Grade 8 Worksheets
8,421 grade resourcesGrade 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.
Also included in: Grade 8 Science Unit Bundle | Scientific Inquiry, Data & Measurement Skills +1 more
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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.
Also included in: Grade 8 Science | Matter and Its Interactions NGSS Unit Bundle – Worksheets +1 more
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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.
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Grade 8 Science – Reaction Types Daily Reading Worksheet + Answer Key
Learning Objectives
- Understand key concepts related to Science
- Apply knowledge through practice questions
- Demonstrate comprehension of the material
Also included in: Grade 8 Science Lesson Group | Physical Changes and Chemical Reactions +1 more
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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.
Also included in: Grade 8 Science Unit | DNA, Traits & Mendelian Patterns Worksheet Bundle - NGSS +2 more
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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.
Also included in: Grade 8 Science Unit | DNA, Traits & Mendelian Patterns Worksheet Bundle - NGSS +2 more
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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.
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Grade 8 Science – Population Drivers in Ecosystems Daily Worksheet + Answer Key
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.
Also included in: Grade 8 Science Lesson Bundle | Ecosystems, Energy, and Environmental Impact +1 more
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Law and Resistance Worksheet | BC Standards | Grade 8 Social Studies
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.
Also included in: Grade 8 Social Studies | Indigenous Rights & Government Policies Bundle +1 more
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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.
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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.
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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.
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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
Also included in: Grade 8 Genetics, Evolution & Ecosystems Lesson Bundle | Florida NGSSS
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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.
Also included in: Grade 8 Science UNIT | Multicellular Structure & Function Worksheet Bundle +1 more
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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.
Also included in: Matter Change Grade 8 Science Daily Reading Worksheets Lesson Bundle | Alberta +2 more
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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
Also included in: Grade 8 Electricity Science Daily Reading Worksheets Lesson Bundle | Alberta +2 more
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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.
Also included in: Matter Change Grade 8 Science Daily Reading Worksheets Lesson Bundle | Alberta +2 more
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Grade 8 Science Reading Worksheets | Reaction Evidence - PDF with Answer Key
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.
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Grade 8 Science | Energy Forms Reading Worksheet (PDF + Answer Key)
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.
Also included in: Grade 8 Science | Energy & Forces Unit Worksheet Pack (Answer Keys Included) +1 more
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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
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)
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.
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Grade 8 Science | Environmental Balances Reading Worksheet & Answer Key (PDF)
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.
Also included in: Grade 8 Science | Essential Concepts & Processes Pack (Answer Key Included) +1 more
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Grade 8 Science | Circuit Analysis Worksheet | Alberta Standards
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
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.
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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.
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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.
Also included in: Grade 8 Science Unit Bundle: Ecosystems, Matter Cycles & Food Webs Worksheets +2 more
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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.
Also included in: Grade 8 Space Systems Science Daily Reading Worksheets Lesson Bundle | NGSS +1 more
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Revolutionary Ideas Social Studies Worksheet | California Grade 8
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.
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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.
Also included in: Grade 8 Science | Earth and Human Activity NGSS Unit Bundle (Collection) +1 more
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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
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)
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.
Also included in: Grade 8 Science Unit Bundle – Density, Pressure & Fluid Mechanics Worksheets +1 more
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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.
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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.
Also included in: Grade 8 Science | Mechanical Systems & Energy Mastery Unit Worksheet Pack +1 more
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Grade 8 Science – Sources of Error Daily Reading Worksheet + Answer Key
Learning Objectives
- Understand different types of measurement errors
- Recognize systematic and random errors
- Learn methods to identify and minimize errors
Also included in: Grade 8 Science Lesson Group Bundle | TEKS Standards-Aligned Worksheets +1 more
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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.
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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
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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)
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
Also included in: Grade 8 Science | Solar System Patterns, Orbital Cycles & Gravity (PDF +Answers) +1 more
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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.
Also included in: Grade 8 Science Unit Bundle | Cell Structure & Function Worksheets +1 more
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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.
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Grade 8 – Electrical Safety and Environmental Worksheet + Answer Key
Learning Objectives
- Identify key safety features in electrical systems
- Understand environmental considerations related to electricity generation
- Recognize protective devices used in electrical system design
Also included in: Grade 8 Science Lesson Bundle — Electricity, Circuits & Energy +1 more
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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.
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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.
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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
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.
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
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
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.
Also included in: Grade 8 Science | Data Analysis & Engineering Design Unit Worksheet Bundle +2 more
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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.