Grade 8 Science Worksheets
5,548 worksheets
Grade 8 Science –Thermal Effects and Particle Motion Worksheet(PDF + Answer Key)
Learning Objectives
- Understand key concepts related to Science
- Apply knowledge through practice questions
- Demonstrate comprehension of the material
Free
Grade 8 Science – Energy Conservation Worksheet(PDF + Answer Key)
Learning Objectives
- Understand the relationship between motion and energy.
- Explain how energy is transferred during collisions and motion.
- Identify different forms of energy and their conversions.
$3.00
Grade 8 Science | Layered Fluids Worksheets (Ontario) (PDF)
Learning Objectives
- Understand how density differences create stratified layers in fluids.
- Explain the effects of temperature and salinity on fluid density and stability.
- Interpret buoyancy frequency and density profiles in natural bodies of water.
$3.00
Grade 8 Science Climate Drivers Daily Reading Worksheet(PDF + Answer Key)
Learning Objectives
- Identify and explain the role of greenhouse gases in climate change
$3.00
Grade 8 Science – Contaminant Transport Worksheet (Ontario) (PDF)
Learning Objectives
- Understand the processes governing the movement of contaminants in surface and subsurface waters.
- Identify factors affecting the formation and migration of contaminant plumes.
- Explore the interactions of contaminants with sediments and particulate phases.
$3.00
Grade 8 Science – Tradeoff Analysis in Renewable Energy Projects(PDF +Answers)
Learning Objectives
- Understand the concept of tradeoffs in project decision-making.
- Analyze the impact of cost, sustainability, and efficiency in renewable energy.
- Apply decision tools such as weighted scoring and pareto comparisons.
$3.00
Grade 8 Science – Sources of Pollution Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Differentiate between point and nonpoint sources of pollution with examples.
- Understand processes like nutrient enrichment, eutrophication, and oxygen depletion.
- Connect landscape practices and land-use patterns to pollutant transport pathways and vulnerability.
$3.00
Grade 8 Science | Watershed Systems Worksheet (Ontario, Science 1) (PDF)
Learning Objectives
- Describe characteristics of drainage basins and watershed boundaries.
- Explain how runoff generation, stream networks, and tributary hierarchy affect watershed functions.
- Analyze the influence of land cover, slope, and soil type on infiltration and overland flow.
$3.00
Grade 8 Science | Comparative Cells Worksheet (Ontario) – Science 1 (PDF)
Learning Objectives
- Identify the distinguishing features of plant and animal cells.
- Describe the functions of cellular components such as cell walls, chloroplasts, vacuoles, centrioles, and lysosomes.
- Compare prokaryotic and eukaryotic cell organization.
$3.00
Grade 8 Science | Organelles Roles Worksheet (Ontario) (PDF)
Learning Objectives
- Identify the major organelles in a cell and describe their functions.
- Explain how organelles work together to perform cellular processes like energy production and protein synthesis.
- Understand the structural features that relate to organelle functions and how dysfunction can affect cells.
$3.00
Grade 8 Science – Hydrostatic Variation Worksheet (Ontario) (PDF)
Learning Objectives
- Understand the relationship between pressure, fluid density, and depth as described by p = ρgh.
- Explain how pressure differences occur in communicating vessels and the hydrostatic paradox.
- Calculate pressure at various depths in different fluid scenarios and analyze the forces involved.
$3.00
Grade 8 Science – Momentum and Collisions Worksheet(PDF + Answer Key)
Learning Objectives
- Define momentum and explain how it is calculated.
- Differentiate between elastic and inelastic collisions.
- Describe real-world examples of momentum transfer.
$3.00
Grade 8 Science – Pascal's Principle Worksheet (Ontario | PDF)
Learning Objectives
- Explain the concept of pressure transmission in confined fluids according to Pascal's principle.
- Calculate the relationship between input and output forces and areas in hydraulic systems.
- Identify real-world devices that utilize Pascal's principle, such as hydraulic presses and braking systems.
$3.00
Grade 8 Science | Integrated Management Worksheet (Ontario) (PDF)
Learning Objectives
- Understand the concept of integrated water resources management and its components.
- Identify governance instruments and strategies used in water management.
- Explain how scientific understanding informs policy decisions in water resource management.
$3.00
Grade 8 Science – Speciation Patterns Worksheet(PDF + Answer Key)
Learning Objectives
- Understand the basic concepts of how new species form.
- Identify different patterns of speciation including geographic isolation and adaptive radiation.
- Recognize evidence from fossils and genetics that support speciation and extinction events.
$3.00
Grade 8 Science | Immune Response Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Explain the roles of innate and adaptive immune mechanisms in tissue defence.
- Identify cellular players involved in immune response such as macrophages, neutrophils, lymphocytes, and antigen-presenting cells.
- Describe processes like phagocytosis, antibody production, and cell-mediated cytotoxicity.
$3.00
Grade 8 Science | Viscosity and Flow Worksheet (Ontario) (PDF)
Learning Objectives
- Define and distinguish between dynamic and kinematic viscosity.
- Explain how viscosity affects flow rates in pipes and other systems.
- Identify factors influencing viscosity, such as temperature and shear effects.
$3.00
Grade 8 Science | Energy Forms Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Identify different forms of energy present in mechanical systems.
- Explain the roles of kinetic and potential energy in system behavior.
- Describe energy storage methods such as springs and elevated masses.
$3.00
Grade 8 Science | Density Concept Worksheet (Ontario – Science 1) (PDF)
Learning Objectives
- Understand the definition of density and its units in the SI system.
- Relate mass, volume, and density through numerical examples.
- Differentiate between density, relative density, and specific gravity.
$3.00
Grade 8 Science – Molecular Structure Daily Reading Worksheet(PDF + Answer Key)
Learning Objectives
- Understand basic atomic composition of simple molecules
- Identify element symbols and how atoms combine
- Learn to interpret particle models and symbolic formulas
$3.00
Grade 8 Science Worksheet | Cell Cycle – Ontario Standards (PDF)
Learning Objectives
- Describe the main phases of the cell cycle, including interphase, mitosis, and cytokinesis.
- Explain the roles of cyclins, kinases, and checkpoint mechanisms in regulating cell division.
- Identify examples of tissue growth, wound repair, and consequences of cell cycle dysregulation.
$3.00
Grade 8 Science – Force Diagrams Worksheet (Ontario Standards PDF)
Learning Objectives
- Understand the components and purpose of free-body diagrams for contact and non-contact forces.
- Identify and interpret vectors such as normal force, tension, friction, and gravity in force diagrams.
- Differentiate between balanced and unbalanced net forces and their effects on motion.
$3.00
Grade 8 Science – Ecosystem Models and Components Worksheet(PDF + Answer Key)
Learning Objectives
- Identify and describe biotic components in ecosystems
- Identify and describe abiotic components in ecosystems
- Understand how resources flow between components
$3.00
Grade 8 Science – Food Webs Daily Reading Worksheet(PDF + Answer Key)
Learning Objectives
- Identify producers, consumers, and decomposers in ecosystems
- Understand trophic levels and energy transfer
- Describe ecological efficiency and energy loss in food webs
$3.00
Grade 8 Science | Energy Pathways Worksheet (Ontario Science 1) (PDF)
Learning Objectives
- Map energy transfer through mechanical systems including gears, pulleys, and hydraulics.
- Identify points of energy conversion and analyze energy losses at each interface.
- Calculate net useful energy transfer in coupled systems.
$3.00
Cell Structure Test Prep Printable | Grade 8 Science NGSS Review
Learning Objectives
- Compare prokaryotic and eukaryotic cells by identifying key structural differences
- Describe how major organelles support cell functions such as energy transformation and information storage
- Connect cell structures to observable features using microscopy and imaging evidence
$5.00
Grade 8 Science | Lever Mechanics Worksheet (Ontario) – Science 1 (PDF)
Learning Objectives
- Identify and differentiate between the three classes of levers based on fulcrum, input, and output forces.
- Calculate the mechanical advantage for first-, second-, and third-class levers using distances from the fulcrum.
- Understand trade-offs between force amplification and range of motion in lever systems.
$3.00
Grade 8 Science | Pulley Systems Worksheet (Science 1) Ontario (PDF)
Learning Objectives
- Describe the different types of pulley arrangements: fixed, movable, and compound.
- Explain the mechanical advantage in pulley systems including block-and-tackle assemblies.
- Calculate ideal mechanical advantage and consider real-world factors like friction and rope stretch.
$3.00
Grade 8 Science | Submarine Ballast Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Explain how ballast systems control buoyancy and depth in submarines.
- Describe the effect of water intake and ejection on the submarine's density and buoyancy.
- Analyze how ballast tank volume and fluid density affect net buoyant force.
$3.00
Grade 8 Science – Gravity and Motion Worksheet(PDF + Answer Key)
Learning Objectives
- Understand how gravity influences the motion of objects in space.
- Identify orbital paths of planets, moons, comets, and asteroids.
- Explain the mutual gravitational attraction between celestial bodies.
$3.00
Grade 8 Climate Circulation Worksheet | NGSS Atmosphere & Global Winds
Learning Objectives
- Explain how unequal solar heating and Earth’s rotation help drive atmospheric circulation patterns (Hadley, Ferrel, and polar cells).
- Describe how the Coriolis effect influences wind direction and contributes to trade winds, monsoons, and other regional weather patterns.
- Connect major ocean circulation (gyres and thermohaline circulation) to regional climates and multi-year variability such as El Niño–Southern Oscillation.
$5.00
Grade 8 Science | Biomedical Flow Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Explain how fluid mechanics principles apply to blood transport in the circulatory system.
- Describe the effects of non-Newtonian blood properties on perfusion and flow resistance.
- Relate systolic and diastolic pressures to arterial function and health.
$3.00
Grade 8 Science | Regional Water System Case Study (Ontario) Worksheet
Learning Objectives
- Understand the dynamics of hydrologic cycle and watershed connectivity in large basins.
- Analyze governance challenges affecting water management across jurisdictions.
- Evaluate impacts of contaminant sources, nutrient loading, and invasive species on water systems.
$3.00
Grade 8 Science | Gear Trains Worksheet – Ontario Standards (PDF)
Learning Objectives
- Understand how gear ratios determine speed and torque multiplication in gear trains.
- Calculate the overall gear ratio in simple and compound gear systems.
- Explain the roles of spur gears and idler gears in changing direction and mechanical advantage.
$3.00
Grade 8 Science – Earth Materials and the Rock Cycle Worksheet(PDF + Answer Key)
Learning Objectives
- Identify different types of Earth materials
- Understand properties of rocks and minerals
- Describe the processes of the rock cycle
$3.00
Grade 8 Science – Membrane Structure Worksheet (Ontario) (PDF)
Learning Objectives
- Describe the components and architecture of cell membranes, including the phospholipid bilayer, proteins, cholesterol, and carbohydrates.
- Explain the functions of membrane proteins in transport, signaling, and structural support.
- Compare structural variations in membranes among different cell types, such as plant cells and specialized animal cells, and how these influence permeability and interactions with the environment.
$3.00
Grade 8 Science – Understanding Common Ancestry in Evolution (PDF + Answer Key)
Learning Objectives
- Analyze fossil records to identify transitional species
- Recognize homologous structures across different vertebrates
- Interpret molecular data to infer shared ancestry
$3.00
Grade 8 Science – Population Change Daily Worksheet(PDF + Answer Key)
Learning Objectives
- Understand factors that affect population size such as birth rates, death rates, immigration, and emigration.
- Identify biotic and abiotic influences on populations.
- Analyze how carrying capacity and feedback mechanisms stabilize populations.
$3.00
Grade 8 Science | Global Distribution Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Understand the proportions and distribution of freshwater and saline reservoirs around the world.
- Identify spatial patterns related to climate, topography, and geology in water storage.
- Analyze the limitations of accessible freshwater sources and their implications for human use.
$3.00
Energy Pathways Worksheet for Grade 8 Science – Ontario Standards
Learning Objectives
- Analyze and map energy transfer through mechanical and hydraulic subsystems.
- Identify points of energy conversion and quantify energy losses at each interface.
- Apply system principles to evaluate efficiency in real-world applications like conveyor and pump systems.
$2.00
Grade 8 Science – Population Effects on Earth Worksheet(PDF + Answer Key)
Learning Objectives
- Understand how human population growth influences environmental changes.
- Analyze cause-and-effect relationships between resource use and ecological impact.
- Evaluate data trends related to land use, emissions, and biodiversity loss.
$3.00
Grade 8 Science – Hydrologic Measurement Worksheet (Ontario Standards) (PDF)
Learning Objectives
- Identify different methods and instruments used for measuring water quantity and quality.
- Explain the importance of precision, temporal resolution, and sampling frequency in water monitoring.
- Interpret hydrographs and analyze water quality data over time.
$3.00
Grade 8 Science Worksheet – Measuring Density (PDF) Ontario Standards
Learning Objectives
- Understand various methods to measure the density of solids and liquids.
- Learn to apply formulas for calculating density and interpret measurement discrepancies.
- Identify sources of errors affecting density measurements, such as trapped air and temperature effects.
$3.00
Grade 8 Science – Osmotic Balance Worksheet (Ontario) – Science 1 (PDF)
Learning Objectives
- Explain water potential, tonicity, and cellular responses to hypotonic, isotonic, and hypertonic environments.
- Describe mechanisms that maintain turgor pressure in plant cells and volume control in animal cells.
- Identify and analyze osmotic adaptations like contractile vacuoles, membrane pumps, and extracellular fluid buffering.
$3.00
Grade 8 Science – Newtonian Motion Worksheet (PDF) Ontario Standards
Learning Objectives
- Explain Newton's three laws of motion and how they relate to mechanical systems.
- Quantitatively connect force, mass, and acceleration using F = ma.
- Describe examples of inertia and action-reaction pairs in simple mechanisms.
$3.00
Grade 8 Science Worksheet – Buoyant Force & Archimedes' Principle (Ontario)(PDF)
Learning Objectives
- Understand Archimedes' principle and how buoyant force relates to displaced fluid weight.
- Explain the difference between apparent weight in air and when submerged.
- Apply density relationships to determine whether objects will float, sink, or attain neutral buoyancy.
$3.00
Grade 8 Science – Modeling Data Worksheet(PDF + Answer Key)
Learning Objectives
- Understand the purpose of physical and computational models in science
- Identify different types of scientific models, including scale models and simulations
- Recognize limitations and sources of measurement uncertainty in models
$3.00
Grade 8 Science – Hydrologic Cycle Worksheet (Ontario) (PDF)
Learning Objectives
- Understand the processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, and runoff.
- Explain the role of solar energy and gravity in driving water fluxes and seasonal changes.
- Describe how water reservoirs like oceans, glaciers, and aquifers interact and impact freshwater availability.
$3.00
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