Grade 9 Science Worksheets

Learning Objectives

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

Learning Objectives

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

Learning Objectives

• Interpret pedigrees using standardized symbols and relationship patterns across generations
• Differentiate autosomal dominant, autosomal recessive, X-linked, and mitochondrial inheritance using affected and carrier information
• Apply probability reasoning from pedigrees to estimate risk for relatives

Learning Objectives

• Explain how collision frequency, activation energy, and reaction pathways determine reaction rate.
• Use rate laws and reaction order to predict how changes in concentration affect reaction speed.
• Interpret energy profiles and transition-state ideas to connect microscopic collisions to macroscopic rate measurements.

Learning Objectives

• Identify the basic parts of a cell.
• Describe the functions of different cell organelles.
• Understand how cell structure relates to its function.

Learning Objectives

• Explain how the fossil record supports gradual evolution over time
• Describe how homologous structures provide evidence of shared ancestry
• Use genetic (DNA) comparisons to justify relatedness among species+ Show more

Learning Objectives

• Explain how epithelial tissue structure supports protection and selective exchange
• Describe how connective tissue extracellular matrix and blood support transport and strength
• Connect muscle and nervous tissue microscopic organization to their physiological roles

Learning Objectives

• Interpret multiple lines of evidence (fossils, comparative anatomy, biogeography, and molecular data) for descent with modification.
• Explain how natural selection, genetic drift, gene flow, and mutation can change allele frequencies over short and long timescales.
• Use evidence-based reasoning to evaluate real-world scenarios such as antibiotic resistance and adaptation to changing environments.

Learning Objectives

• Explain how power relates to the rate of energy transfer in everyday and engineering systems
• Calculate and interpret efficiency as the fraction of input energy converted to useful output
• Identify major sources of energy loss and describe how they affect operational limits and design trade-offs

Learning Objectives

• Explain what fitness means in terms of survival and reproduction relative to other individuals
• Describe how natural selection depends on environmental conditions and heritable traits
• Use the idea of conditional fitness to predict how advantages can change when the environment changes+ Show more

Learning Objectives

• Understand how iteration uses test evidence to refine solutions.
• Explain the connection between the design cycle and iterative improvements.
• Identify examples of modifications made during iterative testing to improve performance.+ Show more

Learning Objectives

• Explain the importance of defining problems in engineering design
• Identify key criteria and constraints for designing solutions
• Understand how scientific principles guide design choices+ Show more

Learning Objectives

• Evaluate how transitions between energy systems affect greenhouse gas emissions using life-cycle and scenario thinking.
• Compare reliability, affordability, and emissions-reduction trade-offs when integrating renewables and storage.
• Explain how grid capacity and air-quality considerations change with shifting electricity mixes.

Learning Objectives

• Differentiate physical changes from chemical changes using observable evidence such as color, temperature, texture, and product formation
• Identify physical properties and chemical properties of matter and explain how they relate to observed behavior
• Predict whether a described process is likely physical or chemical based on evidence and particle-level reasoning+ Show more

Learning Objectives

• Explain how inherited adaptations increase fitness in specific environments
• Describe how natural selection can change allele frequencies at the population level over time
• Use evidence to connect environmental pressures to changes in traits+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy and their mathematical relationships.
• Apply the work-energy principle to analyze mechanical systems involving motion and height.
• Explain the role of power as the rate of energy transfer in mechanical processes.+ Show more

Learning Objectives

• Explain how evidence chains link observations, quantitative analysis, and models to explanatory claims.
• Evaluate whether evidence is sufficient and consistent using multiple representations (graphs, summaries, diagrams).
• Identify how to handle competing explanations by comparing the full chain of inference.

Learning Objectives

• Understand the principles of light microscopy.
• Recognize the components and functions of a light microscope.
• Describe the differences between magnification, resolution, and contrast.

Learning Objectives

• Explain how environmental chemical changes can be interpreted using observable evidence and particle/atomic ideas.
• Apply the idea of mass conservation and clear system boundaries to environmental chemical problems.
• Relate chemistry concepts to Alberta-relevant contexts such as acid deposition, tailings chemistry, and nutrient cycling.

Learning Objectives

• Calculate kinetic energy and gravitational potential energy and relate them to mechanical energy in real situations.
• Explain how work and power are connected to energy transfer and energy conservation.
• Interpret how friction and other non-conservative forces change a mechanical energy budget.

Learning Objectives

• Explain how occurrence, frequency, and consequences are used to assess natural hazard risk.
• Interpret hazard information using concepts such as exposure, vulnerability, and cascading system effects.
• Connect historical records and return periods to probabilistic hazard reasoning.+ Show more

Learning Objectives

• Describe major asexual reproduction mechanisms (binary fission, budding, spore formation, and vegetative propagation).
• Explain genetic consequences of cloning during asexual reproduction.
• Analyze why asexual strategies may spread quickly in stable environments and why they may be risky when conditions change.+ Show more

Learning Objectives

• Explain how quantitative and qualitative criteria are used to compare competing design solutions.
• Use a comparative matrix to justify a selection based on performance metrics, cost, manufacturability, and environmental impact.
• Evaluate uncertainty by checking how results change when assumptions or parameters shift.

Learning Objectives

• Explain how unequal heating by the Sun creates temperature and pressure differences that drive atmospheric circulation.
• Describe how energy transfer between Earth’s surface and the atmosphere influences humidity, clouds, and precipitation.
• Connect local weather patterns to interactions among temperature, humidity, and Earth–atmosphere energy balance.

Learning Objectives

• Identify how epithelial tissue structure supports its barrier and selective exchange functions
• Explain how cell shape, tight junctions, and surface specializations affect permeability
• Use tissue structure–function vocabulary to answer questions about physiological roles

Learning Objectives

• Explain how lunar phases form from the geometry of the Earth–Moon–Sun system.
• Distinguish solar vs. lunar eclipses and classify partial, total, and annular eclipses.
• Describe why eclipses do not occur every month, using orbital nodes and orbital inclination.+ Show more

Learning Objectives

• Explain how cell membranes regulate transport of nutrients and wastes to support homeostasis
• Describe how cellular energy use (ATP and chemical reactions) helps cells build structures and grow
• Use evidence such as uptake rates and growth patterns to connect cellular structure to cell function

Learning Objectives

• Explain how promoters, enhancers, silencers, and transcription factors control gene transcription.
• Describe how epigenetic modifications (DNA methylation and histone acetylation) change chromatin accessibility.
• Analyze how regulatory networks and feedback loops fine-tune gene expression in response to signals.

Learning Objectives

• Explain how DNA stores genetic information and how genes are organized on chromosomes within cells.
• Describe how chromosomes are passed to offspring during cell division to maintain inherited genetic instructions.
• Connect mutations in DNA to differences in traits among individuals.

Learning Objectives

• Explain Newton’s three laws using force, motion, and mass (inertia).
• Use action–reaction pairs to predict how interacting objects move.
• Apply Newton’s laws to real situations such as snowplows, recoil, and anchoring.

Learning Objectives

• Explain how greenhouse gases affect the flow of energy in Earth’s atmosphere by absorbing and re-emitting infrared radiation.
• Describe how energy balance depends on absorption, re-emission, and the altitude where radiation escapes to space.
• Use evidence from the greenhouse effect to predict how changing greenhouse gas concentrations can change global temperature trends.

Learning Objectives

• Explain how dominant and recessive alleles affect observable traits
• Distinguish genotype from phenotype using Mendelian inheritance examples
• Use simple Punnett square logic to predict trait segregation and probabilities

Learning Objectives

• Explain how modulation and multiplexing encode signals onto carriers using amplitude, frequency, and phase changes
• Compare pulse-code modulation and analog amplitude modulation in terms of bandwidth and noise effects
• Use signal-encoding vocabulary to reason about fidelity and channel capacity

Learning Objectives

• Explain how molecular signaling pathways regulate gene expression and protein activity.
• Describe how receptor-ligand binding and signal transduction cascades connect to changes in cell behavior.
• Interpret how mutations or inhibitors can disrupt signaling and produce systemic physiological effects.

Learning Objectives

• Explain how the Moon and Sun create tidal forces on Earth’s oceans.
• Describe the difference between spring tides and neap tides.
• Predict how local geography and ocean basin features can change tidal range and currents.

Learning Objectives

• Understand how different organ systems coordinate during physical activity.
• Identify responses of respiratory, cardiovascular, and metabolic systems to exercise.
• Explain feedback loops and cross-regulation mechanisms that maintain homeostasis during exertion.+ Show more

Learning Objectives

• Explain how elements move among the atmosphere, hydrosphere, lithosphere, and biosphere in biogeochemical cycles
• Describe how processes such as photosynthesis, decomposition, nitrogen fixation, and weathering control nutrient availability
• Interpret cycle rates and reservoir sizes to predict system responses to disturbances

Learning Objectives

• Differentiate divergent, convergent, and transform plate boundaries by describing key processes and landforms.
• Relate boundary types to patterns of earthquakes, volcanism, and crustal deformation.
• Use diagrams or descriptions of plate motion to predict likely geologic features over time.

Learning Objectives

• Explain how insulin and glucagon respond to changes in blood glucose using negative feedback
• Identify the roles of beta cells, alpha cells, target tissues, set points, and effectors in glucose regulation
• Describe how glycogenolysis and gluconeogenesis help restore blood glucose when it drops

Learning Objectives

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

Learning Objectives

• Explain how a device can be viewed as a system with interacting parts that perform specific roles.
• Map a device system by identifying inputs, outputs, energy transfers, and material flow.
• Use system boundaries to determine what belongs inside a device model and what counts as outside constraints.+ Show more

Learning Objectives

• Analyze a complex mechanical situation by identifying internal forces, external forces, and which forces change motion.
• Use Newton’s laws and net force ideas to predict acceleration and changes in velocity for interacting bodies.
• Account for how energy transfers and dissipates across system components during an event.

Learning Objectives

• Define homeostasis and explain its importance in maintaining internal stability.
• Identify the main body systems involved in homeostasis.
• Describe how feedback mechanisms help regulate internal conditions.+ Show more

Learning Objectives

• Explain key molecular techniques used in biotechnology, such as PCR, gel electrophoresis, DNA sequencing, and CRISPR.
• Identify various applications of biotechnology in medicine, agriculture, forensic science, and synthetic biology.
• Discuss ethical, legal, and societal considerations related to biotech innovations.+ Show more

Learning Objectives

• Understand the factors that influence Earth's climate, including both natural and human-made drivers.
• Identify key components like solar energy, greenhouse gases, and ocean circulation that affect climate variability.
• Analyze how interactions among Earth's systems drive regional temperature and precipitation patterns.+ Show more

Learning Objectives

• Understand the structure of DNA and its role in inheritance.
• Describe the process of chromosomal segregation during meiosis.
• Explain how hereditary information is transmitted from parents to offspring.+ Show more

Learning Objectives

• Understand how the sun's energy heats the Earth's atmosphere unevenly
• Identify how temperature differences create wind and weather patterns
• Describe the role of the hydrosphere in weather formation+ Show more

Learning Objectives

• Explain how friction and drag act as opposing forces that reduce or change motion
• Use the idea of relative motion to predict how friction and drag affect acceleration
• Connect surface condition and normal force to friction, and speed to drag