Grade 7 Science Worksheets

Learning Objectives

• Describe the formation and origin of the solar system.
• Identify key properties of planets and their orbital features.
• Compare terrestrial planets with gas giants based on their features.+ Show more

Learning Objectives

• Understand how phenotype results from genetic and environmental interactions.
• Identify examples of environmental influence on traits, such as nutrition, UV exposure, and temperature.
• Distinguish between inherited genetic traits and environmental modifications.+ Show more

Learning Objectives

• Understand the role of the nucleus in cellular activities.
• Identify structures related to genetic material inside the nucleus.
• Explain how the nuclear envelope and pores regulate activity.+ Show more

Learning Objectives

• Explain the processes involved in mountain building through plate tectonics.
• Identify key features of orogeny, including crustal deformation, uplift, and volcanic activity.
• Describe surface processes like erosion and isostatic adjustment that shape mountain ranges.+ Show more

Learning Objectives

• Explain how surface-area-to-volume ratio affects cell size and function.
• Identify adaptations that increase exchange surface area in cells and organisms.
• Describe how multicellular organisms overcome surface area limitations through specialized structures.+ Show more

Learning Objectives

• Describe the function of chloroplasts in photosynthesis.
• Explain how pigments in thylakoid membranes absorb light energy.
• Identify the process of carbon fixation in the stroma of chloroplasts.+ Show more

Learning Objectives

• Define different metrics of biodiversity such as richness, evenness, and habitat heterogeneity.
• Interpret what various biodiversity metrics reveal about ecosystem resilience and function.
• Evaluate the relationship between habitat complexity and species assemblages.+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures, solutions, colloids, and suspensions.
• Explain solubility, saturation, and colligative effects in mixtures and solutions.
• Identify real-world examples of mixtures and solutions, including saltwater, emulsions, and granular mixtures.+ Show more

Learning Objectives

• Understand how to interpret and use balanced symbolic equations in stoichiometry.
• Calculate molar and mass ratios of reactants and products in chemical reactions.
• Apply conservation principles to predict reagent needs and product yields.+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Explain how unbalanced forces can change an object's motion.
• Describe the relationship between net force, mass, and acceleration through examples and diagrams.+ Show more

Learning Objectives

• Understand how geologic processes influence the uneven distribution of mineral, energy, and groundwater resources.
• Connect plate tectonics, sedimentation, weathering, and biological activity to resource locations.
• Evaluate the impacts of resource extraction and consider sustainability and access issues.+ Show more

Learning Objectives

• Describe how atoms are represented in particle, ball-and-stick, and lattice models.
• Explain the significance of covalent and ionic bonding in molecular and extended structures.
• Connect subatomic particles and atomic number to material properties and formula notation.+ Show more

Learning Objectives

• Describe the physical and chemical processes shaping Earth's surface including weathering, erosion, and deposition.
• Identify driving forces such as water flow, wind, glaciers, and gravity that influence surface changes.
• Link observable landforms like deltas, canyons, and dunes to surface processes.+ Show more

Learning Objectives

• Define and characterize the three main states of matter: solid, liquid, and gas.
• Explain the processes of phase changes such as melting, freezing, vaporization, condensation, and sublimation.
• Relate temperature and pressure to phase transitions and measurable properties like density and viscosity.+ Show more

Learning Objectives

• Understand the principles of momentum conservation during collisions.
• Differentiate between elastic and inelastic collisions.
• Apply quantitative examples to analyze how mass and velocity affect momentum.+ Show more

Learning Objectives

• Describe how uneven solar heating influences regional climate conditions.
• Interpret temperature and wind maps to identify circulation patterns such as El Niño and monsoons.
• Explain how surface properties, topography, and ocean currents modify local climates.+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Describe how unbalanced forces cause changes in an object's motion.
• Interpret free-button diagrams to analyze forces acting on objects.+ Show more

Learning Objectives

• Understand how gravity governs orbital motion within the solar system and galaxies.
• Explain the relationship between mass, distance, and orbital velocity.
• Identify observational evidence such as orbital trajectories and Keplerian patterns that support gravitational models.+ Show more

Learning Objectives

• Describe the processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Explain how solar energy and gravity drive water movement among Earth's spheres.
• Identify interactions such as river discharge to oceans, groundwater contributions to springs, and seasonal changes in snowpack.+ Show more

Learning Objectives

• Explain how mechanical and chemical weathering modify Earth's surface over time.
• Describe the roles of erosion, transport, and deposition in landscape change.
• Identify landforms created by river, glacier, and coastal processes.+ Show more

Learning Objectives

• Explain how relative motions of the Sun, Earth, and Moon lead to observable lunar phases, eclipses, and seasonal changes.
• Describe orbital geometry and axial tilt effects on day-night cycles and phase timing.
• Analyze observational records and phase sequences to understand predictable patterns in the solar system.+ Show more

Learning Objectives

• Analyze integrated systems by understanding forces, machine functions, and structural evaluation.
• Compare alternative design solutions based on criteria such as mechanical advantage, material choice, and safety.
• Synthesize motion data, mechanical calculations, and structural assessments for regional applications.+ Show more

Learning Objectives

• Explain how scientific evidence supports a claim by connecting observations, data, and reasoning in a clear chain.
• Identify whether an argument uses specific evidence (data values, graph features, or direct observations) rather than unsupported statements.
• Revise an evidence argument to address limitations and avoid incorrect cause-and-effect claims.

Learning Objectives

• Explain how the atmosphere, hydrosphere, geosphere, and biosphere interact as Earth’s systems
• Describe how matter and energy move between spheres through processes like evaporation, precipitation, weathering, and transpiration
• Predict how changes in one sphere can cause effects in other spheres using cause-and-effect reasoning+ Show more

Learning Objectives

• Identify independent, dependent, and controlled variables in an investigation scenario.
• Explain how measurable evidence connects to the dependent variable.
• Determine what must be kept constant to make cause-and-effect conclusions more reliable.

Learning Objectives

• Interpret position–time graphs to determine velocity using slope and identify changing velocity using curve shape
• Interpret velocity–time graphs to determine acceleration using slope and identify zero acceleration using horizontal lines
• Use data tables with motion graphs to confirm whether motion is constant or changing

Learning Objectives

• Identify observable signs that indicate a chemical reaction has occurred
• Differentiate chemical change evidence from physical change evidence
• Connect particle rearrangement to macroscopic observations such as gas, precipitates, and color change

Learning Objectives

• Explain how the geosphere, hydrosphere, atmosphere, and biosphere interact through the movement of matter and energy
• Use examples (erosion, precipitation, evaporation, and transpiration) to describe cause-and-effect links between Earth systems
• Identify how changes in one Earth system can lead to changes in another over time

Learning Objectives

• Understand the purpose and types of systems models used in science and engineering.
• Identify various diagrams and visual representations such as free-body diagrams, circuit schematics, and block diagrams.
• Explain the importance of assumptions, scaling effects, and simplifications when creating models.+ Show more

Learning Objectives

• Explain the difference between genotype and phenotype in terms of genes and observable traits
• Use dominant and recessive allele ideas to predict how genotype can affect phenotype
• Describe how environmental factors can influence phenotype even when genotype is known

Learning Objectives

• Explain how predators, prey, and competitors affect survival and reproduction rates in populations
• Describe how mutualism can increase resource availability for both partners
• Use population trends to connect biotic interactions to changes in population size over time

Learning Objectives

• Understand the principles of load distribution in truss structures.
• Identify and analyze internal forces in truss members using the method of joints.
• Evaluate the efficiency and redundancy of different truss designs for regional applications.+ Show more

Learning Objectives

• Explain how competition affects growth and survival in a community
• Describe how predation transfers energy and influences prey and predator populations
• Differentiate mutualism, commensalism, and parasitism as types of symbiosis

Learning Objectives

• Describe how the water cycle moves water among the atmosphere, land, and oceans.
• Explain how energy from the Sun and cooling lead to evaporation and condensation.
• Model how gravity drives precipitation and how runoff and infiltration return water to Earth’s systems.

Learning Objectives

• Understand the different types of phase changes and what causes them.
• Describe how energy transfer affects particle arrangement during phase transitions.
• Identify the processes involved in melting, freezing, vaporization, condensation, sublimation, and deposition.+ Show more

Learning Objectives

• Understand the different types of interactions between populations such as competition, predation, and mutualism.
• Identify how these interactions influence community composition and population dynamics.
• Explain concepts like resource partitioning and niche separation that allow coexistence of species.+ Show more

Learning Objectives

• Define and identify physical properties such as density, melting point, boiling point, color, hardness, solubility, and electrical conductivity.
• Explain how physical properties can be used to identify and separate substances.
• Describe the concepts of density and solubility and their practical applications in material identification.+ Show more

Learning Objectives

• Explain how the law of superposition helps determine the relative order of rock layers
• Use cross-cutting relationships to determine which geologic features are younger
• Interpret unconformities and faults to construct a relative geologic time sequence

Learning Objectives

• Understand the structure and function of different specialized cells in the human body and plants.
• Identify morphological features that enable cells to perform their specific roles efficiently.
• Explain how cellular specialization contributes to the overall functioning of tissues and organs.+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow influence ecosystems.
• Explain how disturbance frequency, intensity, and scale affect biodiversity and community dynamics.
• Identify species adapted to regular disturbance regimes and their resilience mechanisms.+ Show more

Learning Objectives

• Explain how friction opposes relative motion between two touching surfaces
• Use force comparisons (applied force vs. friction) to predict whether motion speeds up, slows down, or stays constant
• Describe how surface texture affects the magnitude of friction and the outcome of motion

Learning Objectives

• Explain how Earth’s tilt and yearly orbit change the Sun’s apparent height and daylight length.
• Describe how seasonal solar energy patterns differ between the Northern and Southern Hemispheres.
• Use evidence from day length changes to predict summer and winter conditions at different latitudes.

Learning Objectives

• Explain how infiltration and aquifers contribute to groundwater storage in the water cycle
• Describe how hydraulic pressure differences and gravity influence groundwater movement
• Identify how recharge and pumping affect groundwater levels, baseflow, and water availability+ Show more

Learning Objectives

• Understand how differential survival and reproduction influence the prevalence of adaptive traits in populations.
• Identify the roles of variation, heritability, and selective pressures in evolution.
• Analyze examples such as pesticide resistance and camouflage to illustrate natural selection.+ Show more

Learning Objectives

• Explain the main mechanisms leading to new species formation, including reproductive isolation and geographic separation.
• Describe examples of speciation, such as adaptive radiation and plant polyploidy.
• Analyze how environmental and geological factors influence biodiversity and species evolution.+ Show more

Learning Objectives

• Explain the role of gravity in governing orbital motion within the solar system.
• Describe the mathematical relationships between mass, distance, and orbital velocity.
• Interpret observational evidence such as orbital trajectories and Keplerian patterns.+ Show more

Learning Objectives

• Understand the principles of simple distillation and its applications.
• Identify the factors affecting vapour pressure and boiling point differences in distillation.
• Explain the limitations of simple distillation with close-boiling mixtures and azeotropes.+ Show more

Learning Objectives

• Explain the process of convective heat transfer in fluids due to buoyancy and density variations.
• Identify and describe formation of circulation cells in air and water during convection.
• Relate convection phenomena to environmental examples like sea breezes, thermals, and lake overturning.+ Show more