Grade 8 Science Worksheets

Learning Objectives

• Understand the basic concepts of ecological succession and how communities change over time.
• Differentiate between primary and secondary succession.
• Identify species traits and environmental factors that influence successional pathways.+ Show more

Learning Objectives

• Differentiate speed, velocity, and acceleration using correct scientific definitions.
• Identify whether a quantity is scalar or vector based on its definition.
• Interpret changes in motion from simple distance/position and time information.

Learning Objectives

• Describe how matter cycles between living organisms and the abiotic environment, focusing on processes like photosynthesis, respiration, and decomposition.
• Trace the movement of atoms such as carbon and water through ecosystems across producers, consumers, and decomposers.
• Explain the conservation of mass in biological processes and differentiate between organic and inorganic forms of matter.+ Show more

Learning Objectives

• Explain how scientific claims gain strength from quality evidence and consistent patterns.
• Distinguish between direct observations and measurements or models used as evidence.
• Evaluate whether a claim is supported by reasonable interpretations of data.

Learning Objectives

• Explain how natural resources are transformed into synthetic materials.
• Describe how processing and composition influence material properties.
• Compare properties of natural and synthetic materials, including environmental considerations.+ Show more

Learning Objectives

• Understand the different types of population dynamics including exponential growth, logistic regulation, and cyclical fluctuations.
• Explain the factors such as carrying capacity, reproductive strategies, and time lags that influence population trajectories.
• Apply knowledge of population cycles like snowshoe hare–lynx and forest insect outbreaks to real case studies.+ Show more

Learning Objectives

• Identify the four major tissue types and their defining features
• Describe how epithelial tissue structure supports its functions
• Explain how connective tissue provides flexibility and structural support+ Show more

Learning Objectives

• Explain how specialized tissues support organ system functions
• Describe how surface area improves material exchange
• Explain how diffusion supports gas exchange in lungs+ Show more

Learning Objectives

• Describe the structure of the phospholipid bilayer
• Explain how membrane proteins support transport and signalling
• Compare integral and peripheral membrane proteins+ Show more

Learning Objectives

• Understand the basic concepts of probability and variability in experimental data
• Interpret correlation coefficients and distributions in context
• Apply confidence notions and simple hypothesis-testing logic to analyze trends

Learning Objectives

• Identify common failure points in designs and explain how specific design features can lead to those failures.
• Describe how engineers balance trade-offs when improving a design (for example, strength vs. weight or safety vs. cost).
• Use evidence from testing or observations to revise a design while staying within constraints.

Learning Objectives

• Describe the roles of the cell membrane, cytoplasm, nucleus, mitochondria, and chloroplast in maintaining cell function and homeostasis
• Explain how compartmentalization helps organize chemical reactions inside cells
• Compare prokaryotic and eukaryotic cell structure and identify key similarities and differences

Learning Objectives

• Explain how a reference frame changes an observer’s measured speed for moving objects.
• Use relative velocity ideas to predict when two objects meet or when one overtakes another.
• Apply proportional relationships among distance, speed, and time within a chosen frame.

Learning Objectives

• Describe the components and interactions within physical and ecological systems.
• Explain how models and diagrams are used to represent system processes.
• Predict system responses to perturbations using conservation principles.+ Show more

Learning Objectives

• Understand how cell membranes control exchange between the inside and outside of cells through selective permeability.
• Identify the roles of proteins, pumps, and vesicular transport in membrane function.
• Explain how membrane composition and surface area influence diffusion and cell signaling.+ Show more

Learning Objectives

• Understand how observed speed depends on the reference frame.
• Apply proportional relationships among speed, distance, and time within different frames.
• Analyze simple scenarios involving two objects moving toward each other or crossing a stream to determine apparent speeds.+ Show more

Learning Objectives

• Describe the main components of the solar system, including planets, moons, asteroids, and comets.
• Explain the relative scale and composition of different celestial bodies in the solar system.
• Understand the orbital characteristics and gravitational interactions governing planetary motion.+ Show more

Learning Objectives

• Describe the compositional layers of Earth's atmosphere and their features.
• Explain the roles of ozone and greenhouse gases in atmospheric processes.
• Interpret pressure gradients and thermal profiles throughout atmospheric layers.+ Show more

Learning Objectives

• Identify different organisms involved in food webs
• Understand the roles of producers, consumers, and decomposers
• Explain how energy flows through a food web+ Show more

Learning Objectives

• Explain how static and kinetic friction differ and how each affects motion
• Use basic ideas of normal force and friction estimation to predict when sliding starts
• Describe how aerodynamic drag influences system performance as speed changes+ Show more

Learning Objectives

• Explain how center of gravity and buoyancy affect a floating body's stability.
• Describe how hull shape influences upright equilibrium and tipping moments.
• Calculate stability margins and analyze buoyancy shifts during loading changes.+ Show more

Learning Objectives

• Describe the differences between passive and active transport mechanisms in cell membranes.
• Explain how diffusion and osmosis contribute to maintaining cellular homeostasis.
• Identify factors affecting the rate of diffusion and osmosis across membranes.+ Show more

Learning Objectives

• Identify independent, dependent, and controlled variables in an experiment.
• Understand how control variables influence experiment outcomes.
• Learn methods to plan experiments with proper variable control.

Learning Objectives

• Identify the functions of key cell organelles such as mitochondria, chloroplasts, and lysosomes.
• Explain how organelle specialization supports cellular and tissue functions.
• Describe the variation in organelle abundance and form in different cell types.+ Show more

Learning Objectives

• Understand the concept of trophic levels and feeding relationships among consumers.
• Identify different feeding modes such as herbivory, omnivory, and carnivory within Alberta ecosystems.
• Analyze how feeding behaviors influence energy transfer and community interactions.+ Show more

Learning Objectives

• Describe the process of photosynthesis including light-dependent reactions and the Calvin cycle.
• Identify the structure of chloroplasts and the role of pigments in photosynthesis.
• Explain how environmental factors affect photosynthetic efficiency and cellular carbon flux.+ Show more

Learning Objectives

• Understand the difference between pure substances and mixtures.
• Identify examples of pure substances and mixtures from regional contexts.
• Classify materials based on their composition and characteristics.+ Show more

Learning Objectives

• Explain the principle of mass conservation in chemical reactions.
• Track atoms and mass in closed systems during reactions.
• Understand how microscopic atomic conservation relates to macroscopic mass measurements.+ Show more

Learning Objectives

• Explain the basic functions of the cell membrane in maintaining cellular health.
• Describe how small molecules and larger substances move across the cell membrane.
• Identify different transport mechanisms used by cells to regulate substance exchange.

Learning Objectives

• Describe glycolysis, the Krebs cycle, and oxidative phosphorylation as coordinated stages of aerobic respiration.
• Explain how mitochondria, proton gradients, and chemiosmosis work together to produce ATP.
• Compare aerobic respiration with anaerobic fermentation in terms of ATP yield and conditions required.+ Show more

Learning Objectives

• Understand how forces are represented as vectors with magnitude and direction.
• Identify and distinguish between gravitational, normal, frictional, and applied forces in various scenarios.
• Create free-body diagrams showing all forces acting on an object.+ Show more

Learning Objectives

• Identify the main roles of organelles in a cell (nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles).
• Explain how protein synthesis, processing, transport, and degradation connect across organelles.
• Use structure-function relationships to predict how organelle dysfunction affects cell performance.

Learning Objectives

• Compare epithelial, connective, muscle, and nervous tissues by their cell types and key structural features
• Explain how specialized structures (junctions, extracellular matrix, contractile apparatus, synapses) support specific functions
• Describe how tissue-level organization contributes to organ-level functions such as transport, movement, signal transmission, and structural support

Learning Objectives

• Understand the role of gravity in governing motions within the solar system and galaxies.
• Explain how mutual gravitational attraction influences orbital trajectories.
• Describe the concepts of centripetal acceleration and the balance between inertia and gravity.+ Show more

Learning Objectives

• Understand different forms of energy including kinetic, potential, elastic, thermal, chemical, and electrical.
• Recognize common transformations among energy types in everyday situations.
• Apply basic equations to compare kinetic and potential energy qualitatively.+ Show more

Learning Objectives

• Explain how grounding, insulation, and overload protection reduce electrical shock and fire risks.
• Describe how protective devices and correct component specifications support safe electrical system design.
• Evaluate environmental implications of electricity generation and consider trade-offs in local infrastructure decisions.

Learning Objectives

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

Learning Objectives

• Explain how particle motion affects gas pressure and temperature.
• Describe relationships between pressure, volume, and temperature in gases.
• Analyze how gases expand, compress, and diffuse under different conditions.+ Show more

Learning Objectives

• Describe how corrosion is a chemical change that produces new substances on materials.
• Explain how moisture, oxygen, and salt (salinity) can speed up corrosion in everyday infrastructure.
• Identify evidence that corrosion has occurred and predict how protective measures can reduce degradation.+ Show more

Learning Objectives

• Explain how crossing over and random assortment during meiosis create genetic variation in gametes.
• Describe why offspring do not inherit identical combinations of alleles from each parent.
• Connect genetic variation to the raw material needed for evolution over time.

Learning Objectives

• Describe biodiversity at genetic, species, and ecosystem levels
• Explain how species richness, evenness, and diversity indices are used to measure biodiversity
• Evaluate how sampling methods and environmental variation can change biodiversity estimates+ Show more

Learning Objectives

• Understand the concept of exponential population growth and its patterns.
• Identify factors influencing population size, including biotic and abiotic factors.
• Analyze how carrying capacity and resource limitations affect population dynamics.+ Show more

Learning Objectives

• Identify the different types of chemical reactions based on atom rearrangement patterns.
• Describe the characteristic features of synthesis, decomposition, single displacement, double displacement, and combustion reactions.
• Recognize examples of each reaction type and understand the common pathways of atomic rearrangement in chemical processes.+ Show more

Learning Objectives

• Understand the different drivers influencing global temperature changes.
• Analyze evidence from paleoclimate and modern records to identify causal factors.
• Assess the role of natural versus human activities in climate change.+ Show more

Learning Objectives

• Explain the principle of conservation of mass in physical and chemical changes.
• Describe how mass remains constant in closed systems during reactions.
• Apply the concept of mass conservation to real-world Alberta contexts such as industrial processes and environmental assessments.

Learning Objectives

• Understand the difference between elastic and inelastic collisions.
• Explain how energy is transferred and transformed during collisions.
• Describe the role of momentum in collision outcomes.+ Show more

Learning Objectives

• Explain how force and displacement determine work
• Calculate work for constant forces using force and displacement
• Apply the work–energy theorem to kinetic energy changes+ Show more

Learning Objectives

• Describe how electrical energy transforms into thermal, radiant (light), and mechanical energy in common devices
• Explain why efficiency matters by relating useful power output to total input power
• Identify where energy losses occur in circuits and power transmission+ Show more