Grade 7 Science Worksheets

Learning Objectives

• Define what mitochondria are and their function in energy production.
• Describe the structure of mitochondria and how it relates to their function.
• Explain how mitochondria convert nutrients into energy through cellular respiration.+ Show more

Learning Objectives

• Define what pure substances are and identify their properties
• Differentiate pure substances from mixtures and solutions
• Recognize regional examples of matter classification+ Show more

Learning Objectives

• Explain how energy moves through an ecosystem from producers to consumers and decomposers
• Describe how trophic levels and metabolic processes affect the amount of usable energy available
• Use food-chain and food-web ideas to predict how changes at one trophic level can affect others+ Show more

Learning Objectives

• Describe the main processes involved in the rock cycle
• Identify different types of rocks and how they form
• Explain the role of geological forces such as uplift and erosion+ Show more

Learning Objectives

• Understand the differences between physical changes and chemical changes in matter
• Identify examples of physical changes in everyday life
• Recognize indicators of chemical changes such as color change, gas production, precipitates, and temperature change

Learning Objectives

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

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

• Explain how gravity provides centripetal force to keep objects moving in curved orbits
• Describe why orbits are often elliptical rather than perfect circles
• Connect inertia and changing direction to why bodies remain bound in the solar system+ Show more

Learning Objectives

• Explain how mean, median, and mode describe the center of a data set
• Use interquartile range and variance to describe spread and consistency
• Interpret outliers and small-sample limitations in comparative contexts

Learning Objectives

• Explain the main processes that form igneous, sedimentary, and metamorphic rocks.
• Describe how energy (cooling, heat, pressure) and Earth-surface processes (weathering and deposition) connect in the rock cycle.
• Use the rock cycle to trace how rocks change across geologic time.

Learning Objectives

• Identify physical properties such as density, hardness, and melting point.
• Explain chemical properties like corrosion resistance and reactivity.
• Match material properties to their practical applications.+ Show more

Learning Objectives

• Understand how magma is generated within Earth's mantle and crust.
• Identify the processes that influence magma composition and texture.
• Relate plate tectonic settings to types of magma and igneous rocks.

Learning Objectives

• Understand the basic concept of convection
• Identify natural and forced convection in daily life
• Recognize how temperature differences cause fluid movement+ Show more

Learning Objectives

• Use metric units and prefixes to report measurements with appropriate precision and units.
• Estimate uncertainty by comparing repeated measurements and documenting variability.
• Select suitable measuring tools and calibrate instruments to reduce systematic error.+ Show more

Learning Objectives

• Explain the difference between design criteria and design constraints in a solution design
• Identify examples of measurable criteria and limiting constraints in a real-world problem
• Describe how human needs and environmental impacts influence acceptable design outcomes

Learning Objectives

• Describe how competition, predation, mutualism, and parasitism affect species interactions and ecological niches
• Explain how niche partitioning reduces competition and helps multiple species coexist
• Identify how keystone species influence community composition and stability+ Show more

Learning Objectives

• Understand how data is organized in tables with consistent units and labels.
• Interpret various data representations such as tables and graphs.
• Identify trends, clusters, and relationships within data sets.+ Show more

Learning Objectives

• Explain how transport processes and cellular structures help maintain homeostasis in the body.
• Describe how hormones and transport proteins regulate nutrient levels, ions, and water balance.
• Connect disruptions at the cellular or tissue level to changes in whole-organism stability.

Learning Objectives

• Use balanced chemical equations to relate the mole amounts of reactants and products.
• Solve simple mole-ratio problems to predict relative mass or amount changes in reactions.
• Apply the conservation of atoms to check whether calculated quantities are consistent with a balanced equation.

Learning Objectives

• Understand the structure and function of Earth's lithospheric plates
• Identify and classify different plate boundaries
• Describe how plate movements influence geological activity

Learning Objectives

• Explain how energy moves through trophic levels in a food web and why decomposers matter for energy flow.
• Describe how photosynthesis captures energy and cellular respiration releases energy in living things.
• Use energy pyramids to model the decrease in available energy between trophic levels and relate this to population size.

Learning Objectives

• Explain how digital tools capture, organize, and analyze scientific data (sensors, spreadsheets, and file formats).
• Identify key data concepts such as timestamps, sampling rates, and metadata tags that support interoperability.
• Apply basic data-cleaning ideas (checking integrity, handling missing values, and preserving raw data for reproducibility).

Learning Objectives

• Explain how adaptation traits (structural, physiological, and behavioural) help organisms survive and reproduce in specific environments.
• Describe how selective pressures shape trait variation and how trade-offs can affect survival.
• Connect examples from Alberta habitats to niches and long-term persistence of species.

Learning Objectives

• Describe how structural members respond to applied loads through bending, shear, axial force, and torsion
• Connect bending moment and shear force to deflection and serviceability in beams and cantilevers
• Contrast bending-dominated members with axial-dominated members such as columns and truss bars

Learning Objectives

• Explain how detritivores, fungi, bacteria, and abiotic factors work together during decomposition
• Describe carbon and nitrogen transformations that occur as organic matter breaks down
• Connect decomposition rates to soil fertility and productivity in different ecosystems

Learning Objectives

• Explain what carrying capacity means in an ecosystem.
• Identify limiting factors that control population size over time.
• Describe how populations change when they exceed or fall below carrying capacity.

Learning Objectives

• Explain tradeoffs among freshwater options such as storage, recharge, recycling, and desalination.
• Identify design constraints (quality, infrastructure limits, ecosystem impacts) that affect water-system decisions.
• Use cause-and-effect reasoning to predict how changes in a water system can impact reliability and pollution risk.

Learning Objectives

• Explain how Earth’s axial tilt and orbit change the Sun’s apparent height and daylight length over the year.
• Describe how seasonal patterns differ between the Northern and Southern hemispheres.
• Use evidence-based reasoning to connect solar energy distribution to summer and winter temperatures.

Learning Objectives

• Explain how human activities can affect Earth’s spheres (atmosphere, hydrosphere, biosphere, geosphere).
• Describe how feedbacks can amplify or reduce environmental changes over time.
• Use cause-and-effect reasoning to connect human actions to ecosystem impacts.

Learning Objectives

• Understand the basic quantities used to describe motion: distance, time, and speed.
• Learn how to interpret and represent data related to motion.
• Calculate average speed given distance and time.

Learning Objectives

• Explain how biodiversity can be described using richness, evenness, and habitat heterogeneity.
• Interpret what biodiversity metrics can reveal about ecosystem resilience and function.
• Use evidence from habitat complexity and species assemblages to make ecological health claims.

Learning Objectives

• Explain how design criteria and constraints help frame a design problem.
• Identify measurable or observable indicators of success in a design plan.
• Describe how trade-offs can affect which requirement a solution meets.

Learning Objectives

• Explain the conservation of mass rule for a closed system during physical and chemical changes.
• Use the idea that atoms are conserved to predict whether total mass changes after a reaction in a sealed container.
• Identify key details about reactants, products, and the role of the closed system.

Learning Objectives

• Understand the purpose of model evaluation in scientific predictions.
• Learn how evidence supports or questions model assumptions.
• Interpret computational simulations to see the effect of changing input factors.+ Show more

Learning Objectives

• Explain Newton’s third law using the action-reaction force pair idea
• Identify action-reaction forces in contact and noncontact situations (including gravity)
• Use force and mass reasoning to predict acceleration direction and relative size

Learning Objectives

• Understand the concept of friction and how it affects motion
• Identify different types of friction in everyday situations
• Explain how surface texture influences friction+ Show more

Learning Objectives

• Use the heat equation Q = mcΔT to calculate the thermal energy needed to change a substance’s temperature.
• Explain how specific heat capacity relates heat energy, mass, and temperature change.
• Describe how heat-transfer rate depends on area, temperature gradient, and time.+ Show more

Learning Objectives

• Identify basic components of trusses and their functions
• Outline the principles of internal force distribution within truss structures
• Recognize common truss forms used in bridges and roofs+ Show more

Learning Objectives

• Explain how physical and chemical properties help predict whether substances will react.
• Use evidence of chemical change (new substances, gas, color change, temperature change) to justify predictions.
• Identify likely reaction outcomes by applying trends in reactivity, acid–base behavior, flammability, and solubility.

Learning Objectives

• Define what a closed system is in scientific terms.
• Explain why mass appears to stay constant in a closed system during reactions.
• Distinguish between open and closed systems based on matter transfer.+ Show more

Learning Objectives

• Understand how test results guide design modifications for improved performance.
• Identify specific weaknesses based on data and suggest targeted changes.
• Explain how evidence from results connects to design decisions and improvements.+ Show more

Learning Objectives

• Explain how cell structures match specific cell functions.
• Identify examples of specialized cells and describe what makes each one effective.
• Relate cell specialization to how tissues and organs perform their tasks.

Learning Objectives

• Describe the Earth system spheres (atmosphere, hydrosphere, geosphere, biosphere) and how they interact
• Explain how movement of water and gases connects the spheres and affects weather and ecosystems
• Predict how a change in one sphere can cause effects in other spheres

Learning Objectives

• Explain the mechanisms of heat transfer: conduction, convection, and radiation.
• Relate energy transfer processes to observable phenomena such as metal heating rates and radiant warming.
• Understand how temperature gradients, specific heat, and phase changes influence thermal energy flow.+ Show more

Learning Objectives

• Explain the principle of conservation of mass at the particle level in chemical reactions.
• Describe how atoms are conserved and rearranged during chemical processes.
• Recognize that in a closed system, the total mass remains the same before and after a reaction.+ Show more

Learning Objectives

• Understand the relative sizes of planets in the solar system
• Learn about astronomical units, light-years, and planetary diameters
• Recognize how scale affects our perception of space phenomena+ Show more

Learning Objectives

• Explain how fair testing keeps all conditions the same except the intended design variable.
• Choose appropriate measurement tools and describe measurements using correct units and scales.
• Interpret results by attributing differences to the design rather than to the testing setup.

Learning Objectives

• Identify inputs, outputs, and energy transfers in an energy system model.
• Explain how energy accounting reflects conservation of energy.
• Interpret simple energy flow ideas using useful output energy and waste heat.