Grade 7 Science Worksheets

Learning Objectives

• Explain how an inclined plane changes the relationship between input force and distance traveled.
• Describe the parallel and perpendicular force components relative to a slope.
• Calculate and interpret mechanical advantage for inclined-plane situations.+ Show more

Learning Objectives

• Identify which steps in bitumen extraction are physical separations versus chemical treatments.
• Explain how density, particle size, temperature, and additives affect mixtures such as oil sands slurries and emulsions.
• Use classification ideas to describe how processing choices change the products made from bitumen-containing mixtures.

Learning Objectives

• Explain how design criteria and constraints work together in a science/engineering design problem.
• Identify measurable or observable criteria that can be used to judge whether a solution improves performance.
• Describe how trade-offs can happen when meeting one requirement affects another.+ Show more

Learning Objectives

• Identify abiotic drivers (temperature gradients, light availability, soil composition, moisture regimes, and pH) and explain how they influence where organisms can survive.
• Describe how physical gradients create environmental templates that shape community structure.
• Explain how microhabitats within ponds, forests, and meadows differ because of abiotic variability and resources.+ Show more

Learning Objectives

• Identify common hazards in laboratory and field contexts and locate relevant hazard information in Safety Data Sheets (SDS).
• Explain how likelihood and severity affect risk and how controls reduce risk using the hierarchy of controls.
• Describe appropriate emergency planning, signage, incident reporting, and ethical responsibilities for personal and community safety.

Learning Objectives

• Explain how solubility depends on the nature of solute and solvent, temperature, pressure (for gases), and surface area
• Describe how agitation and particle size affect the rate and extent of dissolution
• Use examples from everyday life to predict how changes in conditions affect dissolved materials

Learning Objectives

• Identify common simple mechanisms (gears, pulleys, levers, and linkages) and describe how they transfer motion or force.
• Explain how an engineered system connects input energy to output performance using cause-and-effect reasoning.
• Use evidence from a mechanism (like gear ratio or lever position) to predict changes in speed and torque.

Learning Objectives

• Explain how heritable variation and environmental pressures can change trait frequencies over generations.
• Describe how differential survival and reproduction lead to adaptation.
• Use examples (e.g., island finches, antibiotic resistance) to identify selective pressures and advantageous traits.

Learning Objectives

• Define adaptations as structural, physiological, and behavioural traits that improve survival and reproduction in specific environments
• Explain how selective pressures influence which traits become more common in a population
• Describe how trade-offs in resource allocation can affect the success of an adaptation+ Show more

Learning Objectives

• Explain how abiotic factors (sunlight, water, temperature, soil, topography) affect living organisms in an ecosystem.
• Describe cause-and-effect relationships between abiotic conditions and biotic community patterns.
• Identify how plants, animals, and microbes respond to non-living environmental gradients in Alberta landscapes.

Learning Objectives

• Explain how energy flows through organisms in a food web from producers to consumers and decomposers.
• Identify how removing or adding a species can change trophic connections and affect ecosystem stability.
• Use vocabulary from food webs (producer, consumer, decomposer, trophic level) to describe feeding relationships.

Learning Objectives

• Identify ecological organization levels from individual organisms to ecosystems
• Explain how properties at higher levels emerge from interactions among organisms and their environment
• Use examples from Alberta (trout, fish communities, Bow River ecosystem) to compare levels

Learning Objectives

• Explain how birth rate, death rate, immigration, and emigration interact to change population size.
• Describe how abiotic constraints and resource availability influence where populations can persist.
• Interpret population trends to understand local extirpations and range expansions.+ Show more

Learning Objectives

• Identify major sources of anthropogenic pollution relevant to Alberta (nutrient runoff, hydrocarbons, and airborne deposition).
• Explain how pollutants move through ecosystems (runoff, atmospheric deposition, and food-web transfer).
• Describe how pollution can change organism health and ecosystem chemistry, including risks from bioaccumulation.+ Show more

Learning Objectives

• Analyze how forces, machine function, and structural safety work together in an integrated design.
• Use criteria to compare alternative design options for real-world conditions such as wind, snow, and loads.
• Apply basic calculations and evidence to justify a reasoned choice among design alternatives.

Learning Objectives

• Explain how free-body diagrams (FBDs) represent forces acting on an object
• Determine net force magnitude and direction by combining perpendicular force components
• Decompose forces on inclined surfaces into perpendicular (normal) and parallel (friction/gravity) components+ 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

• Explain how temperature relates to the average random kinetic energy of particles
• Describe how microscopic particle motion and particle number influence thermal energy
• Use molecular speed ideas to interpret differences in air mass temperatures+ Show more

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

• Explain how particle arrangement, spacing, and movement define solids, liquids, and gases
• Describe how temperature and pressure can cause transitions between states of matter
• Use observable properties (shape, volume, flow, compressibility) to identify the state of a substance

Learning Objectives

• Explain how environmental and human health effects can become part of science-based constraints in design.
• Identify ways materials and processes can impact air, water, soil, and local communities.
• Distinguish solutions that are technically feasible from solutions that are socially and environmentally responsible.

Learning Objectives

• Compare embryonic development stages across different taxa.
• Identify conserved developmental structures such as pharyngeal pouches and limb buds.
• Analyze how developmental timing supports evolutionary relationships.+ Show more

Learning Objectives

• Analyze patterns in the fossil record to understand evolutionary relationships.
• Identify key concepts such as stratigraphy, index fossils, and transitional forms.
• Interpret data from fossil assemblages and understand their significance in macroevolution.+ Show more

Learning Objectives

• Understand how mathematical and statistical tools are used to analyze evolutionary processes.
• Apply concepts like allele frequency, Hardy-Weinberg equilibrium, and population dynamics to real data.
• Interpret graphical displays of fitness and trait changes over time.+ Show more

Learning Objectives

• Identify different types of anatomical structures that provide evidence for evolution.
• Differentiate between homologous and analogous structures through examples.
• Understand how morphological and genetic data contribute to phylogenetic analysis.+ Show more

Learning Objectives

• Understand the mechanisms that lead to speciation and biodiversity.
• Identify different types of reproductive barriers and their roles in lineage divergence.
• Describe examples of adaptive radiation and plant polyploid speciation.+ Show more

Learning Objectives

• Understand different representations of atomic structures such as particle, ball-and-stick, and lattice models.
• Identify how atomic models illustrate molecular and extended structures like water molecules and salt crystals.
• Connect subatomic particle relationships to atomic number and chemical formulas.+ Show more

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

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

Learning Objectives

• Identify observable signs indicating a chemical reaction has occurred.
• Explain the significance of mass conservation in chemical reactions.
• Differentiate between physical and chemical changes based on evidence and energy considerations.+ Show more

Learning Objectives

• Identify different types of representations used to convey matter interactions.
• Interpret graphs, equations, and tabulated data in scientific contexts.
• Select appropriate representations for quantitative comparison and communication.+ Show more

Learning Objectives

• Describe the production pathways from natural resources to common synthetic materials.
• Explain the processes of polymerization, refining, and chemical alteration in manufacturing.
• Identify examples of synthetic materials like polyethylene, PET, and nylon and their production steps.+ Show more

Learning Objectives

• Understand the concept of mole ratios and how they relate to balanced chemical equations.
• Apply ratio reasoning to calculate amounts of reactants and products in chemical reactions.
• Use conservation principles to predict reagent needs and product yields.+ Show more

Learning Objectives

• Understand how physical and biological disturbances impact ecosystems.
• Identify examples of disturbances such as wildfire, flooding, invasive species, and disease outbreaks.
• Explain mechanisms of resilience, resistance, and succession in ecosystem recovery.+ Show more

Learning Objectives

• Understand how resource availability influences population growth and decline.
• Interpret logistic growth curves and concepts of carrying capacity.
• Analyze how competition affects ecosystem populations using real-world examples.+ Show more

Learning Objectives

• Describe different types of species interactions such as predation, competition, parasitism, mutualism, and commensalism.
• Analyze food web diagrams to understand direct and indirect effects among species.
• Identify examples of species interactions in terrestrial and aquatic ecosystems.+ Show more

Learning Objectives

• Identify and describe the functions of key organelles in plant and animal cells.
• Connect cell structure to its role in processes like transport, synthesis, and compartmentalization.
• Compare eukaryotic and prokaryotic cells, highlighting differences in organization and specialization.+ Show more

Learning Objectives

• Observe plant epidermis and protists using microscopy to identify cellular structures.
• Differentiate between unicellular and multicellular organisms based on microscopic observations.
• Understand the hierarchical organization from cells to tissues and organs.+ Show more

Learning Objectives

• Describe how light energy is converted into chemical energy during photosynthesis.
• Explain how organisms harvest energy from food through cellular respiration.
• Connect the processes of photosynthesis and respiration across different taxa.+ Show more

Learning Objectives

• Describe how matter is recycled within organisms through processes like digestion, biosynthesis, and respiration.
• Explain the flow of carbon and nitrogen in biological systems and their transformation during metabolic pathways.
• Identify key biochemical pathways involved in matter cycling, such as macromolecule synthesis and decomposition.+ Show more

Learning Objectives

• Describe the functions and interactions of circulatory, respiratory, digestive, and nervous systems in multicellular animals.
• Explain system-level dependencies such as oxygen transport and nutrient absorption.
• Compare human mammalian organ systems with plant vascular transport interactions.+ Show more

Learning Objectives

• Identify key drivers of climate change such as greenhouse gases, land-use change, and natural variability.
• Analyze temperature and CO2 records to understand climate trends.
• Assess impacts of climate change on sea levels, precipitation, and agriculture.+ Show more

Learning Objectives

• Understand how human activities affect ecosystems and environment.
• Identify scientific tools used to monitor environmental changes.
• Analyze mitigation strategies for reducing human impacts.+ Show more

Learning Objectives

• Explain how internal transport systems move nutrients from where they are obtained to body tissues that use them.
• Describe the roles of digestion, circulation, and cellular use of nutrients in maintaining organism function.
• Identify how organisms remove unusable materials as waste during transport.

Learning Objectives

• Identify different types of natural hazards and their characteristics.
• Interpret historical and instrumental data to analyze hazard patterns.
• Understand the concepts of recurrence intervals and hazard maps.+ Show more

Learning Objectives

• Analyze how population growth affects demand for water, energy, land, and resources.
• Evaluate environmental consequences of increased consumption and urbanization.
• Compare regional examples of resource use and environmental pressures.+ Show more

Learning Objectives

• Describe the nature of gravitational, electric, and magnetic interactions as long-range forces.
• Explain how gravity acts universally and how electromagnetic forces can attract or repel.
• Relate gravitational attraction to mass and distance qualitatively.+ Show more

Learning Objectives

• Understand how geologic processes influence the distribution of mineral, energy, and groundwater resources.
• Connect plate tectonics, sedimentation, weathering, and biological activity to resource locations.
• Evaluate the impacts of resource extraction and sustainability considerations.