Grade 7 Worksheets

Learning Objectives

• Explain how exponential and logistic growth models describe population changes over time
• Identify limiting factors (food, predation, disease, and abiotic stress) and predict their effects on populations
• Distinguish density-dependent from density-independent influences on population size+ Show more

Learning Objectives

• Explain how species richness, evenness, and diversity indices summarize biodiversity in a community.
• Interpret higher vs. lower diversity values across different habitats and predict impacts on stability and resilience.
• Describe how habitat heterogeneity relates to niche diversity and species turnover, and why single metrics can miss complexity.

Learning Objectives

• Explain how Japan’s island geography influenced economic development during the medieval period.
• Identify ways Japan borrowed ideas and techniques from China and Korea (art, religion, and politics).
• Describe how Japan adapted imported influences to fit local needs and traditions.+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Explain how unbalanced forces change an object's motion, including changes in speed and direction.
• Use free-body diagrams to identify forces and determine the direction of the net force.+ Show more

Learning Objectives

• Learn how to organize observations into data tables.
• Identify trends and relationships from graphical displays.
• Understand the importance of scale and trend lines in graphs.+ Show more

Learning Objectives

• Understand the concept of thermal conductivity in different materials.
• Identify key factors affecting heat transfer in metals, ceramics, polymers, and composites.
• Explain how free electrons and lattice vibrations contribute to thermal conduction.+ Show more

Learning Objectives

• Explain how filtration separates mixtures based on particle size and pore structure
• Compare filtration with sedimentation and centrifugation in terms of what each method can remove
• Identify limitations of filtration for dissolved solutes and very small colloids+ Show more

Learning Objectives

• Identify how building orientation changes solar heat entering a home.
• Explain what passive solar gains are and how they affect seasonal heating needs.
• Describe trade-offs between comfort and energy demand in cold climates.

Learning Objectives

• Explain how natural climate records (ice cores, sediment layers, and tree rings) reveal past temperature and precipitation.
• Describe how modern instruments confirm and refine recent climate trends.
• Identify major climate drivers that can change Earth’s energy balance and circulation over time.

Learning Objectives

• Explain how advances in transportation and communication increased global connectivity.
• Describe how faster information and movement supported international trade and economic interdependence.
• Analyze how improved travel and media promoted cultural exchange across borders.+ Show more

Learning Objectives

• Explain how energy transfer causes phase changes between solid, liquid, and gas states.
• Describe how particle motion and particle spacing change during heating and cooling.
• Differentiate melting, freezing, vaporization, condensation, sublimation, and deposition based on state changes.

Learning Objectives

• Explain how fitness relates to survival and reproduction in a specific environment
• Describe how environmental changes can change which traits are favored by natural selection
• Connect fitness to heritable variation and how populations can respond over time

Learning Objectives

• Understand how heat transfer depends on mass, temperature change, and specific heat capacity.
• Apply the equation Q = mcΔT to calculate thermal energy changes in common substances.
• Identify units of energy and power such as joules and watts.+ Show more

Learning Objectives

• Identify key values connected to Independence Day, including liberty, equality, and justice.
• Explain how these values can guide fair decisions and respectful behavior today.
• Connect historical ideals to modern challenges and personal experiences.+ Show more

Learning Objectives

• Understand and interpret proportional relationships using visual tools like tables and double number lines.
• Apply proportional reasoning to solve real-world problems involving ratios, rates, and percentages.
• Analyze and verify the consistency of solutions derived from proportional models.+ Show more

Learning Objectives

• Distinguish mutualism, commensalism, and parasitism by the effects on both species.
• Explain how symbiosis types can influence population dynamics and community structure.
• Use examples to describe ecological consequences such as resource distribution and coevolution.

Learning Objectives

• Understand how sedimentary layers and fossils record Earth's history.
• Describe processes like lithification, metamorphism, and magmatism.
• Explain relative and absolute dating techniques, including index fossils and radiometric decay.+ Show more

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous and analogous structures among species.
• Analyze morphological differences and similarities to infer phylogenetic relationships.+ Show more

Learning Objectives

• Explain how plate tectonics, weathering, and sedimentation can create uneven distributions of Earth resources over time
• Connect past environmental conditions and biological activity to where fossils and fossil fuels form
• Describe how groundwater systems form and why access to aquifers varies by location+ Show more

Learning Objectives

• Identify different types of natural resources
• Understand how geologic processes affect resource distribution
• Connect Earth history with resource locations+ Show more

Learning Objectives

• Define calorimetry and explain its purpose
• Identify components involved in calorimetric experiments
• Describe how temperature change relates to energy transfer+ Show more

Learning Objectives

• Identify independent, dependent, and control variables in a controlled science investigation.
• Apply strategies such as randomization and replication to reduce confounding effects.
• Explain how documentation and constraints affect the reliability of experimental results.

Learning Objectives

• Explain how reproductive isolation and geographic separation can lead to speciation.
• Describe how polyploidy and adaptive radiation can increase biodiversity.
• Use examples to connect biogeography and diversification rates to how new species form.

Learning Objectives

• Understand the definition of a population and how its size can change over time.
• Identify factors that influence population density and distribution patterns.
• Explain how reproductive capacity and survival rates affect population growth.+ Show more

Learning Objectives

• Understand what population dynamics are and the factors influencing them
• Identify different processes that change population size
• Analyze the role of resources and ecosystems in population changes

Learning Objectives

• Describe how matter is recycled within organisms during digestion, biosynthesis, and respiration.
• Explain the flow of carbon and nitrogen through food chains and their transformation into waste products.
• Identify key biochemical pathways such as macromolecule synthesis and decomposition that facilitate matter cycling.+ Show more

Learning Objectives

• Explain how human population growth influences demand for water, energy, and land resources.
• Analyze the environmental consequences of increased consumption patterns on ecosystems and biodiversity.
• Evaluate regional examples of how population and consumption affect resource cycles and sustainability.+ Show more

Learning Objectives

• Compare temperature measurement principles and instrument characteristics across liquid-in-glass, bimetallic, and digital thermometers.
• Use the Celsius scale conventions and understand the need for fixed points and calibration for reliable measurements.
• Identify sources of uncertainty and environmental influences (radiation and air flow) that affect recorded temperatures.

Learning Objectives

• Identify common structural failure modes and describe what triggers each one.
• Explain limit states design, including safety factors, in reducing risk.
• Relate failure mechanisms to geometry, materials, and loading conditions.

Learning Objectives

• Explain how voting rights connect to civic engagement and fairness in government.
• Describe key ideas from the women’s suffrage movement and why representation matters.
• Identify steps and components of the voting process (registration, polling place, ballots).

Learning Objectives

• Understand the basic principles of chromatography, including the roles of stationary and mobile phases.
• Learn about the concepts of differential partitioning and molecular polarity in chromatography.
• Identify different types of chromatography such as paper and thin-layer chromatography.+ Show more

Learning Objectives

• Define and distinguish between balanced and unbalanced forces
• Identify real-life scenarios of balanced and unbalanced forces
• Explain how forces affect the motion of objects

Learning Objectives

• Understand the purpose of headings and subheadings in texts.
• Identify text features such as diagrams, charts, and captions.
• Explain how text structures like compare-and-contrast or problem-and-solution aid comprehension.+ Show more

Learning Objectives

• Understand the principles of structural optimization that improve material efficiency and cost-effectiveness.
• Identify different optimization methods such as topology and form optimization.
• Analyze how performance-based criteria and life-cycle assessments influence design choices.+ Show more

Learning Objectives

• Explain how family structures can differ across cultures and communities.
• Describe common roles and responsibilities within different family living arrangements.
• Use respectful language when discussing family traditions and identities.

Learning Objectives

• Explain how boiling point differences and vapour pressure enable separation of miscible liquids by simple distillation.
• Describe how condensation converts vapour back into liquid and how fractionation improves purity.
• Identify key limitations of distillation, including close-boiling mixtures and azeotropes.+ Show more

Learning Objectives

• Explain conservation of mass in chemical reactions using particle-level ideas.
• Describe how closed systems affect mass before and after a reaction.
• Use evidence from balanced equations and atom rearrangement to justify constant total mass.

Learning Objectives

• Identify patterns of local trade and exchange
• Understand the importance of markets and trade routes
• Analyze how economic interdependence strengthens communities

Learning Objectives

• Understand the importance of safety standards in technological design and practice.
• Identify key safety codes and regulations related to building and electrical safety.
• Explain the rationale behind safety margins, inspection protocols, and documentation.+ Show more

Learning Objectives

• Identify and describe Earth's main internal layers: crust, mantle, outer core, and inner core.
• Understand how seismic waves provide evidence for Earth's internal composition.
• Explain mantle convection and its role in plate movement.+ Show more

Learning Objectives

• Describe the different types of phase changes and what causes them.
• Explain how energy transfer affects particle movement during phase changes.
• Identify the characteristics of melting, freezing, vaporization, condensation, sublimation, and deposition.+ Show more

Learning Objectives

• Explain how common ocean pollutants (plastic, oil, and chemical runoff) enter marine ecosystems.
• Describe how pollution harms sea creatures, habitats, and human communities.
• Identify ways individuals and communities can reduce ocean pollution through responsible actions and advocacy.

Learning Objectives

• Interpret distance–time and velocity–time graphs to describe motion patterns such as uniform motion, speeding up, slowing down, and rest intervals.
• Use the slope of a velocity–time or distance–time graph to explain how speed changes over time.
• Connect the shape of a velocity–time graph to displacement in a conceptual way by comparing areas under curves.

Learning Objectives

• Differentiate temperature from internal energy using particle motion and particle interactions.
• Explain that thermal energy transfer occurs from higher internal energy to lower internal energy.
• Use conservation of energy ideas to describe heat exchange between objects.+ Show more

Learning Objectives

• Define and identify physical change in substances.
• Differentiate between reversible and irreversible physical changes.
• Describe common examples of physical changes such as melting, freezing, and dissolving.+ Show more

Learning Objectives

• Describe different forms of systems modeling such as diagrams, scale models, and quantitative representations.
• Explain the purpose and limitations of using models to predict system behavior and interpret outputs.
• Identify exemplar representations like free-body diagrams, circuit schematics, and block diagrams for control systems.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how calibration, traceable reference points, and uncertainty affect temperature measurements.
• Identify common sources of temperature error, including sensor response time, spatial placement, shielding, and thermal contact effects.
• Compare thermocouples, resistance temperature detectors (RTDs), and infrared (IR) sensors for environmental temperature monitoring.