Grade 7 Worksheets

Learning Objectives

• Understand how disturbances influence ecosystems and habitats.
• Identify different types of disturbances and their effects on species.
• Analyze cause-and-effect relationships related to environmental disturbances.+ Show more

Learning Objectives

• Understand how abiotic factors like temperature, moisture, light, soil nutrients, and pH affect species distribution and population.
• Identify how seasonal and daily fluctuations create stress or opportunities for populations.
• Explain the interaction between abiotic conditions and biotic pressures in determining population resilience and carrying capacity.+ Show more

Learning Objectives

• Understand how simple systems and mechanisms transfer motion and force.
• Identify different types of mechanisms like gears, pulleys, and levers.
• Explain how connecting components in a system clarifies energy transfer and performance.+ Show more

Learning Objectives

• Understand how test results inform design modifications.
• Identify specific weaknesses in performance data.
• Connect evidence from data to targeted design changes.+ Show more

Learning Objectives

• Understand how structural, behavioral, and functional adaptations support survival.
• Identify examples of adaptations that facilitate life processes like protection and water regulation.
• Explain trade-offs involved in functional traits and their impact on survival.+ Show more

Learning Objectives

• Explain the process of decomposition and how nutrients are recycled in ecosystems.
• Identify roles of detritivores, fungi, bacteria, and abiotic factors in decomposition.
• Understand the transformations of carbon and nitrogen during decomposition.+ Show more

Learning Objectives

• Summarize human impacts on ecosystems, including habitat alteration, pollution, resource extraction, and introduction of non-native species.
• Describe consequences of human activities for species and ecosystem functions.
• Explain principles of stewardship such as mitigation, habitat protection, restoration, and monitoring.+ Show more

Learning Objectives

• Understand the concept of trophic levels in an ecological food chain.
• Explain how energy transfer efficiency affects ecosystem productivity.
• Identify factors influencing trophic efficiency in different environments.+ Show more

Learning Objectives

• Explain how magma forms through different geological processes such as decompression, heat transfer, and volatile addition.
• Describe the relationship between cooling rates and the texture/mineral composition of igneous rocks.
• Identify the roles of fractional crystallization and magma mixing in producing diverse igneous rocks.+ Show more

Learning Objectives

• Understand the concept of ecosystem resilience and factors influencing it.
• Identify patterns of population change after disturbances.
• Analyze how community relationships reorganize in response to environmental changes.+ Show more

Learning Objectives

• Understand what constitutes a physical change and its signs.
• Identify examples of physical changes in real-world contexts.
• Recognize indicators that a change is physical rather than chemical.+ Show more

Learning Objectives

• Understand how observable physical and chemical properties influence material selection.
• Identify properties such as corrosion resistance, hardness, melting point, solubility, and reactivity.
• Learn how properties like density and strength guide structural decisions.+ Show more

Learning Objectives

• Understand the concept of biodiversity indices such as species richness and evenness.
• Interpret diversity values across different habitats and their ecological implications.
• Recognize relationships among habitat heterogeneity, niche diversity, and species turnover.+ Show more

Learning Objectives

• Describe the structure of freshwater systems, including stratification, oxygen gradients, and light penetration.
• Explain how abiotic gradients influence community composition and vertical zonation in lakes and ponds.
• Discuss seasonal changes such as thermal turnover and their effects on dissolved oxygen, nutrient mixing, and habitat conditions.+ Show more

Learning Objectives

• Understand hazards and risks associated with laboratory and field activities.
• Learn to interpret safety data sheets and hazard classifications.
• Identify appropriate mitigation strategies and controls for safety.+ Show more

Learning Objectives

• Understand the concept of ecological succession and its stages.
• Differentiate between primary and secondary succession.
• Identify key drivers that influence succession such as soil development and species dispersal.+ Show more

Learning Objectives

• Explain how energy is transferred through trophic levels in an ecosystem.
• Describe the concept of trophic efficiency and biomass pyramids.
• Analyze energy losses during transfer between levels due to respiration and heat.+ Show more

Learning Objectives

• Understand how walls, roofs, windows, and foundations contribute to thermal performance.
• Identify methods for measuring envelope performance and retrofit strategies.
• Explain the concepts of interfaces, thermal bridging, and air infiltration in building envelopes.+ Show more

Learning Objectives

• Understand the concepts of instrumentation calibration and measurement uncertainty in temperature sensing.
• Identify different types of temperature sensors and their performance characteristics.
• Interpret temperature measurements within stated uncertainties and recognize common error sources.+ Show more

Learning Objectives

• Explain the difference between internal energy and temperature.
• Identify common sources of thermal energy in natural and built environments.
• Describe the direction of heat flow from higher to lower internal energy.+ Show more

Learning Objectives

• Understand the different types of mixtures: solutions, colloids, and suspensions.
• Identify examples of each mixture type based on particle size and behaviour.
• Explain how mixture properties influence separation methods.+ Show more

Learning Objectives

• Define and explain various physical properties such as mass, volume, density, melting and boiling points.
• Understand how physical properties relate to molecular structure and intermolecular forces.
• Identify how physical descriptors are used to classify and select materials for specific applications.+ Show more

Learning Objectives

• Understand the principle of simple distillation and its applications in separating liquids.
• Identify factors affecting the efficiency of distillation, such as boiling point differences.
• Explain the limitations of simple distillation with close-boiling mixtures and azeotropes.+ Show more

Learning Objectives

• Understand systematic data recording methods including tabular formats and metadata standards.
• Identify appropriate units, consistent headings, and timestamp conventions in time-series data.
• Recognize the importance of observational logs, sampling frame documentation, and replication records.+ 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

• Identify observable signs of chemical change such as gas formation, color change, temperature change, precipitate formation, and irreversible transformation.
• Understand that multiple indicators together strengthen evidence of a chemical change.
• Describe measurement methods that confirm chemical changes occur.

Learning Objectives

• Understand the fundamentals of engineering design, including problem definition, criteria, and constraints.
• Learn how to develop specifications, use trade-off matrices, and evaluate feasibility in design projects.
• Explore how iterative refinement enhances problem-solving in mechanical systems and environmental prototypes.+ Show more

Learning Objectives

• Understand the key chemical properties used to describe substances.
• Identify how substances react under different chemical conditions.
• Analyze observable outcomes to infer chemical behaviors.+ Show more

Learning Objectives

• Understand key concepts of optimization in design processes.
• Identify performance metrics and manage constraints effectively.
• Analyze trade-offs among strength, cost, durability, and sustainability.+ Show more

Learning Objectives

• Understand the concept of forces in equilibrium and how they balance to produce constant velocity or rest.
• Identify the differences between static and dynamic equilibrium in various scenarios.
• Apply qualitative and simple quantitative analyses to predict outcomes of objects at rest or moving uniformly.+ Show more

Learning Objectives

• Explain how convection transports heat through fluids and the role of density differences.
• Identify natural and forced convection examples in environmental and engineered systems.
• Characterize boundary layers, buoyancy forces, and flow patterns in convection processes.+ Show more

Learning Objectives

• Understand the concept of radiant transfer and how it conveys energy through electromagnetic waves.
• Identify factors like solar radiation intensity, surface absorptivity, and emissivity that influence radiative heating.
• Analyze how seasonal changes and surface types affect radiative balances in different regions.+ Show more

Learning Objectives

• Understand how the kinetic motion of particles relates to heat and temperature.
• Distinguish between heat transfer methods: conduction, convection, radiation.
• Explain how environmental examples like snowy mountains and prairie warming illustrate thermal phenomena.+ Show more

Learning Objectives

• Understand the principles of momentum conservation during collisions.
• Differentiate between elastic and inelastic collisions.
• Calculate momentum and post-collision velocities using numerical examples.+ Show more

Learning Objectives

• Understand the intrinsic properties that affect material thermal behavior.
• Compare different construction materials based on thermal conductivity, heat capacity, and density.
• Analyze how porosity, moisture, and layered assemblies influence thermal conductivity.+ Show more

Learning Objectives

• Understand the mechanisms of heat transfer including conduction, convection, radiation, sound, and electric current.
• Identify examples of thermal energy transfer in everyday life.
• Describe measurable evidence and differences in heat transfer modes.+ Show more

Learning Objectives

• Understand the principles of mass conservation in chemical and physical processes.
• Identify factors affecting accuracy in mass measurements.
• Explain how system boundaries influence mass observations.+ Show more

Learning Objectives

• Understand the agents responsible for erosion and sediment transport such as water, glaciers, wind, and gravity.
• Identify distinctive sedimentary signatures produced by different agents of erosion.
• Explain how transport distance and energy influence grain size and sediment sorting.+ Show more

Learning Objectives

• Understand different types of phase changes and what drives them.
• Identify the effects of temperature and pressure on the states of matter.
• Describe energy transfer involved in phase transitions.+ Show more

Learning Objectives

• Understand the concept of design criteria and constraints in problem-solving.
• Identify measurable and observable criteria for evaluating solutions.
• Analyze trade-offs when meeting multiple design requirements.+ Show more

Learning Objectives

• Understand how matter cycles through ecosystems via different nutrient cycles.
• Identify the processes involved in carbon, nitrogen, and phosphorus cycles.
• Explain how these cycles influence ecosystem productivity and growth.+ Show more

Learning Objectives

• Understand how energy and matter move through ecosystems via food webs.
• Identify the roles of producers, consumers, and decomposers in food chains.
• Explain how energy decreases at each trophic level due to losses.+ Show more

Learning Objectives

• Understand how environmental changes affect ecosystems and organisms.
• Identify different types of environmental shifts such as temperature, water quality, and habitat alterations.
• Analyze the effects of key species fluctuations on ecosystem dynamics.+ Show more

Learning Objectives

• Understand how models translate observations into representations for predictions.
• Identify different types of models: physical, diagrammatic, and computational.
• Explain how lunar phase diagrams link Earth, Moon, and Sun positions to observable phenomena.+ Show more

Learning Objectives

• Understand the causes and effects of earthquakes related to fault movement.
• Identify different fault types and their seismic signatures.
• Explain how seismic waves travel through the Earth and their characteristics.+ Show more

Learning Objectives

• Understand the purpose of model evaluation in scientific predictions.
• Identify factors that can cause differences between predicted outcomes and evidence.
• Describe how computational simulations help test assumptions in models.+ Show more

Learning Objectives

• Understand how vibrating objects produce sound waves in a medium.
• Identify how frequency affects pitch and amplitude affects loudness.
• Explain the transmission of sound in different media and the effect of wave properties on perception.+ Show more

Learning Objectives

• Understand the different methods of heat transfer: conduction, convection, and radiation.
• Identify real-world examples of heat transfer processes.
• Explain how temperature differences influence the direction of heat flow.+ Show more