Grade 7 Science Worksheets

Learning Objectives

• Identify various sources of pollution relevant to Alberta ecosystems.
• Understand how pollutants enter and impact terrestrial and aquatic environments.
• Recognize pathways of exposure and associated ecological consequences.

Learning Objectives

• Understand the concept of biodiversity and its different components.
• Learn about indices used to measure biodiversity, such as richness, evenness, and habitat heterogeneity.
• Interpret what various biodiversity metrics reveal about ecosystem resilience and health.+ Show more

Learning Objectives

• Identify biotic and abiotic components of an ecosystem and describe their roles
• Explain trophic categories (producers, consumers, decomposers) and how energy flows from sunlight
• Use food chains from pond and forest settings to describe connections, matter cycling, and ecosystem balance

Learning Objectives

• Understand the methods used to compare sizes and distances in the solar system and beyond.
• Recognize the significance of astronomical units, light-years, and logarithmic representations.
• Analyze how scale affects observations, motion, and observational limits.+ Show more

Learning Objectives

• Define components of ecosystems, including biotic and abiotic elements.
• Describe the roles of producers, consumers, and decomposers in energy flow.
• Identify examples of simple food chains in pond and forest habitats.+ Show more

Learning Objectives

• Explain how design criteria and constraints guide the success of a science/engineering solution.
• Identify examples of measurable criteria and relevant constraints in everyday design problems.
• Use criteria and constraints to evaluate whether a proposed solution is acceptable.

Learning Objectives

• Use the quantitative heat equation Q = mcΔT to calculate thermal energy changes for common materials
• Identify and apply appropriate units for heat (joules) and power (watts)
• Explain how heat-transfer rate depends on temperature gradient, surface area, and time

Learning Objectives

• Explain how species richness and evenness help describe biodiversity in an ecosystem.
• Interpret common biodiversity indices (including the idea of how diversity changes across habitats).
• Connect habitat heterogeneity and niche diversity to species turnover and community differences.+ Show more

Learning Objectives

• Interpret experimental data using patterns, variability, and measurement quality
• Explain how reliability increases when repeated measurements are similar
• Identify common sources of error and how they affect confidence in conclusions+ Show more

Learning Objectives

• Explain how the conservation of mass applies to closed-system chemical and physical changes
• Use mass accounting to relate reactant masses to product masses in sealed systems
• Distinguish theoretical yield from measured yield using evidence about incomplete reactions or measurement differences+ Show more

Learning Objectives

• Understand how DNA molecules are organized into chromosomes and how they encode genes.
• Describe the process of chromosome segregation during gamete formation and fusion.
• Explain how genetic variation influences observable traits through differences in DNA sequences.+ Show more

Learning Objectives

• Explain how circulatory, respiratory, digestive, and nervous systems work together to support homeostasis.
• Describe how oxygen and nutrients move from their sources to body cells using interdependent system processes.
• Use evidence from human mammalian systems and plant vascular transport to compare how organisms distribute needed materials.

Learning Objectives

• Understand the concept of saturation and how it relates to solubility limits.
• Identify conditions that lead to supersaturation and phase change.
• Recognize regional examples of saturation phenomena, such as evaporation and crystallization.+ Show more

Learning Objectives

• Understand the mechanisms of heat transfer: conduction, convection, radiation, sound, and electric current.
• Identify examples and measurable evidence of different heat transfer modes.
• Explain the factors affecting rates of heat transfer and temperature changes.+ Show more

Learning Objectives

• Identify how internal systems (transport, digestion, coordination) help organisms survive and function.
• Describe how external structures (shells, spines, coloration, beak forms) support protection, feeding, and movement.
• Explain functional relationships between traits and increased chances of obtaining resources, maintaining balance, and reproducing.

Learning Objectives

• Use the relationship Q = mcΔT to estimate the thermal energy needed to change a substance’s temperature.
• Explain how specific heat capacity links material identity to temperature change for a given mass and added heat.
• Describe how heat-transfer rate depends on area, temperature gradient, and time.

Learning Objectives

• Explain how the circulatory, respiratory, and digestive systems work together to support life functions
• Describe how specialized structures (capillaries and alveoli) increase the efficiency of gas and nutrient exchange
• Use scientific vocabulary to connect organ system roles to cellular needs for oxygen, nutrients, and removal of wastes

Learning Objectives

• Learn what mass is and how it differs from weight.
• Identify common tools used to measure mass.
• Understand the importance of accuracy in mass measurement.+ Show more

Learning Objectives

• Understand the concept of gravity as a long-range force that acts without contact.
• Identify examples of gravitational, electric, and magnetic interactions in everyday life.
• Describe how mass and distance influence gravitational attraction.+ Show more

Learning Objectives

• Explain what acceleration means in terms of changes in velocity over time and the direction (positive or negative).
• Identify whether acceleration is constant or changing by analyzing patterns of velocity over equal time intervals.
• Connect acceleration to net force and mass to describe inertia and predict motion outcomes.

Learning Objectives

• Explain how tradeoffs occur when improving one design criterion can worsen another due to constraints
• Map competing design options to criteria and constraints to decide which tradeoffs are acceptable
• Use intended function and acceptable limits (such as safety and feasibility) to justify design choices

Learning Objectives

• Distinguish between physical and chemical properties of materials.
• Identify measurable descriptors such as density, melting point, and solubility.
• Analyze data to classify materials and predict responses to temperature and chemical contact.+ Show more

Learning Objectives

• Understand how agents like water, glaciers, wind, and gravity detach and move Sediment.
• Identify the distinctive sedimentary signatures produced by different agents of erosion.
• Describe how transport distance and energy influence grain size and sorting of sediments.+ Show more

Learning Objectives

• Explain gravitational, electric, and magnetic interactions as long-range forces that act without contact.
• Relate gravitational attraction to mass and distance in qualitative terms.
• Use evidence-based reasoning to describe how force direction depends on charges or magnetic poles.

Learning Objectives

• Understand how sensors collect data
• Learn about data formats like CSV and timestamps
• Identify the advantages and limitations of automated data logging+ Show more

Learning Objectives

• Understand how gravity influences orbital motion within the solar system and across galaxies.
• Describe elliptical orbits and how they are affected by mass and distance.
• Apply mathematical relationships to explain orbital velocity and centripetal effects in planetary systems.+ Show more

Learning Objectives

• Explain how uneven solar heating and surface conditions influence atmospheric and ocean circulation
• Use temperature gradients, sea-surface temperature patterns, wind vectors, and precipitation records to interpret climate phenomena
• Describe how topography and ocean currents can cause regional climate differences+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures
• Identify examples of solutions, colloids, and suspensions
• Understand solubility, saturation, and concentration concepts+ Show more

Learning Objectives

• Explain how gravitational attraction creates and shapes orbital motion in the solar system and beyond
• Use centripetal-force ideas to describe why orbiting objects move in curved paths without falling straight down
• Relate orbital speed and orbital period to mass and distance using qualitative mathematical relationships+ Show more

Learning Objectives

• Explain how gravity affects the motion of objects near Earth.
• Distinguish mass from weight using the role of gravitational force.
• Describe how falling objects gain speed over time due to a net downward force.

Learning Objectives

• Understand management strategies for maintaining biodiversity and ecosystem health.
• Compare trade-offs and consequences of different biodiversity management approaches.
• Evaluate case examples such as wetland restoration and corridor creation.+ Show more

Learning Objectives

• Understand the concept of gravitational attraction.
• Explain how gravity influences the motion of planets and moons.
• Identify observational evidence supporting gravitational theories.

Learning Objectives

• Understand the fundamentals of engineering design, including problem definition and criteria setting.
• Learn how to create specification documents, trade-off matrices, and evaluate feasibility based on materials, cost, and environmental factors.
• Recognize the importance of iterative refinement to improve design solutions aligned with objectives and available resources.+ Show more

Learning Objectives

• Explain the principles of energy conversion and transfer in different devices.
• Identify examples of devices that transform energy from one form to another.
• Understand the concept of energy conservation and the effects of thermal losses.+ Show more

Learning Objectives

• Define carrying capacity and explain its significance in ecosystems.
• Identify limiting factors that influence population sizes.
• Understand how populations stabilize at carrying capacity through resource regulation.+ Show more

Learning Objectives

• Explain how reproductive isolation and geographic separation can lead to speciation.
• Describe how founder effects, polyploidy, and adaptive radiation increase biodiversity.
• Use biogeographic and time-based patterns to interpret how new species form.

Learning Objectives

• Describe the concept of stoichiometry and its role in chemical reactions.
• Use balanced chemical equations to determine mole ratios of reactants and products.
• Apply ratio reasoning to predict quantities of substances involved in reactions.+ Show more

Learning Objectives

• Understand the principles of momentum conservation during collisions.
• Differentiate between elastic and inelastic collisions.
• Calculate post-collision velocities using mass, velocity, and momentum concepts.+ Show more

Learning Objectives

• Define meiosis and understand its role in producing reproductive cells.
• Explain how genetic variation arises during meiosis.
• Recognize why siblings are genetically different despite having the same parents.+ Show more

Learning Objectives

• Explain how thermal conductivity, specific heat capacity, density, and phase change affect heat transfer in materials.
• Compare common Alberta construction materials using their thermal and moisture-related properties.
• Describe how porosity and moisture content change effective thermal conductivity in building assemblies.

Learning Objectives

• Understand the differences between physical changes and chemical changes in matter
• Identify examples of physical changes in everyday life
• Recognize indicators of chemical changes such as color change, gas production, precipitates, and temperature change

Learning Objectives

• Identify and describe the three primary modes of thermal energy transfer: conduction, convection, and radiation.
• Analyze everyday examples of each mode and understand the underlying molecular mechanisms.
• Compare the media and rates of heat transfer among conduction, convection, and radiation.+ Show more

Learning Objectives

• Define key material properties such as density, tensile and compressive strength, stiffness, ductility, toughness, and thermal expansion.
• Explain how these properties influence structural performance and failure modes.
• Contrast common construction materials—wood, steel, and reinforced concrete—in terms of strength-to-weight ratio, deformation, and failure.+ Show more

Learning Objectives

• Understand the principle of action-reaction forces and how they occur in interactions.
• Identify examples of action-reaction pairs in everyday situations.
• Explain how force pairs are equal in magnitude and opposite in direction.+ Show more

Learning Objectives

• Describe how abstraction represents essential features of real-world systems
• Identify parameters, units, and scaling choices in numerical models
• Explain how assumptions affect the usefulness of scientific models+ Show more

Learning Objectives

• Explain conservation of matter in a closed system using the atomic model
• Distinguish between physical changes and chemical changes in terms of atoms and mass
• Use mass measurements of reactants and products to support the law of conservation of matter

Learning Objectives

• Understand how forces act as causes of motion changes.
• Differentiate between balanced and unbalanced forces.
• Explain how friction, air resistance, and gravity influence motion.+ Show more

Learning Objectives

• Define and distinguish among mutualism, commensalism, and parasitism.
• Identify regional examples of different symbiosis types in Alberta ecosystems.
• Explain ecological consequences of inter-species relationships on population dynamics and resource distribution.+ Show more