Grade 8 Science Worksheets

Learning Objectives

• Explain how watershed boundaries and drainage basins affect where water flows after precipitation.
• Describe how land cover, slope, and soil type influence infiltration and overland runoff.
• Connect storage areas (lakes, wetlands, floodplains) to changes in flow over time and downstream impacts.

Learning Objectives

• Describe how electric power grids move energy from generation to distribution using transmission and transformers.
• Explain how grids manage supply and demand in real time to support reliability.
• Identify regional factors that affect generation mix and the challenges of intermittency.+ Show more

Learning Objectives

• Identify producers, consumers, and decomposers in a food web
• Understand trophic levels and energy transfer
• Recognize examples of food chains in different ecosystems+ Show more

Learning Objectives

• Understand the components and interactions within physical and ecological systems.
• Explain how models and diagrams help in predicting system behaviors.
• Describe the conservation of mass and energy in different systems.+ Show more

Learning Objectives

• Understand how ballast tanks control buoyancy in submarines
• Explain the process of water intake and ejection in ballast tanks
• Describe the concepts of neutral buoyancy and stability during submersion+ Show more

Learning Objectives

• Identify what change causes electromagnetic induction.
• Describe how the rate of flux change and coil turns affect induced voltage.
• Explain why changing magnetic fields can produce voltage in nearby conductors.

Learning Objectives

• Explain how particle motion relates to temperature changes in matter.
• Describe how energy transfer affects states of matter such as melting, boiling, and condensation.
• Relate microscopic particle behavior to macroscopic temperature measurements.

Learning Objectives

• Explain how aerobic respiration converts chemical energy into ATP through coordinated stages
• Describe the role of mitochondria, proton gradients, and chemiosmosis in ATP production
• Compare aerobic pathways to anaerobic fermentation and predict how oxygen availability affects metabolism

Learning Objectives

• Understand how human activities impact natural habitats
• Identify the effects of habitat fragmentation on ecosystems
• Analyze land use patterns and their long-term consequences

Learning Objectives

• Explain how density helps predict whether an object will sink or float in a fluid.
• Use comparisons of object density and fluid density to justify buoyant behavior.
• Describe how buoyant force relates to displaced fluid and forces acting on objects.

Learning Objectives

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

Learning Objectives

• Explain how DNA stores hereditary information and is used as instructions inside cells
• Describe how genes and chromosomes relate to the production of proteins
• Connect DNA changes (mutations) to changes in protein production and inherited traits+ Show more

Learning Objectives

• Explain how latitude affects the angle of incoming solar energy and influences regional climate
• Describe how atmospheric circulation, ocean currents, greenhouse gases, and surface reflectivity contribute to climate patterns
• Use evidence-based reasoning to connect climate drivers to short-term weather differences and long-term climate shifts

Learning Objectives

• Explain how plate movement can cause earthquakes and volcanic eruptions by describing energy release in Earth’s interior.
• Identify patterns in where earthquakes and volcanoes occur and relate them to tectonic hazards.
• Compare primary and secondary effects of seismic and volcanic events, such as landslides and tsunamis.

Learning Objectives

• Explain how adaptations help organisms survive in specific environments.
• Describe natural selection as a process involving variation, inheritance, and differential survival.
• Use evidence from an example to predict how traits may change over generations.

Learning Objectives

• Explain conservation of energy in a defined system using kinetic, potential, and thermal energy
• Describe how energy is transferred or converted during collisions and gravity-driven motion
• Use an energy accounting model to predict changes in speed, temperature, and motion over time+ Show more

Learning Objectives

• Identify the main goals of ecological restoration.
• Describe how habitat, soils, and species are restored to support ecosystem recovery.
• Explain why monitoring and adaptive management are used in restoration projects.

Learning Objectives

• Understand the basic principles of hydraulic systems and Pascal's law.
• Learn how force is transmitted and amplified using pistons and interconnected chambers.
• Identify real-world applications like hydraulic jacks and brake systems.+ Show more

Learning Objectives

• Understand Newton's third law and how forces act in pairs during interactions.
• Identify examples of action-reaction force pairs in real-world situations.
• Explain why objects respond differently despite experiencing equal and opposite forces.+ Show more

Learning Objectives

• Explain how erosion, transport, and deposition change Earth’s surface through flowing water.
• Describe how runoff and groundwater influence where valleys, deltas, and springs form.
• Connect tectonic uplift and drainage patterns to changes in sediment accumulation over time.

Learning Objectives

• Describe the different states of matter: solid, liquid, gas, and plasma.
• Explain the kinetic molecular theory as it relates to phase changes.
• Identify energy changes associated with phase transitions such as melting, boiling, condensation, and sublimation.+ Show more

Learning Objectives

• Explain how friction is a contact force that opposes relative motion between surfaces
• Describe how surface texture and normal force affect the frictional force and motion of objects
• Use real-world examples (brakes, sleds, tires) to predict how friction changes motion and energy transfer

Learning Objectives

• Understand the concept of work as force applied over a distance.
• Identify different forces and how they do work.
• Relate work to changes in kinetic and potential energy.+ Show more

Learning Objectives

• Describe the process of muscle contraction involving actin and myosin filaments.
• Explain the role of ATP and calcium signaling in muscle contraction.
• Identify how sarcomere organization influences contraction strength and speed.+ Show more

Learning Objectives

• Understand the concept of measurement uncertainty and its sources.
• Identify techniques for minimizing and evaluating measurement errors.
• Learn how to propagate error when combining measurements in calculations.+ Show more

Learning Objectives

• Identify abiotic and biotic factors affecting population size and distribution
• Understand examples of population dynamics in Alberta wildlife
• Explain how birth, death, immigration, and emigration influence populations+ Show more

Learning Objectives

• Explain energy conservation using the idea of a system and its surroundings.
• Identify how energy transfers between forms (mechanical, thermal, and potential) in real-world scenarios.
• Use energy-form tracking to make predictions about changes in motion and temperature.

Learning Objectives

• Describe the phases of interphase and explain why DNA replication is necessary.
• Sequence and explain the stages of mitosis and cytokinesis.
• Explain how checkpoints help maintain DNA fidelity and prevent genomic instability.+ Show more

Learning Objectives

• Explain the processes involved in the rock cycle
• Identify different types of rocks and how they form
• Describe how Earth's materials are recycled through geological processes

Learning Objectives

• Explain how forces act as pushes or pulls that can change an object’s motion
• Use the ideas of balanced and unbalanced forces to predict changes in velocity
• Identify how the direction and size of forces affect speed and direction

Learning Objectives

• Understand the basic processes of evaporation and condensation
• Identify the steps of the water cycle
• Describe how water moves through the environment+ Show more

Learning Objectives

• Understand the relationship between depth and pressure in fluids
• Explain how hydrostatic pressure depends on fluid density and vertical position
• Describe the concepts of communicating vessels and the hydrostatic paradox+ Show more

Learning Objectives

• Explain how specific organelles help cells carry out essential functions
• Describe how differences in organelle structure and abundance match the needs of different cell types
• Use evidence from a passage to answer questions about organelle roles and relationships

Learning Objectives

• Differentiate point sources from nonpoint sources of water contamination using examples.
• Explain how nutrient enrichment can lead to eutrophication and oxygen depletion in aquatic systems.
• Describe how sediment loading and chemical pollutants move through land-to-water pathways.

Learning Objectives

• Explain how decomposers break down dead matter and return nutrients to the environment.
• Describe the role of fungi and bacteria in nutrient cycling and ecosystem productivity.
• Connect decomposition to how energy moves through ecosystems over time.

Learning Objectives

• Understand the purpose and importance of physical and computational models in scientific investigations.
• Learn how to construct simple physical models to analyze real-world phenomena.
• Recognize the limitations of models and sources of measurement uncertainty.+ Show more

Learning Objectives

• Understand how observable traits are inherited through genetic instructions.
• Identify different forms of genes and their influence on physical traits.
• Explain patterns of dominant and recessive traits and their inheritance in families.+ Show more

Learning Objectives

• Interpret the slope and area of graphs to explain physical motion and energy ideas
• Connect data tables and equations to the correct graphical representation
• Evaluate limits and domain choices to avoid incorrect conclusions from graphs

Learning Objectives

• Understand the concept of systems and their components
• Identify interactions within physical and ecological systems
• Explain how models represent real-world phenomena+ Show more

Learning Objectives

• Explain how meiosis produces genetic variation through random assortment and recombination
• Describe how allele combinations in gametes affect trait differences in offspring
• Connect genetic variation from meiosis to natural selection and evolution over time

Learning Objectives

• Identify and classify various renewable and nonrenewable resources of Earth.
• Understand the environmental impacts of resource extraction.
• Explain methods used for resource assessment such as mapping and inventories.+ Show more

Learning Objectives

• Explain how atmospheric pressure affects boiling point and sealed systems
• Describe how barometers measure atmospheric pressure
• Use pressure gradients and kPa units to relate pressure differences to weather and wind+ Show more

Learning Objectives

• Identify and compare physical properties of matter such as density, solubility, melting and boiling points.
• Explain how physical characteristics inform classification and separation techniques.
• Relate measurable quantities like mass, volume, and temperature to observed physical behaviors.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how scientific models represent systems that are too small, too large, or too complex to observe directly.
• Identify different types of scientific models (diagrams, replicas, simulations, mathematical relationships) and match them to real examples.
• Describe how evidence is used to test models and how models are revised when new data disagree.

Learning Objectives

• Understand what cell specialization is and why it is important.
• Identify different types of specialized cells and their functions.
• Learn how structural modifications support cell roles and tasks.

Learning Objectives

• Understand the process of photosynthesis and its role in primary production.
• Identify differences between various types of producers such as grasses, shrubs, boreal trees, and algae.
• Recognize factors that influence primary productivity like soil nutrients and light availability.+ Show more

Learning Objectives

• Identify the main components of the circulatory system
• Describe how blood circulates through the body
• Explain the function of the heart and blood vessels+ Show more