Grade 7 Worksheets

Learning Objectives

• Understand how temperature affects plant and animal survival
• Identify the effects of temperature variations on ecosystems
• Analyze the interactions between abiotic and biotic factors+ Show more

Learning Objectives

• Understand the basic concepts of exponential and logistic population growth.
• Identify differences between density-dependent and density-independent factors.
• Interpret how environmental factors influence population changes.

Learning Objectives

• Explain the concept of trophic efficiency
• Describe how energy is transferred through food chains
• Identify factors that cause energy loss in ecosystems+ Show more

Learning Objectives

• Understand basic concepts of ecosystems and biodiversity
• Identify various conservation strategies and their purposes
• Recognize the importance of habitat protection and restoration+ Show more

Learning Objectives

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

Learning Objectives

• Define habitat fragmentation and explain its causes.
• Describe how fragmentation affects ecosystems and species.
• Identify strategies to mitigate negative effects of habitat fragmentation.

Learning Objectives

• Understand the concept of load paths in buildings and bridges
• Identify primary vs. secondary load transfer routes
• Learn how openings, corners, and irregular geometries affect load redistribution+ Show more

Learning Objectives

• Describe the interactions between organ systems in multicellular animals, including circulation, respiration, digestion, and nervous systems.
• Explain system-level dependencies and feedback mechanisms that support gas exchange, nutrient distribution, and homeostasis.
• Compare human and plant vascular systems to understand similarities and differences in transport interactions.+ Show more

Learning Objectives

• Identify different phases within a mixture of oil sands and bitumen.
• Understand physical separation techniques used in extracting bitumen.
• Distinguish between physical and chemical processes in mixture separation.+ Show more

Learning Objectives

• Explain the concept of saturation and supersaturation.
• Identify real-life examples of saturation and crystallization.
• Understand the conditions that lead to solute crystallization.+ Show more

Learning Objectives

• Understand the principle of mass conservation in closed systems
• Recognize practical applications of mass conservation in environmental contexts
• Interpret data related to mass balances in chemical and physical processes

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

• Describe the functions of the circulatory, respiratory, digestive, and nervous systems in multicellular animals.
• Explain how organ systems cooperate to support gas exchange, nutrient distribution, and homeostasis.
• Identify examples of system-level dependencies and feedback mechanisms in animal and plant systems.+ Show more

Learning Objectives

• Understand the differences in thermal conductivity among metals, ceramics, polymers, and composites.
• Explain how free electrons and lattice vibrations contribute to heat conduction.
• Analyze how factors like density, porosity, and moisture influence a material's effective thermal conductivity.+ Show more

Learning Objectives

• Understand how the circulatory and respiratory systems work together to exchange gases.
• Identify the roles of blood and lungs in gas exchange.
• Describe how oxygen moves from the lungs to tissues via blood.+ Show more

Learning Objectives

• Understand how cellular structures and transport processes work together to maintain homeostasis.
• Identify key mechanisms such as transport proteins, membrane pumps, and hormone signaling.
• Explain how various organ systems coordinate to regulate nutrient levels, ions, and water balance.+ Show more

Learning Objectives

• Understand the structure and function of mitochondria in energy production.
• Describe the process of cellular respiration and ATP synthesis.
• Identify how mitochondrial variations reflect cellular energy needs.+ Show more

Learning Objectives

• Understand the mechanisms of active transport and how it differs from passive diffusion.
• Identify the roles of cellular energy and membrane proteins in transporting molecules.
• Explain the function of the sodium-potassium pump in maintaining cell stability.+ Show more

Learning Objectives

• Understand the structural differences among specialized cells and their roles.
• Describe how morphological differences enable cells to perform specific functions.
• Identify examples of cell specialization in tissues and organs.+ Show more

Learning Objectives

• Understand the role of the nucleus in a cell's activities.
• Identify components of the nucleus such as chromosomes, nuclear envelope, and nuclear pores.
• Describe how the nucleus controls cell growth, development, and protein synthesis.+ Show more

Learning Objectives

• Explain how receptor proteins and signaling molecules enable cells to communicate.
• Describe the function of gap junctions and plasmodesmata in cell communication.
• Identify different mechanisms of signal regulation, including feedback and amplification.+ Show more

Learning Objectives

• Describe passive and active mechanisms of membrane transport.
• Explain how diffusion and osmosis differ.
• Identify the role of membrane proteins in substance passage.+ Show more

Learning Objectives

• Identify different tissue types in the human body.
• Describe the functions of epithelial, muscular, connective, and nervous tissues.
• Understand how tissues work together to form organs and systems.+ Show more

Learning Objectives

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

Learning Objectives

• Identify the main parts of a cell and their functions.
• Describe the diversity in cell shapes and components based on their roles.
• Understand the structural differences between plant and animal cells.+ Show more

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without direct contact.
• Describe how solar intensity, absorptivity, and emissivity affect net radiative heating or cooling.
• Compare how different surfaces (e.g., roofs, vegetation, and snow) influence daytime warming and nocturnal cooling.

Learning Objectives

• Understand the importance of organized data presentation in scientific research.
• Identify different types of data structures such as tables and logs.
• Learn proper formatting standards including units, column headings, and timestamps.+ Show more

Learning Objectives

• Describe the process of the rock cycle
• Identify different types of rocks: igneous, sedimentary, and metamorphic
• Explain how Earth's surface processes contribute to rock transformation+ Show more

Learning Objectives

• Explain the significance of different connection types in structural systems.
• Identify how joints influence load transfer and redundancy in bridges and columns.
• Describe shear, bearing, and slip at connections and their effects on stability.+ Show more

Learning Objectives

• Use quantitative relationships (mass, temperature change, and specific heat) to calculate heat energy transfers.
• Convert between Joules and kilojoules and interpret the meaning of energy values in thermal processes.
• Use heat-flow ideas and energy budgets to compare simple heating, cooling, melting, and warming scenarios.

Learning Objectives

• Understand the concept of temperature gradients as abiotic factors
• Learn how temperature affects organism distribution and ecosystem structure
• Identify other abiotic drivers such as light, soil, moisture, and pH+ Show more

Learning Objectives

• Understand how to define design problems with clear criteria and constraints.
• Learn to translate societal and environmental needs into measurable targets.
• Identify real-world examples of problem specifications in science and engineering.+ Show more

Learning Objectives

• Describe the process of ecological succession and distinguish between primary and secondary succession.
• Identify the characteristic stages of succession in ecosystems such as abandoned fields and disturbed shorelines.
• Explain the drivers influencing succession, including soil development, seed dispersal, competition, and facilitation.+ Show more

Learning Objectives

• Explain equilibrium in terms of net force being zero and how it affects motion
• Distinguish static equilibrium from dynamic equilibrium using real-world examples
• Interpret and describe force diagrams qualitatively (direction and relative size) to identify balanced forces+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow affect ecosystems.
• Explain the concepts of disturbance frequency, intensity, and spatial scale in ecological processes.
• Identify species adaptations related to disturbance regimes and their effects on population dynamics.+ Show more

Learning Objectives

• Understand the principles of simple distillation and its applications.
• Identify the factors affecting vapour pressure and boiling point differences in distillation.
• Explain the limitations of simple distillation with close-boiling mixtures and azeotropes.+ Show more

Learning Objectives

• Understand the factors affecting solubility such as temperature, pressure, and solvent polarity.
• Interpret and analyze solubility curves and concepts of saturation and supersaturation.
• Explain how solubility concepts relate to solution processes like recrystallization, separation, and concentration calculations.+ Show more

Learning Objectives

• Understand the processes of evaporation and controlled crystallization used to recover solutes.
• Identify factors influencing crystal growth, size, and purity, such as evaporation rate and impurities.
• Describe examples like salt production and sugar crystallization.+ Show more

Learning Objectives

• Understand the differences in atomic composition between elements and compounds.
• Identify distinctive features of elements and compounds based on bonding and properties.
• Explain how chemical combinations alter properties compared to the constituent elements.+ Show more

Learning Objectives

• Describe the key chemical properties that influence material behavior.
• Identify indicators of chemical reactions such as gas evolution, color change, and precipitate formation.
• Contrast the chemical stability of noble metals with reactive non-metals.+ Show more

Learning Objectives

• Identify the characteristics that define pure substances and mixtures.
• Differentiate between elements, compounds, and mixtures using examples.
• Understand the criteria for classifying substances as pure or impure.+ Show more

Learning Objectives

• Understand the classification of mixtures into solutions, colloids, and suspensions based on uniformity and particle size.
• Identify examples of each mixture type such as salt water, milk, and muddy water.
• Explain the concepts of homogeneous and heterogeneous mixtures and their observable characteristics.+ Show more

Learning Objectives

• Understand the principles of density differences used in separation techniques.
• Identify how buoyant force, sedimentation, and centrifugal force are exploited in separation methods.
• Recognize examples like oil-water separation and blood fractionation that utilize density-driven processes.+ Show more

Learning Objectives

• Understand the key analytical indicators used to assess the purity of substances.
• Identify various methods for detecting contamination and impurities.
• Compare and contrast techniques such as melting point ranges, conductivity differences, refractive index, and gravimetric residue.+ Show more

Learning Objectives

• Define and understand the physical properties used as diagnostic criteria.
• Link macroscopic measurements to molecular structure and intermolecular forces.
• Explain how density, phase-change temperatures, and conductivity differentiate substances.+ Show more

Learning Objectives

• Understand the principles of filtration and sedimentation in separating mixtures.
• Identify different pore sizes and their applications in filtration techniques.
• Describe the flow behaviour through porous media and factors affecting it.+ Show more

Learning Objectives

• Understand the principles of chromatographic separation, including partitioning, stationary and mobile phases.
• Identify the differences between paper and thin-layer chromatography with practical examples.
• Interpret retention factors, resolution, and limitations of chromatographic methods in purification.+ Show more

Learning Objectives

• Define primary structural elements and understand load transfer mechanisms.
• Distinguish between dead and live loads and their effects on structures.
• Identify tension, compression, and shear within structural members.+ Show more