Grade 7 Science Worksheets

Learning Objectives

• Explain how solar input, albedo, and phase changes drive seasonal energy budgets.
• Describe how stored energy is released through radiative, sensible, and latent heat pathways.
• Relate seasonal thermal cycling to soil freeze–thaw, snowpack insulation, and lake stratification.

Learning Objectives

• Explain how beams bend, shear, and deflect when loads are applied
• Describe how span, support conditions, and load types affect beam performance
• Use span-to-depth ratio, material stiffness, and service load ideas to judge stability and comfort

Learning Objectives

• Explain how energy transforms between forms while total energy is conserved.
• Identify examples of mechanical, chemical, electrical, and thermal energy in real systems.
• Describe energy pathways using a cause-and-effect reasoning approach.+ Show more

Learning Objectives

• Explain how differences in physical properties such as density and solubility can be used to separate mixtures.
• Distinguish physical changes from chemical changes by describing whether new substances form.
• Predict how matter will separate or change form when conditions like heating or dissolving are applied.

Learning Objectives

• Explain how average particle kinetic energy is related to temperature.
• Describe how thermal energy depends on both particle motion and number of particles.
• Use the particle model to connect microscopic motion to pressure and thermal changes.

Learning Objectives

• Explain how temperature relates to the average random kinetic energy of particles
• Describe how microscopic particle motion and particle number influence thermal energy
• Use molecular speed ideas to interpret differences in air mass temperatures+ Show more

Learning Objectives

• Explain how weather data (temperature, wind, humidity, and precipitation) can reveal patterns across time and location
• Differentiate weather from climate and describe how climate change can occur over long periods
• Use examples of air pressure and air mass movement to interpret weather data patterns+ Show more

Learning Objectives

• Define biodiversity in terms of genetic, species, and ecosystem diversity.
• Compare biodiversity richness, evenness, and habitat heterogeneity and explain what each can indicate.
• Use biodiversity metrics to interpret patterns related to ecosystem resilience and function.

Learning Objectives

• Identify parts of a mixture in oil sands using physical properties.
• Distinguish physical separation steps from chemical changes during processing.
• Explain how density, particle size, temperature, and additives affect mixture behavior.

Learning Objectives

• Explain how solution concentration describes the amount of solute compared with solvent
• Identify how concentration changes boiling point elevation and freezing point depression
• Use concentration measures such as mass percent and grams per litre to describe dilution or saturation+ Show more

Learning Objectives

• Explain how running water, glaciers, wind, and gravity erode rocks and transport sediment
• Describe how transport energy and distance affect sediment grain size and sorting
• Interpret clues from sedimentary signatures to reconstruct past environments

Learning Objectives

• Describe how wetlands store water and help regulate water flow across a landscape.
• Explain how wetlands cycle nutrients and filter sediments in water.
• Identify how wetland habitats support amphibians and migratory birds.+ Show more

Learning Objectives

• Explain how model evaluation compares predictions to evidence.
• Identify assumptions that may be wrong when model outputs do not match data.
• Describe how computational simulations and input changes help test assumptions.+ Show more

Learning Objectives

• Identify material properties such as strength, stiffness, density, and environmental resilience
• Explain how compression, tension, and bending affect long-term performance of common materials
• Use evidence from a passage to support maintenance and design choices in cold, snowy climates

Learning Objectives

• Describe how standardized ecological monitoring protocols help detect trends over time.
• Identify appropriate methods for collecting habitat and species data (e.g., fixed-site surveys, point counts, remote sensing, water quality sampling).
• Explain why temporal replication and data quality checks improve the reliability of results.+ Show more

Learning Objectives

• Describe how adaptation traits can improve survival and reproduction in specific environments.
• Explain how selective pressures change which traits become more common in a population over generations.
• Identify examples of structural, physiological, and behavioural adaptations from an Alberta habitat context.+ Show more

Learning Objectives

• Explain the difference between temperature and heat using particle motion and energy transfer
• Identify how conduction, convection, and radiation move thermal energy
• Use real-world examples to predict how thermal exchanges affect environments

Learning Objectives

• Understand the roles of producers and consumers within an ecosystem.
• Identify the energy transfer process and its limitations among trophic levels.
• Describe how energy flow influences population structure in communities.+ Show more

Learning Objectives

• Draw and interpret free-body diagrams to represent all relevant forces acting on an object.
• Resolve forces into perpendicular components and use them to find net force magnitude and direction.
• Use vector addition ideas to predict how net force relates to acceleration down an incline.

Learning Objectives

• Explain how chemical change indicators (gas, color change, temperature change, precipitate, and irreversibility) provide evidence that new substances formed.
• Compare chemical vs. physical changes using observed and measured evidence.
• Use multiple indicators and basic data to support a claim that a chemical change occurred.

Learning Objectives

• Understand the different forms of energy and how they transform from one to another.
• Identify real-world examples of energy transformations in Alberta's resource use.
• Explain the law of conservation of energy during various energy processes.+ Show more

Learning Objectives

• Identify observable signs of chemical changes such as colour change, gas evolution, and temperature change.
• Explain at particle level how bonds are broken and formed during a chemical reaction.
• Differentiate between physical and chemical changes based on evidence provided.+ Show more

Learning Objectives

• Describe how energy flows through a food web using trophic levels (producers, consumers, decomposers).
• Interpret how dependencies among organisms form chains and webs.
• Explain how removing or adding a species can change trophic connections and ecological stability.

Learning Objectives

• Explain how thermal resistance reduces heat flow between two environments
• Use R-values and material thickness to compare insulation performance
• Identify where thermal bridges happen and why they matter+ Show more

Learning Objectives

• Classify matter as an element, a compound, a mixture, or a solution based on properties and composition
• Distinguish mixtures from solutions using evidence of uniformity and separability
• Explain why temperature and observable behavior can differ for road salt and dissolved salts in water

Learning Objectives

• Explain how thermal conductivity and specific heat capacity affect heat transfer and temperature change.
• Compare how density, porosity, and moisture content influence effective thermal conductivity in building materials.
• Describe why phase change materials can change thermal behavior during heating or cooling.+ Show more

Learning Objectives

• Define what a keystone species is and explain its role in an ecosystem.
• Identify examples of keystone species and their effects on biodiversity.
• Describe how the removal of a keystone species can impact the ecosystem structure.+ Show more

Learning Objectives

• Explain how insulation changes heat flow between warmer and cooler environments.
• Describe how R-value and material thickness affect thermal resistance.
• Identify examples of insulation choices and their effects on comfort and energy use.

Learning Objectives

• Define solution concentration and identify key vocabulary in context.
• Explain how mass percent and grams per litre describe concentration.
• Use concentration ideas to predict how dilution changes a solution.

Learning Objectives

• Identify different types of competition among species
• Understand how predation influences community dynamics
• Explain mutualism and its role in ecosystems+ Show more

Learning Objectives

• Explain how distance affects how loud a sound seems to an observer.
• Describe how reflection and absorption of sound change sound intensity and echoes.
• Connect pitch to frequency and volume to amplitude using evidence from sound waves.+ Show more

Learning Objectives

• Distinguish between physical changes that preserve identity and chemical changes that create new properties.
• Explain how density differences can cause particles to settle and form layers.
• Explain how solubility differences affect whether substances dissolve in a given liquid.+ Show more

Learning Objectives

• Explain how conduction transfers kinetic energy through solids and across interfaces
• Compare how different materials conduct heat based on conductivity
• Use ideas of thermal contact resistance to predict temperature gradients in building systems+ Show more

Learning Objectives

• Explain how bending, shear, and deflection describe beam performance under loads
• Identify how span, support conditions, and load type affect beam stability and comfort
• Use span-to-depth ratio and material stiffness ideas to predict when a beam may bend or sag too much

Learning Objectives

• Explain how exponential and logistic population models describe population change over time.
• Identify how carrying capacity and density-dependent and density-independent factors affect population growth.
• Use models to make predictions about population patterns in real ecosystems.

Learning Objectives

• Identify independent, dependent, and controlled variables in an investigation scenario
• Use measurable quantities to connect an investigation question to evidence
• Explain why controlling variables is necessary for fair tests+ Show more

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without direct contact.
• Describe how solar radiation intensity, absorptivity, and emissivity affect net radiative heating.
• Use emissivity differences to predict daytime warming and nocturnal cooling of landscapes and buildings.

Learning Objectives

• Understand the different types of phase changes and their characteristics.
• Describe how energy transfer causes changes between solid, liquid, and gas states.
• Explain the concepts of melting, freezing, vaporization, condensation, sublimation, and deposition.+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems using carbon, nitrogen, and phosphorus as examples
• Describe key processes that move nutrients between the air, organisms, soils, and water
• Connect nutrient availability to ecosystem productivity and limiting growth

Learning Objectives

• Understand how material properties, transfer modes, and conservation principles combine in energy systems.
• Analyze energy budgets involving conduction, convection, radiation, storage, and conversion losses.
• Interpret and compare metrics such as net heat gain, fuel energy requirements, and temperature responses.+ Show more

Learning Objectives

• Interpret position-time graphs by using slope and changes in shape to determine velocity behavior
• Interpret velocity-time graphs by using slope to determine acceleration
• Connect graph features (straight lines vs. curves) with constant vs. changing motion+ Show more

Learning Objectives

• Explain the meaning of specific heat capacity and how it relates to thermal energy changes.
• Use the heat equation Q = m c ΔT with correct units (grams, degrees Celsius, Joules or kilojoules).
• Convert between Joules and kilojoules and interpret temperature-change measurements.

Learning Objectives

• Identify the main biotic and abiotic components of an ecosystem.
• Explain how energy flows through an ecosystem from producers to consumers.
• Understand the interactions between living organisms and their environment.+ Show more

Learning Objectives

• Explain how models translate observations into representations that support predictions
• Identify different types of models (physical, diagrammatic, and computational) and describe what each helps predict
• Use model assumptions to reason from expected outcomes to new situations

Learning Objectives

• Describe how simple machines change force magnitude or force direction to make work easier
• Define mechanical advantage as the ratio of output force to input force for a machine
• Calculate or compare mechanical advantage using force values and explain what it means in terms of easier lifting or pulling+ Show more

Learning Objectives

• Explain how waves transfer energy without permanently moving matter.
• Differentiate transverse and longitudinal waves using the motion of particles.
• Relate amplitude and wavelength to a wave’s energy and pattern spacing.+ Show more

Learning Objectives

• Explain how energy moves through trophic levels in a food web.
• Describe why only a fraction of energy becomes available at the next trophic level.
• Predict how trophic position affects biomass and the length of food chains.+ Show more

Learning Objectives

• Explain how temperature differences determine the direction of heat transfer.
• Identify heat transfer by conduction, convection, and radiation in everyday examples.
• Use a simple model to describe how thermal energy can change form as it moves.