Grade 8 Worksheets

8,421 grade resources
Grade 8 Science | Variables and Controls Worksheet (PDF) Aligned with TEKS Standards

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.
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Grade 8 Science Reaction Evidence Worksheet with Short Notes (Printable PDF)

Grade 8 Science Reaction Evidence Worksheet with Short Notes (Printable PDF)

Learning Objectives

  • Analyze observable indicators such as color change, gas production, precipitate formation, and temperature change to identify chemical reactions.
  • Interpret qualitative and quantitative data to distinguish between physical and chemical changes in substances.
  • Link macroscopic reaction evidence to particle rearrangement and formation of new substances with different properties.
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Grade 8 Science | Membrane Functions Worksheet + Answer Key (PDF)

Grade 8 Science | Membrane Functions Worksheet + Answer Key (PDF)

Learning Objectives

  • Describe how cell membranes regulate exchange between the cell interior and exterior.
  • Explain how membrane composition and surface area influence diffusion and cell signaling.
  • Link microscopic membrane structure to organ function and overall physiological performance.

Grade 8Science

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Grade 8 Science – Reaction Types Daily Reading Worksheet + Answer Key

Grade 8 Science – Reaction Types Daily Reading Worksheet + Answer Key

JCreated byJ.S Sheets

Learning Objectives

  • Understand key concepts related to Science
  • Apply knowledge through practice questions
  • Demonstrate comprehension of the material
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Grade 8 Science | DNA and Traits Worksheet (NGSS-Aligned, PDF)

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.
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8th Grade Science | Mendelian Patterns Worksheet (Answer Key) – NGSS Aligned

8th Grade Science | Mendelian Patterns Worksheet (Answer Key) – NGSS Aligned

Learning Objectives

  • Describe how dominant and recessive alleles interact to determine observable traits.
  • Predict genotypic and phenotypic ratios using Punnett squares.
  • Explain the segregation of alleles during meiosis and inheritance.
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Grade 8 Science Water Quality Indicators Worksheet (Ontario) – PDF

Grade 8 Science Water Quality Indicators Worksheet (Ontario) – PDF

Learning Objectives

  • Identify physical, chemical, and biological water quality indicators.
  • Interpret indicator ranges for aquatic health and uses.
  • Understand sources of variability and limitations in water assessment.

Grade 8Science

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Grade 8 Science – Population Drivers in Ecosystems Daily Worksheet + Answer Key

Grade 8 Science – Population Drivers in Ecosystems Daily Worksheet + Answer Key

JCreated byJ.S Sheets

Learning Objectives

  • Understand different population growth models such as exponential and logistic growth.
  • Identify factors influencing population changes, including food supply and predation.
  • Describe examples of population cycles, such as snowshoe hare and lynx interactions.
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Law and Resistance Worksheet | BC Standards | Grade 8 Social Studies

Law and Resistance Worksheet | BC Standards | Grade 8 Social Studies

JCreated byJ.S Sheets

Learning Objectives

  • Understand how Indigenous peoples have responded to laws restricting land use and cultural practices.
  • Identify forms of resistance and resilience demonstrated by Indigenous communities.
  • Analyze historical examples of Indigenous legal challenges and cultural revitalization efforts.
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Grade 8 Science Worksheet – Conservation Applications (PDF) – BC Standards

Grade 8 Science Worksheet – Conservation Applications (PDF) – BC Standards

Learning Objectives

  • Apply the law of conservation of mass to open and closed systems by accounting for all matter and possible mass transfer.
  • Use quantitative evidence (before/after masses) to explain apparent mass changes without breaking atom conservation.
  • Connect balanced chemical equations to mass and mole relationships when comparing measured reactant and product values.

Grade 8Science16 Pages

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8th Grade Science Models and Systems Worksheet with Short Notes (Printable PDF)

8th Grade Science Models and Systems Worksheet with Short Notes (Printable PDF)

Learning Objectives

  • Understand the components and interactions within physical and ecological systems.
  • Explain the concept of energy transfer, matter conservation, and forces in systems.
  • Use diagrams and models to trace system flows and predict responses.

Grade 8Science

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Human Effects on Ecosystems Worksheet | Grade 8 Science Alberta

Human Effects on Ecosystems Worksheet | Grade 8 Science Alberta

Learning Objectives

  • Understand how human land use impacts habitat and nutrient cycles in Alberta.
  • Identify various human activities that affect species interactions and ecosystems.
  • Analyze mitigation strategies used to restore ecological functions and connectivity.

Grade 8Science

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Natural Selection Worksheet Grade 8 Science | Evolution & Adaptations

Natural Selection Worksheet Grade 8 Science | Evolution & Adaptations

Learning Objectives

  • Explain how natural selection requires variation and depends on environmental conditions
  • Describe how advantageous traits become more common over successive generations
  • Use examples (such as antibiotic resistance) to illustrate changes in trait frequencies
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Grade 8 Science — Organ Systems Worksheet MCQ Paper for Mastery

Grade 8 Science — Organ Systems Worksheet MCQ Paper for Mastery

Learning Objectives

  • Understand the structure and function of various human organ systems.
  • Identify how organs collaborate within systems to perform physiological functions.
  • Explain the importance of tissue compatibility and communication pathways in systems biology.
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Grade 8 Science – Understanding the Properties of Solids | Reading Worksheet

Grade 8 Science – Understanding the Properties of Solids | Reading Worksheet

Learning Objectives

  • Identify the particle arrangement in solids, liquids, and gases.
  • Describe the key characteristics that distinguish solids from other states.
  • Explain why solids maintain a fixed shape and how their particles behave.
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Grade 8 Science – Power & Efficiency in Electrical Devices | Reading Worksheet

Grade 8 Science – Power & Efficiency in Electrical Devices | Reading Worksheet

Learning Objectives

  • Understand the concept of power as energy transfer per unit time
  • Identify factors affecting the efficiency of electrical devices
  • Analyze how energy loss mechanisms impact device performance
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Grade 8 Science – Intermolecular Forces & Physical Properties | Worksheet

Grade 8 Science – Intermolecular Forces & Physical Properties | Worksheet

Learning Objectives

  • Understand the concept of intermolecular forces and how they influence physical properties of substances.
  • Identify different types of intermolecular forces and their effects on melting points, boiling points, and solubility.
  • Relate molecular interactions to regional phenomena such as freeze–thaw cycles, hydrocarbon volatility, and evaporation rates.
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Grade 8 Science Reading Worksheets | Reaction Evidence - PDF with Answer Key

Grade 8 Science Reading Worksheets | Reaction Evidence - PDF with Answer Key

JCreated byJ.S Sheets

Learning Objectives

  • Identify observable evidence of chemical and physical changes.
  • Distinguish between chemical and physical changes based on evidence.
  • Explain examples of common chemical and physical transformations.

Grade 8Science

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Grade 8 Science | Energy Forms Reading Worksheet (PDF + Answer Key)

Grade 8 Science | Energy Forms Reading Worksheet (PDF + Answer Key)

JCreated byJ.S Sheets

Learning Objectives

  • Identify the different types of energy present in mechanical systems.
  • Describe how potential and kinetic energy convert between each other during system motion.
  • Recognize thermal and acoustic energy as energy sinks in various systems.
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Immune Defense Assessment for Grade 8 Science | BC Standards

Immune Defense Assessment for Grade 8 Science | BC Standards

Learning Objectives

  • Describe the components and functions of the innate and adaptive immune systems.
  • Identify the roles of different immune cells such as phagocytes, lymphocytes, and antigen-presenting cells.
  • Explain how tissues and organs coordinate immune responses to maintain internal balance during infection.
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Grade 8 Science Assessment | Membrane Structure Worksheet Elena | Ontario

Grade 8 Science Assessment | Membrane Structure Worksheet Elena | Ontario

Lumora LearningCreated byLumora Learning

Learning Objectives

  • Explain the basic architecture of cell membranes, including phospholipids, proteins, cholesterol, and carbohydrates.
  • Describe the functions of membrane proteins in transport, signaling, and structural support.
  • Compare structural variations in membranes among different cell types and their implications for permeability and resilience.
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8th Grade Science | Reaction Evidence Worksheet with Short Notes (Printable PDF)

8th Grade Science | Reaction Evidence Worksheet with Short Notes (Printable PDF)

Learning Objectives

  • Identify observable indicators of chemical reactions such as color change, gas evolution, precipitate formation, temperature change, and irreversible transformation.
  • Differentiate between chemical and physical changes using reaction evidence.
  • Understand conservation concepts in closed systems during chemical reactions.

Grade 8Science

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Grade 8 Science | Environmental Balances Reading Worksheet & Answer Key (PDF)

Grade 8 Science | Environmental Balances Reading Worksheet & Answer Key (PDF)

JCreated byJ.S Sheets

Learning Objectives

  • Understand how particle theory, classification principles, and mass conservation are applied in environmental chemical processes.
  • Interpret nutrient cycling, contamination transfer, and remediation within environments such as lakes and contaminated sites.
  • Analyze phase changes, mixtures, and chemical signatures to trace sources and sinks in closed or semi-closed systems.
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Grade 8 Science | Circuit Analysis Worksheet | Alberta Standards

Grade 8 Science | Circuit Analysis Worksheet | Alberta Standards

Lumora LearningCreated byLumora Learning

Learning Objectives

  • Understand the principles of voltage, current, and power in electrical circuits.
  • Apply conservation laws to analyze complex electrical networks.
  • Interpret schematic diagrams and perform systematic calculations of circuit parameters.
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Grade 8 Science | Energy Dissipation Worksheet (PDF) – BC Standards

Grade 8 Science | Energy Dissipation Worksheet (PDF) – BC Standards

Learning Objectives

  • Understand how mechanical energy transforms into less useful forms like thermal energy through various mechanisms.
  • Identify different causes and effects of energy dissipation in mechanical systems.
  • Explain the concept of efficiency and factors that influence energy transfer losses.

Grade 8Science

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8th Grade Science Cellular Processes Worksheet with Short Notes (Printable PDF)

8th Grade Science Cellular Processes Worksheet with Short Notes (Printable PDF)

Learning Objectives

  • Explain the energy transformations involved in photosynthesis and cellular respiration.
  • Describe how membrane transport processes regulate internal cell conditions.
  • Identify the chemical inputs and outputs of photosynthesis and respiration.

Grade 8Science

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Grade 8 Science – Ecosystem Models Worksheet (Answer Key) | NGSS Aligned

Grade 8 Science – Ecosystem Models Worksheet (Answer Key) | NGSS Aligned

Learning Objectives

  • Understand how to construct and interpret system diagrams of ecosystems.
  • Identify biotic and abiotic components and their interactions.
  • Analyze the effects of changes in one component on the entire ecosystem.
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Grade 8 Science – Solar System Scale & Patterns Daily Reading Worksheet

Grade 8 Science – Solar System Scale & Patterns Daily Reading Worksheet

Learning Objectives

  • Understand the relative sizes of different solar system objects, including planets, moons, and the Sun.
  • Interpret data such as diameters, distances in astronomical units, and orbital periods to identify patterns and relationships.
  • Use scale concepts to compare the vast differences in size and distance across the solar system.
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Revolutionary Ideas Social Studies Worksheet | California Grade 8

Revolutionary Ideas Social Studies Worksheet | California Grade 8

JCreated byJ.S Sheets

Learning Objectives

  • Understand the key concepts and principles articulated in the Declaration of Independence.
  • Analyze the influence of Enlightenment ideas on revolutionary theories.
  • Identify the core claims related to equality, individual rights, and government legitimacy.

Grade 8Social Studies

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Grade 8 Science | Environmental Monitoring Worksheet with Short Notes (PDF)

Grade 8 Science | Environmental Monitoring Worksheet with Short Notes (PDF)

Learning Objectives

  • Understand the importance of environmental monitoring in assessing ecosystem health.
  • Identify different methods used to monitor environmental pollution.
  • Learn about key indicators used to assess air, water, and soil quality.
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Grade 8 Science – Pollution Impacts & Water Quality | Daily Reading Worksheet

Grade 8 Science – Pollution Impacts & Water Quality | Daily Reading Worksheet

Learning Objectives

  • Understand how pollution affects ecosystems and organisms
  • Identify sources and pathways of water pollution
  • Explain the effects of nutrient overload and contaminants on water quality

Grade 8Science24 Pages

Also included in: Grade 8 Ecosystems Daily Reading Worksheets Lesson Bundle | BC +1 more

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Grade 8 Science | Atmospheric Effects Reading Worksheets (PDF + Rubric)

Grade 8 Science | Atmospheric Effects Reading Worksheets (PDF + Rubric)

JCreated byJ.S Sheets

Learning Objectives

  • Describe how atmospheric pressure affects boiling points and weather instruments.
  • Explain the operation of barometers and pressure-sensitive devices.
  • Analyze the relationship between altitude and pressure variation.
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Power and Efficiency Worksheet for Grade 8 Science | Alberta Standards

Power and Efficiency Worksheet for Grade 8 Science | Alberta Standards

Learning Objectives

  • Explain the concept of power as energy transfer per unit time.
  • Compare the efficiency of different electrical devices and systems.
  • Identify loss mechanisms such as resistive heating, transformer losses, and transmission dissipation.

Grade 8Science

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Grade 8 Science — Efficiency Losses in Mechanical Systems Worksheet for Mastery

Grade 8 Science — Efficiency Losses in Mechanical Systems Worksheet for Mastery

Learning Objectives

  • Define mechanical efficiency and explain how energy dissipation mechanisms reduce it.
  • Identify common causes of energy losses in gears, bearings, and belt drives.
  • Describe measurement methods for quantifying efficiency losses.
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Grade 8 Science – Sources of Error Daily Reading Worksheet + Answer Key

Grade 8 Science – Sources of Error Daily Reading Worksheet + Answer Key

JCreated byJ.S Sheets

Learning Objectives

  • Understand different types of measurement errors
  • Recognize systematic and random errors
  • Learn methods to identify and minimize errors
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Grade 8 Science – Reaction Quantities Worksheet (PDF) – Alberta Standards

Grade 8 Science – Reaction Quantities Worksheet (PDF) – Alberta Standards

Learning Objectives

  • Understand how to relate masses of reactants and products in chemical reactions using proportional reasoning.
  • Apply the law of conservation of mass to interpret measurements in chemical systems.
  • Use stoichiometry to predict relative amounts of substances involved in reactions.

Grade 8Science

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Grade 8 Electric Charge Worksheet | Alberta Use Practice PDF

Grade 8 Electric Charge Worksheet | Alberta Use Practice PDF

Learning Objectives

  • Differentiate static electricity from current electricity using origin, mobility, and effects of charge
  • Describe how electric charge transfers between objects and how conductors and insulators affect charge movement
  • Use basic vocabulary (proton, electron, conductor, insulator, ion) to explain electrostatic phenomena

Grade 8Science12 Pages

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Thermal Transfer Modes Worksheet | Conduction Convection Radiation Grade 8

Thermal Transfer Modes Worksheet | Conduction Convection Radiation Grade 8

Learning Objectives

  • Explain how thermal energy transfers through conduction, convection, and radiation
  • Use everyday examples to connect heat movement to temperature changes
  • Identify which thermal transfer mode best fits a described situation
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Grade 8 Science | Orbital Cycles Worksheet (PDF + Answer Key)

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

Learning Objectives

  • Understand the relative positions and motions of the Earth, Sun, and Moon
  • Explain the causes of lunar phases, eclipses, and seasonal changes
  • Identify observable phenomena linked to orbital geometry and timing
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Grade 8 Science | Cell Cycle Worksheet (PDF ) – Ontario Standards

Grade 8 Science | Cell Cycle Worksheet (PDF ) – Ontario Standards

Learning Objectives

  • Describe the main phases of the cell cycle, including interphase, mitosis, and cytokinesis.
  • Identify the roles of cyclins, kinases, and checkpoint mechanisms in cell division.
  • Explain how proper regulation of the cell cycle maintains organismal development and prevents genomic instability.
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Pressure And Temperature Worksheet | Grade 8 Science Practice

Pressure And Temperature Worksheet | Grade 8 Science Practice

Learning Objectives

  • Explain how particle motion relates to gas pressure and temperature using a collision model.
  • Describe how changes in temperature affect the speed of gas particles and the force of collisions.
  • Use particle ideas to interpret macroscopic observations of gases in containers.

Grade 8Science30 Pages

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Grade 8 – Electrical Safety and Environmental Worksheet + Answer Key

Grade 8 – Electrical Safety and Environmental Worksheet + Answer Key

JCreated byJ.S Sheets

Learning Objectives

  • Identify key safety features in electrical systems
  • Understand environmental considerations related to electricity generation
  • Recognize protective devices used in electrical system design
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8th Grade Science | Earth Motions Worksheet (PDF+ Answer Key)

8th Grade Science | Earth Motions Worksheet (PDF+ Answer Key)

Learning Objectives

  • Describe Earth's rotation and its role in day and night cycles.
  • Explain Earth's revolution around the Sun and how it causes seasons.
  • Identify how Earth's axial tilt affects the Sun's altitude and length of days at different latitudes.

Grade 8Science

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8th Grade Science | Surface Exchanges Worksheet (PDF+ Answer Key)

8th Grade Science | Surface Exchanges Worksheet (PDF+ Answer Key)

Learning Objectives

  • Explain the mechanisms of surface water and groundwater interactions.
  • Identify factors influencing exchange rates between surface water and groundwater.
  • Describe how river stage and seasonal changes affect surface exchanges.

Grade 8Science

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Grade 8 Science | Natural Hazards Worksheet (PDF + Answer Key)

Grade 8 Science | Natural Hazards Worksheet (PDF + Answer Key)

Learning Objectives

  • Understand how earthquake, volcanic, tsunami, and fault data are used to assess natural hazard risks.
  • Interpret geospatial and statistical data to evaluate recurrence intervals and hazard potential.
  • Learn how monitoring technologies inform hazard forecasting and mitigation efforts.
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Grade 8 Science | Population Effects Worksheet (NGSS) – PDF

Grade 8 Science | Population Effects Worksheet (NGSS) – PDF

Learning Objectives

  • Analyze how population growth and per-capita consumption influence Earth system changes.
  • Evaluate evidence related to resource use trends, land cover change, and biogeochemical fluxes.
  • Understand the relationships between demographic patterns, climate change, water availability, and biodiversity.

Grade 8Science

Also included in: Grade 8 Science | Earth and Human Activity NGSS Unit Bundle +1 more

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Gas Behaviour Assessment for Grade 8 Science – Alberta Standards

Gas Behaviour Assessment for Grade 8 Science – Alberta Standards

Learning Objectives

  • Explain how particle motion relates to gas pressure and temperature.
  • Describe the effects of temperature changes on gas expansion and compression.
  • Analyze real-world examples of gas behaviour in Alberta, such as atmospheric pressure variation with altitude and seasonal mixing.
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Grade 8 Science – Design Optimization Worksheet (Answer Key) | NGSS Alignment

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.
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About Grade 8 Worksheets

Explore Grade 8 worksheets in math, ELA, science, and social studies. Our 8,421 Grade 8 printables print straight from PDF, answer keys included.

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.