Grade 7 Science Worksheets

Learning Objectives

• Understand different forms of energy and how they transform from one type to another.
• Identify real-world examples of energy transformations in Alberta's resource systems.
• Explain the principle of energy conservation during transformations.+ Show more

Learning Objectives

• Explain how diagrams, scale models, and quantitative representations help predict the behavior of a system.
• Interpret model outputs and identify assumptions, limitations, and scaling effects that affect accuracy.
• Distinguish between different model types (e.g., free-body diagrams, circuit schematics, and block diagrams) and what each is used for.

Learning Objectives

• Understand how energy flows and transforms within mechanical and industrial systems.
• Interpret energy flow diagrams and Sankey diagrams to quantify inputs, useful outputs, and waste heat.
• Explain the conservation of energy principles in various energy systems such as oil sands extraction, heating plants, and hydroelectric infrastructure.+ Show more

Learning Objectives

• Understand the difference between mixtures and pure substances.
• Identify various types of mixtures based on observable traits.
• Learn about physical properties used to separate mixtures.+ Show more

Learning Objectives

• Identify the differences between homogeneous and heterogeneous mixtures.
• Explain how solubility, saturation, and concentration affect solutions.
• Describe methods used to separate mixtures and their practical applications.+ Show more

Learning Objectives

• Understand the ecological consequences of invasive species introductions.
• Recognize pathways and factors facilitating the establishment of invasive species.
• Evaluate the long-term ecological and economic effects of non-native species.+ Show more

Learning Objectives

• Understand methods for mapping load paths in complex structures.
• Identify primary and secondary load routes transferring gravity and lateral loads.
• Analyze how openings, corners, and geometry influence load redistribution.+ Show more

Learning Objectives

• Explain how free-body diagrams represent all forces acting on an object
• Determine the net force magnitude and direction by combining perpendicular force components
• Decompose forces on inclined surfaces into parallel and perpendicular components

Learning Objectives

• Recognize gravity as a long-range, attractive force that acts between objects with mass.
• Describe how gravity depends on mass and distance.
• Identify examples of gravitational interactions in daily life and planetary motion.

Learning Objectives

• Understand the principle of conservation of mass in chemical reactions.
• Identify how atoms are conserved during reactions at the particle level.
• Recognize the significance of closed systems in mass measurement before and after reactions.+ Show more

Learning Objectives

• Explain the basic principles of the particle model of matter and how particles behave in different states
• Describe how particle spacing, motion, and forces account for observable properties like density, pressure, and compressibility
• Relate micro-scale particle interactions to macro-scale measurements such as diffusion, thermal expansion, and response to applied forces+ Show more

Learning Objectives

• Identify and explain types of structural similarities in different species that provide evidence for evolution.
• Differentiate between homologous and analogous structures through morphological comparison.
• Analyze fossil evidence and relate it to evolutionary relationships among species.+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify key stratigraphic markers like fossils, unconformities, and intrusions used in correlating rock layers.
• Explain how field observations and stratigraphic data are used to reconstruct Earth's geological history.+ Show more

Learning Objectives

• Explain how symbolic chemical equations, graphs, and tables can represent matter interactions without assuming microscopic causes
• Interpret quantitative relationships in graphs (e.g., mass or temperature vs. time) and connect them to other representations
• Use balanced equations to infer stoichiometric ratios and communicate what changes occur during a reaction

Learning Objectives

• Explain how different thermometers measure temperature and identify their typical ranges and accuracy limits.
• Use Celsius scale conventions, including fixed points, to interpret temperature readings correctly.
• Describe how calibration, thermal contact, and environmental factors affect measurement uncertainty.

Learning Objectives

• Understand how energy changes occur during chemical reactions, including exothermic and endothermic processes.
• Identify signs of energy transfer in physical and chemical changes.
• Describe how bond breaking and formation involve energy input and release.+ Show more

Learning Objectives

• Understand how physical and chemical properties influence the suitability of materials for various applications.
• Identify key properties such as corrosion resistance, hardness, melting point, and solubility.
• Relate material properties to environmental and structural considerations.+ Show more

Learning Objectives

• Explain how models use abstraction to represent complex systems in manageable ways.
• Identify assumptions, parameters, and units when interpreting or building a numerical model.
• Describe how sensitivity testing and validation help determine whether a model’s predictions are useful.

Learning Objectives

• Identify standard units and explain why instrument choice affects measurement quality.
• Read measurements accurately using correct scale divisions and significant figures.
• Distinguish random error from systematic error and describe uncertainty in readings.+ Show more

Learning Objectives

• Understand how energy transfers through trophic levels in ecosystems.
• Identify roles of producers, consumers, and decomposers in energy pyramids.
• Explain photosynthesis and cellular respiration as energy mechanisms.+ Show more

Learning Objectives

• Explain how geologic evidence such as fossils, rock types, and seafloor features support the theory of plate tectonics.
• Identify key features of Earth's crust, including mid-ocean ridges, trenches, and mountain ranges, and connect them to plate movements.
• Evaluate how seismic activity, volcanic eruptions, and magnetic striping provide evidence for the relative motion of tectonic plates.+ Show more

Learning Objectives

• Identify major freshwater water-supply and treatment options and describe their key tradeoffs.
• Explain how design constraints (water quality, infrastructure limits, and ecosystem impacts) affect water-system decisions.
• Use cause-and-effect reasoning to predict risks from scarcity, pollution, or altered flow patterns.+ Show more

Learning Objectives

• Understand the purpose and practices of conceptual and computational modeling in science.
• Identify key steps in building, testing, and validating models against real-world observations.
• Recognize applications of simple models in phenomena such as population dynamics, fluid flow, and motion.+ Show more

Learning Objectives

• Classify mixtures as solutions, colloids, or suspensions based on particle size and uniformity.
• Describe examples of each mixture type such as salt water, milk, and muddy water.
• Explain the concepts of homogeneity and heterogeneity in mixtures.+ Show more

Learning Objectives

• Identify the four main types of tissues and their functions.
• Describe how tissue organization contributes to organ function.
• Differentiate between epithelial, connective, muscle, and nervous tissues.+ Show more

Learning Objectives

• Explain how variation, heritability, and selective pressures can cause adaptive traits to become more common in a population.
• Use examples (pesticide resistance and camouflage) to describe differential survival and reproduction across generations.
• Predict how environmental change can shift which traits are favored and how that affects populations and ecosystems.

Learning Objectives

• Understand how action-reaction forces operate in recoil and thrust scenarios.
• Describe how different masses affect acceleration during interactions.
• Explain the principle of conservation of momentum in recoil and thrust systems.+ Show more

Learning Objectives

• Explain how food molecules are broken down and rearranged inside the body to support growth and repair
• Describe how chemical energy in food becomes usable energy for life processes
• Identify the roles of carbohydrates, proteins, lipids, and vitamins/minerals as food components

Learning Objectives

• Calculate average speed using distance and time with correct units
• Convert between meters per second (m/s) and kilometers per hour (km/h)
• Differentiate average speed from instantaneous speed using real-world examples+ Show more

Learning Objectives

• Understand the significance of fossil patterns in revealing evolutionary history.
• Identify key concepts such as stratigraphy, index fossils, transitional forms, and macroevolutionary trends.
• Analyze fossil evidence to infer common ancestry and extinction events.+ Show more

Learning Objectives

• Understand the processes involved in physical, chemical, and biological weathering of rocks.
• Identify factors that influence the rate and effects of weathering on landforms.
• Describe how weathering contributes to soil formation and landscape development.+ Show more

Learning Objectives

• Apply critical thinking skills to evaluate explanations, models, and evidence quality.
• Identify logical fallacies, differentiate correlation and causation, and assess limitations of data.
• Evaluate competing explanations and interpret conflicting data sources for reliability.+ Show more

Learning Objectives

• Understand the importance of measurement precision and uncertainty in scientific observations.
• Apply proper calibration techniques for balances and graduated cylinders.
• Use repetition of measurements to assess variability and estimate measurement error.+ Show more

Learning Objectives

• Understand the key elements of designing a fair experiment.
• Identify and define variables in experimental setups.
• Learn the importance of reproducibility, sample size, and safety considerations.+ Show more

Learning Objectives

• Interpret variability and measures of central tendency to assess data consistency
• Use graphical cues such as box plots and histograms to evaluate reliability and significance
• Compare and calculate mean, median, and range across data sets+ Show more

Learning Objectives

• Identify and describe the purpose of variables in controlled experiments.
• Understand methods for managing variables, including control groups, randomization, and replication.
• Explain how systematic variable management reduces confounding influences.+ Show more

Learning Objectives

• Understand relative sizes and distances within the solar system and beyond.
• Express astronomical measurements using units such as astronomical units, light-years, and planetary diameters.
• Analyze orders of magnitude differences and their impact on observations and scale perception.+ Show more

Learning Objectives

• Describe how homologous and analogous structures provide evidence for evolution.
• Identify different morphological features used to compare species, such as limb arrangements and skull morphology.
• Explain the significance of vestigial organs in understanding evolutionary relationships.+ Show more

Learning Objectives

• Identify key organelles in a cell and describe their functions.
• Understand how cellular structures contribute to organismal roles and survival.
• Compare organelle specialization in producers versus consumers.+ Show more

Learning Objectives

• Describe energy flow and matter cycling within ecosystems using food chains, food webs, and trophic pyramids.
• Explain the roles of decomposers in nutrient recycling and how energy transfer efficiency affects ecosystems.
• Analyze how alterations in inputs or energy pathways can change community composition and ecosystem processes.+ Show more

Learning Objectives

• Understand the fundamentals of engineering design processes.
• Learn to define clear problems and set criteria and constraints.
• Explore how trade-offs influence materials and environmental considerations.+ Show more

Learning Objectives

• Understand the different types of adaptations organisms have for survival.
• Identify environmental factors that influence adaptations.
• Explain how structural, physiological, and behavioral traits help organisms thrive in specific habitats.+ Show more

Learning Objectives

• Explain the principles of ecological restoration, including reference conditions and long-term monitoring.
• Differentiate between active and passive restoration approaches.
• Identify factors influencing species selection and habitat connectivity in restoration projects.+ Show more

Learning Objectives

• Explain how reference conditions and restoration goals guide ecological restoration decisions.
• Compare active versus passive restoration approaches and identify appropriate success indicators.
• Describe how species selection, genetic considerations, and habitat connectivity support long-term resilience.+ Show more

Learning Objectives

• Summarize how human activities can alter ecosystems, including habitat loss, pollution, resource extraction, and invasive species.
• Explain how these impacts can change species composition, disrupt ecosystem functions, and reduce long-term resilience.
• Describe stewardship principles such as mitigation, habitat protection, restoration priorities, and evidence-based monitoring.

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter and how abiotic factors affect decomposition rates.
• Describe carbon and nitrogen transformations that occur during decomposition and nutrient cycling.
• Connect decomposition rate to soil fertility and ecosystem productivity across wetlands, forests, and grasslands.

Learning Objectives

• Identify biotic and abiotic components of an ecosystem and explain how they affect organisms.
• Classify organisms as producers, consumers, or decomposers and describe their roles.
• Explain energy flow from sunlight to organic matter and how matter cycles through ecosystems.

Learning Objectives

• Explain how ecological succession changes a community after disturbance
• Distinguish primary and secondary succession and identify common stages
• Describe drivers of succession, including soil development, seed dispersal, competition, and facilitation