Grade 8 Science Worksheets

Learning Objectives

• Define key components of experimental design.
• Identify variables involved in experiments.
• Understand the importance of controls and replication.+ Show more

Learning Objectives

• Understand the importance of clear scientific communication.
• Interpret scientific explanations and data effectively.
• Construct concise summaries using claim–evidence–reasoning structure.+ Show more

Learning Objectives

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

Learning Objectives

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

Learning Objectives

• Understand how to evaluate the credibility of scientific claims.
• Learn to assess the quality of evidence presented in scientific studies.
• Identify logical fallacies and differentiate correlation from causation.+ Show more

Learning Objectives

• Understand basic probability concepts and variability measures.
• Interpret correlation coefficients and distributions in experimental data.
• Select appropriate summary statistics for analyzing trends.+ Show more

Learning Objectives

• Explain how human land use, resource extraction, and urban expansion can change habitat structure and species interactions.
• Describe how irrigation and wetland drainage can affect nutrient cycles and freshwater ecosystems in Alberta watersheds.
• Evaluate how invasive species and cumulative watershed effects can disrupt ecological balance.+ Show more

Learning Objectives

• Understand the distribution and classification of renewable and nonrenewable resources.
• Analyze the environmental impacts of resource extraction and methods for resource assessment.
• Explore sustainable management practices, reuse, conservation, and technological roles in resource recovery.+ Show more

Learning Objectives

• Identify evidence of chemical change in a text about corrosion
• Explain how moisture and salinity can affect the rate and products of corrosion
• Connect protective measures to the chemical reactions involved in corrosion

Learning Objectives

• Identify observable signs of chemical and physical changes.
• Distinguish between chemical and physical transformations based on evidence.
• Explain examples such as rusting and effervescence to classify reactions.+ Show more

Learning Objectives

• Explain how scientific evidence supports a cause-and-effect relationship or a causal mechanism.
• Distinguish correlation from causation when developing scientific explanations.
• Use models and multiple lines of evidence to strengthen explanations about natural phenomena.

Learning Objectives

• Understand how observable traits are influenced by genetic instructions and gene variations.
• Explain patterns of dominant and recessive traits and their inheritance across generations.
• Analyze how similarities among related organisms provide evidence of heredity.+ Show more

Learning Objectives

• Explain why accurate and precise measurements matter in science investigations.
• Choose appropriate tools and units to measure a physical quantity and record results consistently.
• Describe how significant figures and calibration reduce measurement error.+ Show more

Learning Objectives

• Analyze natural hazard data by looking for patterns, frequency, and magnitude.
• Use evidence from historical and instrumental records to estimate risk and recurrence intervals.
• Interpret hazard information to support forecasting, mitigation decisions, and infrastructure planning.

Learning Objectives

• Explain how plate tectonics and sedimentation influence where mineral and energy resources form.
• Describe how geologic structures affect where oil and other hydrocarbons are trapped.
• Compare confined and unconfined aquifers and explain why groundwater accessibility and quality vary.

Learning Objectives

• Understand factors influencing population dynamics, including carrying capacity and feedback mechanisms.
• Analyze case studies of invasive species, overharvesting, and drought effects on populations.
• Interpret population graphs and birth/death rate trends to assess population stability and oscillations.+ Show more

Learning Objectives

• Understand how chemical bonds are involved in energy changes during reactions.
• Identify differences between endothermic and exothermic reactions based on energy profiles.
• Explain how bond enthalpies influence temperature changes during chemical reactions.+ Show more

Learning Objectives

• Interpret graphical data and identify performance trends in design testing
• Analyze test results to determine effective design features
• Understand trade-offs among different performance metrics+ Show more

Learning Objectives

• Understand how reversible equilibria influence observable properties in chemical systems.
• Apply conservation of mass principles across interconnected reaction pathways.
• Interpret microscopic reaction mechanisms with mass relationships in multi-step reactions.+ Show more

Learning Objectives

• Describe the mechanisms involved in plate tectonics, including processes like subduction, rifting, and continental collision.
• Identify landforms and geological features resulting from plate movements such as mountains, ocean basins, and volcanic arcs.
• Explain the evidence supporting plate tectonics, including seafloor spreading, magnetic striping, and paleomagnetic records.+ Show more

Learning Objectives

• Identify the main idea and key details about how energy enters ecosystems.
• Explain how energy moves from producers to consumers and how some energy is lost at each step.
• Describe the role of decomposers/detritivores in returning matter and supporting energy flow.

Learning Objectives

• Understand the processes that generate new species through genetic divergence and reproductive isolation.
• Recognize the role of geographic isolation and environmental change in speciation and extinction.
• Identify evidence from fossils and genetics that document diversification events and mass extinctions.+ Show more

Learning Objectives

• Calculate fluid density using given mass and volume measurements.
• Explain floating and sinking using differences in density.
• Compare the viscosity of different liquids.+ Show more

Learning Objectives

• Identify organism adaptations to freshwater and marine environments.
• Explain how environmental conditions affect aquatic populations.
• Describe human impacts on aquatic habitats and organisms.+ Show more

Learning Objectives

• Explain how force and surface area influence fluid pressure.
• Compare force transfer in hydraulic and pneumatic systems.
• Describe how fluid compressibility affects device operation.+ Show more

Learning Objectives

• Identify scientific questions related to freshwater and saltwater problems.
• Develop predictions that guide scientific investigations.
• Interpret observations to explain changes in water systems.+ Show more

Learning Objectives

• Compare how moving water, waves and tides reshape landforms.
• Identify evidence of erosion, transportation and deposition.
• Explain how glaciers contribute to landscape changes.+ Show more

Learning Objectives

• Compare freshwater and saltwater sources and their availability.
• Explain why available water may be unsafe to drink.
• Identify dissolved substances, suspended materials and biological contamination.+ Show more

Learning Objectives

• Identify domestic, agricultural, and industrial impacts on watershed systems.
• Explain how human activities affect water quantity and quality.
• Compare prevention, treatment, and monitoring strategies using evidence.+ Show more

Learning Objectives

• Compare how fluid properties influence practical applications.
• Explain how flow affects fluid use in different systems.
• Describe the importance of compressibility in engineered devices.+ Show more

Learning Objectives

• Compare force ratios with speed or distance ratios in machines
• Use work and energy information to compare machine performance
• Distinguish ideal performance from measured machine performance+ Show more

Learning Objectives

• Distinguish pure substances, mixtures, and solutions using particle models.
• Explain concentration in real-world mixtures and solutions.
• Compare factors affecting dissolving speed and solubility.+ Show more

Learning Objectives

• Explain how technologies correct, record, or extend human vision
• Distinguish optical image formation from digital image recording
• Compare benefits and limitations of vision technologies+ Show more

Learning Objectives

• Compare reflection, transmission and refraction in optical systems
• Explain light-path changes using evidence about materials and boundaries
• Interpret ray diagrams as models of light paths+ Show more

Learning Objectives

• Explain how confined fluid pressure transmits force through a system
• Compare liquid and gas behaviour in mechanical systems
• Relate piston movement and force to mechanical advantage+ Show more

Learning Objectives

• Evaluate evidence about optical systems using observations and measurements
• Explain how evidence supports or challenges an optical design
• Explain how evidence can guide improvements to optical designs+ Show more

Learning Objectives

• Identify measurable criteria for evaluating mechanical designs
• Compare effectiveness and efficiency of competing machines
• Evaluate effects of designs on people and the environment+ Show more

Learning Objectives

• Analyze devices as systems of interacting components and subsystems
• Identify how simple machines change force or motion
• Explain how linkages and transmission elements affect motion+ Show more

Learning Objectives

• Identify predictions, observations and data in scientific investigations
• Evaluate evidence used to support scientific conclusions
• Explain how uncertainty affects interpretations of scientific evidence+ Show more

Learning Objectives

• Explain how lenses form or magnify images
• Compare optical functions of eyes and cameras
• Compare how microscopes and telescopes extend observation+ Show more

Learning Objectives

• Explain diffusion or osmosis caused by concentration differences
• Connect cell boundary exchange to tissue and organ functions
• Compare specialized structures organisms use for material exchange+ Show more

Learning Objectives

• Explain how multiple body systems cooperate during activity
• Trace oxygen through organs and tissues to working cells
• Trace nutrients through organs and tissues to working cells+ Show more

Learning Objectives

• Explain mechanical system success or failure using evidence
• Interpret observations and measurements from mechanical systems
• Compare alternative explanations supported by engineering evidence+ Show more

Learning Objectives

• Analyze predictions and observations from real-world fluid investigations.
• Interpret scientific data to support explanations about fluids.
• Compare evidence, uncertainty and alternative scientific explanations.+ Show more

Learning Objectives

• Compare cell observations from documented scientific investigations
• Explain evidence supporting cells as basic units of life
• Compare evidence from plants, animals and single-celled organisms+ Show more

Learning Objectives

• Identify how evidence can change scientific understanding of human health
• Distinguish research findings from broader health claims
• Compare how investigations use biological and population evidence+ Show more

Learning Objectives

• Compare historical explanations of how light and vision interact
• Evaluate ray models using observations and optical evidence
• Explain how light, objects, and the eye enable vision+ Show more

Learning Objectives

• Understand the principles of force, motion, and energy in mechanical systems.
• Analyze how net force affects motion outcomes like speed and acceleration.
• Evaluate the efficiency of mechanical systems considering energy transfer and constraints.+ Show more