Grade 9 Science Worksheets
6,485 worksheets
9th Grade Science | Force Laws Worksheet with Answer Key (PDF)
Learning Objectives
- Understand the inverse-square dependence of gravitational and electrostatic forces.
- Apply quantitative formulas to calculate forces between masses and charges.
- Analyze the direction of forces using vector principles.
$2.00
9th Grade Science | Field Dynamics Worksheet + Answer Key (Printable PDF)
Learning Objectives
- Understand the principles of electric and magnetic field vectors and their superposition.
- Describe forces on moving charged particles in magnetic fields and relate to real-world applications.
- Visualize field mapping using field lines and interpret their direction and magnitude.
$2.00
Grade 9 Science | Cellular Metabolism Worksheet & Answer Key (Printable PDF)
Learning Objectives
- Describe the biochemical pathways involved in cellular respiration, including glycolysis, citric acid cycle, and electron transport chain.
- Explain the role of ATP in energy transfer within cells.
- Relate the functions of mitochondria and chloroplasts to metabolic processes such as respiration and photosynthesis.
$2.00
9th Grade Science | Molecules and Lattices Worksheet & Answer Key(Printable PDF)
Learning Objectives
- Understand the differences between ionic lattices, covalent networks, and molecular solids.
- Identify how particle arrangement and electrical forces influence properties like melting point and conductivity.
- Relate observations of physical properties to lattice organization and interparticle forces.
$2.00
Grade 9 Science – Photosynthesis Overview Worksheet for Mastery
Learning Objectives
- Understand the basic process of photosynthesis and its significance.
- Identify the inputs, outputs, and main steps involved in photosynthesis.
- Explain how light energy is converted into chemical energy within chloroplasts.
$2.00
Grade 9 Science — Light Reactions Worksheet for Mastering Photosynthesis
Learning Objectives
- Explain the process of light reactions in photosynthesis.
- Identify the role of pigment complexes and photosystems.
- Describe how electron flow leads to ATP and NADPH production.
$2.00
Grade 9 Science – Glycolysis Overview Worksheet for Mastery
Learning Objectives
- Describe the key steps and intermediates involved in glycolysis.
- Explain the net energy gain from glycolysis, including ATP and NADH production.
- Differentiate between aerobic and anaerobic pathways following glycolysis.
$2.00
Grade 9 Science | Surface Processes Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the key surface processes that influence landform development.
- Explain how climate, relief, and lithology affect surface process rates and patterns.
- Analyze the relationship between surface processes and geomorphic change over various time scales.
$2.00
Grade 9 Science | Computational Modeling Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the role of mathematical models in system analysis and design.
- Apply basic computational methods to evaluate scenario outputs.
- Develop proficiency in using spreadsheets or simple coding for model parameter estimation.
$2.00
Grade 9 Science – Tectonic Forces Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the processes of seafloor spreading, subduction zones, and volcanic arc systems.
- Describe how mantle convection connects to surface features like mountain belts and ocean basins.
- Identify evidence such as seafloor magnetic anomalies and geologic cross-sections that support plate tectonics.
$2.00
Grade 9 Science | Framing Constraints Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the importance of problem framing in engineering design
- Identify key constraints such as social, economic, environmental, and safety factors
- Analyze interactions among competing constraints to support feasible solutions
$2.00
Grade 9 Science | Prototyping Methods Worksheet (PDF + Answer Key)
Learning Objectives
- Understand different prototyping methods and their appropriate applications in design projects.
- Identify suitable materials, fidelity levels, and testing protocols for various prototyping approaches.
- Evaluate performance metrics of prototypes and apply iterative refinement based on test data.
$2.00
Grade 9 Science | Reaction Optimization & Equilibrium Worksheet (PDF)
Learning Objectives
- Explain how temperature, pressure, concentration, and catalysts influence chemical reactions and their rates.
- Describe the principles of equilibrium and kinetics in reaction systems.
- Assess how reaction conditions can be optimized for yield, selectivity, and minimizing side reactions.
$2.00
Grade 9 Science | Cosmic Timescales Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the observational methods used to determine the age and expansion of the universe.
- Describe key cosmic measurements such as redshift, cosmic microwave background, and elemental abundances.
- Explain how these measurements establish a timeline of the universe from its origins to present.
$2.00
Grade 9 Science | Planetary Origins Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the formation process of the solar system from a protoplanetary disk.
- Identify key evidence supporting planetary formation theories such as meteorite composition and radiometric dating.
- Explain differences between inner rocky planets and outer gas giants based on gradients in volatile content.
$2.00
Grade 9 Science | Orbital Motion Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the principles governing planetary and satellite orbits based on Kepler's laws and Newton's law of gravitation.
- Analyze relationships between orbital period, semi-major axis, and escape velocity through examples such as Earth's Moon and artificial satellites.
- Describe the concepts of orbital resonance, perturbations, and their effects on the stability of celestial orbits.
$2.00
Grade 9 Science – Stellar Evolution Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the main stages of stellar evolution from star formation to terminal outcomes.
- Explain the role of Hertzsprung-Russell diagrams and spectral classification in understanding stars.
- Identify differences in stellar lifecycles based on mass and other properties.
$2.00
Grade 9 Science – Heat Quantification Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the concept of thermal energy transfer through conduction, convection, and radiation.
- Apply the formula Q = mcΔT to calculate heat transfer in various scenarios.
- Explain the sign conventions for heat flow and energy changes in closed systems.
$2.00
Grade 9 Science | Natural Selection Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the mechanisms by which heritable variation contributes to differential survival and reproduction
- Identify and explain examples of natural selection, such as beak morphology shifts and bacterial resistance
- Analyze models of fitness and allele frequency changes related to different types of selection
$2.00
Grade 9 Science | Phylogenetic Trees Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the construction and interpretation of phylogenetic trees to analyze evolutionary relationships.
- Identify shared derived characters and the methods used to build phylogenetic trees, such as parsimony and molecular distance.
- Explain how molecular clocks and dataset congruence support hypotheses of relatedness among species.
$2.00
Grade 9 Science – Evidence for Evolution Worksheet (PDF + Answer Key)
Learning Objectives
- Identify the key types of empirical evidence that support the theory of evolution.
- Explain how fossil records, comparative anatomy, and molecular sequences provide evidence for common ancestry.
- Understand the significance of transitional fossils, homologous structures, and DNA similarities among species.
$2.00
Grade 9 Science | Human Impacts Worksheet (PDF + Answer Key)
Learning Objectives
- Understand how land-use change, invasive species, pollution, and resource extraction impact biodiversity and ecosystems.
- Interpret empirical data from case studies like deforestation and coral reef degradation to evaluate ecological consequences.
- Assess trade-offs among conservation efforts, provisioning services, and socioecological outcomes.
$2.00
Grade 9 Science | Energy Systems Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the transition pathways of energy systems and their decarbonization strategies.
- Analyze life-cycle greenhouse gas emissions of different energy technologies.
- Evaluate the trade-offs in energy system decisions related to reliability, affordability, and environmental impact.
$2.00
Grade 9 Science | Decision Modeling in Climate Policies Worksheet (PDF)
Learning Objectives
- Understand the application of systems and decision models in evaluating climate mitigation and adaptation strategies.
- Analyze how economic, environmental, and social variables influence policy decisions using scenario analysis and assessment approaches.
- Evaluate trade-offs among greenhouse gas reduction, public health, and economic development through cost-benefit and lifecycle assessments.
$2.00
Grade 9 Science | Electromagnetic Radiation Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the wave and photon models of electromagnetic radiation and their relationship to frequency and energy.
- Describe characteristic phenomena such as atomic emission lines, absorption, and spectral attenuation.
- Apply Planck’s relation and wavelength-dependent properties to evaluate signal penetration and scattering.
$2.00
Grade 9 Science | The Rock Cycle Worksheet (Printable PDF + Answer Key)
Learning Objectives
- Describe the processes involved in the transformation of rocks within the rock cycle.
- Identify geological settings associated with different rock-forming processes.
- Explain how physical and chemical mechanisms drive material changes in rocks.
$2.00
Grade 9 Science | Mendelian Patterns Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the basic principles of Mendelian inheritance, including dominant and recessive allele interactions.
- Explain segregation and independent assortment using Punnett square analysis.
- Interpret pedigrees to determine inheritance patterns.
$2.00
Grade 9 Science – Inheritance Basics Worksheet (PDF + Answer Key)
Learning Objectives
- Understand how DNA replication and chromosomal segregation contribute to inheritance.
- Identify the roles of gametes and zygotes in hereditary information transfer.
- Describe observable phenomena such as karyotype patterns and transmission ratios in pedigrees.
$2.00
Grade 9 Science | Representation Models Worksheet (Printable PDF + Answer Key)
Learning Objectives
- Describe different types of models used in scientific representation, including mathematical, graphical, schematic, and computational approaches.
- Evaluate criteria such as fidelity, simplicity, and predictive scope to select appropriate models for specific systems.
- Explain how mapping model components to measurable observables supports interpretation and understanding.
$2.00
Grade 9 Science | Land Sustainability Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the impacts of land and water interactions on ecosystem health and productivity.
- Identify sustainable land use practices such as soil conservation and watershed management.
- Analyze trade-offs among agricultural productivity, biodiversity, and water resource management.
$2.00
Grade 9 Science | Trophic Dynamics Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the flow of energy through different trophic levels in an ecosystem.
- Explain the structure and function of food webs and trophic pyramids.
- Analyze how energy transfer efficiency affects biomass distribution and ecosystem productivity.
$2.00
Grade 9 Science | Producers and Consumers Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the roles of producers and consumers in energy transfer within ecosystems.
- Analyze how photosynthesis and cellular respiration impact carbon and oxygen cycling.
- Evaluate factors that affect net primary productivity and biomass accumulation.
$2.00
Grade 9 Science | Population Regulation Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the factors that influence population growth and size, including carrying capacity, predation, competition, and resource availability.
- Analyze mathematical models such as logistic growth and predator-prey cycles to understand population dynamics.
- Evaluate the impact of human activities on natural populations and discuss conservation strategies related to population regulation.
$2.00
Grade 9 Science | Seismic Signals Worksheet (Worksheet + Answer Key) – Ontario Standards
Learning Objectives
- Understand the types and propagation characteristics of seismic waves.
- Explain how earthquake focal mechanisms reveal fault types and stress orientations.
- Relate seismic wave travel times to Earth's interior structure and methods for locating epicentres.
$2.00
Grade 9 Science | Cosmic Timescales Worksheet (PDF + Answer Key) for NGSS
Learning Objectives
- Understand the observational methods used to determine the age of the universe.
- Identify key astronomical phenomena that define cosmic timescales.
- Describe the significance of cosmic microwave background measurements in cosmology.
$2.00
Grade 9 Science – Newtonian Motion Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the relationship between net force, mass, and acceleration as described by Newton's second law.
- Interpret free-body diagrams to analyze forces acting on objects in motion.
- Apply vector decomposition techniques to solve problems involving force components and predict motion trajectories.
$2.00
Grade 9 Science | Signal Encoding Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the principles of signal encoding through modulation and multiplexing.
- Compare different encoding schemes such as pulse-code modulation and amplitude modulation.
- Evaluate the impact of encoding choices on bandwidth, fidelity, and noise susceptibility.
$2.00
Grade 9 Science | Climate Drivers Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the key factors influencing Earth's climate, including solar flux, albedo, greenhouse gases, and ocean heat transport.
- Interpret data and models related to Earth's energy budget and surface-atmosphere interactions.
- Analyze how variations in climate drivers lead to phenomena such as ice-sheet changes, El Niño events, and seasonal monsoons.
$2.00
Grade 9 Science | Natural Hazards Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the types of natural hazards such as landslides, volcanic eruptions, tsunamis, floods, and severe storms.
- Analyze how geologic and atmospheric indicators are used to assess hazard origin, frequency, and potential impacts.
- Evaluate the spatial patterns, triggering mechanisms, and feedback systems involved in natural hazard events.
$2.00
Grade 9 Science – Force Laws Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the inverse-square relationship in gravitational and electrostatic forces.
- Apply mathematical formulas to calculate magnitudes and directions of forces between objects.
- Differentiate between gravitational and electrostatic force interactions.
$2.00
Grade 9 Science | Field Dynamics Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the characteristics of electric and magnetic fields using field vectors and field lines.
- Explain the concept of superposition of electric and magnetic fields and how they affect moving charges.
- Analyze forces on charged particles in magnetic fields, including curvature of trajectories and deflection phenomena.
$2.00
Grade 9 Science | Collision Safety Worksheet (PDF + Answer Key)
Learning Objectives
- Understand how impulse and force-time tradeoffs are used in engineering design to reduce collision impacts.
- Identify materials and structures used in safety features such as crumple zones, airbags, helmets, and padding.
- Analyze force‑time graphs to evaluate the effectiveness of different collision mitigation strategies.
$2.00
Grade 9 Science | Rock Cycle Processes Worksheet (PDF + Answer Key)
Learning Objectives
- Describe the main processes involved in the rock cycle, including melting, crystallization, erosion, deposition, sedimentation, and metamorphism.
- Identify examples of rocks formed through various cycle pathways, such as basalt from partial melting and sandstone from sediment deposition.
- Explain how pressure, temperature, and radiometric age data constrain the temporal sequence of rock transformations.
$2.00
Grade 9 Science – System Hierarchy Worksheet (PDF + Answer Key)
Learning Objectives
- Explain the organization of biological systems from cells to organism-wide systems.
- Identify key examples of how different systems interact to perform vital physiological functions.
- Describe the structural specialization of tissues and organs within organ systems.
$2.00
Grade 9 Science | Human Influence Worksheet (PDF + Answer Key)
Learning Objectives
- Explain how historical atmospheric carbon dioxide records and land-use changes illustrate human impacts on the climate.
- Identify key evidence linking fossil fuel combustion, deforestation, and urbanization to climate change and ecosystem disruption.
- Analyze observed indicators such as the Keeling Curve and satellite data to understand anthropogenic effects on the biosphere and hydrosphere.
$2.00
Grade 9 Science | Integrated Physiology Worksheet (PDF + Answer Key)
Learning Objectives
- Describe how molecular and cellular interactions contribute to organ system functions.
- Analyze clinical exemplars such as cystic fibrosis, heart failure, and metabolic syndrome to connect genetic and physiological factors.
- Interpret biochemical assays, histology, and organ function metrics to explain organismal health and disease.
$2.00
Grade 9 Science – Energy Conservation Worksheet (PDF + Answer Key)
Learning Objectives
- Understand the concept of energy conservation in closed and open systems.
- Recognize how energy transfer is represented using diagrams and mathematical models.
- Analyze energy reservoirs and verify constancy of energy in isolated systems.
$2.00
Grade 9 Science | Resource Choices Worksheet (PDF + Answer Key)
Learning Objectives
- Evaluate different energy and mineral resource options considering environmental impacts, costs, and sustainability.
- Analyze how resource extraction methods affect ecosystems, land use, and water resources in regional contexts.
- Compare the life-cycle trade-offs of renewable and nonrenewable resources including environmental, economic, and social factors.
$2.00
About Grade 9 Science Worksheets
Find Science worksheets built for Grade 9. All 6,485 cover core skills, practice, and review, each an instant PDF download.
Every worksheet on MyTeachingSheets is created by independent teacher-authors and reviewed before publication. All resources download as printable PDFs for classroom, homework, or at-home practice, and many include answer keys. Preview any worksheet free before buying.