Grade 7 Science Worksheets

Learning Objectives

• Explain what atoms and molecules are as the basic particles of matter.
• Describe how particles behave during chemical changes.
• Understand the principle of conservation of mass during reactions.

Learning Objectives

• Explain different types of interactions between populations such as competition, predation, and mutualism.
• Describe how resource partitioning, habitat differences, and temporal separation allow species to coexist.
• Analyze the effects of population interactions on community diversity and stability.

Learning Objectives

• Understand how fire as a disturbance impacts forest habitats
• Identify both positive and negative effects of forest fires
• Learn about the role of disturbance regimes in ecological succession+ Show more

Learning Objectives

• Identify physical properties such as density, hardness, and melting point.
• Explain chemical properties like corrosion resistance and reactivity.
• Match material properties to their practical applications.+ Show more

Learning Objectives

• Understand the defining features of populations and their components.
• Identify factors influencing population size and distribution.
• Explain demographic metrics like growth rates and density.+ Show more

Learning Objectives

• Explain how test data are used to identify mismatches with success criteria.
• Describe how targeted design changes can improve performance while respecting constraints (safety, materials, and cost).
• Write clear cause-and-effect explanations connecting evidence to revised outcomes.

Learning Objectives

• Explain how technologies create trade-offs between benefits and costs for people and the environment
• Evaluate ethical issues in technology such as fairness, privacy, and product responsibility across the life cycle
• Connect engineering and design choices to real-world impacts on ecosystems and communities

Learning Objectives

• Identify independent, dependent, and controlled variables in a science investigation.
• Describe how controlled variables help make evidence reliable and fair.
• Select appropriate measurement evidence and units that match a scientific question.

Learning Objectives

• Explain the difference between accuracy and uncertainty when making measurements.
• Describe how tool resolution and repeated trials affect the range (spread) of data.
• Use tables and graphs to represent uncertainty and decide whether two results meaningfully differ.

Learning Objectives

• Explain how control methods reduce the influence of unrelated factors in an investigation.
• Identify control and comparison conditions and describe how they should be kept consistent.
• Use proper timing, calibration, and standardized procedures to support credible conclusions.+ Show more

Learning Objectives

• Explain how simple mechanisms transfer motion and force within engineered systems.
• Describe input-output relationships using the terms input energy, mechanism, and output performance.
• Predict how changing a mechanism (such as a gear ratio or pulley arrangement) affects speed and torque or force.+ Show more

Learning Objectives

• Explain how nutrients cycle through air, living things, water, and soil in an ecosystem
• Describe the main roles of photosynthesis, respiration, decomposition, and bacteria in nutrient transformations
• Use nutrient-cycle ideas to predict how limiting nutrients can affect ecosystem productivity

Learning Objectives

• Understand how to translate numerical distance–time data into graphical representations.
• Interpret slopes, areas under curves, and rates on motion graphs.
• Use examples such as downhill runs to analyze average and instantaneous speeds.+ Show more

Learning Objectives

• Identify major abiotic factors (temperature, moisture, light, soil nutrients, pH) and describe how each affects organisms.
• Explain how daily and seasonal changes in abiotic conditions can create stress or opportunities for populations.
• Use carrying capacity and population resilience to predict how organisms may respond to extreme abiotic events.

Learning Objectives

• Explain how forces act as causes of changes in an object’s motion using the ideas of velocity and acceleration
• Differentiate balanced forces from unbalanced forces and predict the effect on net force and motion
• Describe how friction, air resistance, and gravity oppose or change motion near Earth

Learning Objectives

• Explain why pure substances have uniform composition and characteristic properties such as fixed melting/boiling points.
• Differentiate elements and compounds using physical and chemical evidence.
• Identify how impurities and multiple constituents change observed properties when comparing to pure substances.

Learning Objectives

• Explain how physical properties (particle size, solubility, magnetism, boiling point) can be used to separate mixtures without changing chemical identity
• Match common separation techniques to the physical property differences they exploit
• Interpret separation efficiency by linking observations (what remains vs. what is removed) to the type of material in a mixture

Learning Objectives

• Use mass conservation to build simple mass budgets for closed or near-closed science systems.
• Explain how reaction stoichiometry and waste/environmental accounting apply conservation of mass.
• Analyze measured versus expected masses and suggest plausible reasons for differences.

Learning Objectives

• Explain how the particle model uses discrete particles, spaces, and motion to describe matter
• Connect particle behavior to observable properties and state changes (such as density, diffusion, evaporation, and condensation)
• Differentiate physical rearrangements from chemical transformations using particle interactions

Learning Objectives

• Understand various forms of energy and how they interconvert through energy transformations.
• Explain the principle of energy conservation across different processes.
• Identify real-world examples of energy transformations in Alberta, such as hydroelectric, wind, and natural gas systems.+ Show more

Learning Objectives

• Understand the properties that define pure substances, including fixed melting and boiling points, density, and reactivity.
• Differentiate between elements and compounds through physical and chemical tests.
• Recognize examples of pure substances such as elemental metals and common compounds like calcium carbonate.+ Show more

Learning Objectives

• Identify and describe key signs indicating a physical change.
• Understand examples of physical changes in everyday life.
• Explain how particle behavior relates to macroscopic observations during physical changes.+ Show more

Learning Objectives

• Understand the concept of conservation of mass in closed-system reactions.
• Identify how reactant and product masses relate through balancing equations.
• Recognize examples of mass relationships in chemical processes such as combustion and corrosion.+ Show more

Learning Objectives

• Understand the principle of conservation of mass in physical and chemical changes.
• Recognize that mass remains constant in a closed system during reactions.
• Explain observations of sealed-container reactions that demonstrate mass conservation.+ Show more

Learning Objectives

• Explain what solution concentration means and identify the roles of solute and solvent.
• Use mass percent and grams per litre to describe how concentrated a solution is.
• Predict how concentration can affect boiling point and freezing point.

Learning Objectives

• Define and identify different phase changes such as melting, freezing, vaporization, condensation, sublimation, and deposition.
• Explain how energy transfer causes particles to change states without altering their chemical identity.
• Describe the effects of temperature and pressure on phase changes.+ Show more

Learning Objectives

• Explain how mass conservation applies to closed or near-closed physical and chemical systems.
• Use mass budgeting ideas to reconcile measured and expected masses in real-world scenarios.
• Connect conservation of mass to reaction stoichiometry, waste accounting, and environmental mass balances.

Learning Objectives

• Understand how material properties, transfer modes, and conservation principles are combined in energy systems analysis.
• Analyze energy budgets including conduction, convection, radiation, storage, and losses.
• Interpret system performance data through numerical and graphical representations.+ Show more

Learning Objectives

• Understand how to interpret and draw free-body diagrams.
• Learn to decompose forces into perpendicular components on inclined surfaces.
• Apply vector addition to determine net force magnitude and direction.+ Show more

Learning Objectives

• Understand key design strategies used in building solutions to optimize thermal performance.
• Identify methods such as passive solar gains, thermal barriers, and heat-recovery ventilation.
• Analyze regional building examples and their trade-offs between materials, energy, and comfort.+ Show more

Learning Objectives

• Understand how invasive species spread beyond their native range.
• Identify ecological impacts caused by invasive species on native ecosystems.
• Explain mechanisms of invasion and their effects on food webs and nutrient cycles.+ Show more

Learning Objectives

• Understand the difference between mixtures and pure substances.
• Identify characteristics of heterogeneous and homogeneous mixtures.
• Learn about physical properties that enable separation methods.+ Show more

Learning Objectives

• Explain how energy transfer modes (conduction, convection, and radiation) contribute to an energy budget in real systems.
• Apply conservation of energy to interpret net heat gain, required input energy, and storage effects.
• Use quantitative comparisons and predicted temperature responses to support system-level decisions.+ Show more

Learning Objectives

• Identify different observable indicators that provide evidence for chemical reactions.
• Describe how gas production, heat exchange, colour changes, and precipitate formation relate to reaction pathways.
• Connect reaction observations to underlying particle interactions and mass changes.+ Show more

Learning Objectives

• Understand how material properties influence heat flow and energy efficiency in buildings.
• Identify design choices that reduce unwanted heat transfer in various regional contexts.
• Quantify and explain the significance of R-values, thermal bridges, and lifecycle energy use.+ Show more

Learning Objectives

• Understand the intrinsic thermal properties of common construction materials.
• Compare how porosity, moisture, and layering affect thermal conductivity.
• Identify trade-offs between structural considerations and thermal resistance in building materials.+ Show more

Learning Objectives

• Explain how metamorphic change happens without complete melting
• Differentiate contact metamorphism and regional metamorphism using textures and mineral assemblages
• Use metamorphic index minerals and foliation to infer metamorphic grade and burial history

Learning Objectives

• Identify physical and chemical properties used to evaluate materials for applications.
• Understand how properties like corrosion resistance, hardness, melting point, solubility, and reactivity influence material suitability.
• Match material properties to specific application requirements to minimize unwanted chemical changes.

Learning Objectives

• Explain how physical processes such as melting, boiling, freezing, and dissolving change the form of matter without creating new substances.
• Differentiate density-based separations (settling and layering) from solubility-based separations (dissolving selectively).
• Describe how to identify whether an observed change is a separation or a chemical change by using evidence of new properties.

Learning Objectives

• Identify observable signs of chemical change such as gas formation, color change, temperature change, and precipitate formation.
• Understand that multiple indicators together provide stronger evidence of chemical change than any single sign.
• Recognize the importance of measurements alongside observations to confirm chemical changes.

Learning Objectives

• Understand the concept of chemical properties and how they describe substances.
• Identify different types of chemical reactions based on properties such as flammability and reactivity.
• Observe and infer chemical properties from experimental outcomes such as color change and gas evolution.+ Show more

Learning Objectives

• Understand how to predict chemical reactions using physical and chemical properties.
• Identify properties such as reactivity, solubility, flammability, and acid-base behavior.
• Learn how reactivity patterns help anticipate products and energy changes in reactions.+ Show more

Learning Objectives

• Understand the different types of phase changes and what causes them.
• Identify the effects of temperature and pressure on states of matter.
• Explain the concepts of latent heat and energy transfer during phase transitions.+ Show more

Learning Objectives

• Identify examples of physical changes in everyday life.
• Differentiate between physical and chemical changes based on observable attributes.
• Understand the concepts of reversibility and particle behavior during physical changes.+ Show more

Learning Objectives

• Identify and classify different types of chemical reactions including synthesis, decomposition, and displacement.
• Understand particle-level explanations of mass conservation during chemical transformations.
• Predict products of various reaction types based on reactant information.+ Show more

Learning Objectives

• Understand the criteria used for selecting materials for specific applications.
• Identify various physical and chemical properties relevant to material suitability.
• Evaluate how properties like corrosion resistance, hardness, and solubility impact application performance.+ Show more

Learning Objectives

• Understand how energy is involved in chemical reactions and changes.
• Distinguish between exothermic and endothermic reactions based on energy transfer.
• Explain the link between energy exchange, bond breaking, and bond formation.+ Show more

Learning Objectives

• Understand the concept of mass measurement and its role in chemical reactions.
• Identify the factors affecting the conservation of mass in closed systems.
• Apply principles of accurate measurement to prevent errors involving gases or dissolved species.+ Show more