Grade 8 Science Worksheets
5,548 worksheets
Grade 8 Science | Problem Definition Worksheet (NGSS & STEM) - PDF
Learning Objectives
- Understand the criteria and constraints involved in defining engineering problems.
- Identify measurable performance goals, safety, and environmental considerations.
- Analyze trade-offs between time, cost, and durability in problem scenarios.
$3.00
Grade 8 Science | Force & Motion Worksheets (Worksheet + Answer Key) PDF
Learning Objectives
- Understand how net force affects the change in motion of an object.
- Explain the relationship between mass, force, and acceleration.
- Predict how doubling force or tripling mass influences an object's movement.
$3.00
Grade 8 Science | Organ Formation Worksheet (PDF) for BC Standards
Learning Objectives
- Describe how different tissue types integrate to form organs.
- Explain how organ architecture reflects functional and mechanical needs.
- Identify examples of organs and their tissue components.
$3.00
Grade 8 Science | Moon Interactions Worksheet + Answer Key (PDF) – TEKS Aligned
Learning Objectives
- Describe the phases of the Moon and how their positions relate to lunar illumination.
- Explain the causes and conditions of solar and lunar eclipses based on orbital alignments.
- Understand tidal forces, including spring and neap tides, and how gravitational pull affects Earth's oceans.
$3.00
Grade 8 Science – Ecosystem Structure Worksheet (PDF) | TEKS Aligned & Engaging
Learning Objectives
- Describe the components and biomes of ecosystems and their abiotic factors.
- Explain the roles of producers, consumers, and decomposers in energy flow and nutrient cycling.
- Identify different biomes such as grassland, desert, and temperate forest based on climate and community composition.
$3.00
Grade 8 Science | Modeling Data Worksheet(Worksheet + Answer Key) -NGSS Aligned
Learning Objectives
- Understand the purpose and limits of physical and computational models in data generation.
- Identify key practices for consistent input conditions, repeatability, and data recording.
- Analyze examples of model applications such as wind-tunnel testing and flow measurement.
$3.00
Grade 8 Science | Statistical Reasoning TEKS Worksheet (Worksheet + Answer Key)
Learning Objectives
- Understand how to interpret variability measures and correlation coefficients in data.
- Apply probability concepts to analyze experimental outcomes.
- Choose appropriate summary statistics for different data distributions.
$3.00
Grade 8 Science | Force Diagrams Worksheet (Answer Key) – TEKS-Aligned
Learning Objectives
- Identify and interpret forces using free-body diagrams including normal, gravitational, frictional, and tension forces.
- Decompose forces on inclined planes into vector components.
- Calculate net force using vector components and understand its effect on motion.
$3.00
Grade 8 Science | Gravitational Interactions Worksheet with Answer Key (PDF)
Learning Objectives
- Explain that gravitational interactions are universally attractive and depend on mass and distance.
- Describe how gravity influences planetary orbits, satellite motion, and ocean tides.
- Understand the inverse-square relationship between force, mass, and distance in gravity.
$3.00
Grade 8 Science | The Solar System Worksheet (Worksheet + Answer Key) – TEKS Aligned
Learning Objectives
- Describe the major components of the solar system including planets, moons, asteroids, and comets.
- Compare the properties of terrestrial and gas giant planets.
- Explain the role of gravity and solar energy in planetary orbits and environments.
$3.00
Grade 8 Science | Systems Integration Worksheet (PDF) – BC Standards Aligned
Learning Objectives
- Explain how multiple organ systems work together to maintain homeostasis.
- Identify key functions of respiratory, circulatory, excretory, and endocrine systems.
- Describe how cellular specialization contributes to organ function.
$3.00
Grade 8 Science | Phase Transitions Worksheet (PDF) – Alberta Standards
Learning Objectives
- Understand the different types of phase transitions between solid, liquid, and gas.
- Identify real-world examples of phase changes affecting environment and infrastructure.
- Explain the energy and particle rearrangements during phase transitions.
$3.00
Grade 8 Science – Design Optimization Worksheet (Answer Key) | NGSS Alignment
Learning Objectives
- Analyze test data to identify performance trends in design modifications.
- Use graphical and statistical summaries to evaluate design improvements.
- Quantify trade-offs among efficiency, strength, and durability in iterative design processes.
$3.00
Grade 8 Science – Evolutionary Patterns Worksheet (PDF) | TEKS Standards
Learning Objectives
- Identify sources of genetic variation and understand their role in evolution
- Explain how selective pressures influence trait distribution over generations
- Differentiate between natural selection and artificial selection
$3.00
Grade 8 Science | Climate Effects Worksheet – Impact on Ecosystems (PDF)
Learning Objectives
- Understand how climate variation impacts temperature and precipitation patterns.
- Identify the effects of climate change on ecosystems and species interactions.
- Analyze the consequences of shifting species ranges and phenology.
$3.00
Grade 8 Science | Genetic Diversity Worksheet + Answer Key (PDF) – BC Standards
Learning Objectives
- Explain the importance of genetic diversity within populations.
- Identify factors that influence genetic variation among species.
- Analyze the consequences of low genetic diversity on species survival.
$3.00
Grade 8 Science | Density Principles Worksheet (PDF) – TEKS Standards
Learning Objectives
- Understand the concept of density as a relation between mass and volume.
- Explain how density influences buoyancy and object behavior in fluids.
- Calculate density using given mass and volume measurements.
$3.00
Grade 8 Science | Climate Circulation Concepts & NGSS Aligned Worksheet (PDF)
Learning Objectives
- Explain the patterns of atmospheric and oceanic circulation driven by unequal solar heating and planetary rotation.
- Describe the functions of Hadley, Ferrel, and polar cells and their influence on regional climates.
- Analyze how Coriolis effect influences wind direction and ocean currents such as gyres and thermohaline circulation.
$3.00
Grade 8 Science | Water Cycle Worksheet (NGSS Standards) – Science (PDF)
Learning Objectives
- Describe the processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
- Explain how energy from the Sun drives water cycle processes and how gravity influences runoff and groundwater movement.
- Connect the water cycle to land surface processes such as weathering, erosion, and sediment delivery.
$3.00
Grade 8 Science | Material Origins Worksheet (NGSS Aligned PDF)
Learning Objectives
- Understand how natural resources are transformed into synthetic materials.
- Identify the properties and applications of materials derived from different sources.
- Explore environmental and resource considerations in material sourcing and processing.
$3.00
Grade 8 Science | Speciation Patterns Worksheet (Answer Key) – NGSS Aligned
Learning Objectives
- Understand the processes that generate new species and lead to extinction.
- Identify types of speciation such as allopatric and adaptive radiation.
- Explain the evidence supporting episodes of diversification and mass extinctions.
$3.00
Grade 8 Science | Plate Motions Worksheet + Answer Key (NGSS Aligned PDF)
Learning Objectives
- Understand the mechanisms of plate tectonics and how they produce landforms.
- Identify evidence supporting theories of seafloor spreading and magnetic striping.
- Explain processes like subduction, rifting, continental collision, and uplift.
$3.00
Grade 8 Science | States of Matter Worksheet (Worksheet + Answer Key) - TEKS Aligned
Learning Objectives
- Describe the different states of matter: solid, liquid, gas, and plasma.
- Explain particle arrangements and motions in each state based on kinetic molecular theory.
- Identify energy changes associated with phase transitions such as melting, boiling, condensation, and sublimation.
$3.00
Grade 8 Science | Reaction Rates Worksheet (Answer Key) – TEKS Aligned
Learning Objectives
- Identify factors that influence the speed of chemical reactions
- Explain how temperature, concentration, surface area, and catalysts affect reaction rates
- Connect molecular collision frequency and activation energy to observable rate changes
$3.00
Grade 8 Science | Newton's Laws (Worksheet + Answer Key) – Alberta Standard
Learning Objectives
- Describe and explain Newton's three laws of motion.
- Identify real-world examples that demonstrate each of Newton's laws.
- Predict changes in motion and force using Newton's laws.
$3.00
Grade 8 Science | Reaction Types Worksheet (PDF) – Standard BC – Science
Learning Objectives
- Identify and describe the main types of chemical reactions including synthesis, decomposition, single and double displacement, and combustion.
- Recognize characteristic bond-making and bond-breaking patterns in different reaction types.
- Predict possible products based on the reaction type.
$3.00
8th Grade Science | Applied Investigations Worksheet (PDF) – TEKS Aligned
Learning Objectives
- Understand how to select variables and design experiments for real-world phenomena.
- Analyze data using graphical and statistical summaries to draw conclusions.
- Apply ethical, safety, and transparent practices in conducting investigations.
$3.00
Grade 8 Science – Systems Analysis Worksheet (PDF) – Alberta Standards
Learning Objectives
- Understand how to identify and decompose forces in complex systems
- Analyze vector contributions and assess equilibrium or net acceleration
- Differentiate between internal and external interactions in systems
$3.00
Grade 8 Science | Springs and Elasticity Worksheet (PDF)
Learning Objectives
- Understand the concept of elastic forces and deformation in materials.
- Identify examples of elastic components in everyday and mechanical systems.
- Explain the proportional relationship between force and displacement in elastic materials.
$3.00
Grade 8 Science | Mass and Weight Concept Worksheet (PDF)
Learning Objectives
- Differentiate between mass and weight and understand their intrinsic properties and external influences.
- Explain how gravitational acceleration affects weight and why identical masses experience the same gravitational force.
$3.00
Grade 8 Science | Collisions And Energy Worksheet (Answer Key) – BC Standards
Learning Objectives
- Understand the difference between elastic and inelastic collisions.
- Explain how energy is transferred and transformed during collisions.
- Describe the role of momentum in collision outcomes.
$3.00
Grade 8 Science – Collision Forces Worksheet (PDF) | Alberta Standards
Learning Objectives
- Understand how force magnitude and contact time influence motion changes during collisions.
- Explain how structural deformation absorbs energy in impact events.
- Describe the relationship between force peaks and observable outcomes in collisions.
$3.00
Grade 8 Science | Aerodynamic Drag (Worksheet + Answer Key) – Alberta Standards
Learning Objectives
- Understand the concept of aerodynamic drag and factors that influence it.
- Describe how shape and flow conditions affect air resistance in practical applications.
- Analyze how design choices can mitigate drag in vehicles and wind turbines.
$3.00
Grade 8 Science | Trip Analysis Worksheet (Worksheet + Answer Key) BC Standard
Learning Objectives
- Understand how to analyze motion with segments of different speeds and durations.
- Apply proportional reasoning to compute average speed in nonuniform motion scenarios.
- Use distance-time pairs to model and interpret complex travel legs.
$3.00
Grade 8 Science | DNA and Traits Worksheet (NGSS-Aligned, PDF)
Learning Objectives
- Describe the relationship between DNA sequences and protein synthesis.
- Explain how mutations can alter amino acid sequences and affect traits.
- Identify key components of gene structure, transcription, and translation.
$3.00
Grade 8 Science Worksheet – Climate Impacts | Ontario (PDF)
Learning Objectives
- Explain how climate variability affects water systems like precipitation and runoff.
- Identify consequences of climate change on flood frequency, drought, and water storage.
- Analyze the interaction between land-use change and regional hydrology under climate change.
$3.00
Grade 8 Science | Understanding Scientific Method Worksheet (Answer Key) – TEKS Aligned
Learning Objectives
- Understand the steps involved in the scientific method and inquiry.
- Identify how empirical evidence supports scientific claims.
- Develop hypotheses based on observations of motion and causal reasoning.
$3.00
Grade 8 Science – Restoration Strategies Worksheet (PDF) – Alberta Standards
Learning Objectives
- Understand principles of ecological restoration in Alberta contexts.
- Identify methods and approaches used in ecological restoration.
- Evaluate recovery metrics and timeframes for ecosystem recovery.
$3.00
Grade 8 Science | Predator-Prey Balance Worksheet (PDF)
Learning Objectives
- Understand how predator–prey relationships influence population dynamics.
- Identify factors affecting predator and prey populations in ecosystems.
- Explain the impact of top predator presence or absence on community structure.
$3.00
Grade 8 Science | Earth's Motions TEKS Worksheet (Answer Key) – Comprehensive Practice
Learning Objectives
- Explain Earth's rotation and revolution and how they cause day and night, as well as seasonal changes.
- Identify the effects of axial tilt and Earth's orbit on sunlight distribution, seasons, and observable phenomena.
- Connect observable phenomena such as constellations, sunrise and sunset times, and solstices/equinoxes to Earth's motions.
$3.00
Grade 8 Science – Seismic Activity Worksheet (Answer Key) | TEKS-Aligned
Learning Objectives
- Understand how faults and plate boundary interactions contribute to seismic activity.
- Identify and describe different types of seismic waves and their propagation.
- Interpret seismic records and locate earthquake epicenters.
$3.00
Grade 8 Science | Variables and Controls Worksheet (PDF) Aligned with TEKS Standards
Learning Objectives
- Understand the roles of independent, dependent, and controlled variables in experiments.
- Identify and classify variables within different types of scientific investigations.
- Learn how to establish fair tests by selecting appropriate controls and documenting procedural constraints.
$3.00
Grade 8 Science | Biodiversity Conservation Worksheet (Answer Key) – TEKS Aligned
Learning Objectives
- Understand the importance of species diversity, ecosystem function, and conservation strategies.
- Identify measurement methods of biodiversity and analyze ecosystem services.
- Evaluate various conservation and restoration strategies and their trade-offs.
$3.00
Grade 8 Science | Nutrient Cycling Worksheet (PDF) – Alberta Standards
Learning Objectives
- Explain key processes involved in nutrient cycling in ecosystems.
- Identify the roles of decomposers, nitrogen fixation, and sedimentation.
- Describe how environmental factors influence nutrient cycling rates.
$3.00
Grade 8 Science | Population Change Worksheet (NGSS Aligned) – PDF
Learning Objectives
- Understand factors influencing population dynamics, including carrying capacity, and density-dependent and density-independent factors.
- Analyze case studies such as invasive species, overharvesting, and drought impacts on populations.
- Interpret population graphs and trends related to birth and death rates.
$3.00
Grade 8 Science | Particle Theory Worksheet (PDF) – Alberta Standards
Learning Objectives
- Describe how particles make up solids, liquids, and gases.
- Explain the motion and arrangement of particles in different states of matter.
- Connect microscopic particle behaviour to observable properties like rigidity, flow, and compressibility.
$3.00
Grade 8 Science – Applications Design TEKS Standards (Worksheet + Answer Key) (PDF)
Learning Objectives
- Understand how material properties influence energy efficiency and environmental impact.
- Identify considerations in material selection for insulation, separation, and energy storage.
- Analyze the trade-offs among density, conductivity, reactivity, and thermal behavior in engineering choices.
$3.00
Grade 8 Science | Transport Systems Worksheet + Answer Key (PDF)
Learning Objectives
- Understand the structure and function of different transport tissues in plants and animals.
- Identify key components and their roles in circulatory and vascular systems.
- Explain how bulk flow and diffusion facilitate nutrient, gas, and waste exchange.
$3.00
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.