Grade 7 Science Worksheets

Learning Objectives

• Explain how thermal conductivity and specific heat capacity affect heat transfer and temperature change.
• Compare how density, porosity, and moisture content influence effective thermal conductivity in building materials.
• Describe why phase change materials can change thermal behavior during heating or cooling.+ Show more

Learning Objectives

• Describe how temperature differences create density differences that drive convection
• Compare natural and forced convection using real-world examples
• Identify features of boundary layers and flow patterns that affect heat transfer+ Show more

Learning Objectives

• Identify observable evidence that a chemical change has occurred.
• Explain particle-level bond changes during chemical reactions.
• Distinguish chemical changes from physical changes using observations and reasoning.

Learning Objectives

• Explain how temperature relates to average random kinetic energy of particles.
• Describe how thermal energy depends on particle number and phase.
• Use molecular motion ideas to compare thermal states and pressures.

Learning Objectives

• Explain how calorimetry uses temperature change to determine energy transfer
• Calculate and compare heat energy changes using specific heat and mass
• Describe how heat moves during melting, heating, and combustion scenarios

Learning Objectives

• Explain how conduction transfers kinetic energy through solids and across interfaces
• Compare how different materials conduct heat based on conductivity
• Use ideas of thermal contact resistance to predict temperature gradients in building systems+ Show more

Learning Objectives

• Explain how solution concentration describes the amount of solute compared with solvent
• Identify how concentration changes boiling point elevation and freezing point depression
• Use concentration measures such as mass percent and grams per litre to describe dilution or saturation+ Show more

Learning Objectives

• Explain how solubility changes with temperature for solids in liquids and with pressure for gases
• Describe how agitation and particle size affect the rate of dissolving and sometimes the amount dissolved
• Use evidence from examples (such as salts in lakes and road salt) to predict solubility outcomes under new conditions

Learning Objectives

• Explain how the law of conservation of mass applies to closed and near-closed systems in science investigations
• Use mass-balance reasoning to compare measured and expected masses in practical scenarios
• Identify how reaction stoichiometry and waste accounting rely on conservation of mass+ Show more

Learning Objectives

• Explain that pure substances have uniform composition and characteristic properties.
• Distinguish elements from compounds using physical and chemical tests.
• Use fixed melting and boiling points to support identification of pure substances.+ Show more

Learning Objectives

• Describe how melting, freezing, evaporation, and condensation involve changes in particle kinetic and potential energy
• Connect phase changes to energy absorption or release as particles rearrange
• Explain latent heat as energy transferred during a phase change without changing chemical identity+ Show more

Learning Objectives

• Describe matter as made of discrete particles with spaces and motion
• Use the particle model to explain diffusion, compressibility, and density changes
• Relate particle kinetic energy and particle spacing to the properties of solids, liquids, and gases+ Show more

Learning Objectives

• Identify separation methods that match a mixture’s physical properties (particle size, solubility, magnetism, or boiling point).
• Explain how filtration, decanting, evaporation, and magnetic separation separate substances without changing their chemical identity.
• Use observable results to infer what physical properties were used in a separation.

Learning Objectives

• Understand how simple systems and mechanisms transfer motion and force.
• Identify components like gears, pulleys, levers, and linkages in mechanisms.
• Explain how connecting components affect performance, such as gear ratios.+ Show more

Learning Objectives

• Explain how comparative anatomy supports evolution using homologous and analogous structures
• Identify examples of vestigial organs and describe how they can indicate common ancestry
• Use morphological comparisons to make basic claims about evolutionary relatedness

Learning Objectives

• Learn what free-body diagrams represent and how forces are shown.
• Identify different forces acting on objects in various situations.
• Understand how to draw simple net force diagrams for objects on inclined surfaces.

Learning Objectives

• Understand different models that represent potential energy stored in systems.
• Identify how changes in object arrangement affect stored energy.
• Recognize examples of gravitational, elastic, and magnetic potential energy.+ Show more

Learning Objectives

• Identify physical properties (such as color, texture, state, and density) and explain how they can be observed or measured.
• Distinguish chemical properties from physical properties using examples like flammability and rusting.
• Use properties to support the classification of substances under consistent conditions.

Learning Objectives

• Understand different models that represent potential energy stored in systems.
• Identify examples of gravitational, elastic, and magnetic potential energy.
• Explain how changes in object arrangement alter stored energy.+ Show more

Learning Objectives

• Understand how building orientation influences thermal performance.
• Identify strategies for passive solar gain and thermal barriers.
• Examine regional design considerations for Alberta's climate zones.+ Show more

Learning Objectives

• Understand the structure and function of DNA molecules and chromosomes
• Learn how chromosomes organize genetic material within cells
• Explore how DNA sequences encode traits and influence observable characteristics+ Show more

Learning Objectives

• Explain how space technology (telescopes, satellites, spacecraft, and instruments) increases what humans can observe beyond Earth
• Describe the roles of robotic missions and space stations in collecting and interpreting scientific data
• Use examples of historical missions to connect specific technologies to expanded observational reach and better inference

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without direct contact.
• Describe how solar radiation intensity, absorptivity, and emissivity affect net radiative heating.
• Use emissivity differences to predict daytime warming and nocturnal cooling of landscapes and buildings.

Learning Objectives

• Distinguish biotic factors from abiotic factors in an ecosystem.
• Explain cause-and-effect relationships between abiotic conditions and resource access, shelter, and survival for organisms.
• Describe how gradients in abiotic factors can shape patterns in plant, animal, and microbe communities.

Learning Objectives

• Explain how conduction transfers thermal energy through particle collisions and electron movement in solids
• Compare thermal conductivity of common building materials and predict heat-flow direction
• Use contact resistance and material interfaces to describe temperature gradients in real structures

Learning Objectives

• Understand how energy changes occur during chemical reactions, including exothermic and endothermic processes.
• Identify the relationship between energy transfer and bond breaking and formation.
• Distinguish chemical changes from physical changes based on energy evidence and other signs.

Learning Objectives

• Describe how stratification, light penetration, and oxygen gradients form in ponds and lakes.
• Explain how abiotic gradients influence community composition and vertical zonation.
• Compare how seasonal thermal turnover changes dissolved oxygen, nutrient mixing, and habitat suitability.+ Show more

Learning Objectives

• Classify matter as an element, compound, or mixture based on composition and whether substances are chemically combined.
• Differentiate homogeneous and heterogeneous mixtures using the appearance of uniformity and visible parts.
• Predict how physical versus chemical changes could affect elements, compounds, and mixtures.

Learning Objectives

• Define physical change and distinguish it from chemical change.
• Identify examples of physical changes in everyday life.
• Understand the reversibility of physical changes.+ Show more

Learning Objectives

• Explain equilibrium as the condition where the vector sum of forces equals zero
• Differentiate static equilibrium from dynamic equilibrium using acceleration and velocity
• Analyze forces such as weight, normal force, and tension to predict an object’s motion

Learning Objectives

• Compare design alternatives using clear criteria and constraints to select the best solution.
• Explain how iterative refinement changes a design when test results do not meet constraints.
• Justify a final choice by linking criteria to observed outcomes and describing managed tradeoffs.

Learning Objectives

• Explain biodiversity as genetic, species, and ecosystem diversity
• Describe how richness, evenness, and habitat heterogeneity help measure biodiversity
• Interpret what biodiversity metrics can reveal about ecosystem resilience and ecosystem function+ Show more

Learning Objectives

• Explain how the solar system formed from smaller materials and how that relates to planet properties.
• Compare terrestrial and gas/ice giant planets using evidence such as composition, atmospheres, and geology.
• Describe how orbital relationships and planetary tilt/eccentricity affect motion, seasons, and observed phases/eclipses.

Learning Objectives

• Explain how conservation of mass is used to create mass budgets in closed or near-closed systems
• Connect conservation of mass to reaction stoichiometry and balanced chemical equations
• Use environmental mass balances to interpret measured versus expected masses in real situations

Learning Objectives

• Identify biotic and abiotic components of an ecosystem and explain how each affects living things
• Describe trophic categories (producers, consumers, decomposers) and their roles in energy and matter flow
• Use examples from ponds and forests to explain simple food chains and how nutrients are recycled

Learning Objectives

• Understand that mass remains constant in closed systems during physical and chemical changes.
• Identify and explain examples of mass conservation in chemical reactions.
• Interpret data from sealed-container reactions to observe mass changes or the lack thereof.+ Show more

Learning Objectives

• Compare elements and compounds using atomic composition, chemical formulas, and bonding
• Explain how chemical combination changes observable properties such as melting point and conductivity
• Identify substances as elements or compounds based on particle type and fixed ratios

Learning Objectives

• Identify signs of chemical reactions such as gas production, heat exchange, and color change.
• Observe and describe the formation of gases during chemical reactions.
• Connect observable indicators to the underlying particle interactions and reaction pathways.

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks transform through the rock cycle.
• Describe key energy-driven processes (melting, crystallization, burial, metamorphism, and weathering).
• Trace a material pathway using examples from subduction zones and mid-ocean ridges.

Learning Objectives

• Understand the concepts of heat and temperature and how they differ.
• Learn about units of measurement for heat and temperature.
• Explore how calorimetry measures energy exchange during thermal processes.+ Show more

Learning Objectives

• Explain how heritable variation and environmental pressures can change trait frequencies in a population over generations
• Describe how differential survival and reproduction lead to adaptation
• Use examples such as antibiotic resistance or island finch beak size to connect traits, selection, and evolution

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

• Explain what adaptations are and how they help organisms survive or reproduce in specific environments.
• Identify evidence for adaptation using comparisons among populations, fossil records, and observed responses to environmental change.
• Use an example (peppered moth coloration) to describe how selection can favor traits that match local conditions.

Learning Objectives

• Explain how organisms function as interacting systems made of internal structures with specific roles
• Describe how structures help process inputs such as food, oxygen, and water into forms the organism can use
• Use evidence to connect structure and function in body systems (digestive, respiratory, and excretory)

Learning Objectives

• Explain how optimization metrics and constraints help guide scientific design choices
• Identify tradeoffs when improving one performance measure may worsen another
• Apply metric-based reasoning to decide which option best meets an overall goal

Learning Objectives

• Describe how competition, predation, mutualism, and parasitism influence ecological niches and species survival.
• Explain how niche partitioning reduces competition and helps species coexist in the same habitat.
• Identify the role of keystone species in shaping community composition and stability.+ Show more

Learning Objectives

• Explain how forces (pushes and pulls) can change an object’s motion.
• Differentiate balanced forces from unbalanced forces using the concept of net force.
• Use evidence from real-life examples to predict changes in speed or direction.+ Show more

Learning Objectives

• Identify observable evidence that a chemical change has occurred (color change, gas production, precipitate formation, temperature/energy change, odor change).
• Explain chemical change at the particle level as bond breaking and bond forming, not just particle rearrangement.
• Use evidence from real-world examples (rusting iron, combustion of natural gas) to support claims about chemical vs. physical changes.