Grade 7 Science Worksheets

Learning Objectives

• Identify biotic and abiotic factors in an ecosystem
• Explain cause-and-effect relationships between abiotic conditions and resource availability
• Describe how sunlight, soil, water, temperature, and topography influence living things

Learning Objectives

• Identify observable evidence that a chemical change has occurred (color change, gas formation, precipitate formation, temperature/energy change, and odor change).
• Explain chemical change at the particle level by describing disrupted bonds and newly formed bonds rather than simple particle rearrangement.
• Use evidence to distinguish chemical changes from physical changes in everyday examples.

Learning Objectives

• Interpret position-time graphs by using slope to determine velocity and curvature to identify changing velocity
• Interpret velocity-time graphs by using slope to determine acceleration
• Use data tables with motion graphs to support conclusions about constant versus changing motion+ Show more

Learning Objectives

• Explain how invasive species spread beyond their native range and why they can outcompete native organisms.
• Describe ecological consequences of invasive species, including impacts on food webs, energy flow, and nutrient cycles.
• Evaluate how long-term changes in ecosystems can result from invasive species becoming established.

Learning Objectives

• Identify and distinguish between mixtures and pure substances.
• Describe the differences between heterogeneous and homogeneous mixtures.
• Explain physical properties used to separate mixtures, such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand the concept of trophic efficiency and its significance in ecosystems.
• Explain how energy is transferred between trophic levels and why energy diminishes at higher levels.
• Interpret energy pyramids and relate them to biomass and energy flow in ecological communities.+ Show more

Learning Objectives

• Define static and kinetic friction and identify examples of each.
• Explain how surface texture and normal force affect friction.
• Describe how friction and drag influence motion in everyday situations.+ Show more

Learning Objectives

• Understand how to evaluate scientific models and compare predicted outcomes with evidence.
• Identify assumptions in models that may be oversimplified or incomplete.
• Learn how computational simulations can reveal the impact of input changes on model outputs.+ 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

• Explain how predator and prey populations can change over time through feedback loops.
• Use cause-and-effect reasoning to predict what happens when predators increase or decrease.
• Describe how predator-prey dynamics can influence other organisms in a community.

Learning Objectives

• Understand how position-time graphs represent motion patterns.
• Interpret slope and curvature in position-time and velocity-time graphs.
• Relate data tables to graphical motion representations.+ Show more

Learning Objectives

• Compare how timber, structural steel, and reinforced concrete behave under compression, tension, and bending.
• Identify material properties such as strength, stiffness, and density that affect design choices.
• Explain how environmental factors like frost and snow influence long-term maintenance needs.

Learning Objectives

• Use specific heat, mass, and temperature change to quantify energy transfer in Joules and kilojoules.
• Explain how thermal energy calculations connect to practical situations and energy budgets.
• Interpret basic claims about heating, melting, and energy units using quantitative reasoning.

Learning Objectives

• Explain how technologies can create benefits and costs through real-world trade-offs.
• Identify ethical considerations in technology, including fairness, privacy, and responsibility across a product’s life cycle.
• Describe how engineering choices can affect people and ecosystems over time.

Learning Objectives

• Understand the principle of conservation of mass in chemical reactions.
• Identify how atoms are conserved and rearranged during reactions.
• Explain the concept of closed systems and their importance in mass measurement.+ Show more

Learning Objectives

• Explain the conservation of energy using the ideas of energy transfer between a system and its surroundings.
• Identify how friction and other forces change motion and temperature by redistributing energy.
• Use energy models to distinguish between different forms of energy and understand that energy is not lost.

Learning Objectives

• Understand the concept of control variables in experiments.
• Identify control methods used to reduce bias in scientific studies.
• Explain why having control and comparison conditions is essential for credible results.+ Show more

Learning Objectives

• Explain how energy moves through a food web from producers to higher trophic levels.
• Describe how matter cycles through ecosystems using decomposition.
• Interpret how changes to one species can affect other trophic levels.

Learning Objectives

• Explain conservation of energy using the idea of energy transfer between system and surroundings.
• Describe how friction can convert mechanical energy into thermal energy and affect motion.
• Identify and use energy models to show how energy changes form without being lost.

Learning Objectives

• Explain the particle model of matter and how it describes the arrangement and motion of particles.
• Relate microscopic particle behavior to macroscopic properties such as states of matter, diffusion, and density changes.
• Differentiate between physical rearrangements and chemical transformations in terms of particle interactions.+ Show more

Learning Objectives

• Explain how technologies create both benefits and costs for people and ecosystems.
• Identify key ethical issues related to technology, including fairness in access, privacy, and product responsibility across the life cycle.
• Make connections between engineering choices and real-world consequences.

Learning Objectives

• Describe the components of a food web, including producers, consumers, and decomposers.
• Explain the flow of energy among different organisms within a food web.
• Identify regional examples of food webs in Alberta wetlands and river systems.+ Show more

Learning Objectives

• Understand how waves transfer energy without moving matter permanently.
• Differentiate between transverse and longitudinal waves.
• Explain the significance of amplitude and wavelength in wave energy.+ Show more

Learning Objectives

• Understand the importance of oral histories in ecological knowledge.
• Identify how traditional place-based knowledge informs environmental understanding.
• Recognize examples of stewardship practices in Indigenous communities.

Learning Objectives

• Understand how energy pathways and transformations are represented in system models.
• Identify the principles of energy conservation in mechanical and industrial systems.
• Analyze energy flow diagrams, including Sankey diagrams, to determine efficiencies and losses.+ Show more

Learning Objectives

• Understand how to represent thermal energy changes numerically using units of energy and temperature scales.
• Apply formulas involving specific heat, mass, and temperature change to calculate energy transfer in Joules and kilojoules.
• Interpret practical examples of heat calculations such as heating water, melting snow, or warming air in Alberta contexts.+ Show more

Learning Objectives

• Identify physical and chemical properties used to choose materials for specific applications
• Explain how chemical stability helps prevent unwanted reactions such as rusting and acid attack
• Use material properties (density, strength, solubility, reactivity) to justify material selection decisions

Learning Objectives

• Use consistent units, labels, and scales to organize measurement data in tables and graphs.
• Interpret graphs by describing trends, clusters, and comparisons between groups.
• Use relationships (direction and shape) to explain what the data suggest, not just single values.

Learning Objectives

• Explain how Earth’s axial tilt and revolution around the Sun produce seasonal changes and variations in day length.
• Describe how the daily apparent motion of the Sun supports timekeeping and calendar conventions.
• Use models and vocabulary (axial tilt, hemisphere, day length, equinox, solstice) to make evidence-based claims about Earth-Sun cycles.

Learning Objectives

• Explain how abiotic factors (temperature, moisture, light, nutrients, and pH) affect where organisms live and how well they survive.
• Describe how daily and seasonal changes in abiotic conditions can create stress or opportunities for populations.
• Use cause-and-effect reasoning to predict how extreme abiotic events can change population size and carrying capacity.

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves
• Describe how solar intensity, absorptivity, and emissivity affect net radiative heating
• Compare how different surfaces (roofs, vegetation, snow) can change daytime warming and nighttime cooling

Learning Objectives

• Understand the systematic approaches used in ecological inquiry.
• Identify key components such as hypothesis framing and variable selection.
• Recognize the importance of evidence and data interpretation in ecology.+ Show more

Learning Objectives

• Explain how vibrating objects produce pressure waves in a medium
• Describe how frequency affects pitch and amplitude affects loudness
• Interpret how sound transmission depends on a medium such as air+ Show more

Learning Objectives

• Define measurement accuracy and explain its importance in science.
• Identify factors that contribute to measurement uncertainty.
• Describe how tool resolution limits measurement precision.+ Show more

Learning Objectives

• Identify common simple mechanisms (gears, pulleys, levers, and linkages) and describe how they transfer motion or force.
• Explain how an engineered system connects input energy to output performance using cause-and-effect reasoning.
• Use evidence from a mechanism (like gear ratio or lever position) to predict changes in speed and torque.

Learning Objectives

• Explain how fair tests isolate one design variable while keeping other conditions constant.
• Identify appropriate measurement tools, units, and scales for collecting performance data.
• Describe how consistent testing supports reliability and helps attribute results to design changes.

Learning Objectives

• Explain the particle model of matter and how it describes observable properties of substances.
• Describe how chemical change happens at the particle level (breaking bonds and forming new bonds).
• Use the particle model to reason why mass is conserved in a closed system during chemical reactions.

Learning Objectives

• Identify examples of competition, predation, and symbiosis in real ecosystems
• Explain how species interactions affect survival, growth, and population size over time
• Distinguish between mutualism, commensalism, and parasitism within symbiosis

Learning Objectives

• Understand microscopic particle motion and its relationship to temperature.
• Identify how particle movement influences thermal energy and pressure.
• Explain variations in particle speed in different environmental contexts.+ Show more

Learning Objectives

• Identify various sources of pollution relevant to Alberta ecosystems.
• Understand how pollutants enter and impact terrestrial and aquatic environments.
• Recognize pathways of exposure and associated ecological consequences.

Learning Objectives

• Understand the concept of biodiversity and its different components.
• Learn about indices used to measure biodiversity, such as richness, evenness, and habitat heterogeneity.
• Interpret what various biodiversity metrics reveal about ecosystem resilience and health.+ Show more

Learning Objectives

• Interpret experimental data using patterns, variability, and measurement quality
• Explain how reliability increases when repeated measurements are similar
• Identify common sources of error and how they affect confidence in conclusions+ Show more

Learning Objectives

• Explain how the conservation of mass applies to closed-system chemical and physical changes
• Use mass accounting to relate reactant masses to product masses in sealed systems
• Distinguish theoretical yield from measured yield using evidence about incomplete reactions or measurement differences+ Show more

Learning Objectives

• Understand the concept of saturation and how it relates to solubility limits.
• Identify conditions that lead to supersaturation and phase change.
• Recognize regional examples of saturation phenomena, such as evaporation and crystallization.+ Show more

Learning Objectives

• Identify how internal systems (transport, digestion, coordination) help organisms survive and function.
• Describe how external structures (shells, spines, coloration, beak forms) support protection, feeding, and movement.
• Explain functional relationships between traits and increased chances of obtaining resources, maintaining balance, and reproducing.

Learning Objectives

• Learn what mass is and how it differs from weight.
• Identify common tools used to measure mass.
• Understand the importance of accuracy in mass measurement.+ Show more

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

• Understand how agents like water, glaciers, wind, and gravity detach and move Sediment.
• Identify the distinctive sedimentary signatures produced by different agents of erosion.
• Describe how transport distance and energy influence grain size and sorting of sediments.+ Show more