Grade 7 Science Worksheets

Learning Objectives

• Define and identify forces acting on objects
• Explain the concept of static and dynamic equilibrium
• Interpret graphical representations of balanced forces+ Show more

Learning Objectives

• Explain how surface albedo and emissivity influence radiative heat exchange between buildings and the environment
• Compare reflective roofs and low-emissivity glazing as strategies to reduce unwanted solar gain and radiative heat loss
• Use seasonal and diurnal changes in irradiance to predict when radiative strategies are most effective

Learning Objectives

• Identify and compare the three main modes of heat transfer: conduction, convection, and radiation.
• Use temperature changes and evidence from real-life situations to explain how heat energy moves.
• Distinguish how transfer rates differ across materials and environments.

Learning Objectives

• Explain how scientific claims are supported by evidence using a clear chain from observations to reasoning.
• Evaluate arguments for consistency between stated quantities and what data actually show.
• Use scientific principles to justify why evidence supports a claim while avoiding unsupported cause-and-effect.

Learning Objectives

• Explain how design constraints can include environmental and human health impacts
• Evaluate whether a solution is both technically feasible and socially/environmentally responsible
• Use science ideas (pollutants, weathering, durability) to justify constraint choices

Learning Objectives

• Distinguish exponential growth from logistic growth using the idea of carrying capacity
• Explain how limiting factors (food, predation, disease, abiotic stress) affect population size
• Classify influences as density-dependent or density-independent+ Show more

Learning Objectives

• Identify how different measurement tools have varying levels of resolution.
• Understand how repeated measurements estimate uncertainty.
• Learn how graphs and tables can display measurement ranges and error margins.+ Show more

Learning Objectives

• Understand different modes of heat transfer: conduction, convection, radiation.
• Analyze how each transfer mode affects energy efficiency in systems.
• Apply principles of energy transfer to real-world systems like passive solar houses.+ Show more

Learning Objectives

• Define saturation and supersaturation in liquids.
• Identify examples of saturation in everyday life.
• Explain the process of phase change between dissolved and solid states.+ Show more

Learning Objectives

• Summarize how habitat alteration, pollution, resource extraction, and non-native species can change ecosystems.
• Explain how human impacts can affect species composition, ecosystem functions, and long-term resilience.
• Identify stewardship principles such as mitigation, habitat protection, restoration priorities, and evidence-based monitoring.

Learning Objectives

• Identify physical and chemical properties of matter using observable and measurable evidence.
• Explain how properties help classify substances under consistent conditions.
• Use everyday examples (ice, sand, iron) to connect properties to identification.

Learning Objectives

• Explain how test data can show whether a design meets success criteria.
• Describe specific design changes and connect each change to evidence from results.
• Justify revisions while considering constraints such as safety, available materials, and cost.

Learning Objectives

• Understand the difference between exothermic and endothermic reactions.
• Identify signs of energy transfer during chemical and physical changes.
• Recognize how bond breaking and formation relate to energy exchange.+ Show more

Learning Objectives

• Explain how chloroplasts capture light energy and use it to help make energy-rich molecules during photosynthesis.
• Describe where photosynthesis steps happen inside chloroplast structures (thylakoids and stroma).
• Connect how carbon dioxide is used to form sugars and how chloroplasts relate to cellular respiration and energy balance.

Learning Objectives

• Understand how to critically evaluate scientific explanations and evidence.
• Identify logical fallacies, correlations, and limitations in data and models.
• Distinguish between causation and correlation in explanations.+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify key features like fossils, unconformities, and intrusions as markers for correlating rock layers.
• Analyze stratigraphic data to interpret the sequence of Earth's geological events.+ Show more

Learning Objectives

• Interpret performance test data to identify design weaknesses.
• Understand how design modifications can enhance performance.
• Connect test results to specific design changes and constraints.

Learning Objectives

• Explain how runoff, erosion, and deposition can rapidly change Earth’s surface after heavy rainfall
• Describe how storms can reshape coastal landforms such as dunes and beaches
• Identify examples of sudden and gradual surface changes caused by earthquakes and volcanic activity

Learning Objectives

• Explain how vibrating objects produce sound through pressure waves in a medium
• Relate frequency to pitch and amplitude to loudness
• Describe how sound transmission depends on the presence of a medium+ Show more

Learning Objectives

• Define morphological, physiological, and behavioral adaptations and give grade-appropriate examples for each.
• Explain how adaptations improve survival and reproductive success in specific environments.
• Distinguish adaptations from acclimation and identify common adaptive trade-offs.+ Show more

Learning Objectives

• Understand the concept of ecosystem resilience and its importance.
• Identify factors that influence how ecosystems recover from disturbances.
• Analyze patterns in population changes following environmental disruptions.+ Show more

Learning Objectives

• Understand the concept of thermal conductivity and how it varies among different materials.
• Compare the thermal behaviors of common Alberta construction materials such as fiberglass, spray foam, wood, and masonry.
• Identify factors that influence thermal properties, including porosity, moisture content, and layered assemblies.+ Show more

Learning Objectives

• Identify major organelles in plant and animal eukaryotic cells and describe what each organelle does.
• Explain how cell structures support key processes such as transport, synthesis, and compartmentalization.
• Compare plant vs. animal cell organization using structural features (e.g., chloroplasts and lysosome vs. central vacuole and chloroplasts).

Learning Objectives

• Explain how bolted, welded, and bearing connections transfer loads and help maintain continuous load paths.
• Describe shear, bearing, and slip effects at connections and how these influence structural behavior.
• Use bridge truss nodes and column-to-footing assemblies to predict how connection stiffness and detailing affect capacity and failure modes.+ Show more

Learning Objectives

• Explain why the total amount of matter stays the same in a closed system during physical and chemical changes
• Use particle-level ideas (atoms and molecules) to describe dissolving, mixing, and chemical reactions
• Interpret evidence from mass measurements to support conservation of matter

Learning Objectives

• Understand the different types of organism interactions in a community.
• Identify examples of competition, predation, and symbiosis.
• Explain how these interactions affect resource availability and population dynamics.+ Show more

Learning Objectives

• Explain how energy enters an ecosystem mainly through photosynthesis and moves through trophic levels
• Describe how energy decreases at each transfer due to metabolic processes and energy loss as heat
• Compare the roles of producers, consumers, and decomposers in energy flow+ Show more

Learning Objectives

• Understand the structure and function of red blood cells
• Identify morphological differences among specialized cells
• Explain how cell structures enable specific tasks in the body

Learning Objectives

• Explain how food molecules are broken down and rearranged in the body for growth, repair, and maintenance.
• Describe how chemical energy in food becomes usable energy for life processes.
• Use evidence from food and digestion to connect eating habits with changes in body condition over time.

Learning Objectives

• Identify common human activities that affect ecosystems (deforestation, urban expansion, agriculture, groundwater use, and fossil-fuel emissions).
• Use evidence from water-quality, air-quality, and ecological indicators to describe impacts and trends.
• Explain how mitigation strategies can reduce harm while considering trade-offs and resilience.

Learning Objectives

• Explain how evidence from tests and validated models supports evaluation of design solutions.
• Interpret evaluation results by connecting performance to stated criteria and realistic conditions.
• Identify common failure modes and describe how evidence can reveal them.+ Show more

Learning Objectives

• Explain how square-cube relationships change forces, areas, and volumes when a prototype is scaled up or down.
• Predict how surface-to-volume ratio affects heat transfer and cooling in small versus large objects.
• Describe how Reynolds number can change fluid-flow behavior when conditions or size scale change.

Learning Objectives

• Explain how net force depends on both magnitude and direction of forces in one dimension
• Use sign conventions to add forces along a line and determine the direction of motion
• Interpret equilibrium as zero net force and predict what happens to an object

Learning Objectives

• Identify major reaction types (synthesis, decomposition, single/double displacement, acid–base neutralization, combustion) and describe what changes at the particle level.
• Predict the general class of products by recognizing bonds broken and bonds formed in a reaction.
• Explain how conservation of mass and the rearrangement of atoms connect to reaction types.

Learning Objectives

• Explain how torque and the fulcrum affect the mechanical advantage of a lever
• Calculate ideal mechanical advantage for common lever and pulley systems using simple arithmetic
• Relate geometry (lever arm length, pulley rope segments) to the direction and size of input and output forces+ Show more

Learning Objectives

• Explain how test data are used to identify mismatches with success criteria.
• Describe how targeted design changes can improve performance while respecting constraints (safety, materials, and cost).
• Write clear cause-and-effect explanations connecting evidence to revised outcomes.

Learning Objectives

• Understand the concept of a keystone species and its role in ecosystems.
• Identify examples of keystone species and their effects on biodiversity.
• Analyze the consequences of removing a keystone species from an ecosystem.+ Show more

Learning Objectives

• Understand the fundamental concepts of population including size, density, and distribution.
• Identify factors affecting population growth and decline.
• Explain how demographic and environmental factors influence populations over time.+ Show more

Learning Objectives

• Explain how magma is generated through partial melting of mantle or crust using decompression, volatile addition, and heat transfer.
• Compare intrusive and extrusive igneous rocks based on cooling rate, texture, and grain size.
• Describe how fractional crystallization and magma mixing can change magma composition and produce different rock types.+ Show more

Learning Objectives

• Identify different types of variables in controlled experiments.
• Understand strategies for managing variables to ensure valid results.
• Recognize the importance of control groups and replication in scientific testing.+ Show more

Learning Objectives

• Define physical properties and explain why they are useful for identifying and classifying materials
• Use macroscopic measurements (mass, volume, density, melting/boiling points) as diagnostic criteria for purity
• Connect physical properties (conductivity and optical clarity) to the microscopic behavior of particles

Learning Objectives

• Explain what ecosystem resilience means and how disturbances affect community structure
• Describe how population growth and decline can indicate changes in ecosystem stability
• Use evidence from disturbances to predict whether an ecosystem will recover quickly or undergo longer changes+ Show more

Learning Objectives

• Understand the basic properties of waves such as amplitude, wavelength, and frequency.
• Identify different types of waves: transverse and longitudinal.
• Describe how waves transfer energy without transferring matter.+ Show more

Learning Objectives

• Identify the main functions of the circulatory system.
• Recognize key organs of the circulatory system, such as the heart and blood vessels.
• Understand how the circulatory system works with other body systems to support life functions.

Learning Objectives

• Explain how ecological restoration uses reference conditions and evidence-based success indicators.
• Compare active and passive restoration approaches and describe trade-offs between short-term recovery and long-term resilience.
• Identify factors that affect restoration planning, including habitat connectivity, corridor design, and genetic considerations.+ Show more

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous and analogous structures among species.
• Analyze morphological features to infer phylogenetic relationships.+ Show more

Learning Objectives

• Understand the cause-and-effect relationships between predator and prey populations.
• Identify how changes in predator numbers affect prey populations and vice versa.
• Analyze feedback mechanisms in ecological communities.

Learning Objectives

• Explain how energy changes in chemical reactions can be detected through temperature changes.
• Differentiate exothermic and endothermic reactions using the idea of bond breaking and bond formation.
• Use energy evidence along with other signs to distinguish chemical change from physical change.