify real-world examples of unbalanced forces.+ Show more

Learning Objectives

• Explain how electrons fill energy levels and orbitals using electron configuration rules.
• Identify valence electrons and predict how they affect reactivity and ion formation.
• Use electron configuration ideas to connect periodic trends (atomic size and ionization energy) to shell structure.

Learning Objectives

• Classify chemical reactions into synthesis, decomposition, single displacement, double displacement, and combustion categories
• Connect each reaction category to typical reactant patterns and characteristic products
• Use particle/bond/ion ideas to predict likely products and check consistency with redox trends

Learning Objectives

• Explain how gravitational interactions between the Moon and Sun, along with orbital motion effects, create tides
• Differentiate spring tides and neap tides based on the alignment of the Moon and Sun
• Analyze how local coastline shape, ocean depth, and resonant basins influence tidal range and current speed+ Show more

Learning Objectives

• Describe how photosynthesis converts light energy into chemical energy in chloroplasts.
• Identify the inputs and outputs of the light-dependent reactions and the Calvin cycle.
• Explain how compartmentalization within chloroplasts supports ATP and NADPH production and use.+ Show more

Learning Objectives

• Identify common sources of uncertainty in scientific measurements and models.
• Explain how experimental error and model limitations affect confidence in results.
• Distinguish between true values, observed values, and the role of uncertainty ranges.

Learning Objectives

• Interpret displacement–time, velocity–time, and acceleration–time graphs by relating slope and area to physical meaning
• Use graphing conventions (axis choice, labels, units) to compare different motion profiles
• Explain how changing acceleration appears on graphs, including curved segments and direction changes

Learning Objectives

• Explain how simple machines transfer forces to reduce effort or change the direction of a force
• Compare ideal mechanical advantage (IMA) and practical mechanical advantage (PMA) using friction and support geometry
• Use the relationships between input force, load, and displacement to predict which machine provides an advantage+ Show more

Learning Objectives

• Explain the processes of transcription and translation in gene expression.
• Identify the roles of key molecules such as DNA, mRNA, tRNA, and ribosomes.
• Describe how regulation influences gene expression at different stages.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Explain how plate convergence and continental collision can fold, thicken, and uplift crust to form mountains.
• Identify key mechanisms of mountain building, including thrust faulting, crustal shortening, and magmatic intrusion.
• Describe how weathering and erosion transport sediments and how rock and structure patterns reveal tectonic history.

Learning Objectives

• Differentiate divergent, convergent, and transform plate boundaries based on plate motion and typical landforms.
• Explain how each boundary type relates to earthquakes, volcanism, and crustal deformation.
• Use spatial patterns of trenches, ridges, arcs, and fault zones to infer boundary processes over geologic time.

Learning Objectives

• Explain mechanical advantage as a ratio of load force to input force and connect it to how machines move loads.
• Calculate and interpret mechanical advantage for lever and pulley systems, noting the force–distance trade-off.
• Use real-world examples (e.g., bale lifters and scaffold hoists) to predict how design choices affect safety and required input effort.

Learning Objectives

• Understand the process of chemical reactions.
• Identify reactants and products in chemical equations.
• Learn how bonds break and form during reactions.+ Show more

Learning Objectives

• Distinguish producers, consumers, and decomposers and explain their roles in energy transfer and nutrient cycling
• Interpret food chains and food webs to describe how energy flows through trophic levels
• Explain trophic efficiency and trophic cascades and how they affect biomass distribution and ecosystem productivity