Grade 7 Science Worksheets

Learning Objectives

• Identify observable signs that indicate a chemical reaction has occurred
• Understand how mass measurements relate to chemical changes and the conservation principle
• Learn examples of chemical reactions displaying indicators such as gas production, precipitate formation, and temperature change+ Show more

Learning Objectives

• Construct and interpret graphical relationships between kinetic energy, potential energy, mass, and speed.
• Understand how doubling mass or speed affects kinetic energy through quantitative analysis.
• Analyze energy calculations and correlate motion graphs with energy changes.+ Show more

Learning Objectives

• Understand the physical and biological components of an ecosystem.
• Describe how biotic and abiotic factors interact within an ecosystem.
• Explain the flow of energy through living organisms in an ecosystem.+ Show more

Learning Objectives

• Distinguish between physical and chemical properties of materials using quantitative and qualitative descriptors.
• Identify examples of properties such as density, melting point, solubility, electrical conductivity, reactivity, and flammability.
• Analyze property data to support material identification and separation strategies.+ Show more

Learning Objectives

• Understand the concept of trophic levels in a food web
• Identify producers, consumers, and top predators
• Explain how energy decreases as it moves through the trophic levels+ Show more

Learning Objectives

• Explain how population growth and per-capita consumption increase demand for water, energy, land, and raw materials
• Analyze how increased demand affects ecosystems, biodiversity, and resource cycles
• Use cause-and-effect reasoning to connect urbanization, waste production, and environmental impacts

Learning Objectives

• Explain how plate tectonics, weathering, sedimentation, and biological activity help form uneven distributions of Earth resources.
• Interpret geologic maps and cross sections to connect processes and time scales to mineral, fossil fuel, and groundwater locations.
• Describe how extracting resources can affect ecosystems and regional sustainability, including differences between renewable and nonrenewable resources.

Learning Objectives

• Analyze historical and instrumental data to identify patterns in frequency, magnitude, and geographic distribution of natural hazards.
• Use ideas like hazard maps and recurrence intervals to assess risk and compare short-term event dynamics with long-term trends.
• Explain how natural hazards can create cascading impacts on infrastructure, ecosystems, and communities in coastal or floodplain areas.

Learning Objectives

• Define conservation status using details from the passage
• Identify how threats, population trends, and recovery potential shape risk levels
• Explain how habitat change, genetic diversity, and connectivity affect species vulnerability

Learning Objectives

• Explain how nutrient runoff, hydrocarbons, and airborne deposition can enter ecosystems
• Describe cause-and-effect links between pollution sources and ecological effects
• Use terms such as bioaccumulation, food web, and exposure to interpret environmental impacts

Learning Objectives

• Analyze how human population growth affects demand for natural resources.
• Evaluate the environmental consequences of increased urbanization and resource consumption.
• Understand regional examples of resource usage and their impact on ecosystems.+ Show more

Learning Objectives

• Understand the principles of evaluating multiple design solutions systematically.
• Learn to model performance, cost, durability, and manufacturability trade-offs.
• Apply modeling and comparative analysis to real-world engineering contexts.+ Show more

Learning Objectives

• Compare embryonic development stages across different animal groups
• Identify conserved and transient embryonic structures
• Explain how embryonic patterns support evolutionary relationships+ Show more

Learning Objectives

• Use stratigraphic order to reconstruct timelines from sedimentary layers
• Identify how index fossils correlate rock layers across regions
• Explain how transitional fossils support common ancestry+ Show more

Learning Objectives

• Explain density as mass per unit volume using the particle (arrangement and spacing) view
• Interpret how particle spacing affects density and how this relates to sinking and floating
• Predict how heating can change density when particle spacing increases

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

• Explain how friction and air resistance act opposite to the direction of motion
• Compare how surface texture and contact affect the size of resistive forces
• Describe how resistive forces change an object's speed and convert kinetic energy into thermal energy

Learning Objectives

• Understand the process of mountain formation through tectonic plate movements.
• Identify key features of orogeny, including crustal deformation and uplift.
• Explain how surface processes shape mountain landscapes over time.

Learning Objectives

• Explain how momentum is transferred during different types of collisions.
• Compare elastic and inelastic collisions and identify examples of each.
• Apply the principle of conservation of momentum to predict outcomes of collisions.+ Show more

Learning Objectives

• Explain the difference between design criteria and design constraints in a solution design.
• Write clear, testable design criteria using measurable success targets.
• Use constraints (materials, safety, cost, and science principles) to narrow possible solutions.+ Show more

Learning Objectives

• Distinguish ionic from covalent bonding using particle-level evidence and bonding patterns.
• Relate bonding type to macroscopic properties such as melting point, solubility, and electrical conductivity.
• Construct simple binary ionic salts and molecular compounds using empirical formulas.

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify how fossils, unconformities, and intrusive contacts act as markers for correlating layers and establishing relative ages.
• Synthesize field observations and stratigraphic data to construct sequences of Earth’s geological events.

Learning Objectives

• Understand the structure and movement of Earth's lithospheric plates.
• Identify the different types of plate boundaries and their effects on landforms and geological activity.
• Explain how plate interactions influence earthquakes, volcanoes, and mountain formation.+ Show more

Learning Objectives

• Identify and compare descriptive statistics such as mean, median, mode, and interquartile range (IQR)
• Explain how outliers affect measures of center and spread
• Use simple graphical ideas to interpret differences between data sets+ Show more

Learning Objectives

• Explain the difference between genotype and phenotype in terms of genes and observable traits
• Describe how dominant and recessive alleles affect which phenotype an organism shows
• Use the genotype–phenotype relationship to predict traits and explain why relatives may look different

Learning Objectives

• Explain how density links mass to volume and why it helps identify materials.
• Use the relationship between density, mass, and volume to interpret and solve problems.
• Distinguish intensive from extensive properties by comparing density across samples.

Learning Objectives

• Identify kinetic and potential energy in everyday situations.
• Explain how changes in height and speed affect mechanical energy.
• Use energy conservation ideas to reason about safer motion and loading.

Learning Objectives

• Identify the forces shown on a free-body diagram
• Determine the net force direction from component forces
• Use perpendicular component addition to find the net force magnitude description

Learning Objectives

• Identify common SI units used to measure distance and time
• Use unit names correctly when describing motion
• Recognize that speed is distance divided by time

Learning Objectives

• Understand how conservation of mass governs the behavior of substances in closed-system reactions.
• Learn to balance chemical inputs and outputs to predict reaction yields.
• Recognize examples like sealed combustion and closed corrosion assays that model mass transfers.+ Show more

Learning Objectives

• Understand how solution concentration quantifies the amount of solute relative to solvent.
• Recognize common measures of concentration such as mass percent and grams per litre.
• Explain the effects of concentration on physical properties like boiling point and freezing point.+ Show more

Learning Objectives

• Understand the various separation techniques used in science.
• Identify the appropriate separation method for different mixtures.
• Explain the steps involved in processes such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand the principle of mass conservation in chemical and physical systems.
• Apply mass conservation concepts to reaction stoichiometry, waste tracking, and environmental mass balances.
• Analyze real-world examples of closed systems to predict and reconcile measured versus expected masses.

Learning Objectives

• Identify observable signs of chemical changes such as colour change, gas production, and precipitate formation.
• Understand the particle-level interpretation involving bond reorganization during chemical reactions.
• Differentiate between physical and chemical changes based on evidence of chemical alteration.+ Show more

Learning Objectives

• Differentiate pure substances from mixtures using composition and uniformity
• Identify examples of elements, compounds, and mixtures from everyday materials
• Explain how properties can help determine whether a material is pure or mixed

Learning Objectives

• Explain how homologous and analogous structures provide evidence for evolutionary relationships.
• Identify patterns in limb bones and skull morphology that suggest descent with modification.
• Use anatomical evidence alongside basic genetic and fossil information to make reasonable phylogenetic inferences.

Learning Objectives

• Understand the components and functions of building envelopes including walls, roofs, windows, and foundations.
• Identify how insulation, barriers, and ventilation contribute to thermal performance.
• Learn methods for measuring and assessing envelope performance.+ Show more

Learning Objectives

• Understand methods for mapping load paths in complex structures.
• Identify primary and secondary load routes transferring loads to foundations.
• Analyze the effects of openings, corners, and irregular geometries on load redistribution.+ Show more

Learning Objectives

• Understand different advanced construction materials and how they are manufactured.
• Explain how microstructure influences strength, stiffness, and durability of materials.
• Analyze the trade-offs related to cost, fabrication complexity, and performance of novel materials.+ Show more

Learning Objectives

• Explain characteristic methods for testing material behaviour including tensile, compression, and bending assessments.
• Describe non-destructive testing techniques such as ultrasonic and hardness measurements.
• Understand anisotropy in timber and composites and how it affects material performance.+ Show more

Learning Objectives

• Describe how structural members respond to applied loads through different types of forces.
• Relate geometry and support conditions to internal force distribution in beams and columns.
• Explain the effects of bending, shear, axial forces, and torsion on member deflection and serviceability.+ Show more

Learning Objectives

• Understand different prototyping techniques including physical models, digital analysis, and laboratory rigs.
• Compare the advantages and limitations of scaled physical models, finite-element digital models, and load rigs.
• Recognize instrumentation tools such as strain gauges and displacement transducers used to measure responses.+ Show more

Learning Objectives

• Define key material properties such as density, tensile and compressive strength, stiffness, ductility, toughness, and thermal expansion.
• Explain how these properties influence structural performance and failure modes.
• Contrast materials like wood, steel, and reinforced concrete in terms of strength-to-weight ratio and deformation behaviors.+ Show more

Learning Objectives

• Identify common structural failure modes such as buckling, fatigue cracking, and shear fracture.
• Explain the limits states design philosophy, safety factors, and redundancy in engineering.
• Relate failure mechanisms to geometric, material, and loading characteristics using real-world examples.+ Show more

Learning Objectives

• Describe the steps involved in the design process from defining requirements to selecting solutions.
• Explain how performance objectives like load capacity and stiffness guide design decisions.
• Understand the use of decision matrices and sketches to compare alternative designs.+ Show more

Learning Objectives

• Identify examples of physical changes
• Differentiate between physical and chemical changes
• Observe indicators of chemical reactions+ Show more

Learning Objectives

• Understand the key force systems driving plate motion within the Earth.
• Describe how mantle convection, slab pull, and ridge push influence tectonic activity.
• Explain the interaction between different plate mechanisms and their effects on plate velocity and direction.+ Show more

Learning Objectives

• Identify independent, dependent, and controlled variables in real experimental scenarios.
• Create clear operational definitions for variables so measurements are consistent and replicable.
• Design fair tests by controlling confounding variables, using control groups, and planning replication.