Grade 8 Science Worksheets

5,548 worksheets
Grade 8 Science | Stored Energy Worksheet & Answer Key (NGSS Aligned)

Grade 8 Science | Stored Energy Worksheet & Answer Key (NGSS Aligned)

Compass LearningCompass Learning·ScienceGrade 8

Learning Objectives

  • Understand the concept of potential energy stored through objects interacting at a distance, including gravitational, elastic, and magnetic energy.
  • Identify how changes in the relative positions of objects affect their stored energy and the work done during these changes.
  • Apply the principles of stored energy to real-world systems such as springs, elevated masses, and magnets.
$2.00
Grade 8 Science | Scale and Patterns in the Solar System Worksheets (PDF)

Grade 8 Science | Scale and Patterns in the Solar System Worksheets (PDF)

Compass LearningCompass Learning·ScienceGrade 8

Learning Objectives

  • Understand and interpret scale relationships among solar system objects using quantitative data.
  • Compare diameters, distances, and orbital periods of planets, dwarf planets, and moons.
  • Use astronomical units and relative scaling to analyze spatial and temporal patterns.
$2.00
Grade 8 Science | Orbital Cycles Worksheet with Answer Key (NGSS-Aligned)

Grade 8 Science | Orbital Cycles Worksheet with Answer Key (NGSS-Aligned)

Compass LearningCompass Learning·ScienceGrade 8

Learning Objectives

  • Explain the relative positions and motions of Earth, the Moon, and the Sun that lead to lunar phases, eclipses, and seasons.
  • Describe the geometric and axial factors responsible for cyclic phenomena observed from Earth.
  • Relate observable sky patterns and calendar cycles to the orbital relationships of celestial bodies.
$2.00
Grade 8 Science | Ecosystem Models Worksheet + Answer Key for NGSS Alignment

Grade 8 Science | Ecosystem Models Worksheet + Answer Key for NGSS Alignment

Compass LearningCompass Learning·ScienceGrade 8

Learning Objectives

  • Understand the components of ecosystem models, including biotic and abiotic factors.
  • Interpret how energy and nutrient flows propagate through ecosystems using stock-and-flow diagrams.
  • Evaluate the influence of boundaries, scale, and variables in representing resource pools and trophic connections.
$2.00
Grade 8 Science – Inclined Planes Worksheet (PDF) | Ontario Standards

Grade 8 Science – Inclined Planes Worksheet (PDF) | Ontario Standards

Prism Point LearningPrism Point Learning·ScienceGrade 8

Learning Objectives

  • Describe how inclined planes reduce input force using mechanical advantage.
  • Calculate ideal and actual mechanical advantage for ramps and wedges.
  • Explain how surface finish and friction influence force requirements during inclined plane use.
$2.00
Grade 8 Science | Climate Circulation Worksheet (Answer Key) for NGSS Alignment

Grade 8 Science | Climate Circulation Worksheet (Answer Key) for NGSS Alignment

Compass LearningCompass Learning·ScienceGrade 8

Learning Objectives

  • Explain the main atmospheric circulation cells and their roles in distributing heat around the planet.
  • Describe how ocean currents like gyres and thermohaline circulation influence regional climates.
  • Analyze the connection between circulation patterns like trade winds, monsoons, and El Niño with climate variability.
$2.00
8th Grade Science | Climate Circulation Worksheet & Answer Key PDF

8th Grade Science | Climate Circulation Worksheet & Answer Key PDF

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Describe the fundamental models of atmospheric and oceanic circulation such as Hadley, Ferrel, and polar cells.
  • Explain how Coriolis effect influences wind patterns and ocean currents.
  • Identify how circulation patterns relate to regional climates, including trade winds, monsoons, and ocean gyres.
$2.00
8th Grade Science | Natural Hazards Worksheet & Answer Key (Printable PDF)

8th Grade Science | Natural Hazards Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Analyze and interpret data related to natural hazards such as earthquakes, volcanoes, and tsunamis.
  • Understand the techniques used to assess hazard recurrence intervals and spatial distribution.
  • Evaluate the impacts of natural hazards and the importance of monitoring, modeling, and forecasting.
$2.00
8th Grade Science Worksheet | Plate Movements & Tectonic Theory (PDF & Answer Key)

8th Grade Science Worksheet | Plate Movements & Tectonic Theory (PDF & Answer Key)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the mechanisms behind plate tectonics and how they shape landforms.
  • Identify the processes of subduction, rifting, continental collision, and uplift.
  • Interpret evidence from seafloor spreading, magnetic striping, and paleomagnetic records.
$2.00
Grade 8 Science | Water Cycle Worksheet & Answer Key for Classroom Practice

Grade 8 Science | Water Cycle Worksheet & Answer Key for Classroom Practice

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Describe the processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
  • Explain how the water cycle is driven by sunlight and gravity.
  • Connect the water cycle to natural weathering processes such as river incision, karst formation, and coastal erosion.
$2.00
Grade 8 Science | Climate Drivers Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Climate Drivers Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the different drivers influencing global temperature changes.
  • Analyze evidence from paleoclimate and modern records to identify causal factors.
  • Assess the role of natural versus human activities in climate change.
$2.00
8th Grade Science Worksheet | Population Effects Practice & Answer Key PDF

8th Grade Science Worksheet | Population Effects Practice & Answer Key PDF

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Analyze how population growth influences resource consumption and Earth's system changes.
  • Evaluate evidence linking demographic and consumption patterns to climate, water, and biodiversity impacts.
  • Synthesize data and cause–effect reasoning regarding environmental changes due to human activity.
$2.00
Grade 8 Science Worksheet | Resource Distribution & Geology Practice PDF

Grade 8 Science Worksheet | Resource Distribution & Geology Practice PDF

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand geological processes like plate tectonics, sedimentation, and metamorphism that influence resource formation.
  • Identify different types of resource reservoirs such as coal basins, oil traps, and aquifers.
  • Analyze how resource accessibility and quality vary based on geological and structural factors.
$2.00
8th Grade Science | Common Ancestry Worksheet with Answer Key (Printable PDF)

8th Grade Science | Common Ancestry Worksheet with Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Analyze fossil, anatomical, embryological, and molecular evidence to understand evolutionary relationships.
  • Identify and interpret patterns of unity and diversity across different data types over deep time.
  • Explain the significance of transitional fossils, homologous structures, and DNA sequence similarities in evolution.
$2.00
8th Grade Science | Natural Selection Worksheet with Answer Key (Printable PDF)

8th Grade Science | Natural Selection Worksheet with Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain how heritable variation and environmental pressures influence natural selection.
  • Identify examples of adaptive traits and how they change in populations over generations.
  • Describe the roles of selective agents such as predators, climate, and disease in shaping populations.
$2.00
8th Grade Science | Mendelian Patterns Worksheet & Answer Key (Printable PDF)

8th Grade Science | Mendelian Patterns Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain how allele combinations produce observable traits through Mendelian inheritance.
  • Identify dominant and recessive allele interactions in traits.
  • Predict genotype and phenotype ratios using Punnett squares.
$2.00
Grade 8 Science | Ecosystem Models Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Ecosystem Models Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the components and functions of ecosystem models, including biotic and abiotic factors.
  • Identify how resource flows and feedback mechanisms are represented in system diagrams.
  • Interpret how changes in one part of an ecosystem model affect other components over time.
$2.00
Grade 8 Science | Matter Cycles Worksheet + Answer Key (Printable PDF)

Grade 8 Science | Matter Cycles Worksheet + Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain how matter cycles through ecosystems via processes such as photosynthesis, respiration, decomposition, and nutrient transformations.
  • Trace atoms of carbon and water through various forms and reservoirs in biological and abiotic components of ecosystems.
  • Understand the conservation of mass within biological processes and distinguish between molecular forms of matter.
$2.00
8th Grade Science | Population Change Worksheet & Answer Key (Printable PDF)

8th Grade Science | Population Change Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Analyze how biotic and abiotic factors influence population dynamics.
  • Identify concepts such as carrying capacity, feedback mechanisms, and limiting factors.
  • Interpret population graphs and trends in birth and death rates.
$2.00
8th Grade Science | Electric Magnetism Worksheet & Answer Key (Printable PDF)

8th Grade Science | Electric Magnetism Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain the relationship between electric charges and Coulomb's law.
  • Describe how magnetic forces depend on pole strength, orientation, and distance.
  • Identify examples of electric and magnetic interactions in real-world scenarios.
$2.00
8th Grade Science Worksheet | Gravitational Interactions + Answers (Printable)

8th Grade Science Worksheet | Gravitational Interactions + Answers (Printable)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the universal nature of gravity and how it depends on mass and distance.
  • Explain the inverse-square pattern of gravitational force.
  • Describe manifestations of gravity such as planetary orbits, satellite motion, and tidal effects.
$2.00
Grade 8 Science | Energy Conservation Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Energy Conservation Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the principles of energy transfer and conservation in physical systems.
  • Identify examples of energy transformations in real-world scenarios.
  • Explain the concept of energy tracking across system boundaries during collisions and other processes.
$2.00
Grade 8 Science Worksheet | Gravity and Motion NGSS Practice PDF & Answer Key

Grade 8 Science Worksheet | Gravity and Motion NGSS Practice PDF & Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain the role of gravity in governing motions within the solar system and galaxies.
  • Describe the concepts of orbital trajectories, mutual gravitational attraction, and centripetal acceleration.
  • Identify how gravitational balance produces elliptical orbits and orbital periods.
$2.00
8th Grade Science | Orbital Cycles Worksheet + Answer Key (PDF)

8th Grade Science | Orbital Cycles Worksheet + Answer Key (PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Articulate a coherent model of the Earth–Sun–Moon system that explains cyclic phenomena such as lunar phases and eclipses.
  • Understand the influence of relative positions, motions, axial tilt, and orbital geometry on observable sky patterns and calendar cycles.
  • Describe the timing and sequence of lunar phases, eclipses, and seasonal changes based on the Earth's and Moon's positions.
$2.00
Grade 8 Science | Scale and Patterns Worksheet PDF with Answer Key (NGSS)

Grade 8 Science | Scale and Patterns Worksheet PDF with Answer Key (NGSS)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Analyze scale relationships among solar system objects using quantitative data.
  • Interpret patterns in diameters, masses, distances, and orbital periods from datasets.
  • Compare relative sizes and distances of planets, dwarf planets, and major moons.
$2.00
Grade 8 Science Worksheet | Mass Conservation Lesson & Practice (PDF + Rubric)

Grade 8 Science Worksheet | Mass Conservation Lesson & Practice (PDF + Rubric)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the principle of mass conservation in chemical reactions within closed systems.
  • Track atoms at a microscopic level using particulate models and symbolic equations.
  • Explain how the total mass of reactants equals the mass of products when matter is neither added nor removed.
$2.00
8th Grade Science Worksheet | Energy Flow in Ecosystems with Answer Key

8th Grade Science Worksheet | Energy Flow in Ecosystems with Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain how energy enters and moves through ecosystems.
  • Identify the role of producers and consumers in energy transfer.
  • Understand the concept of energy loss as heat at each trophic level.
$2.00
Grade 8 Science Worksheet | Measuring Biodiversity – PDF & Answer Key

Grade 8 Science Worksheet | Measuring Biodiversity – PDF & Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand key concepts related to biodiversity including species richness, evenness, and indices.
  • Identify factors that influence biodiversity assessments in different environments.
  • Explain the importance of biodiversity for ecosystem stability and health.
$2.00
Grade 8 Science Worksheet | Species Interactions – PDF & Answer Key

Grade 8 Science Worksheet | Species Interactions – PDF & Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the different types of species interactions such as predation, competition, parasitism, mutualism, and commensalism.
  • Analyze how species interactions influence population dynamics and ecosystem stability.
  • Identify examples of each interaction type in real-world ecosystems.
$2.00
8th Grade Science Worksheet | Balancing Equations Practice PDF & Answer Key

8th Grade Science Worksheet | Balancing Equations Practice PDF & Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the concept of balancing chemical equations to obey the law of conservation of mass.
  • Learn how coefficients represent molar ratios of reactants and products.
  • Interpret the placement of coefficients without changing chemical formulas.
$2.00
Grade 8 Science – Global Distribution of Freshwater Resources Worksheet for Mastery

Grade 8 Science – Global Distribution of Freshwater Resources Worksheet for Mastery

The Resource HubThe Resource Hub·ScienceGrade 8

Learning Objectives

  • Understand the global distribution and proportions of freshwater and saline water reservoirs.
  • Identify the factors influencing the spatial patterns of freshwater distribution.
  • Recognize the limitations and challenges related to freshwater accessibility and regional water security.
$2.00
Grade 8 Science | Mixtures Versus Compounds Worksheet & Answer Key (PDF)

Grade 8 Science | Mixtures Versus Compounds Worksheet & Answer Key (PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Differentiate between mixtures and compounds based on their properties and formation.
  • Identify characteristics of mixtures and compounds through examples and observations.
  • Understand methods of separation for mixtures and the difficulty of separating compounds.
$2.00
Grade 8 Science | Observable Conservation Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Observable Conservation Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand the principle of conservation of mass through experimental observations.
  • Describe how mass appears unchanged in reactions within sealed systems.
  • Explain the significance of measuring reactants and products in conservation experiments.
$2.00
8th Grade Science | Particle Representations Worksheet & Answer Key ( PDF)

8th Grade Science | Particle Representations Worksheet & Answer Key ( PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how particle-level models depict atoms and molecules during reactions.
  • Describe how bond breaking and forming are represented with particle diagrams.
  • Translate microscopic particle interactions into macroscopic observations.
$2.00
Grade 8 Science Worksheet | Balanced Forces Practice with Answers(Printable PDF)

Grade 8 Science Worksheet | Balanced Forces Practice with Answers(Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Define balanced forces and explain their effects on objects.
  • Differentiate between static and dynamic equilibrium.
  • Identify real-world situations involving balanced and unbalanced forces.
$2.00
8th Grade Science | Distance-Time Graphs Worksheet & Answer Key (Printable PDF)

8th Grade Science | Distance-Time Graphs Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how distance-time graphs represent motion and interpret their slopes.
  • Calculate average speed using change in distance and change in time from graphs.
  • Analyze graph segments to identify periods of constant, increasing, or decreasing speed.
$2.00
Grade 8 Science Worksheet | Simple Machines Practice & Assessment PDF

Grade 8 Science Worksheet | Simple Machines Practice & Assessment PDF

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain the function of simple machines in redirecting force and increasing mechanical advantage.
  • Identify different types of simple machines and their components.
  • Describe energy transfer, work, and losses in simple machine systems.
$2.00
8th Grade Science Worksheet | Natural Hazards Practice and Assessment PDF

8th Grade Science Worksheet | Natural Hazards Practice and Assessment PDF

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Interpret data patterns, frequency, and magnitude of natural hazards to assess risks.
  • Explain how historical and instrumental records inform hazard forecasting and mitigation.
  • Analyze different types of hazard data for planning and infrastructure design.
$2.00
Grade 8 Science | Speed Fundamentals Worksheet with Answer Key (Printable PDF)

Grade 8 Science | Speed Fundamentals Worksheet with Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how speed quantifies how quickly an object covers distance over time.
  • Distinguish between constant speed and average speed.
  • Apply proportional reasoning to relate distance, speed, and time.
$2.00
Grade 8 Science Worksheet | Trip Analysis Practice PDF & Answer Key

Grade 8 Science Worksheet | Trip Analysis Practice PDF & Answer Key

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how to analyze motion composed of multiple segments with different speeds.
  • Calculate average speed from total distance and total time in non-uniform motion scenarios.
  • Apply proportional reasoning to segmental travel times and distances.
$2.00
Grade 8 Science | Cell Organization Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Cell Organization Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Define the levels of cellular organization in multicellular organisms.
  • Explain how similar cells combine to form tissues, and how tissues form organs.
  • Describe how organ systems work together to sustain life.
$2.00
8th Grade Science | Muscle Contraction Worksheet & Answer Key (Printable PDF)

8th Grade Science | Muscle Contraction Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Explain the process of muscle contraction at the cellular level.
  • Identify the roles of actin, myosin, ATP, and calcium in muscle contraction.
  • Describe how muscle structure influences contraction strength and speed.
$2.00
Grade 8 Science | Digestive System Integration Worksheet & Answer Key (PDF)

Grade 8 Science | Digestive System Integration Worksheet & Answer Key (PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Describe how mechanical and chemical processes work together in digestion
  • Identify tissue types involved in digestion and their functions
  • Explain how nutrients are transported through the circulatory system to cells
$2.00
8th Grade Science | Immune Defense Worksheet & Answer Key (Printable PDF)

8th Grade Science | Immune Defense Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Describe the components and functions of the innate and adaptive immune systems.
  • Identify cellular specializations involved in immune responses.
  • Explain the roles of lymphoid organs and circulatory pathways in immune defense.
$2.00
8th Grade Science Worksheet | Membrane Functions with Answer Key (Printable PDF)

8th Grade Science Worksheet | Membrane Functions with Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how cell membranes regulate exchange between the cell's interior and exterior environments.
  • Identify the roles of proteins, pumps, and vesicles in membrane transport processes.
  • Explain how membrane composition and surface area influence diffusion and cell signaling.
$2.00
Grade 8 Science | Nervous Coordination Worksheet & Answer Key (Printable PDF)

Grade 8 Science | Nervous Coordination Worksheet & Answer Key (Printable PDF)

Coral Reef LearningCoral Reef Learning·ScienceGrade 8

Learning Objectives

  • Understand how the nervous system transmits rapid signals through neurons.
  • Identify cellular features like myelination and synaptic vesicles that enhance signaling speed.
  • Describe how neuron networks control reflexes, movements, and gland secretions.
$2.00
Grade 8 Science – Density Principles Worksheet for Mastery | PDF + Answer Key

Grade 8 Science – Density Principles Worksheet for Mastery | PDF + Answer Key

The Resource HubThe Resource Hub·ScienceGrade 8

Learning Objectives

  • Understand the concept of density as a ratio of mass to volume.
  • Identify how density influences buoyancy and layering in fluids.
  • Calculate density using mass and volume measurements.
$2.00
Grade 8 Science – Models and Systems Worksheet for Mastery

Grade 8 Science – Models and Systems Worksheet for Mastery

The Resource HubThe Resource Hub·ScienceGrade 8

Learning Objectives

  • Understand the components, interactions, and properties within physical and ecological systems.
  • Identify the use of diagrams, models, and equations in representing and analyzing systems.
  • Describe energy and matter flows in food webs and chemical systems.
$2.00

About Grade 8 Science Worksheets

Explore Grade 8 Science worksheets for classwork, homework, or review. Our 5,548 printables download instantly as PDFs.

Each resource here is built by an independent educator and reviewed for quality. Worksheets print straight from PDF and suit classroom use, homework, or extra practice; most come with answer keys, and you can preview before purchasing.