Grade 7 Science Worksheets

Learning Objectives

• Explain how energy is transferred through conduction, convection, and radiation.
• Relate thermal energy flow to temperature gradients, specific heat, and phase changes.
• Identify observable phenomena resulting from different heat transfer mechanisms.+ Show more

Learning Objectives

• Understand the importance of safety standards in technological design.
• Identify key safety considerations such as building codes, electrical safety, and safety margins.

Learning Objectives

• Understand how physical properties change with scale in prototypes and models.
• Analyze the concepts of surface-to-volume ratios, square-cube law, and Reynolds number in scaled systems.
• Predict performance differences and limitations of using scaled models in engineering and biology.+ Show more

Learning Objectives

• Understand the law of conservation of mass and its fundamental principles.
• Apply mass accounting to chemical and physical processes in closed systems.
• Recognize how balancing chemical equations relates to mass conservation.+ Show more

Learning Objectives

• Understand different types of data representations such as tables and graphs.
• Interpret trends and relationships from graphical data displays.
• Select appropriate graph types for different data sets.+ Show more

Learning Objectives

• Interpret distance–time graphs to identify motion patterns such as steady movement, speeding up, slowing down, and rest.
• Understand and describe velocity–time graphs, relating slopes to speed and areas to displacement.
• Compare different types of motion graphs qualitatively and connect them to real-world examples like bus routes and timed runs.

Learning Objectives

• Understand the difference between speed, velocity, and acceleration
• Identify scalar and vector quantities related to motion
• Interpret motion scenarios qualitatively, including constant and changing motion+ Show more

Learning Objectives

• Understand the concept of mechanical energy and its conservation in ideal systems.
• Describe how energy transfers occur among components in swinging pendulums and spring systems.
• Recognize observable energy losses to nonmechanical forms and reason about system efficiencies.+ Show more

Learning Objectives

• Understand the key factors that influence population size and distribution.
• Differentiate between types of population growth patterns, including exponential and logistic growth.
• Analyze how species interactions and environmental factors affect populations over time.

Learning Objectives

• Understand the distribution and types of natural resources on Earth, including freshwater, minerals, and groundwater.
• Explain the processes involved in hydrologic systems such as aquifer recharge, soil formation, and mineral deposit formation.
• Evaluate resource sustainability considering geological settings and processes.

Learning Objectives

• Explain the principles of mass conservation and their importance in chemical and environmental systems.
• Identify real-world applications of mass conservation in reaction stoichiometry and environmental monitoring.
• Describe how mass budgets and balances are used in closed or near-closed systems.+ Show more

Learning Objectives

• Explain the different types of species interactions such as competition, predation, mutualism, and parasitism.
• Illustrate how niche partitioning reduces competition among species in an ecosystem.
• Describe the role of keystone species in shaping community composition.+ Show more

Learning Objectives

• Understand how energy flows and transforms within mechanical and industrial systems.
• Interpret energy flow diagrams and Sankey diagrams to quantify inputs, useful outputs, and waste heat.
• Explain the conservation of energy principles in various energy systems such as oil sands extraction, heating plants, and hydroelectric infrastructure.+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow influence ecosystems.
• Identify factors such as frequency, intensity, and spatial scale that determine disturbance outcomes.
• Explain how some species adapt to disturbances and rebound quickly while others are affected adversely.+ Show more

Learning Objectives

• Understand the concept of a food web and its ecological significance.
• Identify the different types of organisms involved in a food web.
• Analyze how interconnected relationships affect ecosystem stability.+ Show more

Learning Objectives

• Understand various conservation strategies used to protect ecosystems.
• Identify methods for habitat restoration, species management, and policy implementation.
• Explain how food webs, population dynamics, and abiotic factors influence conservation efforts.+ Show more

Learning Objectives

• Understand the fundamental concepts of populations, including size, growth, and distribution.
• Identify and explain the impact of demographic factors such as births, deaths, immigration, and emigration.
• Describe key metrics used to measure population characteristics like density and distribution patterns.+ 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 what habitat fragmentation is and how it affects ecosystems.
• Identify the effects of habitat fragmentation on species survival and biodiversity.
• Analyze landscape connectivity and its role in ecosystem resilience.+ Show more

Learning Objectives

• Define carrying capacity and explain its significance in ecosystems.
• Identify limiting factors that regulate population growth.
• Describe how populations adjust when exceeding the environment's carrying capacity.+ Show more

Learning Objectives

• Describe different types of population interactions such as competition, predation, and mutualism.
• Explain how populations compete for resources and how this affects community composition.
• Identify mechanisms like niche partitioning, temporal separation, and habitat differentiation that enable species to coexist.+ Show more

Learning Objectives

• Identify the main parts of a cell and their functions.
• Explain the role of the cell membrane, nucleus, and mitochondria.
• Describe how cells differ based on their functions in plants and animals.+ Show more

Learning Objectives

• Describe the organization and components of the cell membrane.
• Explain the functions of lipids, proteins, and carbohydrates in the membrane.
• Understand how the membrane maintains selective permeability.+ Show more

Learning Objectives

• Understand how cells communicate through chemical and electrical signals.
• Identify the role of receptor proteins, gap junctions, and plasmodesmata in cell signaling.
• Explain the processes of signal amplification and feedback regulation in cell communication.+ Show more

Learning Objectives

• Describe the primary functions of the four tissue types: epithelial, connective, muscle, and nervous tissue.
• Identify examples and locations of each tissue type in the human body.
• Explain how tissue types work together within organs to perform specific functions.+ Show more

Learning Objectives

• Explain the processes involved in the rock cycle and how they are interconnected.
• Identify the roles of tectonics, magmatism, weathering, and erosion in the formation and transformation of rocks.
• Describe how surface and deep Earth processes contribute to the recycling of crustal materials.+ Show more

Learning Objectives

• Understand the processes involved in physical, chemical, and biological weathering of rocks.
• Identify factors that influence the rate and effects of weathering on landforms.
• Describe how weathering contributes to soil formation and landscape development.+ Show more

Learning Objectives

• Understand the concept of chemical properties and how they are identified.
• Recognize different observable outcomes that indicate chemical reactions.
• Describe how properties like flammability, reactivity, oxidation, and pH influence chemical behavior.+ Show more

Learning Objectives

• Describe how magma composition and eruption style influence volcanic landforms.
• Identify different types of volcanic structures and their formation processes.
• Explain the roles of tectonic settings such as subduction zones and hotspots in volcanic activity.+ Show more

Learning Objectives

• Describe how energy is involved in chemical reactions.
• Differentiate between exothermic and endothermic reactions based on energy changes.
• Explain the link between energy transfer and bond formation or breaking in chemical processes.+ Show more

Learning Objectives

• Describe the key steps involved in the formation of sedimentary rocks.
• Identify different types of weathering and deposition environments.
• Explain how sediments are transported, sorted, and turned into rock through lithification.+ Show more

Learning Objectives

• Understand the classification of rocks into igneous, sedimentary, and metamorphic types.
• Identify key features such as mineral content, grain size, and structures that distinguish rock types.
• Explain the processes that lead to the formation of each rock type.+ Show more

Learning Objectives

• Understand basic population growth models, including exponential and logistic growth.
• Identify and distinguish between limiting factors affecting populations.
• Differentiate between density-dependent and density-independent influences on populations.+ Show more

Learning Objectives

• Understand the ecological consequences of invasive species introductions.
• Recognize pathways and factors facilitating the establishment of invasive species.
• Evaluate the long-term ecological and economic effects of non-native species.+ Show more

Learning Objectives

• Understand the key principles of ecological restoration, including reference conditions and species selection.
• Analyze different approaches to restoration, such as active versus passive strategies, and their implications.
• Evaluate long-term monitoring, habitat connectivity, and prioritization criteria in restoration projects.+ Show more

Learning Objectives

• Understand human impacts on ecosystems such as habitat alteration, pollution, resource extraction, and non-native species introduction.
• Explain the consequences of human activities on species composition and ecosystem functions.
• Identify principles of environmental stewardship and explore strategies for balancing societal needs with ecological health.

Learning Objectives

• Understand the types of advanced construction materials such as engineered timber, fibre-reinforced polymers, and high-performance concrete.
• Explain how microstructure and manufacturing techniques enhance strength, stiffness, and durability of materials.
• Analyze the trade-offs among cost, fabrication complexity, and performance in using new materials.+ Show more

Learning Objectives

• Understand how energy moves through trophic levels in ecosystems.
• Explain the concepts of energy efficiency, biomass pyramids, and energy transfer limitations.
• Describe how solar energy is captured by primary producers and lost through respiration and heat.+ Show more

Learning Objectives

• Describe the structure and stratification of freshwater systems such as ponds and lakes.
• Explain how abiotic factors like oxygen gradients and light penetration influence community composition and vertical zonation.
• Analyze seasonal processes such as thermal turnover and their impacts on dissolved oxygen, nutrient mixing, and habitat suitability.+ Show more

Learning Objectives

• Define the primary structural elements involved in load transfer within structures.
• Distinguish between dead loads and live loads and explain how they affect structures.
• Identify the types of stress—tension, compression, shear—in structural members.+ Show more

Learning Objectives

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

Learning Objectives

• Understand the steps involved in the design process from defining requirements to evaluating alternatives.
• Learn how to specify performance objectives and constraints for structural designs.
• Apply decision matrices and sketches to compare different design options.+ Show more

Learning Objectives

• Understand the components and functions of ecosystems, including biotic and abiotic elements.
• Identify trophic categories such as producers, consumers, and decomposers, and explain their roles in energy flow.
• Recognize simple food chains in pond and forest environments and understand how matter cycles through these systems.+ Show more

Learning Objectives

• Understand the concept of biodiversity and how it is measured using various indices.
• Interpret the significance of high and low biodiversity values across different habitats.
• Recognize the relationships between habitat heterogeneity, niche diversity, and species turnover.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the formula Q=mcΔT
• Identify and explain units such as joules and watts used in heat calculations
• Apply basic heat calculation skills to practical scenarios involving specific heat capacity+ Show more

Learning Objectives

• Identify the three primary modes of thermal energy transfer: conduction, convection, and radiation.
• Describe the molecular mechanisms underlying each mode of energy transfer.
• Compare the typical media and rates at which conduction, convection, and radiation transfer heat.+ Show more

Learning Objectives

• Understand the properties of reflective and emissive surfaces in heat management.
• Analyze how surface treatments like coatings and colours influence solar radiation absorption and reflection.
• Evaluate the effectiveness of low-emissivity glazing and reflective roofs in different seasonal and diurnal contexts.+ Show more

Learning Objectives

• Understand the principles of calibration and sensor response in temperature measurement
• Identify sources of measurement uncertainty and how to interpret data within error bounds
• Compare the performance characteristics of thermocouples, resistance temperature detectors, and infrared sensors+ Show more