Grade 7 Science Worksheets

Learning Objectives

• Explain how infiltration and aquifer storage contribute to the groundwater portion of the water cycle
• Describe how gravity and pressure differences influence groundwater movement and discharge
• Analyze how recharge, permeability, and precipitation affect groundwater availability+ Show more

Learning Objectives

• Compare multiple design options using clear criteria and observed evidence.
• Connect constraints (materials, time, cost, safety) to how outcomes are achieved.
• Explain how tradeoffs are managed when optimizing toward an improved solution.+ Show more

Learning Objectives

• Explain what optimization means in design and identify common performance metrics.
• Describe how constraints are incorporated into an optimization decision.
• Use parameter variation and sensitivity analysis to compare design choices.+ Show more

Learning Objectives

• Explain how organisms move nutrients from the digestive system to body tissues that need them.
• Describe how the circulatory and transport systems help maintain structure and function over time.
• Identify how waste removal prevents harmful buildup in the body.

Learning Objectives

• Explain how magnitude and direction combine to determine net force
• Predict how unbalanced and balanced forces affect an object’s velocity (speed and/or direction)
• Apply net force ideas to everyday situations such as starting, stopping, or redirecting objects

Learning Objectives

• Explain how invasive species spread beyond their native range and why they can grow quickly
• Describe ecological effects of invasive species on food webs, energy flow, and nutrient cycling
• Evaluate how invasive species can reduce biodiversity and change habitats

Learning Objectives

• Explain how Earth’s rotation and revolution create day-night cycles and predictable seasonal changes.
• Describe how the Moon’s position relative to the Sun and Earth leads to lunar phases and eclipses.
• Use simple models (alignment and scale) to connect relative motion to observable patterns over time.

Learning Objectives

• Understand the purpose of physical models in science.
• Identify how physical models represent real objects.
• Learn how models translate observations into predictions.+ Show more

Learning Objectives

• Explain how erosion by different agents (running water, glaciers, wind, and gravity) leads to distinctive sediment results.
• Describe how transport energy and distance affect grain size and sorting.
• Use sediment clues to infer past environments and landscape evolution.

Learning Objectives

• Define carrying capacity and explain its significance in ecology.
• Identify limiting factors that influence population sizes.
• Analyze how resource availability affects populations over time.

Learning Objectives

• Understand how organisms function as systems with internal structures supporting specific roles.
• Identify different body parts involved in processing inputs like food, oxygen, and water.
• Explain how component structures and their functions align to support life processes.

Learning Objectives

• Understand how latitude influences Earth's climate patterns.
• Identify the impact of Earth's tilt and position relative to the equator.
• Explain the connection between latitude and temperature variations.

Learning Objectives

• Understand different options for freshwater management and their tradeoffs.
• Evaluate constraints and environmental impacts of water system designs.
• Identify solutions like surface water storage, groundwater recharge, water recycling, and desalination.+ Show more

Learning Objectives

• Analyze societal, economic, and environmental impacts of various technologies.
• Evaluate short-term and long-term consequences of technological development.
• Assess ethical considerations and policy responses related to technology.+ Show more

Learning Objectives

• Explain how decomposers (such as fungi and bacteria) break down dead organisms and waste
• Describe how decomposition returns nutrients to soil and water for plant regrowth
• Connect decomposition to the cycling of matter in an ecosystem+ Show more

Learning Objectives

• Explain the urban heat island phenomenon and identify key drivers such as surface materials, reduced vegetation, and anthropogenic heat.
• Describe how impervious surfaces, reduced evapotranspiration, and building geometry affect local heat retention and nighttime temperatures.
• Evaluate mitigation strategies (e.g., cool pavements, increased urban greenery, and strategic shading) and predict their likely impacts on comfort and energy use.

Learning Objectives

• Explain how water moves through the atmosphere, land, and oceans during the water cycle.
• Describe the roles of evaporation, condensation, precipitation, runoff, and infiltration.
• Connect water cycle pathways to weather, climate, and ecosystems.

Learning Objectives

• Explain what tradeoffs are when designing a solution with competing criteria and constraints
• Use a tradeoff map to compare how different design options meet evaluation criteria
• Identify acceptable limits (safety, efficiency, feasibility) and how meeting one requirement can worsen another

Learning Objectives

• Understand the concept of mass and how it relates to chemical reactions.
• Learn about the law of conservation of mass and how it applies to closed systems.
• Identify factors that affect mass measurements during chemical processes.

Learning Objectives

• Explain how tectonic activity, weathering, erosion, and deposition reshape Earth’s surface over time
• Distinguish between weathering and erosion and describe how each contributes to landform change
• Use geologic vocabulary to interpret how landscapes can appear stable while still changing

Learning Objectives

• Explain how structural, physiological, and behavioral adaptations help organisms survive in specific environments
• Describe how selective pressures such as temperature, moisture, predation, and resource availability can shape adaptations over time
• Identify adaptation trade-offs and predict how traits may vary across habitats such as wetlands, forests, and open meadows

Learning Objectives

• Explain how energy changes during exothermic and endothermic chemical reactions using temperature evidence
• Relate energy input and release to bond breaking and bond formation
• Use energy-change evidence, along with other signs, to distinguish chemical from physical changes

Learning Objectives

• Understand the concept of tradeoffs in engineering design.
• Identify how improving one feature may affect others.
• Evaluate the importance of criteria and constraints in design choices.

Learning Objectives

• Define design criteria and explain how they differ from constraints in engineering design.
• Use criteria to judge whether a proposed solution will meet success requirements.
• Identify common types of constraints, such as safety, cost, material limits, and scientific principles.+ Show more

Learning Objectives

• Identify biotic and abiotic components in an ecosystem
• Understand the interaction between living organisms and their environment
• Explain how energy flows through an ecosystem

Learning Objectives

• Describe the hierarchy of ecological organization from individual organisms to biospheres (organism → population → community → ecosystem → biosphere).
• Identify the roles of producers, consumers, and decomposers and explain how energy moves through trophic levels.
• Explain how structural features at each level can help ecosystems resist change and recover after disturbances.+ Show more

Learning Objectives

• Understand how bridge designs support weight and distribute loads
• Identify different engineering materials used in structural designs
• Explain how design constraints influence engineering choices+ Show more

Learning Objectives

• Understand how to interpret and balance chemical equations to reflect quantitative relationships.
• Apply mole ratios from balanced equations to calculate amounts of reactants and products.
• Use conservation principles to predict reagent needs and product yields in chemical reactions.+ Show more

Learning Objectives

• Understand the purpose and types of scientific models
• Identify the key components in simple numerical models
• Explain the concept of assumptions and their role in modeling+ Show more

Learning Objectives

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

Learning Objectives

• Explain how buoyancy and density variations cause convective circulation in air and water
• Describe how temperature gradients influence the strength and heat-transport rate of convection
• Connect convection to real-world phenomena such as sea and land breezes, thermals, and lake overturning+ Show more

Learning Objectives

• Explain how limited resources force communities to balance competing needs and goals
• Identify environmental constraints (land, water, and ecosystem health) that affect human decisions
• Evaluate tradeoffs by considering reliability, cost, human health, and ecological protection

Learning Objectives

• Describe what happens to particles during melting.
• Explain how energy transfer affects particle movement in phase changes.
• Identify examples of phase energy from real-life scenarios.+ Show more

Learning Objectives

• Understand how Earth's orbit and tilt affect seasons
• Identify patterns of daylight variation throughout the year
• Explain how Earth's position relative to the sun influences climate and timekeeping

Learning Objectives

• Understand the basic differences between elements and compounds
• Identify features such as atomic composition, bonding, and properties
• Learn examples of elements and compounds and their characteristics+ Show more

Learning Objectives

• Identify and describe ecological levels of organization from individuals to ecosystems
• Explain how higher-level patterns (population, community, ecosystem) can’t be predicted from individual traits alone
• Use examples (such as trout in Alberta waters) to distinguish levels by their properties and processes

Learning Objectives

• Define physical and chemical properties and explain how they help classify substances.
• Identify elements, compounds, and mixtures using measurable properties such as density, solubility, hardness, conductivity, magnetism, and flammability.
• Use observable evidence from property tests to justify classifications.

Learning Objectives

• Understand the defining properties of pure substances such as fixed melting and boiling points, density, and reactivity.
• Distinguish between elements and compounds using physical and chemical tests.
• Identify examples of pure substances, including local minerals and common compounds.+ Show more

Learning Objectives

• Explain how tectonic uplift, volcanic construction, and surface processes work together to shape landscapes over time
• Compare how uplift rates versus erosion rates affect whether topography rises or is worn down
• Describe how climate influences weathering and transport efficiency, changing sediment supply to basins+ Show more

Learning Objectives

• Understand how to define design problems with clear criteria and constraints.
• Identify measurable performance metrics and limits for proposed solutions.
• Translate societal and environmental needs into quantitative targets.+ Show more

Learning Objectives

• Explain why energy decreases at each trophic level in a food web
• Describe how energy limits affect food-chain length and biomass
• Use trophic level vocabulary to classify producers, consumers, and energy flow

Learning Objectives

• Explain how inherited differences and recombination create variation within populations
• Describe how scientists measure variation by examining trait frequency across many individuals
• Connect changes in trait frequency to environmental pressures over generations

Learning Objectives

• Identify independent, dependent, and controlled variables in a scientific investigation
• Understand the role of variables in determining experimental outcomes
• Differentiate between types of variables through examples

Learning Objectives

• Explain how models use abstraction and assumptions to represent real-world systems.
• Identify key parameters, units, and variables used in simple numerical models.
• Describe how scientists validate models using empirical observations and evaluate when predictions are reliable.

Learning Objectives

• Distinguish between balanced and unbalanced forces using the idea of net force
• Predict how an object’s motion (speed and/or direction) changes when forces are balanced versus unbalanced
• Connect real-life examples, such as tug-of-war, to acceleration and constant velocity

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

• Describe how exponential and logistic population models differ and what each implies about resource limits and carrying capacity.
• Explain how density-dependent and density-independent factors affect population growth rates over time.
• Use population models to interpret patterns in real ecosystems and make simple predictions.

Learning Objectives

• Understand how groundwater is stored and moves beneath Earth's surface.
• Identify factors affecting groundwater recharge and discharge.
• Explain the impacts of groundwater decline on surface water systems and water quality.+ Show more