Grade 7 Science Worksheets

Learning Objectives

• Describe the principle of conservation of matter during chemical reactions.
• Explain how atoms are rearranged but not destroyed in reactions.
• Identify examples of conservation of mass in everyday observations.

Learning Objectives

• Understand the process of photosynthesis and how plants convert sunlight into chemical energy.
• Identify the key components involved in photosynthesis such as light, carbon dioxide, water, and sugars.
• Recognize the importance of photosynthesis in supporting ecosystems and energy transfer among organisms.

Learning Objectives

• Define net force and explain how it affects motion.
• Differentiate between balanced and unbalanced forces.
• Describe how forces can change the velocity of an object.

Learning Objectives

• Understand how matter cycles through ecosystems via different nutrient pathways.
• Identify the roles of carbon, nitrogen, and phosphorus in nutrient cycling.
• Explain processes such as photosynthesis, respiration, decomposition, and bacterial transformations.+ Show more

Learning Objectives

• Explain how unequal solar heating and Earth’s rotation drive global atmospheric circulation patterns (cells, winds, and the Coriolis effect).
• Describe how large-scale ocean gyres and major currents redistribute heat and influence regional climate.
• Connect circulation features to expected patterns in precipitation and temperature.

Learning Objectives

• Understand the concept of optimization and how criteria guide decision-making.
• Identify different measures used in optimization such as strength-to-weight ratio, cost, and energy efficiency.
• Explain how tradeoffs are weighed in optimization processes.+ Show more

Learning Objectives

• Explain how air masses with different temperatures and moisture levels interact to form fronts.
• Describe how air rises, cools, and condenses near a front to increase clouds and precipitation.
• Interpret how wind shifts and temperature changes can signal a front moving through an area.

Learning Objectives

• Explain how non-native species can harm native ecosystems through competition, altered food webs, and habitat changes.
• Describe common pathways for how invasive species are introduced and why some become established.
• Evaluate how long-term ecological and economic effects increase management needs.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how friction affects whether forces balance or are unbalanced.
• Predict how changing friction changes motion (constant speed, speeding up, or slowing down).
• Describe how surface texture influences friction and stability.

Learning Objectives

• Understand the different types of friction: static and kinetic.
• Identify examples of friction in everyday life.
• Explain how surface texture and normal force affect friction.+ Show more

Learning Objectives

• Explain how iterative testing and quantitative comparison improve a design within fixed constraints.
• Identify key design-optimization variables such as performance metrics, constraints, and predictive models.
• Use data to justify parameter refinements and interpret improvements in real-world engineering contexts.

Learning Objectives

• Explain how evidence is used to evaluate whether a model’s predictions match real-world observations.
• Identify reasons a model might disagree with data and describe how assumptions could be adjusted.
• Use simulation results to determine which input changes most affect model outputs.

Learning Objectives

• Explain how human activities can shift interactions among Earth’s spheres and the water cycle.
• Identify positive and negative feedback examples involving temperature, precipitation, erosion, and water quality.
• Use evidence from text and science ideas to predict how environmental changes can reinforce or reduce further change.

Learning Objectives

• Explain how natural processes and human use affect the availability of land, water, and air resources.
• Describe how precipitation patterns and groundwater storage influence access to freshwater.
• Evaluate how droughts, floods, and human demand can change ecosystem stress and resource availability.

Learning Objectives

• Define equilibrium as the state where the net force on an object is zero.
• Differentiate between static and dynamic equilibrium.
• Identify forces such as normal, gravitational, and tension in objects at equilibrium.+ Show more

Learning Objectives

• Distinguish independent, dependent, and controlled variables in a science investigation.
• Connect an investigation question to measurable evidence using clear units and repeated measurement.
• Describe how controlling variables improves the fairness and reliability of results.

Learning Objectives

• Describe how gravity loads, lateral loads, and dynamic loads travel through structural members to foundations using load paths.
• Identify primary vs. secondary load routes and explain how redundancy helps prevent collapse.
• Explain how openings, re-entrant corners, and irregular geometry can change stiffness and redistribute loads.

Learning Objectives

• Identify examples of physical changes
• Differentiate between physical and chemical changes
• Observe indicators of chemical reactions+ Show more

Learning Objectives

• Describe the process of orogeny and how tectonic plates contribute to mountain building.
• Identify key features of mountain belts formed through crustal shortening and uplift.
• Explain the role of subduction zones and volcanic arcs in orogenic complexity.+ Show more

Learning Objectives

• Understand the fundamentals of engineering design processes.
• Identify problem constraints and define clear specifications.
• Learn how to evaluate solutions using trade-off considerations.+ Show more

Learning Objectives

• Explain how standard units and instrument choice affect measurement accuracy and precision.
• Read scales correctly and report results using significant figures.
• Differentiate systematic and random error and describe how each affects measurements.+ Show more

Learning Objectives

• Explain how water moves through the water cycle among the atmosphere, land, and oceans
• Describe energy and gravity roles in evaporation, condensation, and precipitation
• Differentiate runoff from infiltration and subsurface storage+ Show more

Learning Objectives

• Evaluate different management strategies for maintaining biodiversity and ecosystem services.
• Analyze case examples of wetland restoration and corridor establishment.
• Assess the ecological, economic, and social trade-offs involved in biodiversity management.+ Show more

Learning Objectives

• Explain how kinetic and potential energy are related through energy transfer in mechanical systems.
• Use conservation of mechanical energy to predict how changes in height, mass, and speed affect motion (ignoring friction).
• Describe how safety and structural loading depend on how energy changes with speed and elevation.

Learning Objectives

• Define physical change and identify its signs
• Recognize examples of physical changes in daily life
• Differentiate between physical and chemical changes+ Show more

Learning Objectives

• Interpret patterns in graphs such as scatter plots, histograms, and line graphs to support scientific claims
• Use summary measures (range and averages) to compare data sets and describe variability
• Evaluate outliers and explain how uncertainty or random variation affects conclusions

Learning Objectives

• Explain how internal transport moves materials from where they are obtained to where cells need them.
• Describe how the body removes unusable materials to prevent harmful buildup.
• Use models and vocabulary to connect digestion, circulation, and waste removal.

Learning Objectives

• Identify key details of standardized fixed-site survey protocols
• Explain how consistent sampling helps detect ecological change over time
• Use vocabulary from monitoring methods (fixed-site, point count, replicate, quality control) to interpret results

Learning Objectives

• Explain how the geosphere, hydrosphere, atmosphere, and biosphere interact through matter and energy transfer.
• Describe cause-and-effect relationships between changes in one Earth system and outcomes in another system.
• Use evidence from examples (erosion, precipitation, photosynthesis) to predict how Earth systems can influence water availability and landforms.

Learning Objectives

• Explain what net force of zero means for an object’s motion
• Identify static and dynamic equilibrium using examples
• Interpret force pairs qualitatively to predict stable and changing motion+ Show more

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 birth rate, death rate, immigration, and emigration affect population size over time.
• Describe how resource availability and abiotic constraints influence where populations can persist.
• Interpret population trend ideas to explain local extirpations or expansions.+ Show more

Learning Objectives

• Describe how ecological models represent ecosystem relationships using inputs, assumptions, and outputs.
• Identify the difference between qualitative and quantitative modelling approaches.
• Explain why model predictions must be checked against real observations.+ Show more

Learning Objectives

• Describe how ecological organization moves from individuals to populations, communities, and ecosystems
• Identify patterns that appear at higher levels that cannot be explained by single organisms alone
• Compare properties of populations, communities, and ecosystems using a local river example+ Show more

Learning Objectives

• Explain how to frame an ecological question and form a testable hypothesis
• Identify measurable variables and describe how data supports or challenges a hypothesis
• Interpret ecological data while accounting for natural variability+ 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

• Compare scaled physical models, digital finite-element models, and laboratory load rigs for evaluating strength, stiffness, and failure modes.
• Explain how instrumentation such as strain gauges and displacement transducers measures structural response.
• Describe limitations of prototyping, especially scaling effects on joints and material heterogeneity.+ Show more

Learning Objectives

• Explain how net force affects an object’s velocity over time
• Distinguish between balanced and unbalanced forces based on motion
• Describe how friction, air resistance, and gravity influence motion near Earth

Learning Objectives

• Explain how inherited traits are passed from parents to offspring through genetic information carried in reproductive cells
• Describe how variation among parents can lead to observable differences in offspring
• Identify examples of inherited traits and relate them to heritable factors such as blood type, seed shape, or fur color

Learning Objectives

• Identify key details about cold tolerance adaptations in boreal animals.
• Summarize how an adaptation helps an animal survive and reproduce in cold environments.
• Explain how variation in traits can change in populations across generations through selection.

Learning Objectives

• Understand the concept of individual organisms and their traits.
• Identify different levels of ecological organization from individuals to ecosystems.
• Recognize examples of ecological levels in Alberta, such as trout and river ecosystems.+ Show more

Learning Objectives

• Explain how walls, roofs, windows, and foundations affect heat loss and heat gain through conduction, air leakage, and radiation.
• Identify how thermal bridging and air infiltration reduce the effectiveness of insulation and air barriers.
• Use common indicators (R-value, U-value, and air changes per hour) to describe building envelope performance.+ Show more

Learning Objectives

• Explain how heating and cooling affect material properties such as length, density, and viscosity.
• Connect microscopic particle motion to macroscopic changes in volume, pressure, and fluid behavior.
• Describe how phase changes (melting/freezing) depend on temperature and influence everyday systems.+ Show more

Learning Objectives

• Identify different environments where deposition occurs
• Describe landforms created by deposition such as deltas, dunes, moraines, and floodplains
• Explain how sediments are layered and what they reveal about flow regimes+ Show more

Learning Objectives

• Explain how matter and energy move through ecosystems using producers, consumers, and decomposers
• Describe how energy transfers through food chains and food webs and why less energy reaches higher trophic levels
• Connect the roles of metabolism and heat loss to patterns of energy flow in ecosystems+ Show more

Learning Objectives

• Explain how gravity affects the motion of objects near Earth.
• Distinguish mass from weight using the role of gravitational force.
• Describe how falling objects gain speed over time due to a net downward force.

Learning Objectives

• Understand the mechanisms of heat transfer: conduction, convection, and radiation
• Identify examples of thermal conduction in everyday life
• Explain how heat flows from warmer to cooler objects+ Show more