Grade 8 Worksheets

Learning Objectives

• Understand the concept of predation and how it affects prey populations
• Identify different types of species interactions in ecosystems
• Explain the role of predators in maintaining ecological balance

Learning Objectives

• Distinguish between kinetic energy and potential energy using examples from real-world motion
• Explain how gravitational potential energy changes as an object’s height changes
• Use conservation of energy to describe how total mechanical energy can remain constant while energy shifts between forms

Learning Objectives

• Explain how scientific inquiry uses observations and questions to form testable explanations.
• Distinguish evidence-based claims from opinions and identify how data supports an explanation.
• Use appropriate methods and careful recording to compare results with existing knowledge.

Learning Objectives

• Explain how engineering models connect inputs to expected outputs in a system.
• Describe how prototype measurements can reveal differences from model predictions.
• Use evidence to refine a model and improve a design through iterative testing.+ Show more

Learning Objectives

• Describe the Earth's axial tilt and its impact on seasonal variations.
• Explain the relative positions of the Earth, Sun, and Moon during lunar phases and eclipses.
• Identify how orbital geometry influences seasonal changes and sky patterns.

Learning Objectives

• Explain how free-body diagrams represent all forces acting on an object as vectors
• Distinguish between balanced and unbalanced net forces and predict motion accordingly
• Identify and draw contact and non-contact forces (normal force, tension, friction, and gravity)+ Show more

Learning Objectives

• Explain how planetary density, composition, and surface characteristics provide evidence for differentiation and heat history
• Analyze how orbital patterns and the arrangement of planets and small bodies reflect early gravitational interactions
• Use observational evidence (craters, volcanic landforms, rings, and moons) to make and compare claims about why solar system features differ

Learning Objectives

• Calculate density from mass and volume using appropriate units.
• Use displacement and overflow methods to determine the volume of irregular objects.
• Analyze measurement precision, uncertainty, and significant figures when reporting density.+ Show more

Learning Objectives

• Identify key differences between plant and animal cells
• Understand structural features of eukaryotic and prokaryotic cells
• Describe functions of cell components such as cell walls, chloroplasts, vacuoles, lysosomes, and centrioles+ Show more

Learning Objectives

• Understand the concept of energy transfer between trophic levels.
• Recognize why energy transfer is inefficient and the consequences for ecosystems.
• Identify the typical efficiency ranges for energy transfer between different trophic levels.+ Show more

Learning Objectives

• Identify the structure of chloroplasts and their role in photosynthesis.
• Understand the process of light-dependent reactions and the Calvin cycle.
• Recognize the factors influencing photosynthetic efficiency.

Learning Objectives

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

Learning Objectives

• Identify and describe different energy types present in mechanical systems.
• Explain the roles of kinetic and potential energy in system behavior.
• Recognize how energy is stored in springs and elevated masses.+ Show more

Learning Objectives

• Explain how a pendulum transfers energy between gravitational potential energy and kinetic energy during a swing.
• Describe how friction and air resistance reduce mechanical energy and affect the motion over time.
• Use variables like amplitude, mass, and length to predict changes in a pendulum’s energy and period.

Learning Objectives

• Explain how mechanical energy transforms into less useful forms due to friction, air resistance, and inelastic deformation.
• Describe efficiency and relate it to energy losses in real mechanical systems.
• Identify common energy-dissipation mechanisms and predict how they affect motion and performance.

Learning Objectives

• Understand and explain Newton's three laws of motion.
• Identify real-world examples demonstrating Newton's laws.
• Predict the effects of forces on objects in regional scenarios.+ Show more

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

• Define ecosystem stability and understand its features.
• Identify how ecosystems recover from disturbances.
• Recognize key interactions and processes that maintain stable ecosystems.

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

• Understand the concept of independent, dependent, and control variables in scientific studies.
• Learn how to identify different types of variables in an experiment.
• Recognize the importance of controlling variables to ensure fair and reliable results.+ Show more

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 the components of static systems and how forces are decomposed.
• Identify external versus internal forces in physical systems.
• Calculate net forces and assess system equilibrium or acceleration.+ Show more

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

• Explain the relative positions and motions of the Earth, Sun, and Moon that cause observable cyclic phenomena.
• Describe how axial tilt and orbital geometry lead to seasonal changes and eclipses.
• Model lunar phases and understand their regular sequence based on the Earth's and Moon's movements.+ 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