Grade 8 Science Worksheets

Learning Objectives

• Understand the structure and function of different transport tissues in plants and animals.
• Identify key components and their roles in circulatory and vascular systems.
• Explain how bulk flow and diffusion facilitate nutrient, gas, and waste exchange.+ Show more

Learning Objectives

• Understand how to compute average speed from multiple segments with different speeds and durations.
• Analyze how slower segments influence overall travel speed more than faster segments.
• Apply proportional reasoning to interpret distance-time data for nonuniform motion scenarios.+ Show more

Learning Objectives

• Explain how genes influence observable traits (phenotypes) through dominant and recessive patterns.
• Use evidence from pedigrees and family histories to infer how traits can be inherited.
• Describe how related organisms and mutations can provide additional evidence about genetic traits.

Learning Objectives

• Understand how the digestive system combines mechanical and chemical processes to break down food.
• Identify the role of tissue specialization and cellular structures in digestion.
• Explain how nutrient absorption is facilitated through organ and system integration.+ Show more

Learning Objectives

• Explain how materials, manufacturing, use, and end-of-life stages affect the overall environmental impact of a product
• Compare two design options by evaluating tradeoffs across the full life cycle rather than a single stage
• Identify evidence-based relationships between maintenance needs, energy use, waste, and pollution+ Show more

Learning Objectives

• Define predation and identify its role in ecosystems
• Understand the predator-prey relationship
• Analyze how predation affects population dynamics+ Show more

Learning Objectives

• Identify the main parts of the nervous system
• Describe the functions of neurons, axons, synapses, and myelin
• Understand how neurons transmit signals rapidly+ Show more

Learning Objectives

• Explain the concept of ecological succession and its stages.
• Distinguish between primary and secondary succession.
• Identify factors that influence successional pathways and landscape heterogeneity.+ Show more

Learning Objectives

• Understand how particle models explain chemical reactions and energy changes.
• Identify observable evidence of chemical reactions such as color change, gas formation, and temperature change.
• Connect changes at the particle level to real-world evidence of reactions.+ Show more

Learning Objectives

• Understand how particle motion explains gas pressure and temperature.
• Connect microscopic particle behavior to macroscopic gas properties.
• Interpret how changes in temperature affect particle collisions and pressure.+ Show more

Learning Objectives

• Resolve the weight (gravity) of an object on an incline into perpendicular and parallel components.
• Explain how the parallel component and friction determine whether an object tends to slide down, stay at rest, or move up.
• Predict how slope steepness changes the size of the unbalanced force and the motion tendency.

Learning Objectives

• Identify structures involved in gas exchange in humans and plants
• Describe how the structure of alveoli and stomata facilitates gas exchange
• Explain the importance of surface area and thin surfaces in diffusion+ Show more

Learning Objectives

• Understand how particle motion, pressure, and temperature are interconnected in gases.
• Explain how changes in temperature can affect gas pressure and volume in closed systems.
• Describe real-world examples of gas behaviour, including atmospheric pressure variations and gas handling in agriculture.+ Show more

Learning Objectives

• Describe what a force is and its effect on objects.
• Identify different types of forces such as gravity, air resistance, and contact forces.
• Explain how forces combine as net forces to change motion.+ Show more

Learning Objectives

• Explain how balanced forces lead to zero net force and no change in motion
• Differentiate static equilibrium from dynamic equilibrium using real-life examples
• Determine whether a situation shows balanced or unbalanced forces by considering opposing forces

Learning Objectives

• Explain how to choose appropriate instrument ranges when measuring voltage, current, and resistance.
• Describe correct meter connection conventions for measuring current and voltage in a circuit.
• Predict how meter impedance (internal resistance) can affect measured current and resistance values.+ Show more

Learning Objectives

• Distinguish between short-term weather patterns and long-term climate patterns using data
• Interpret graphs and summary statistics for temperature, precipitation, and storm frequency
• Explain how variability differs from long-term change+ Show more

Learning Objectives

• Explain how tissues interact to form organs with specialized functions.
• Identify different tissue types involved in organ structure.
• Describe how tissue integration leads to organ-level properties.+ Show more

Learning Objectives

• Define engineering design success criteria and describe how they should be measurable.
• Identify common constraints in an engineering design problem and explain why they limit solutions.
• Write success criteria and constraints for a simple design challenge using precise language.

Learning Objectives

• Distinguish between design success criteria and engineering constraints in a design problem.
• Write success criteria as measurable outcomes and constraints as limits on solutions.
• Apply design parameters to evaluate and compare different solution ideas.

Learning Objectives

• Differentiate speed, velocity, and acceleration by identifying whether each is scalar or directional and what change rate it describes.
• Interpret motion from distance-time and velocity-time information, including changes in magnitude and direction.
• Calculate and compare kinematic quantities from tabulated distances and times in realistic contexts.

Learning Objectives

• Understand what homogeneous mixtures are and recognize examples.
• Explain the role of solubility and concentration in solutions.
• Describe how mixtures like saline water and fuel blends impact the environment and industry.+ Show more

Learning Objectives

• Explain how selective permeability controls movement of substances across the cell membrane
• Describe the roles of membrane proteins (channels and pumps) and vesicular transport
• Connect membrane surface area and composition to diffusion rates and cellular signaling

Learning Objectives

• Understand the particle-level changes that occur during chemical reactions.
• Identify observable evidence of chemical reactions such as color change, gas formation, and temperature change.
• Connect particle models to energy changes in reactions.

Learning Objectives

• Understand the key safety features used in electrical system design.
• Identify environmental impacts associated with electrical energy sources.
• Evaluate safety and environmental trade-offs in electrical infrastructure.+ Show more

Learning Objectives

• Understand the concept of energy dissipation and its effects on mechanical energy.
• Identify mechanisms such as friction, air resistance, and inelastic deformation that cause energy loss.
• Learn how efficiency relates to energy transfer and how dissipation impacts system performance.+ Show more

Learning Objectives

• Understand the functions of different cell organelles and their roles.
• Explain how organelle specialization supports cellular and tissue functions.
• Identify variations in organelle abundance in different cell types.+ Show more

Learning Objectives

• Differentiate static electricity from current electricity by describing charge movement and effects.
• Explain how conductors, insulators, and electron transfer relate to electrostatic phenomena.
• Use charge interactions (attract/repel) to predict outcomes in simple scenarios.+ Show more

Learning Objectives

• Define balanced and unbalanced forces
• Identify examples of force systems that are in equilibrium
• Understand how force vectors determine motion or rest+ Show more

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks form under different Earth conditions
• Describe how minerals’ physical properties relate to composition
• Use the rock record to connect tectonic activity with long-term changes on Earth

Learning Objectives

• Understand what defines an invasive species
• Identify the ecological traits that make certain species invasive
• Recognize the impacts invasive species have on native ecosystems+ Show more

Learning Objectives

• Understand how human land use impacts ecosystems and nutrient cycles.
• Identify common human activities that modify habitats and species interactions.
• Analyze the effects of resource extraction, agriculture, and urban expansion on Alberta landscapes.+ Show more

Learning Objectives

• Differentiate mass and weight using particle-based and gravitational ideas.
• Use the relationship between weight, mass, and gravitational acceleration to make predictions.
• Explain why forces can change motion while mass stays an intrinsic property.

Learning Objectives

• Explain how long-term climate patterns are determined from many years of weather data.
• Differentiate natural variability from persistent climate change trends.
• Describe how feedback mechanisms such as ice-albedo and water-vapor can intensify climate impacts.

Learning Objectives

• Explain how electric motors convert electrical energy into mechanical motion using magnetic fields and current-carrying conductors.
• Describe how generators convert mechanical motion into electrical energy using electromagnetic induction.
• Compare motors and generators as reciprocal devices and relate design parameters to efficiency and power output.

Learning Objectives

• Understand the concept of biodiversity and its levels (genetic, species, ecosystem).
• Learn how biodiversity is measured using richness, evenness, and diversity indices.
• Recognize the importance of biodiversity for ecosystem stability and resilience.+ Show more

Learning Objectives

• Identify the perpendicular and parallel components of gravity relative to a slope
• Explain how the parallel component relates to motion down the incline
• Describe how friction and gravity components affect whether an object tends to move

Learning Objectives

• Identify and describe the different types of energy involved in a pendulum's motion.
• Explain how energy converts from potential to kinetic and vice versa during a swing.
• Understand factors that influence the energy transfer and period of a pendulum.+ Show more

Learning Objectives

• Identify and describe different types of species interactions such as predation, competition, parasitism, mutualism, and commensalism.
• Explain how species interactions influence population dynamics and community structure.
• Analyze examples of mutualism and predation in ecosystems.+ Show more

Learning Objectives

• Identify the structure and function of alveoli
• Understand how alveoli contribute to gas exchange
• Recognize the importance of surface area and thin surfaces in respiration

Learning Objectives

• Use balanced-equation ratios to predict relative masses of reactants and products.
• Explain how mass conservation helps interpret changes in a closed system.
• Compare expected theoretical amounts to observed residue in controlled reactions.+ Show more

Learning Objectives

• Identify key features of the solar system and the evidence supporting their characteristics.
• Explain how planetary compositions, densities, and surface features relate to planetary history.
• Analyze orbital patterns and their implications for planetary formation and evolution.+ Show more

Learning Objectives

• Understand the concept of cell specialization and its importance in biology.
• Identify different types of specialized cells and their unique structures.
• Explain how structural modifications support specific cellular functions.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how life-cycle thinking compares impacts from materials and manufacturing to maintenance and end-of-life disposal.
• Identify trade-offs between different stages of a product’s life cycle (before use, during use, after use).
• Use system-level evaluation to make fair comparisons among design options under real constraints.

Learning Objectives

• Understand how cells develop unique structures and functions through specialization.
• Identify examples of specialized cells and their unique features.
• Explain how structural modifications support specific cellular functions.+ Show more

Learning Objectives

• Explain how abiotic factors (light, temperature, water, soil, and nutrients) affect where organisms live and how well they function.
• Describe how seasonal and microhabitat changes create different niches within the same ecosystem.
• Analyze how changes in abiotic conditions can shift community composition and ecosystem function over time.

Learning Objectives

• Explain how energy moves through trophic levels in a one-way flow from the Sun to producers and then to consumers
• Describe why energy decreases at each trophic level and how heat loss limits ecosystem productivity
• Compare how food chains and food webs show single vs. multiple pathways for energy flow