Grade 7 Science Worksheets

Learning Objectives

• Explain how tensile, compression, and bending tests help determine material properties used in design.
• Describe non-destructive testing methods (ultrasonic testing and hardness measurements) and what information they provide.
• Interpret how safety factors and design codes account for material variability and anisotropy.

Learning Objectives

• Understand why surface-area-to-volume ratio limits cell size and how it affects cell efficiency.
• Explain adaptations like membrane folding, microvilli, and compartmentalization that increase exchange surfaces.
• Describe how multicellular organisms develop specialized structures and systems to overcome surface area limitations.+ Show more

Learning Objectives

• Classify substances as elements, compounds, or mixtures based on composition and uniformity
• Distinguish pure substances from mixtures using fixed composition and consistent properties versus variable composition and properties
• Explain how identifying a material helps with everyday selection and safe use

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 control methods reduce the influence of unrelated variables in an experiment.
• Identify control and comparison conditions and describe what must stay the same across groups.
• Use consistent timing, tool calibration, and standardized handling to support credible conclusions.

Learning Objectives

• Understand the mechanisms of how cells communicate via chemical and electrical signals
• Identify different types of signaling molecules and their effects
• Recognize the structures involved in direct cell communication, such as gap junctions and plasmodesmata+ Show more

Learning Objectives

• Explain how surface albedo affects solar radiation absorbed by buildings.
• Describe how emissivity controls how much heat a surface gives off as infrared radiation.
• Compare reflective roofs and low-emissivity glazing as radiative heat strategies.+ Show more

Learning Objectives

• Describe how observable physical properties (such as color, density, melting point, and boiling point) help identify and distinguish substances.
• Explain how properties like magnetism, conductivity, and solubility can provide measurable evidence about a material.
• Use physical property information to reason about how mixtures can be separated.

Learning Objectives

• Explain how surface albedo and emissivity affect radiative heat exchange between surfaces and the environment
• Describe how colour and coatings change solar gain and infrared heat transfer
• Compare how reflective roofs and low-emissivity glazing help manage net radiative flux during different times of day and seasons

Learning Objectives

• Define solubility and identify factors that influence it
• Explain the role of solutes and solvents in dissolving processes
• Describe how temperature, surface area, and pressure affect solubility+ Show more

Learning Objectives

• Explain what a load path is and describe how forces travel through structural members
• Distinguish between dead loads and live loads and give examples
• Identify tension, compression, and shear in common bridge or frame members+ Show more

Learning Objectives

• Explain how data tables use consistent units and meaningful labels to communicate measurements clearly.
• Read and interpret graphs by using axis labels, scale, and category information to identify patterns.
• Compare groups and describe relationships using trends, clusters, and the direction/shape of patterns rather than isolated values.

Learning Objectives

• Identify the steps of the technological design process
• Understand how prototypes are used to solve problems
• Recognize the importance of documentation in engineering+ Show more

Learning Objectives

• Explain how gravity and water can move Earth materials downslope and across coastlines.
• Describe how saturation and slope instability can lead to landslides.
• Identify ways waves and storm surge reshape beaches, dunes, and shorelines.+ Show more

Learning Objectives

• Explain how models use abstraction to represent complex systems in manageable ways.
• Identify assumptions, parameters, and units when interpreting or building a numerical model.
• Describe how sensitivity testing and validation help determine whether a model’s predictions are useful.

Learning Objectives

• Explain what acceleration means in terms of changes in velocity over time and the direction (positive or negative).
• Identify whether acceleration is constant or changing by analyzing patterns of velocity over equal time intervals.
• Connect acceleration to net force and mass to describe inertia and predict motion outcomes.

Learning Objectives

• Explain that matter is conserved in a closed system because atoms are rearranged, not created or destroyed.
• Differentiate physical changes (dissolving, mixing) from chemical reactions in terms of particle arrangement and mass.
• Use evidence from mass measurements of reactants and products to support the conservation of matter.

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter and how abiotic factors affect decomposition rates.
• Describe carbon and nitrogen transformations that occur during decomposition and nutrient cycling.
• Connect decomposition rate to soil fertility and ecosystem productivity across wetlands, forests, and grasslands.

Learning Objectives

• Identify independent, dependent, and controlled variables in an investigation and describe how they relate to cause-and-effect claims.
• Use operational definitions to explain exactly how variables will be measured.
• Design a fair test by controlling confounding factors and using control groups and replication.

Learning Objectives

• Identify abiotic factors and explain how they limit where organisms can live.
• Describe how light and temperature shape habitat suitability along gradients.

Learning Objectives

• Explain how empirical investigations (observations and measurements) help build scientific knowledge.
• Describe how evidence and peer community evaluation can support, refine, or replace scientific explanations.
• Use the idea of uncertainty to explain why scientific models can change when new data appear.

Learning Objectives

• Explain how physical changes alter a substance’s appearance or form without changing its chemical identity.
• Identify common physical changes, including phase changes and reversible changes caused by changing conditions.
• Use particle ideas to justify why some changes are physical rather than chemical.

Learning Objectives

• Identify external and internal structures that help organisms survive in their environments.
• Explain how adaptations improve feeding, protection, movement, and reproduction.
• Use functional relationships to describe how traits support balance and resource acquisition.

Learning Objectives

• Understand how to evaluate competing design options by mapping tradeoffs among criteria and constraints.
• Identify how improvements in one feature can negatively impact another feature in design choices.
• Analyze tradeoff scenarios considering safety, efficiency, and feasibility.+ Show more

Learning Objectives

• Understand the concept of carrying capacity
• Identify factors that influence an ecosystem's capacity to support organisms
• Recognize the importance of balancing population size with available resources

Learning Objectives

• Explain how non-native (invasive) species can displace natives and change trophic relationships in an ecosystem.
• Describe common pathways for invasive species introduction and the factors that help them become established.
• Analyze ecological and economic consequences, including reduced native diversity, altered nutrient dynamics, and higher management costs.+ Show more

Learning Objectives

• Explain how structural and behavioral adaptations link form to function in living things.
• Identify examples of adaptations that support life processes such as gas exchange, protection, and water regulation.
• Describe how trade-offs can constrain the performance of traits in different conditions.

Learning Objectives

• Understand how producers create energy from sunlight through photosynthesis.
• Identify the role of producers in the food chain.
• Explain why plants are important for ecosystems.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Explain how uneven heating drives atmospheric energy transfer and convection
• Describe how pressure gradients and prevailing winds relate to weather variability
• Model large-scale circulation (Hadley cell) and connect it to climate patterns+ Show more

Learning Objectives

• Understand the process by which producers convert light energy into chemical energy during photosynthesis.
• Identify the key components and reactants involved in photosynthesis.
• Explain how energy and matter flow through ecosystems via photosynthesis and food chains.+ Show more

Learning Objectives

• Understand how materials expand and contract when heated or cooled
• Identify examples of phase changes due to temperature variations
• Explain how microscopic particle motion influences macroscopic properties+ Show more

Learning Objectives

• Explain how Earth’s tilt and orbit change the Sun’s apparent height and daylight length over the year.
• Describe how seasonal patterns differ between the Northern and Southern hemispheres.
• Use evidence about day length and solar angle to support claims about seasons.

Learning Objectives

• Explain how insulation reduces heat transfer by addressing conduction, convection, and radiation
• Compare insulating materials (fibreglass, foam, and reflective foils) in terms of how they slow heat flow
• Describe how air leakage, thermal bridging, and continuous insulation affect overall heat loss

Learning Objectives

• Explain how particle kinetic and potential energy change during melting
• Describe energy absorption during melting using the idea of latent heat
• Distinguish physical phase changes from chemical changes

Learning Objectives

• Define optimization metrics and explain how they help compare design options under constraints
• Identify tradeoffs in engineering/science problems using measurable criteria
• Use data and stated targets to justify whether a redesign improves overall performance

Learning Objectives

• Understand the concept of food webs and how they illustrate interconnected feeding relationships.
• Explain the significance of redundancy and alternative pathways in a food web for ecosystem stability.
• Analyze how changes to one species affect the broader ecosystem through energy flow and species interactions.+ Show more

Learning Objectives

• Understand basic principles of different temperature sensors
• Recognize factors affecting sensor accuracy and response time
• Identify sources of measurement uncertainty and errors+ Show more

Learning Objectives

• Understand the intrinsic material properties that influence thermal behavior, such as conductivity, specific heat, density, and phase change.
• Compare common Alberta construction materials—fiberglass batts, spray foam, wood framing, and masonry—in terms of thermal resistance and structural considerations.
• Analyze how porosity, moisture content, and layered assemblies affect effective thermal conductivity.+ Show more

Learning Objectives

• Explain how vapor pressure and boiling point differences allow separation of miscible liquids using simple distillation.
• Describe the roles of condensation and collection in producing a distillate with higher purity.
• Identify common limitations of distillation, including close boiling points and azeotropes.+ Show more

Learning Objectives

• Understand how to connect evidence to reasoning in scientific arguments.
• Identify specific data values, graph features, or direct observations that support claims.
• Evaluate the strength of scientific arguments, including addressing limitations and avoiding unsupported cause-and-effect claims.+ Show more

Learning Objectives

• Explain how forces act as causes of changes in an object’s motion using the ideas of velocity and acceleration
• Differentiate balanced forces from unbalanced forces and predict the effect on net force and motion
• Describe how friction, air resistance, and gravity oppose or change motion near Earth

Learning Objectives

• Understand how probability concepts apply to predict genetic variation among offspring.
• Interpret genotype and phenotype ratios from Punnett square outcomes.
• Calculate expected proportions of inherited traits in simple monohybrid crosses.+ Show more

Learning Objectives

• Explain how tectonic uplift and volcanic construction contribute to changes in Earth’s landscapes over time.
• Describe how surface processes such as weathering, erosion, and deposition redistribute materials.
• Compare how changes in uplift versus erosion affect whether topography increases or decreases.+ Show more

Learning Objectives

• Understand how cells group together to form tissues.
• Identify different types of tissues and their functions.
• Explain how tissues combine to create organs.+ Show more

Learning Objectives

• Explain how cell parts work together to carry out life processes
• Identify the functions of key organelles in a typical cell
• Compare how cell structures relate to a cell’s specific role

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Identify how melting point, boiling point, conductivity, refractive index, and gravimetric residue can indicate purity
• Explain how impurities can shift physical properties and widen melting ranges
• Use more than one line of evidence to support a claim about whether a sample is pure