Grade 7 Science Worksheets

Learning Objectives

• Explain the role of chloroplasts in photosynthesis.
• Identify key parts of the chloroplast and their functions.
• Describe the process by which light energy is converted into chemical energy.+ Show more

Learning Objectives

• Understand the particle motion underlying thermal phenomena.
• Explain how temperature measures average kinetic energy of particles.
• Describe how heat energy is transferred through conduction, convection, and radiation.+ Show more

Learning Objectives

• Explain how conservation of mass applies to closed-system reactions.
• Use mass accounting to relate reactant masses to product masses.
• Compare theoretical and measured yields using completeness of a reaction.

Learning Objectives

• Identify qualitative evidence of chemical reactions such as gas production, heat change, colour change, and precipitate formation
• Describe how the pattern of observations can help explain possible reaction types and reaction extent
• Use observation data to make and justify a claim about what likely happened at the particle level

Learning Objectives

• Define forces as interactions that can change an object’s motion.
• Distinguish contact forces from non-contact forces using real examples.
• Explain how net force affects acceleration and motion.+ Show more

Learning Objectives

• Understand different types of atomic models and their representations.
• Identify the relationship between subatomic particles, atomic number, and chemical formulas.
• Distinguish between molecular structures and extended network structures based on bonding patterns.+ Show more

Learning Objectives

• Classify matter as an element, compound, or mixture based on composition and particle relationships.
• Distinguish homogeneous mixtures from heterogeneous mixtures using observable uniformity or visible parts.
• Use classification to predict what may happen during physical and chemical changes in matter.

Learning Objectives

• Describe the basic concepts of population growth, including exponential and logistic models.
• Identify factors that limit population size, such as food, predation, and disease.
• Differentiate between density-dependent and density-independent limiting factors.+ Show more

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures.
• Describe various separation techniques such as filtration, distillation, chromatography, and magnetic separation.
• Relate properties like solubility, particle size, and boiling point to the choice of separation methods.+ Show more

Learning Objectives

• Explain how energy is transferred and transformed during photosynthesis and cellular respiration.
• Describe the connection between chloroplast activity in plants and mitochondria in various organisms.
• Analyze phenomena such as leaf photosynthesis rates and energy use differences in tissues.

Learning Objectives

• Analyze patterns of frequency and magnitude for different natural hazards.
• Interpret hazard maps, recurrence intervals, and probabilistic data to assess risk.
• Understand the cascading impacts of hazards on infrastructure, ecosystems, and communities.

Learning Objectives

• Describe different types of species interactions and provide examples.
• Analyze ecological food webs and predict effects of changes within communities.
• Explain how species behaviors influence community structure across ecosystems.+ Show more

Learning Objectives

• Describe the basic structure and components of a cell.
• Identify functions of key organelles within cells.
• Explain how cell structure reflects its function in living organisms.+ Show more

Learning Objectives

• Understand the basic concept of diffusion and how particles move.
• Learn how temperature affects the rate of diffusion.
• Explain how substances like perfume and sugar distribute evenly over time.+ Show more

Learning Objectives

• Understand major human-induced alterations to ecosystems and their examples.
• Identify the effects of habitat fragmentation, pollution, and invasive species on biodiversity.
• Describe approaches for ecosystem restoration and mitigation.+ Show more

Learning Objectives

• Understand how different components of a building envelope contribute to thermal performance.
• Identify the roles of insulation, barriers, and ventilation in managing heat transfer.
• Learn measurement indicators used to assess envelope performance.+ Show more

Learning Objectives

• Explain how adaptations (structural, physiological, and behavioural) help organisms survive in specific environments.
• Identify examples of adaptation traits related to temperature, water availability, and seasonal change.
• Describe trade-offs in resource allocation and how they affect which traits are favored by natural selection.+ Show more

Learning Objectives

• Understand what adaptive traits are and how they help animals survive.
• Identify examples of camouflage and other adaptive traits in animals.
• Analyze how environmental factors influence the development of adaptive traits.+ Show more

Learning Objectives

• Distinguish between balanced and unbalanced forces using the idea of net force
• Predict how an object’s motion (speed and/or direction) changes when forces are balanced versus unbalanced
• Connect real-life examples, such as tug-of-war, to acceleration and constant velocity

Learning Objectives

• Identify and explain common failure modes such as buckling, fatigue cracking, shear and bending fractures.
• Understand the principles of limit states design, safety factors, and redundancy in structural safety.
• Relate failure mechanisms to geometric, material, and loading characteristics using real-world exemplars.+ 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 how to organize quantitative and qualitative data into tables and graphs.
• Learn to interpret trends and relationships from graphical displays and summary statistics.
• Select appropriate graph types, including axes scaling and trend lines, for data analysis.+ Show more

Learning Objectives

• Describe production pathways from natural resources to common synthetic materials, including feedstocks, polymerization, and refining steps.
• Explain how chemical composition and functional performance are altered during production.
• Identify examples of synthetic materials such as polyethylene, PET, nylon, and metals.+ Show more

Learning Objectives

• Understand the steps involved in the design process from defining requirements to selecting solutions.
• Identify key performance objectives and how they influence design choices.
• Apply decision matrices and sketches to compare different design alternatives.+ Show more

Learning Objectives

• Explain basic concepts of population growth models, including exponential and logistic growth.
• Identify limiting factors such as food, predation, disease, and abiotic stresses that affect populations.
• Distinguish between density-dependent and density-independent influences on populations.+ Show more

Learning Objectives

• Understand how scaling impacts physical behavior in structures, turbines, and biological systems.
• Analyze the relationships between surface area, volume, and size in scaled models.
• Explain the significance of Reynolds number in fluid flow at different scales.+ Show more

Learning Objectives

• Understand the fundamentals of engineering design processes including problem definition, criteria, and constraints.
• Learn how to write clear specifications and use trade-off matrices for decision-making.
• Apply concepts of feasibility, material selection, and environmental factors in designing simple mechanical and environmental systems.+ Show more

Learning Objectives

• Understand the concept of ecological models
• Identify components of ecological models
• Differentiate between conceptual and quantitative models+ Show more

Learning Objectives

• Understand how microscopy reveals the structure of plant and animal cells.
• Identify and compare features of unicellular and multicellular organisms.
• Recognize cellular components such as cell walls, plasma membranes, and organelles.+ Show more

Learning Objectives

• Understand and define physical and chemical properties used to classify substances.
• Identify measurable attributes such as density, solubility, hardness, electrical conductivity, magnetism, and flammability.
• Apply observable and quantitative criteria to distinguish elements, compounds, and mixtures.+ Show more

Learning Objectives

• Calculate average speed using distance and time, with correct units
• Convert between meters per second (m/s) and kilometers per hour (km/h)
• Distinguish average speed from instantaneous speed using numerical examples

Learning Objectives

• Distinguish mutualism, commensalism, and parasitism using defining evidence
• Explain how symbiotic relationships can change population size and resource use
• Use an example to describe a likely ecological consequence of each symbiosis type

Learning Objectives

• Understand the transfer of energy through different trophic levels in ecosystems.
• Describe the roles of producers, consumers, and decomposers in energy pyramids and food webs.
• Explain how photosynthesis and cellular respiration contribute to energy transfer.+ Show more

Learning Objectives

• Understand how abiotic factors such as temperature, moisture, light, soil nutrients, and pH affect species distribution and population dynamics.
• Describe the interactions between abiotic conditions and biotic pressures in ecosystems.
• Evaluate how seasonal, daily fluctuations, and extreme events influence population resilience and survival.+ Show more

Learning Objectives

• Define and distinguish between homogeneous and heterogeneous mixtures.
• Identify examples of different types of mixtures, including solutions, suspensions, and colloids.
• Understand concepts of solubility, saturation, and concentration in mixtures.+ Show more

Learning Objectives

• Understand the different types of weathering processes that break down rocks.
• Identify physical, chemical, and biological mechanisms responsible for weathering.
• Explain how weathering influences landscape formation and sediment supply.+ Show more

Learning Objectives

• Understand how abiotic factors such as temperature, moisture, light, soil nutrients, and pH affect species distribution and population dynamics.
• Identify examples of abiotic stresses and opportunities in the environment.
• Explain the interaction between abiotic conditions and biotic pressures in ecosystems.+ Show more

Learning Objectives

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

Learning Objectives

• Understand the principles of relative dating including superposition, original horizontality, and cross-cutting relationships.
• Identify key stratigraphic markers such as fossils, unconformities, and intrusive contacts used to correlate rock layers.
• Explain how field observations and stratigraphic data are synthesized to interpret Earth's geological history.

Learning Objectives

• Understand measurement precision and how to estimate uncertainty.
• Learn to select appropriate measurement instruments for accurate observations.
• Apply proper calibration techniques to balances and graduated cylinders.+ Show more

Learning Objectives

• Distinguish between quantitative and qualitative observations in scientific inquiry.
• Identify appropriate metric units and instruments for measuring length, mass, and volume.
• Recognize sources of error in scientific data collection and how to minimize them.+ Show more

Learning Objectives

• Understand the key components of experiment design, including variables and operational definitions.
• Identify appropriate control conditions in scientific experiments.
• Recognize the importance of reproducibility and sample size in research.+ Show more

Learning Objectives

• Identify and manage variables within controlled scientific experiments.
• Understand strategies for randomization, blocking, and replication in experiments.
• Apply systematic methods to control confounding influences in scientific testing.+ Show more

Learning Objectives

• Organize quantitative and qualitative observations into tables and graphs
• Select appropriate graph types and interpret axis scales
• Understand trends and relationships through graphs and summary statistics+ Show more

Learning Objectives

• Understand how energy transfer causes changes in states of matter.
• Identify the processes of melting, freezing, evaporation, and condensation.
• Explain particle behavior during phase changes using the particle model.+ Show more

Learning Objectives

• Understand various management strategies for maintaining biodiversity and ecosystem services.
• Evaluate the benefits and potential trade-offs of approaches such as habitat corridors, protected areas, and restoration.
• Analyze case examples like wetland restoration and corridor establishment for their ecological, economic, and social impacts.+ Show more

Learning Objectives

• Explain qualitatively how gas pressure, volume, and temperature affect one another
• Describe how diffusion and compressibility help explain everyday gas observations
• Use real-world examples (compressed air, heated air) to predict what changes and why

Learning Objectives

• Explain how resource availability impacts population growth and size.
• Interpret logistic growth curves and concepts of carrying capacity.
• Analyze examples of population responses to limited resources, such as deer herd fluctuations and algal blooms.+ Show more