Grade 8 Science Worksheets

Learning Objectives

• Explain how particle motion at different temperatures affects gas pressure
• Use the particle model to describe how collisions create pressure on container walls
• Predict how changes in temperature affect pressure when volume is kept the same

Learning Objectives

• Explain how net force affects acceleration when mass is held constant.
• Describe how increasing mass changes an object's motion when net force is the same.
• Use qualitative proportional reasoning (doubling net force, tripling mass) to predict changes in acceleration.

Learning Objectives

• Understand the concept of genetic diversity and its importance for populations.
• Identify factors that influence genetic variation within species.
• Explain the consequences of low genetic diversity on species survival.+ Show more

Learning Objectives

• Describe particle theory: matter is made of tiny particles.
• Explain how particle motion and spacing relate to the properties of solids, liquids, and gases.
• Use Alberta examples to connect temperature to particle motion and state changes.

Learning Objectives

• Explain how observations and measurements become evidence for a design or claim.
• Compare data from testing to stated criteria to judge whether a solution works.
• Use both quantitative and qualitative evidence to strengthen confidence in results.

Learning Objectives

• Explain how contact time and force magnitude during a collision affect changes in motion
• Describe how deformation can absorb energy during short collisions
• Identify observable effects that relate to the peak force during contact

Learning Objectives

• Explain mechanical energy as the sum of kinetic and potential energy
• Describe how energy transfers occur when forces do work
• Identify how friction and air resistance can convert mechanical energy into thermal energy

Learning Objectives

• Analyze the components of forces acting on slopes by resolving gravity into perpendicular and parallel components.
• Understand how slope steepness affects unbalanced forces and potential acceleration.
• Apply vector decomposition concepts to real-world inclined scenarios.

Learning Objectives

• Explain why calibration and instrument accuracy affect motion and force measurements.
• Estimate uncertainty and interpret results using significant figures.
• Compare repeatability and reliability when measurements change across trials.+ Show more

Learning Objectives

• Explain how forces (pushes and pulls) change an object’s motion, including speed and direction
• Determine how balanced and unbalanced forces relate to stable motion or changes in velocity
• Use the idea of net force to predict the direction and effect of forces acting on an object

Learning Objectives

• Explain how density-dependent factors affect population size through changes in competition, disease, and social behavior.
• Compare density-dependent and density-independent factors and predict how each can influence population change.
• Use examples from Alberta habitats to describe how weather and habitat conditions regulate populations.+ Show more

Learning Objectives

• Identify observable reaction signatures of chemical change (temperature change, precipitate, colour change, gas release).
• Explain how combining multiple indicators increases confidence that a chemical change occurred.
• Apply reaction-signature ideas to environmental and industrial examples.

Learning Objectives

• Represent forces acting on an object using a free-body diagram with correct directions and relative sizes
• Identify and interpret the gravitational, normal, frictional, and applied forces in real-world scenarios
• Determine the direction of net force by reasoning with vector arrows (without focusing on calculations)

Learning Objectives

• Differentiate endothermic and exothermic reactions using evidence from the surroundings’ temperature changes.
• Explain energy changes using a particle and bonding model (breaking bonds vs. forming bonds) rather than an external energy “source.”
• Use correct vocabulary (thermal energy, surroundings, bonds, reactants, products) to describe energy flow in reactions.

Learning Objectives

• Explain how technology choices can affect people and the environment across a product’s life cycle.
• Identify trade-offs between benefits and harms when evaluating technological solutions.
• Use evidence to justify whether a technology decision is responsible and sustainable.

Learning Objectives

• Identify clues that show whether a change is physical or chemical.
• Classify described evidence from a text using the properties of matter.
• Explain how physical and chemical changes differ using evidence such as state, new substances, and observable energy or gas effects.

Learning Objectives

• Identify the main idea of a passage about how materials respond to magnetic fields
• Use key vocabulary terms related to diamagnetic, paramagnetic, and ferromagnetic materials
• Explain, using evidence from a passage, how domain alignment affects remanence and coercivity

Learning Objectives

• Describe the hierarchy of cell organization from cells to organ systems
• Explain how similar cells form tissues with shared functions
• Connect how tissues combine to form organs and how organs work within systems

Learning Objectives

• Explain how particle arrangement affects the properties of solids, liquids, and gases
• Use evidence from bonding strength and energy to describe why states behave differently
• Relate state properties to everyday Alberta examples (ice on lakes, oil viscosity, and atmospheric gas behavior)

Learning Objectives

• Understand the concept of balanced and unbalanced forces.
• Identify examples of static and dynamic equilibrium.
• Explain how balanced forces result in no change in motion.+ Show more

Learning Objectives

• Explain how runoff, erosion, transport, and deposition reshape Earth’s surface.
• Describe how groundwater affects springs and contributes to weathering.
• Relate slope (gradient) and drainage patterns to where sediment accumulates.+ Show more

Learning Objectives

• Explain how habitat reclamation, riparian buffer creation, and species reintroductions restore ecological function and connectivity.
• Describe how soil amendment and recontouring support revegetation after land disturbance.
• Interpret monitoring metrics to evaluate restoration progress over time.+ Show more

Learning Objectives

• Describe how human land use can change habitat structure and ecosystem interactions
• Explain how water diversion and wetland drainage can affect nutrient cycles and species
• Identify evidence of cumulative effects in a watershed and suggest mitigation actions+ Show more

Learning Objectives

• Understand how igneous rocks form from cooling magma.
• Identify the characteristics of igneous, sedimentary, and metamorphic rocks.
• Learn how physical properties of minerals reflect their composition.+ Show more

Learning Objectives

• Explain what biodiversity means at the genetic, species, and ecosystem levels and why it matters for ecosystem health.
• Describe how scientists use species richness, evenness, and diversity indices to measure biodiversity.
• Evaluate how sampling methods, habitat differences, and time can affect biodiversity estimates and comparisons.

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

• 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

• 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

• 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

• 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

• 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

• 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

• 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

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

• 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 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 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

Learning Objectives

• Explain how scientific models link ideas to observed phenomena through stated assumptions and predicted outcomes
• Identify variables and outcomes in a predictive model and describe what evidence would test the model
• Use a model to make qualitative predictions about patterns in data and justify whether data supports the model

Learning Objectives

• Classify materials as pure substances (elements or compounds) or mixtures based on composition and bonding.
• Describe how physical separation methods apply to mixtures versus pure substances.
• Use classification to select appropriate analysis approaches for environmental and industrial samples.

Learning Objectives

• Explain how invasive species can disrupt native biodiversity, competition, and energy/nutrient pathways
• Describe how invasive species can change hydrology and food-web structure
• Identify common pathways and ecological consequences of invasive plants and aquatic organisms

Learning Objectives

• Identify the key parts of the water cycle.
• Understand how water moves between air, land, and subsurface resources.
• Explain the processes that transfer water in Earth's systems.

Learning Objectives

• Explain Newton’s three laws in terms of force, motion, and mass
• Predict how changes in force affect an object’s acceleration and direction
• Use action–reaction pairs to describe forces between two interacting objects

Learning Objectives

• Identify key components of ecological models such as trophic levels and nutrient pools.
• Explain how models represent the movement of matter and energy within ecosystems.
• Interpret model outputs and recognize their assumptions and limitations.+ Show more