Grade 7 Science Worksheets

Learning Objectives

• Explain how energy moves through trophic levels in a food web and why decomposers matter for energy flow.
• Describe how photosynthesis captures energy and cellular respiration releases energy in living things.
• Use energy pyramids to model the decrease in available energy between trophic levels and relate this to population size.

Learning Objectives

• Explain how unequal solar heating and Earth’s rotation drive global atmospheric circulation (Hadley, Ferrel, and polar cells).
• Describe how the Coriolis effect shapes prevailing winds and helps form jet streams.
• Connect large-scale ocean circulation (gyres and major currents like the Gulf Stream) to regional climate patterns.

Learning Objectives

• Explain how reproductive isolation and geographic separation can lead to speciation.
• Describe how polyploidy and adaptive radiation can create new species.
• Interpret biogeographic and diversification patterns to understand biodiversity over time.

Learning Objectives

• Explain how momentum changes when objects collide using the conservation of momentum idea
• Describe how forces act during collisions through Newton’s third law (equal and opposite reactions)
• Distinguish elastic from inelastic collisions and predict likely outcomes

Learning Objectives

• Explain how carrying capacity and resource availability affect population size and growth rate.
• Interpret logistic growth ideas using examples such as limited food, water, and shelter.
• Connect birth, death, immigration, and emigration to population change in ecosystems.+ Show more

Learning Objectives

• Understand how load paths are transferred in buildings
• Identify primary and secondary load routes
• Recognize factors affecting load redistribution+ Show more

Learning Objectives

• Understand different prototyping approaches, including physical models, digital models, and laboratory rigs.
• Identify the advantages and limitations of each prototyping method for testing strength and failure modes.
• Recognize instrumentation tools used in prototyping, such as strain gauges and displacement transducers.+ Show more

Learning Objectives

• Identify the key steps in the engineering design process.
• Explain the importance of defining functional requirements and constraints.
• Describe how sketches and decision matrices assist in comparing design options.+ Show more

Learning Objectives

• Understand how beams respond to loads through bending, shear, axial force, and torsion.
• Identify the effects of geometry and support conditions on internal force distribution.
• Describe the concepts of bending moment and shear force in beams and cantilevers.+ Show more

Learning Objectives

• Understand the key material properties such as density, tensile strength, compressive strength, stiffness, ductility, toughness, and thermal expansion.
• Learn how these properties affect structural performance, durability, and failure modes.
• Compare common construction materials—wood, steel, and reinforced concrete—in terms of strength-to-weight ratio, deformation, and failure.+ Show more

Learning Objectives

• Understand the different methods used to test material properties such as tensile, compression, and bending assessments.
• Learn about non-destructive testing techniques like ultrasonic and hardness measurements.
• Explore the concept of anisotropy in timber and composite materials.+ Show more

Learning Objectives

• Understand the factors that influence the durability of steel and other materials
• Identify protective measures such as coatings and cathodic protection
• Learn how environmental exposure impacts material lifespan+ Show more

Learning Objectives

• Identify the concept of buckling in slender compression columns.
• Recognize the factors that influence buckling failure in structural members.
• Analyze how material choice and shape affect buckling resistance.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand what engineered timber is and how it differs from traditional wood.
• Identify different advanced construction materials such as fibre-reinforced polymers and high-performance concrete.
• Explain how manufacturing processes and microstructure improve material properties like strength and durability.+ Show more

Learning Objectives

• Identify key structures of a cell and what they do
• Explain the main function of the cell membrane
• Connect cell structure to how cells survive and communicate

Learning Objectives

• Understand the concept of species richness and its importance in ecological communities.
• Identify different habitats based on biodiversity measures.
• Interpret values of biodiversity indices and their ecological implications.+ Show more

Learning Objectives

• Explain how the urban heat island forms due to surface materials, vegetation loss, and human heat sources.
• Describe how impervious surfaces, reduced evapotranspiration, and building geometry influence local temperature and air movement.
• Evaluate mitigation strategies such as urban greenery, cool pavements, and strategic shading and predict their likely effects.

Learning Objectives

• Define resource tradeoffs and their importance in human decision-making.
• Identify various factors that influence resource management.
• Analyze the consequences of different choices on ecosystems and communities.+ Show more

Learning Objectives

• Identify different types of air masses based on temperature and moisture
• Understand how boundaries, called fronts, form between air masses
• Explain how air masses influence weather changes like storms and precipitation+ Show more

Learning Objectives

• Understand how to define design problems with clear criteria and constraints.
• Identify real-world examples of specifying measurable success and constraints.
• Translate societal and environmental needs into quantitative targets for solutions.+ Show more

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter during decomposition
• Describe how carbon and nitrogen move through detrital pools and primary producers over time
• Analyze how abiotic conditions (like moisture, temperature, and oxygen) affect decomposition rates and soil fertility

Learning Objectives

• Understand the composition and manufacturing processes of engineered timber, fibre-reinforced polymers, and high-performance concrete.
• Explain how microstructure influences the strength, stiffness, and durability of advanced construction materials.
• Describe trade-offs involved in using novel materials, including cost, fabrication complexity, and performance.+ Show more

Learning Objectives

• Explain how kinetic energy depends on mass and speed using proportional reasoning.
• Interpret kinetic and potential energy graphs to describe changes during motion.
• Use kinetic energy relationships to predict how doubling mass or speed affects the result.

Learning Objectives

• Understand models that represent potential energy stored in systems based on object arrangement and interactions.
• Identify examples of gravitational, elastic, and magnetic potential energy.
• Explain how changes in spatial arrangements affect stored energy and subsequent motion or work.+ Show more

Learning Objectives

• Identify measurable physical properties such as density, melting point, boiling point, color, and solubility.
• Compare different substances based on their physical attributes to support identification.
• Explain how properties like density and solubility are used to sort and choose materials for specific purposes.+ Show more

Learning Objectives

• Describe the primary structural elements involved in load transfer within structures.
• Explain how loads move from slabs or decks through beams, columns, and foundations.
• Distinguish between dead loads and live loads in structural systems.+ Show more

Learning Objectives

• Understand different conservation strategies and their roles in protecting ecosystems.
• Identify human impacts on biodiversity and how strategies aim to mitigate these effects.
• Recognize the importance of adaptive management in conservation efforts.+ Show more

Learning Objectives

• Explain how receptor proteins detect signaling molecules and start intracellular responses in cells.
• Compare chemical signaling with electrical signaling in how they coordinate activities.
• Describe how direct cell-to-cell connections like gap junctions and plasmodesmata help signals spread quickly.+ Show more

Learning Objectives

• Understand how inclined planes distribute applied force and work over distance.
• Identify the force components parallel and perpendicular to a slope.
• Calculate the mechanical advantage of inclined planes in practical contexts.+ Show more

Learning Objectives

• Understand how phenotype results from genetic and environmental interactions.
• Identify examples of traits influenced by environmental factors.
• Distinguish inherited traits from environmentally modulated traits.+ Show more

Learning Objectives

• Define carrying capacity and explain its significance in ecosystems.
• Identify limiting factors that influence population growth.
• Describe the effects of exceeding carrying capacity in natural environments.+ Show more

Learning Objectives

• Define solubility and identify factors that influence it
• Explain the role of solutes and solvents in dissolving processes
• Describe how temperature, surface area, and pressure affect solubility+ Show more

Learning Objectives

• Understand the principles of mechanical separation techniques such as filtration and sedimentation.
• Identify factors affecting filtration efficiency, including pore size and flow behaviour.
• Explore applications of filtration in separating heterogeneous mixtures like suspensions and precipitates.+ Show more

Learning Objectives

• Analyze how increasing human populations affect demand for water, energy, land, and resources.
• Evaluate environmental consequences such as biodiversity loss, water scarcity, and carbon emissions.
• Understand regional examples demonstrating how consumption patterns influence ecological pressures.+ Show more

Learning Objectives

• Understand the principles of Earth's atmospheric and oceanic circulation cells.
• Identify the effects of the Coriolis effect on wind and ocean currents.
• Connect large-scale circulation patterns to regional climate zones.+ Show more

Learning Objectives

• Describe the main processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Illustrate the interactions among Earth’s atmosphere, hydrosphere, and geosphere in water movement.
• Explain the pathways and residence times of water within different Earth systems such as river basins, aquifers, and coastal waters.+ Show more

Learning Objectives

• Understand the main processes involved in the Earth's rock cycle.
• Describe transformations among igneous, sedimentary, and metamorphic rocks.
• Identify geological processes like melting, crystallization, weathering, and burial.+ Show more

Learning Objectives

• Understand the key geologic processes that modify Earth’s surface, including weathering, erosion, transport, and deposition.
• Differentiate between mechanical and chemical weathering and identify agent-specific landforms.
• Explain how landforms such as canyons, deltas, moraines, and coastal features are formed through surface processes.+ Show more

Learning Objectives

• Understand how uneven solar heating influences regional and global climate.
• Interpret temperature gradients, sea-surface temperature maps, wind vectors, and precipitation records.
• Explain phenomena such as El Niño, monsoons, and prevailing wind belts.+ Show more

Learning Objectives

• Understand the geologic evidence supporting plate tectonics and continental drift.
• Identify features such as earthquakes, volcanoes, and seafloor structures associated with plate movements.
• Explain how fossils, rock types, and matching continental margins provide clues about past supercontinents like Pangaea.+ Show more

Learning Objectives

• Explain how erosion by different agents (running water, glaciers, wind, and gravity) leads to distinctive sediment results.
• Describe how transport energy and distance affect grain size and sorting.
• Use sediment clues to infer past environments and landscape evolution.

Learning Objectives

• Use balanced chemical equations to describe how quantities of reactants relate to quantities of products.
• Calculate and interpret mole ratios to predict relative amounts and mass relationships in chemical transformations.
• Apply conservation of matter to check whether calculated product amounts and reagent needs are reasonable.+ Show more

Learning Objectives

• Understand the concept of mole ratios in chemical equations.
• Apply balanced chemical equations to determine relative amounts of reactants and products.
• Use proportional reasoning to predict quantities needed or produced in reactions.+ Show more

Learning Objectives

• Understand how to interpret line graphs and identify trends
• Learn how to select appropriate graph types for data
• Develop skills in analyzing data trends using trend lines+ Show more

Learning Objectives

• Understand the concept of structural optimization
• Identify benefits of design refinement
• Learn about topology and form optimization principles+ Show more

Learning Objectives

• Understand the principles of Earth's atmospheric and oceanic circulation patterns.
• Identify the major cells, winds, and currents involved in global climate regulation.
• Explain how circulation influences regional weather, precipitation, and temperature distributions.+ Show more

Learning Objectives

• Understand the basic concepts of climate zones and how they are characterized by temperature and precipitation.
• Recognize the influence of ocean currents, topography, and atmospheric circulation on regional climate differences.
• Interpret temperature maps, wind vectors, and precipitation records to analyze climate variability and phenomena like El Niño and monsoon regimes.