Grade 7 Science Worksheets

Learning Objectives

• Analyze how urban transportation affects society.
• Identify environmental consequences of transportation technology.
• Evaluate economic and social trade-offs in transportation development.+ Show more

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 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

• Understand that all matter is made up of tiny particles called atoms and molecules.
• Describe how particles behave and interact in different states of matter.
• Explain the basic principles of chemical change at the particle level.+ Show more

Learning Objectives

• Understand the processes of deposition and how they shape various landforms.
• Identify different depositional environments and their characteristics.
• Describe how sediment layers and features like cross-bedding reveal flow regimes and event history.+ Show more

Learning Objectives

• Explain how insulation reduces heat transfer by limiting conduction, convection, and radiation
• Compare insulating materials (fibreglass, foam, and reflective foils) using the idea of thermal resistance
• Describe how air leakage, thermal bridging, and continuous insulation affect overall heat loss in buildings

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

• Use physical and chemical properties to predict how substances may react.
• Identify evidence that suggests a chemical change has occurred.
• Predict likely product types and possible energy changes using reactivity trends.

Learning Objectives

• Understand the processes involved in the rock cycle, including melting, crystallization, weathering, and metamorphism.
• Identify the transformations among igneous, sedimentary, and metamorphic rocks.
• Explain how Earth's energy flow drives the rock cycle processes.+ Show more

Learning Objectives

• Understand how energy moves through mechanical and industrial systems
• Identify different forms of energy involved in systems like power plants and hydroelectric dams
• Explain the principles of energy conservation within system models+ 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

• Analyze historical earthquake data to identify patterns of frequency and magnitude.
• Interpret hazard maps and recurrence intervals to assess earthquake risk.
• Understand how probabilistic forecasting informs hazard mitigation strategies.+ Show more

Learning Objectives

• Explain how physical properties change when models are scaled to different sizes.
• Identify key concepts such as square-cube law, surface-to-volume ratio, and Reynolds number.
• Analyze examples of scaled models in structures, turbines, and animal physiology.+ Show more

Learning Objectives

• Distinguish elements from compounds using atomic composition and chemical formulas.
• Explain how bonding and fixed atomic ratios affect macroscopic properties such as conductivity and melting point.
• Use particle-level reasoning to classify matter and predict outcomes of chemical combination.

Learning Objectives

• Understand the basic principles of levers and how they provide mechanical advantage.
• Calculate the mechanical advantage of a lever using the ratio of effort arm to load arm lengths.
• Identify examples of levers and other simple machines in everyday life.+ Show more

Learning Objectives

• Identify common structural failure modes and explain how geometry, materials, and loading contribute to them
• Describe how fatigue, buckling, fracture, and connection/foundation failures can lead to progressive collapse
• Explain limit states design, safety factors, and redundancy as ways to mitigate structural risk+ Show more

Learning Objectives

• Understand the key components that make up an ecosystem.
• Identify the interactions between living organisms and their environment.
• Explain how energy flows through an ecosystem from producers to consumers.+ Show more

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks form using the key processes of cooling, weathering, compaction, cementation, and heat/pressure.
• Describe how the rock cycle connects surface and subsurface environments over geologic time.
• Use evidence from rock features (such as layers, textures, and mineral changes) to identify the likely rock type and process.

Learning Objectives

• Understand how empirical evidence supports scientific explanations.
• Learn the importance of observations and measurements in scientific investigations.
• Recognize how scientific models are refined over time with new data.+ Show more

Learning Objectives

• Explain how air masses form and how their temperature and moisture affect local weather
• Describe how fronts act as boundaries where air rises, cools, and can produce clouds and precipitation
• Use evidence such as wind shifts and temperature changes to infer what type of front may be passing

Learning Objectives

• Explain how engineering design thinking begins with problem definition and the use of criteria and constraints.
• Write measurable specifications and use trade-off matrices to compare conceptual solutions.
• Evaluate feasibility using materials, cost, and environmental factors, then justify iterative selection of a solution.+ Show more

Learning Objectives

• Understand and apply metric prefixes for measurement precision
• Calibrate balances and graduated cylinders accurately
• Estimate and propagate measurement uncertainty in calculations+ Show more

Learning Objectives

• Identify components of the carbon cycle
• Understand how carbon moves between air, organisms, and soils
• Recognize the roles of photosynthesis, respiration, and decomposition+ Show more

Learning Objectives

• Explain how control conditions and comparison conditions help reduce the effect of unrelated factors in an experiment.
• Identify control variables and describe ways to keep them the same during testing.
• Use consistent timing and calibrated measurement to improve the credibility of collected data.

Learning Objectives

• Identify how temperature impacts species distributions and survival
• Analyze the effects of temperature fluctuations on ecosystems
• Evaluate the role of abiotic factors in shaping biological processes

Learning Objectives

• Explain how freshwater reservoirs and groundwater flow are influenced by watersheds, aquifers, porosity, and permeability.
• Describe how soil forms and how geologic processes create mineral deposits.
• Differentiate renewable versus nonrenewable resources using real-world sustainability indicators.

Learning Objectives

• Organize scientific observations using clear tables with consistent headings and correct units for numerical data.
• Use appropriate metadata and timestamp conventions to preserve provenance and support later validation.
• Distinguish between categorical and numerical data and record replication information in an observational log.

Learning Objectives

• Identify physical and chemical properties used to choose materials for specific applications
• Explain how chemical stability helps prevent unwanted reactions such as rusting and acid attack
• Use material properties (density, strength, solubility, reactivity) to justify material selection decisions

Learning Objectives

• Understand the basic units used in scientific measurements
• Learn the importance of accuracy and precision in measurements
• Recognize sources of measurement uncertainty, including systematic and random errors+ Show more

Learning Objectives

• Understand what air masses are and how they are classified.
• Identify the characteristics of different air masses.
• Explain what fronts are and how they form.+ Show more

Learning Objectives

• Understand how increasing human populations affect water demand.
• Learn the connection between population growth and ecosystem health.
• Analyze regional examples of resource consumption and environmental pressure.+ Show more

Learning Objectives

• Define physical properties and explain how they help identify and sort substances
• Describe density and solubility and connect each property to measurable observations
• Use evidence from measurements to separate mixtures and make material choices

Learning Objectives

• Explain how the nucleus stores genetic material and controls cell activities.
• Describe how chromosomes, genes, and nuclear envelope/nuclear pores support gene expression and protein synthesis.
• Analyze how changes in nuclear function can affect cell division and differentiation.

Learning Objectives

• Differentiate between mixtures and pure substances based on composition and particle uniformity
• Identify homogeneous versus heterogeneous mixtures using observable traits
• Connect physical properties (such as solubility, density, and boiling point) to appropriate separation methods+ Show more

Learning Objectives

• Identify different types of pollution
• Understand how pollutants affect the environment
• Recognize the impact of pollution on human health and ecosystems+ Show more

Learning Objectives

• Explain what acceleration means in terms of changing velocity over time.
• Identify constant vs changing acceleration from patterns in velocity values.
• Describe how net force and mass affect acceleration using the idea of inertia.

Learning Objectives

• Identify different forms of energy such as mechanical, chemical, electrical, and thermal
• Understand how energy transforms from one form to another
• Recognize real-world examples of energy transformation+ 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 signs that indicate a physical change has occurred
• Differentiate between physical and chemical changes based on observable indicators
• Understand examples of physical changes in daily life

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

• Explain how assumptions and simplifications create limits in scientific models
• Interpret discrepancies between model predictions and observations as evidence for revising models
• Describe ways models can be revised using new parameters, missing processes, or changed structure

Learning Objectives

• Use data and observations to support a scientific claim with specific references.
• Explain why evidence supports a claim using appropriate relationships and units.
• Evaluate alternative explanations by comparing which evidence fits best.

Learning Objectives

• Understand the structure and function of mitochondria in energy production.
• Explain the process of cellular respiration and how ATP is generated.
• Identify the role of the electron transport chain and membrane gradients in energy synthesis.+ Show more

Learning Objectives

• Understand the concept of scale in astronomy using units like astronomical units, light-years, and planetary diameters.
• Interpret scaled diagrams and logarithmic representations of distances within the solar system and galaxy.
• Analyze orders of magnitude differences and how scale influences observational limits and apparent motion.

Learning Objectives

• Understand and interpret symbolic chemical equations.
• Analyze graphs showing mass or temperature changes over time.
• Read and interpret tabulated experimental data.+ Show more

Learning Objectives

• Understand what causes landslides and coastal erosion.
• Analyze how water and gravity influence Earth's surface changes.
• Identify causes and effects of mass wasting and coastal processes.+ Show more

Learning Objectives

• Explain how limited resources affect survival and reproduction in ecosystems
• Describe how changes in food, water, space, and shelter can change population size over time
• Connect resource availability to why organisms do not maintain the same numbers in every habitat

Learning Objectives

• Understand the process of decomposition and its role in ecosystems
• Identify key organisms involved in decomposition such as detritivores, fungi, and bacteria
• Explain how nutrients like carbon and nitrogen are transformed during decomposition+ Show more