Grade 7 Science Worksheets

Learning Objectives

• Explain the mechanisms of natural selection and how they lead to adaptation in populations.
• Identify sources of genetic variation relevant to evolution.
• Describe how environmental pressures influence reproductive success and trait distribution.+ Show more

Learning Objectives

• Understand the structure and function of DNA molecules and chromosomes.
• Explain how genes encode traits and how inheritance occurs through chromosomal transmission.
• Describe the process of chromosome segregation during gamete formation and fusion.+ Show more

Learning Objectives

• Explain how the net force (magnitude and direction) affects an object's motion
• Distinguish between balanced and unbalanced forces using changes in velocity
• Describe how everyday pushes and pulls relate to net force and motion

Learning Objectives

• Understand the processes of diffusion and osmosis as passive transport mechanisms.
• Identify factors that influence the rate of diffusion and osmosis.
• Explain how diffusion and osmosis affect living cells and organisms.+ Show more

Learning Objectives

• Understand the principles of structural optimization and their application in engineering design
• Identify different optimization techniques including topology and form optimization
• Analyze factors influencing optimal design solutions such as cost, strength, and safety margins+ Show more

Learning Objectives

• Understand the processes involved in mountain building and orogeny.
• Identify different geological features associated with convergent plate boundaries.
• Explain how tectonic activities shape mountain architecture over time.+ Show more

Learning Objectives

• Understand the principles and instruments used for temperature measurement, including liquid-in-glass, bimetallic, and digital thermometers.
• Explain the concepts of Celsius scale, fixed points, and calibration for accurate temperature readings.
• Identify sources of measurement uncertainty and environmental influences like radiation and air flow on temperature recordings.+ Show more

Learning Objectives

• Explain how temperature changes affect material properties such as expansion, contraction, and viscosity.
• Describe phase changes and their relation to temperature variations in systems.
• Connect microscopic particle motion to macroscopic changes like volume, density, and pressure.+ Show more

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures.
• Understand solubility, saturation, and concentration in solutions.
• Identify methods for separating mixtures and their practical applications.+ Show more

Learning Objectives

• Understand the concept of measurement units and their importance.
• Learn how to select appropriate instruments for different measurements.
• Explore the significance of accuracy and precision in scientific measurements.+ 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 different ecological monitoring techniques used in Alberta.
• Recognize the importance of sampling design and data quality in ecological studies.
• Identify how long-term monitoring helps detect ecological trends and patterns.+ Show more

Learning Objectives

• Explain how square-cube relationships change forces and heat transfer when an object is scaled up or down
• Use surface-to-volume reasoning to predict how scaling affects resistance and thermal behavior
• Describe how Reynolds number implications can change fluid flow behavior at different scales

Learning Objectives

• Explain the transfer of energy through different trophic levels in ecosystems.
• Calculate and interpret trophic efficiency percentages in various environments.
• Describe how biomass pyramids illustrate energy flow and limitations at higher levels.+ Show more

Learning Objectives

• Understand the processes involved in decomposition and nutrient cycling.
• Identify roles of detritivores, fungi, bacteria, and abiotic factors in decomposition.
• Describe carbon and nitrogen transformations during organic matter breakdown.+ Show more

Learning Objectives

• Understand the concept of biodiversity and how it is measured using indices.
• Identify different biodiversity metrics such as species richness and evenness.
• Interpret diversity values across habitats and evaluate ecological stability.+ Show more

Learning Objectives

• Describe the structure and stratification of freshwater systems like ponds and lakes.
• Explain how oxygen gradients and light penetration influence aquatic community composition.
• Analyze seasonal phenomena such as thermal turnover and their effects on dissolved oxygen and nutrient mixing.+ Show more

Learning Objectives

• Identify various structural, physiological, and behavioral adaptations in organisms.
• Explain how environmental pressures like temperature, moisture, and predation influence adaptations.
• Relate specific adaptations to habitats such as wetlands, forests, and open meadows.+ Show more

Learning Objectives

• Understand how to compare sizes and distances within the solar system and beyond using different units of measurement.
• Interpret scaled diagrams and logarithmic representations of astronomical data.
• Analyze orders of magnitude differences and their effects on observation and perception.

Learning Objectives

• Understand how anatomical features provide evidence for evolution.
• Identify homologous and analogous structures in different species.
• Analyze morphological data to interpret phylogenetic relationships.+ Show more

Learning Objectives

• Understand the particle model as a representation of matter composed of atoms and molecules.
• Explain how chemical changes involve breaking and forming bonds between particles without changing mass.
• Visualize and describe particle interactions during chemical reactions to explain conservation of mass.

Learning Objectives

• Describe the evidence supporting the theory of plate tectonics.
• Explain how geologic features such as mid-ocean ridges and trenches relate to plate movements.
• Identify significance of fossil distribution and rock types in reconstructing past continents.+ Show more

Learning Objectives

• Explain the evidence supporting the theory of plate tectonics, including fossil distribution and matching continental margins.
• Identify key geologic features such as mid-ocean ridges, trenches, and mountain ranges related to plate movements.
• Describe how magnetic striping, earthquake, and volcanic activity provide evidence for seafloor spreading and plate motion.+ Show more

Learning Objectives

• Understand the different data collection techniques used in ecological monitoring.
• Identify key considerations for designing effective monitoring protocols.
• Recognize how standardized sampling enables detection of ecological changes over time.+ Show more

Learning Objectives

• Understand how different materials behave under compression, tension, and bending.
• Compare timber, steel, and concrete in load-bearing construction applications.
• Analyze the influence of environmental factors on material performance and maintenance.+ Show more

Learning Objectives

• Describe the hierarchical levels of biological organization from individuals to the biosphere.
• Identify roles of producers, consumers, and decomposers in ecosystems.
• Explain how energy flows through trophic levels and affects ecosystem stability.+ Show more

Learning Objectives

• Describe the processes of erosion by water, glaciers, wind, and gravity.
• Identify the distinctive sedimentary signatures produced by different agents of erosion.
• Explain how transport distance and energy influence grain size and sorting.+ Show more

Learning Objectives

• Understand the difference between mixtures and pure substances.
• Identify different types of mixtures based on observable traits.
• Learn methods of separation such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand different prototyping approaches including scaled physical models, digital finite-element models, and laboratory load rigs.
• Compare advantages and limitations of each prototyping method for assessing strength, stiffness, and failure modes.
• Learn about instrumentation such as strain gauges and displacement transducers used to measure response.+ Show more

Learning Objectives

• Identify the three primary modes of heat transfer: conduction, convection, and radiation.
• Describe the molecular mechanisms underlying each mode.
• Give everyday examples of conduction, convection, and radiation.+ Show more

Learning Objectives

• Understand how probability applies to predicting genetic variation among offspring.
• Interpret Punnett square outcomes to determine inheritance probabilities.
• Calculate expected genotype and phenotype ratios in monohybrid crosses.+ Show more

Learning Objectives

• Understand the systematic approaches involved in ecological inquiry.
• Identify methods to collect and interpret ecological data.
• Recognize local examples of ecological relationships and human impacts.+ Show more

Learning Objectives

• Describe how tensile, compression, and bending tests reveal key material properties used in design.
• Explain how non-destructive testing (ultrasonic testing and hardness measurements) helps evaluate materials without damaging them.
• Relate material variability, anisotropy (especially in timber and composites), and strain localization to safety factors and design codes.

Learning Objectives

• Understand the fundamentals of engineering design, including problem definition and criteria setting.
• Learn how to create specification documents, trade-off matrices, and evaluate feasibility based on materials, cost, and environmental factors.
• Recognize the importance of iterative refinement to improve design solutions aligned with objectives and available resources.+ Show more

Learning Objectives

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

Learning Objectives

• Understand the role of gravitational attraction in orbital motion within the solar system and galaxies.
• Describe how elliptical orbits and orbital periods are influenced by mass and distance.
• Apply mathematical relationships to determine orbital velocity and centripetal effects for planets and moons.+ Show more

Learning Objectives

• Understand how gravitational attraction influences orbital motion within the solar system and galaxies.
• Identify the mathematical relationships that quantify orbital velocity and centripetal effects for planets and moons.
• Analyze observational evidence such as orbital trajectories, Keplerian patterns, and gravitational perturbations to explain motion stability.

Learning Objectives

• Understand the processes involved in the rock cycle, including weathering, erosion, sedimentation, metamorphism, melting, and solidification.
• Identify how tectonic activity and surface processes interact to transform rocks and recycle Earth's materials.
• Describe the role of different geological environments in the formation and transformation of rocks.+ Show more

Learning Objectives

• Understand passive solar design strategies
• Identify components that improve thermal performance
• Analyze how design choices affect energy efficiency

Learning Objectives

• Understand the differences in chemical stability between noble metals and reactive non-metals.
• Identify observable indicators of chemical reactions such as gas evolution, color changes, and precipitate formation.
• Recognize how chemical properties influence material choice and separation methods.

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 how to create and interpret distance–time and speed–time graphs.
• Learn the significance of slope and area under curves in motion graphs.
• Develop skills to extract average and instantaneous rates from graphs using examples like downhill runs.+ Show more

Learning Objectives

• Understand the different types of chemical reactions, focusing on synthesis reactions.
• Learn to identify synthesis reactions through descriptions and diagrams.
• Recognize the key features of synthesis reactions at the particle level.

Learning Objectives

• Identify examples of homogeneous and heterogeneous mixtures.
• Describe common methods such as filtration, distillation, chromatography, and magnetic separation used to separate mixtures.
• Explain how differences in solubility, particle size, and boiling points influence separation techniques.+ Show more

Learning Objectives

• Explain how system models represent energy inputs, useful outputs, and waste heat
• Use energy flow diagrams to trace energy transformations and account for conservation of energy
• Identify dominant loss mechanisms by comparing useful output to total input+ Show more

Learning Objectives

• Understand the functions of supports, foundations, and load paths in structures.
• Identify how compression, tension, and shear forces act on beams, columns, and foundations.
• Recognize material properties such as stiffness, strength, and durability relevant to structural safety.+ Show more

Learning Objectives

• Describe how heat energy moves through conduction, convection, and radiation.
• Relate energy transfer mechanisms to phenomena such as thermal conductivity differences, convective currents, and radiant heating.
• Explain the relationship between temperature gradients, specific heat, and phase changes in matter.

Learning Objectives

• Describe the basic ideas of the particle model for matter.
• Explain how particle spacing, movement, and forces determine properties like density and pressure.
• Relate observable measurements such as diffusion, thermal expansion, and compressibility to particle arrangements.+ Show more