Grade 7 Science Worksheets

Learning Objectives

• Explain what air masses are and how their source regions affect temperature and moisture.
• Describe how fronts form when different air masses meet.
• Compare the weather changes commonly associated with warm fronts and cold fronts.

Learning Objectives

• Understand the process of thermal conduction.
• Identify examples of conduction in everyday life.
• Explain the molecular mechanisms underlying conduction.+ 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 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 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

• 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

• 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

• 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

• Explain how fossils form and what conditions help preserve remains, traces, or imprints
• Use fossil assemblages to infer past environments such as water, climate shifts, and ecological change
• Interpret how fossil evidence supports connections between sediment layers and broader Earth history

Learning Objectives

• Explain how friction opposes relative motion between surfaces.
• Compare static friction and kinetic friction using real examples.
• Identify how surface texture and normal force affect frictional force.+ Show more

Learning Objectives

• Explain how species richness and evenness describe biodiversity in a habitat.
• Interpret common biodiversity index values and compare diversity across habitats.
• Describe how habitat heterogeneity and niche diversity can increase species turnover.+ Show more

Learning Objectives

• Understand the criteria used to assess species conservation risk.
• Interpret evidence related to population trends, threats, and recovery potential.
• Identify factors influencing species vulnerability such as land use and genetic diversity.+ Show more

Learning Objectives

• Explain how free-body diagrams represent forces acting on an object using properly labeled arrows.
• Determine the net force magnitude and direction by combining perpendicular (and parallel) force components.
• Use conventions for inclined surfaces to correctly decompose gravity into parallel and perpendicular components.

Learning Objectives

• Describe hierarchical levels of organization from individual organisms to the biosphere
• Explain how producers, consumers, and decomposers affect energy flow through trophic levels
• Connect organism structures and habitat relationships to ecosystem stability and resilience

Learning Objectives

• Describe how energy flows through an ecosystem from producers to consumers.
• Identify the roles of producers, consumers, and decomposers in matter and energy transfer.
• Explain why energy decreases at higher trophic levels in food chains and webs.+ Show more

Learning Objectives

• Explain how protons, neutrons, and electrons determine atomic identity and isotopic variation
• Relate atomic number and mass number to element identity and an isotope’s nucleus
• Describe basic electron arrangements and connect simple atomic models to observable patterns

Learning Objectives

• Understand how habitat fragmentation affects ecosystems and species.
• Identify the consequences of habitat fragmentation on biodiversity.
• Analyze strategies like corridors to mitigate habitat fragmentation effects.+ Show more

Learning Objectives

• Identify variables that can influence scientific experiments involving plant germination.
• Understand methods to control and manage variables such as randomization, blocking, and replication.
• Explain the importance of systematic variable control for obtaining reliable experimental results.+ Show more

Learning Objectives

• Understand the cause-and-effect relationships in predator-prey interactions.
• Identify how changes in predator or prey populations affect community composition.
• Explain feedback mechanisms in ecological systems.+ Show more

Learning Objectives

• Explain how meiosis produces genetically different reproductive cells
• Describe how crossing over and independent assortment increase genetic variation
• Connect genetic variation from meiosis to why siblings are not identical and to evolution over time

Learning Objectives

• Interpret how slope and curvature in position-time graphs relate to velocity and changing velocity
• Interpret how slope in velocity-time graphs relates to acceleration
• Use correct graph patterns to describe constant velocity and changing motion

Learning Objectives

• Define ecosystem components and distinguish biotic from abiotic factors in a habitat.
• Describe trophic categories (producers, consumers, decomposers) and their general roles.
• Explain how energy flows from sunlight to organisms and how matter cycles through ecosystems.+ Show more

Learning Objectives

• Identify how the atmosphere, hydrosphere, geosphere, and biosphere interact as part of Earth’s system
• Explain how water, gases, and rock surfaces move between spheres and affect living things
• Use evidence to describe cause-and-effect relationships across Earth’s spheres

Learning Objectives

• Explain how net force affects an object's motion (speeding up, slowing down, changing direction, or staying at rest).
• Differentiate between balanced forces (net force of zero) and unbalanced forces (net force not zero).
• Use everyday examples to identify the direction and effect of forces like friction and gravity.

Learning Objectives

• Understand how microscopic particles move and what factors influence their speed
• Explain the relationship between particle motion and temperature
• Describe how particle behavior affects thermal energy and pressure+ Show more

Learning Objectives

• Compare scaled physical models, digital finite-element models, and laboratory load rigs for testing strength, stiffness, and failure modes.
• Explain how strain gauges and displacement transducers are used to measure structural response during prototyping.
• Describe limitations of scaling, including effects of material heterogeneity and joint behavior.

Learning Objectives

• Describe how an inclined plane changes the force needed to move a load.
• Identify the component of force parallel and perpendicular to a ramp surface.
• Calculate mechanical advantage using input force and load (in simple examples).+ Show more

Learning Objectives

• Explain how fossils can preserve remains, traces, and imprints of ancient organisms.
• Describe how fossil assemblages and sediment layers provide evidence about past environments and Earth history.
• Use fossil types and rock-layer clues to make claims about where and when organisms lived.

Learning Objectives

• Explain how diffusion happens due to the random motion of particles moving from higher concentration to lower concentration.
• Describe how mixing occurs without particles stopping or changing into new substances.
• Predict how temperature affects the rate of diffusion using the particle model.

Learning Objectives

• Understand how seasonal thermal cycles influence energy storage and transfer in regional environments.
• Identify the roles of solar input, albedo variation, and latent heat in climate patterns.
• Explain how radiative, latent, and sensible energy fluxes combine to affect ecosystems and landscapes.+ Show more

Learning Objectives

• Understand how melting point compares indicate purity
• Identify how conductivity changes are related to purity
• Recognize various methods used to assess material contamination+ Show more

Learning Objectives

• Explain how energy captured by producers is transferred to consumers through trophic levels
• Use quantitative efficiency ideas (percent energy transfer) to predict how much energy becomes available at higher levels
• Describe why biomass and energy availability often decrease from one trophic level to the next

Learning Objectives

• Explain how energy transfer affects particle motion and arrangement during phase changes.
• Identify which phase changes involve energy being absorbed or released (melting, freezing, vaporization, condensation, sublimation, deposition).
• Use temperature and pressure ideas to predict how a material may change state.+ Show more

Learning Objectives

• Explain how weather variables (temperature, wind, humidity, and precipitation) can be compared across time and location to describe patterns.
• Differentiate weather from climate using timescales and averages/variability.
• Describe how pressure changes and the movement of air masses influence weather patterns.+ Show more

Learning Objectives

• Explain how strength, stiffness, and density affect the suitability of materials for load-bearing structures.
• Describe how material behavior under compression, tension, and bending influences long-term performance.
• Connect material choice to environmental resilience, including freeze–thaw, snow loads, and maintenance needs.

Learning Objectives

• Describe the hierarchical levels of organization from individuals to the biosphere.
• Identify different roles of producers, consumers, and decomposers in ecosystems.
• Explain how energy flows through trophic levels and its impact on system stability.+ Show more

Learning Objectives

• Explain how reliability and variability affect confidence in experimental conclusions
• Identify common sources of error and describe how they change measurements and uncertainty
• Use evidence from repeated trials to decide whether design changes are justified

Learning Objectives

• Understand the different types of chemical reactions, focusing on synthesis reactions.
• Learn to identify synthesis reactions through descriptions and diagrams.
• Recognize the key features of synthesis reactions at the particle level.

Learning Objectives

• Identify the main idea of a passage about the particle model of matter.
• Describe how particle spacing and motion help explain density, diffusion, and pressure.
• Use key details to connect microscopic particle behavior to measurable macroscopic properties.

Learning Objectives

• Explain how energy flows from producers to consumers through a food web.
• Describe how matter cycles when organisms eat, respire, and decompose.
• Identify how changes in one part of a food web can affect other organisms.

Learning Objectives

• Explain how organisms function as systems made of internal structures with specific roles
• Identify examples of how body structures process inputs such as food, oxygen, and water
• Describe how structure and function work together to support life processes+ Show more

Learning Objectives

• Differentiate pure substances from mixtures using the ideas of fixed vs. variable composition and consistent vs. variable properties.
• Identify elements and compounds by describing how their particles are arranged.
• Distinguish examples of mixtures (such as salt water, air, suspensions, and alloys) and explain why they vary.

Learning Objectives

• Describe the major atmospheric and oceanic circulation cells and their roles in climate.
• Explain how Earth's rotation and the Coriolis effect influence wind and ocean current patterns.
• Connect the circulation cells and currents to regional climate and weather patterns.+ Show more

Learning Objectives

• Summarize how habitat alteration, pollution, resource extraction, and non-native species can change ecosystems.
• Explain how human impacts can affect species composition, ecosystem functions, and long-term resilience.
• Identify stewardship principles such as mitigation, habitat protection, restoration priorities, and evidence-based monitoring.

Learning Objectives

• Identify physical and chemical properties of matter using observable and measurable evidence.
• Explain how properties help classify substances under consistent conditions.
• Use everyday examples (ice, sand, iron) to connect properties to identification.