Grade 8 Science Worksheets

Learning Objectives

• Explain density as a derived property that relates mass to volume and use it to compare materials.
• Predict whether objects float or sink by comparing an object’s density to the density of a surrounding fluid.
• Describe how buoyant force and displaced fluid volume relate to sinking, floating, and layering.

Learning Objectives

• Understand how motion can be segmented into parts with different speeds and durations.
• Apply proportional reasoning to calculate average speed over multi-segment trips.
• Analyze how slower segments disproportionately affect overall average speed compared to faster segments.+ Show more

Learning Objectives

• Define mass and weight and distinguish between them.
• Explain how gravitational force affects weight but not mass.
• Apply the concepts of mass and weight using real-world examples.

Learning Objectives

• Identify different weather conditions.
• Recognize key atmospheric variables such as temperature, humidity, and pressure.
• Understand the difference between weather and climate.+ Show more

Learning Objectives

• Identify major chemical reaction types and describe how atoms rearrange in each type.
• Match common reaction descriptions to the correct reaction category (synthesis, decomposition, displacement, and combustion).
• Predict likely products at a basic level using patterns of bond-making and bond-breaking.

Learning Objectives

• Explain how human activities can alter the balance of energy and matter in Earth systems (atmosphere, hydrosphere, and geosphere).
• Describe how greenhouse-gas emissions, land-use changes, and vulnerability can influence climate patterns and natural hazards.
• Evaluate environmental solutions by using evidence and considering tradeoffs.

Learning Objectives

• Construct and interpret ecosystem system diagrams that show biotic and abiotic components, trophic connections, and disturbance effects.
• Use quantitative stock-and-flow ideas to explain how changes propagate through an ecosystem over time.
• Identify appropriate model boundaries, variables, and scale to support reasoning about resilience, equilibrium, and temporal dynamics.

Learning Objectives

• Understand different types of evidence used in scientific testing
• Identify qualitative and quantitative evidence from observations and measurements
• Learn how evidence supports scientific conclusions and connects design to actual performance

Learning Objectives

• Explain how indicator properties such as pH, electrical conductivity, density, and refractive index can change during chemical reactions.
• Use measured property changes as evidence for chemical transformation rather than physical mixing.
• Connect changes in properties to what must be happening at the particle level, such as ion formation or rearrangement of particles.

Learning Objectives

• Identify properties of melting and describe energy transfer during melting
• Recognize examples of melting in everyday life
• Explain the energy changes involved in phase changes+ Show more

Learning Objectives

• Identify components of a food web: producers, consumers, decomposers
• Describe energy transfer between trophic levels
• Explain the concept of ecological efficiency and energy loss in food chains+ Show more

Learning Objectives

• Distinguish physical changes from chemical changes using observable evidence.
• Identify evidence of chemical change such as new substances, colour shifts, energy transfer, and gas production.
• Apply evidence-based reasoning to examples common in Alberta environments.

Learning Objectives

• Define speed, velocity, and acceleration and understand their differences.
• Recognize examples of motion involving speed, velocity, and acceleration in everyday life.
• Interpret data from distance and time tables to analyze motion.+ Show more

Learning Objectives

• Explain how pressure gradients, viscosity, and vessel diameter affect blood flow in the body using fluid mechanics ideas.
• Describe how blood’s non-Newtonian behavior can change perfusion in small vessels.
• Predict how stenosis (narrowing) alters flow rate and pressure drop using simplified pipe-flow reasoning.+ Show more

Learning Objectives

• Understand different types of species interactions: competition, predation, mutualism, commensalism, and parasitism.
• Recognize how these interactions influence ecosystem stability and biodiversity.
• Identify examples of symbiotic relationships and their benefits.+ Show more

Learning Objectives

• Calculate density using mass and volume and interpret the units correctly.
• Use displacement and overflow methods to find the volume of irregular solids.
• Explain how precision, uncertainty, and significant figures affect measured density.+ Show more

Learning Objectives

• Define and distinguish between mixtures and pure substances.
• Explain how solutions are formed and what factors affect solubility.
• Identify common separation techniques such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Identify evidence of chemical change by linking observable properties (color change, gas production, precipitate formation, temperature change) to what happens at the particle level.
• Analyze and compare qualitative and quantitative data from reactions to decide whether a process is a chemical reaction or physical mixing.
• Use reaction evidence to explain common examples such as corrosion, combustion, and acid-base interactions.

Learning Objectives

• Understand methods to analyze and interpret quantitative data such as mean, median, mode, and rate calculations.
• Apply data analysis techniques to real-world scientific contexts like velocity, reaction rates, and density trends.
• Interpret graphs and analyze uncertainties, using statistical reasoning to evaluate hypotheses and support evidence-based conclusions.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the role of keystone species like migratory fish in ecosystems
• Analyze how abiotic factors affect population dynamics
• Explore human impacts such as pollution and habitat fragmentation+ Show more

Learning Objectives

• Identify renewable resources and understand their characteristics.
• Differentiate between renewable and nonrenewable resources.
• Recognize the environmental impacts of resource extraction and use.+ Show more

Learning Objectives

• Understand the principle of energy conservation in physical systems
• Identify how energy transforms between different forms during motion
• Explain real-world examples of energy conservation such as roller coasters

Learning Objectives

• Understand the basic structure of atoms and how they form elements.
• Differentiate between elements based on atomic number and structure.
• Relate atomic structures to properties of substances such as conductivity and brittleness.

Learning Objectives

• Understand how human activities affect Earth's systems through resource use.
• Identify causes and effects of resource extraction, pollution, and land conversion.
• Analyze the connection between human choices and environmental changes.+ Show more

Learning Objectives

• Understand the principles of filtration and particle size differences
• Identify different separation techniques based on physical properties
• Learn applications of filtration in water treatment and mineral processing+ Show more

Learning Objectives

• Describe the different types of energy involved in a pendulum's swing
• Explain how energy transforms during the pendulum's movement
• Identify factors affecting the energy distribution and period of a pendulum+ Show more

Learning Objectives

• Understand how water movement influences Earth's surface through erosion, transport, and deposition.
• Identify the processes that shape landforms such as valleys, deltas, and layered deposits.
• Explain how tectonic uplift and water cycling interact to modify landscapes.+ Show more

Learning Objectives

• Understand the definition of fluid pressure
• Recognize SI units of pressure
• Differentiate between surface contact pressure and internal fluid pressure+ Show more

Learning Objectives

• Describe the roles of different simple machines in modifying force and motion.
• Identify common simple machines like lever, pulley, inclined plane, wheel and axle, wedge, and screw.
• Explain the concept of mechanical advantage and how it relates to simple machines.+ Show more

Learning Objectives

• Identify the difference between observations, claims, and assumptions in science questions.
• Write and evaluate testable questions that can be supported or refuted with measurable evidence.
• Use clear variables and measurable outcomes to distinguish what evidence counts in an investigation.

Learning Objectives

• Understand basic concepts of ecological models
• Identify components of ecosystem frameworks
• Interpret model outputs and recognize assumptions+ Show more

Learning Objectives

• Understand the flow of energy through ecosystems from producers to consumers.
• Explain how energy is transferred and lost at each trophic level.
• Describe the roles of food chains and energy pyramids in illustrating energy transfer.+ Show more

Learning Objectives

• Understand different forms of energy and their transfer within a system
• Explain how total energy remains constant during energy transfers
• Identify real-world examples of energy conservation, such as roller coasters+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Identify the main stages of the water cycle
• Understand how water moves through different Earth systems
• Recognize the processes of evaporation, condensation, and precipitation+ Show more

Learning Objectives

• Explain how feedback helps organisms maintain stable internal conditions (homeostasis).
• Identify the roles of receptors, control centers, and effectors in a homeostasis system.
• Describe how negative feedback works using examples such as temperature and blood sugar regulation.+ Show more

Learning Objectives

• Understand the process of photosynthesis and its components.
• Identify the inputs and outputs of photosynthesis.
• Explain how photosynthesis supports cellular activities.

Learning Objectives

• Trace energy flow from an input source through coupled mechanical components and identify where energy is converted.
• Calculate net useful energy transfer using power/energy ideas and estimate losses across interfaces.
• Explain how system design choices (gear ratios, pulley layout, and fluid components) affect efficiency and reliability.

Learning Objectives

• Understand how evidence from observations and measurements is used to develop solutions.
• Identify different types of evidence, including qualitative and quantitative data.
• Compare data against criteria to judge the effectiveness of solutions.+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems rather than being used up once
• Describe key pathways in the water, carbon, and nitrogen cycles
• Connect decomposition to the return of nutrients that producers need

Learning Objectives

• Understand how inherited traits influence adaptation and survival.
• Identify examples of adaptation responding to environmental pressures.
• Explain how population traits change over generations due to natural selection.+ Show more

Learning Objectives

• Identify different types of graphs and their purposes.
• Understand how to interpret data from various visual representations.
• Learn to select appropriate graph types for different datasets.+ Show more

Learning Objectives

• Define homogeneous mixtures and distinguish them from heterogeneous mixtures.
• Explain the concept of solubility and factors affecting it.
• Identify examples of homogeneous mixtures in daily life and environmental contexts.+ Show more

Learning Objectives

• Identify factors that influence population size and distribution
• Understand concepts of carrying capacity and limiting resources
• Analyze reproductive rates and mortality patterns+ Show more

Learning Objectives

• Explain how atoms and molecules make up matter and how bonding relates to chemical properties.
• Describe how chemical reactions rearrange which atoms are bonded while conserving atoms overall.
• Interpret simple diagrams or formulas showing reactants and products in a reaction.

Learning Objectives

• Explain how keystone species connect freshwater and marine food webs.
• Describe how abiotic changes and human activities can interact to affect population size and genetics.
• Evaluate trade-offs in conservation decisions using evidence from an integrated case study.

Learning Objectives

• Understand how igneous rocks form from cooling magma
• Identify the properties of igneous rocks
• Describe the process of rock formation under Earth's crust