Grade 7 Science Worksheets

Learning Objectives

• Define empirical knowledge and explain its role in scientific investigations.
• Identify evidence through observation and measurement.
• Understand how scientific explanations are supported or revised based on evidence.+ Show more

Learning Objectives

• Understand how test data influences design improvements.
• Learn to interpret quantitative data for design decisions.
• Apply iterative adjustments to optimize design parameters.+ Show more

Learning Objectives

• Understand how to systematically evaluate different design solutions using modeling and analysis.
• Identify and quantify trade-offs among performance, cost, durability, and manufacturability.
• Apply consistent metrics and model-based reasoning to compare options and recognize limitations.+ Show more

Learning Objectives

• Understand the concept of ecological inquiry and its importance.
• Learn how to formulate scientific questions about ecosystems.
• Identify measurable variables in ecological studies.+ Show more

Learning Objectives

• Understand how plate tectonics cause earthquakes and volcanic activity.
• Identify evidence of geologic processes like faults and lava flows.
• Explain how Earth's surface changes over time through natural processes.

Learning Objectives

• Understand the formation process of igneous rocks from cooled magma or lava.
• Identify the environments where igneous rocks can form.
• Describe the stages involved in the formation of igneous rocks through cooling and solidification.+ Show more

Learning Objectives

• Explain how habitat fragmentation creates isolated habitat patches and increases edge effects
• Describe how fragmentation affects species interactions, dispersal, gene flow, and population sizes
• Evaluate how habitat connectivity (like corridors) can reduce extinction risk and support ecosystem processes

Learning Objectives

• Explain the transfer of energy through trophic levels in ecosystems.
• Identify the roles of producers, consumers, and decomposers in energy pyramids.
• Describe how photosynthesis and cellular respiration are mechanisms for energy capture and release.+ Show more

Learning Objectives

• Understand how nonliving factors like temperature, light, water, soil, and salinity affect ecosystems.
• Explain how abiotic gradients and microclimates influence species distribution and community structure.
• Identify examples of abiotic factors from terrestrial and aquatic environments that impact biodiversity.

Learning Objectives

• Explain how optimization metrics help compare design choices under constraints.
• Identify common optimization metrics such as strength-to-weight ratio, operating cost, and energy conversion efficiency.
• Use evidence from a scenario to choose improvements that best meet explicit targets.

Learning Objectives

• Describe the main physical and chemical processes that shape Earth's surface.
• Identify observable landforms associated with weathering, erosion, deposition, and mass wasting.
• Explain the driving forces such as water flow, wind, glaciers, and gravity in surface processes.+ Show more

Learning Objectives

• Explain diffusion using the particle model and concentration gradients.
• Describe how mixing occurs without requiring particles to stop moving or change into new substances.
• Predict how temperature affects the rate of diffusion and mixing.+ Show more

Learning Objectives

• Construct and interpret graphs that relate kinetic energy to speed and mass
• Use quantitative patterns (including doubling) to predict changes in kinetic energy
• Connect stored potential energy to future motion and compare energy types

Learning Objectives

• Define what constitutes a design problem by identifying clear criteria and constraints.
• Recognize real-world examples of specifying success measures and limitations.
• Translate societal and environmental needs into measurable targets for project development.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how internal processes (uplift, deformation, earthquakes, volcanism) can change Earth’s surface
• Describe how external processes (erosion and deposition by water and wind) shape landforms
• Identify evidence of past surface processes using rock strata, landform patterns, and hazard history

Learning Objectives

• Understand different management strategies for maintaining biodiversity and ecosystem services.
• Evaluate the benefits and potential unintended consequences of habitat corridors and protected areas.
• Compare ecological, economic, and social trade-offs in biodiversity conservation approaches.+ Show more

Learning Objectives

• Distinguish biotic factors from abiotic factors in an ecosystem
• Explain how abiotic conditions influence which organisms can survive
• Describe how changes in abiotic factors can affect biotic interactions and population sizes+ 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

• Explain how energy moves through trophic levels in a food web
• Describe why only a fraction of energy is available to the next trophic level
• Predict how changes in trophic position affect biomass and food-chain length+ Show more

Learning Objectives

• Understand the concept of plate tectonics and continental movement
• Identify geologic evidence supporting plate movements
• Explain the significance of seafloor features like mid-ocean ridges and trenches+ Show more

Learning Objectives

• Interpret variability and reliability by comparing range, mean, and median in experimental data.
• Read graphical displays (box plots and histograms) to describe spread, center, and potential skew.
• Identify misleading representations caused by scale choices, missing information, or non-comparable data.

Learning Objectives

• Explain independent, dependent, and controlled variables using operational definitions.
• Design a fair test by identifying variables, using consistent measurement criteria and timing, and minimizing bias.
• Describe how replication and control groups help reduce confounding and improve causal conclusions.

Learning Objectives

• Compare and explain atomic models using particle, ball-and-stick, and lattice representations.
• Relate subatomic particles and atomic number to formula notation for simple substances.
• Distinguish molecular structures from extended network (lattice) structures and predict material behavior.

Learning Objectives

• Identify the main parts of the digestive system
• Describe the functions of digestive organs
• Understand how internal structures support organism survival+ Show more

Learning Objectives

• Identify observable signs indicating a chemical reaction has occurred.
• Describe examples of chemical reactions involving gas production, precipitate formation, color change, temperature change, and irreversibility.
• Explain how mass measurements in sealed systems demonstrate conservation of mass during reactions.+ Show more

Learning Objectives

• Explain how supports, foundations, and load paths help structures stay stable under common forces.
• Identify compression, tension, and shear and describe how each affects parts of beams, columns, and foundations.
• Use material properties (stiffness, strength, durability) to evaluate structural safety for typical Alberta wind and snow loads.

Learning Objectives

• Explain the difference between a hazard and a risk during laboratory or field activities.
• Describe how to use an SDS to identify hazards and select appropriate controls.
• Evaluate potential hazards by considering likelihood and severity and choosing mitigation strategies.+ Show more

Learning Objectives

• Identify gases produced during chemical reactions
• Describe observable signs of gas emissions
• Recognize different gases based on reaction clues+ Show more

Learning Objectives

• Compare thermal conductivity qualitatively across metals, ceramics, polymers, and composites
• Explain how free electrons and lattice vibrations contribute to heat transfer in different materials
• Analyze how density, porosity, and moisture affect a material’s effective thermal conductivity+ Show more

Learning Objectives

• Explain how energy transfer causes changes of state between solid, liquid, and gas using the particle model
• Describe what happens to particle motion and particle arrangement during melting, freezing, evaporation, and condensation
• Interpret phase-change information to predict temperature behavior during energy transfer

Learning Objectives

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

Learning Objectives

• Compare scaled physical models, digital finite-element models (FEM), and laboratory load rigs for evaluating strength, stiffness, and failure modes.
• Explain how instrumentation such as strain gauges and displacement transducers are used to quantify structural response.
• Identify limitations of scaling and describe how prototype test results can guide design revisions and risk assessment.

Learning Objectives

• Understand the concept of mantle convection and its role in plate movement.
• Identify different force mechanisms driving plate tectonics.
• Explain how convection cells influence Earth's surface features.

Learning Objectives

• Explain how cooling air leads to cloud formation through condensation and deposition.
• Describe how temperature and moisture conditions determine whether precipitation is rain, snow, sleet, or hail.
• Connect energy changes during phase transitions to local weather patterns.

Learning Objectives

• Understand the basic factors influencing population size
• Identify how births, deaths, immigration, and emigration affect populations
• Explore the impact of limiting factors such as resource scarcity and predator-prey relationships+ Show more

Learning Objectives

• Identify and describe the three main states of matter: solid, liquid, and gas.
• Understand phase changes such as melting, freezing, vaporization, condensation, and sublimation.
• Relate temperature and pressure influences to phase transition points and measurable properties.

Learning Objectives

• Identify the role of producers in ecosystems
• Describe how producers convert sunlight into food
• Differentiate between producers and consumers+ Show more

Learning Objectives

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

Learning Objectives

• Explain what a tradeoff is when comparing competing engineering design options.
• Identify how criteria and constraints guide which design improvements are acceptable.
• Use tradeoff mapping to justify a design choice using evidence and limits.

Learning Objectives

• Understand how plate tectonics shape Earth's surface through various geological features and processes.
• Identify different landforms and features caused by tectonic movements, volcanic activity, and surface weathering.
• Recognize evidence that connects geological processes to present-day landforms.

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter and how abiotic factors affect decomposition rates.
• Describe how carbon and nitrogen move and transform during decomposition (including formation of detritus, mineralization, and nutrient uptake).
• Connect decomposition rates to soil fertility and ecosystem productivity in wetlands, forests, and grasslands.

Learning Objectives

• Identify independent, dependent, and controlled variables in a science investigation
• Explain why controlled variables make comparisons fair
• Use tables and graphs to connect changes in the dependent variable to the independent variable

Learning Objectives

• Explain how density, strength (tensile and compressive), stiffness (modulus), ductility, toughness, and thermal expansion affect how materials behave under load and temperature changes.
• Use material-property reasoning to compare wood, steel, and reinforced concrete in terms of strength-to-weight, deformation, and typical failure modes.
• Connect beam and column performance to property selection for serviceability, durability, and anticipated loading conditions.

Learning Objectives

• Explain how matter cycles through ecosystems using carbon, nitrogen, and phosphorus examples.
• Describe the key processes that move nutrients between air, living things, and soil (photosynthesis, respiration, decomposition, and bacterial transformations).
• Analyze how nutrient availability can limit plant growth and affect ecosystem productivity.

Learning Objectives

• Explain how biodiversity helps ecosystems remain stable after disturbances.
• Describe how overlapping ecological roles can buffer the loss of a species.
• Identify examples of disturbances that reduce biodiversity and increase ecosystem vulnerability.

Learning Objectives

• Explain how gravitational potential energy changes into kinetic energy during motion in a mechanical system
• Use mass, height (elevation), and speed to reason about relative mechanical energy and forces
• Describe how energy conservation applies when friction is small and how real systems differ+ Show more

Learning Objectives

• Define and compare key material properties (density, tensile/compressive strength, stiffness, ductility, toughness, and thermal expansion).
• Explain how material properties affect structural behavior such as deformation, cracking, and failure modes.
• Relate property selection to loading conditions and structural performance using wood, steel, and reinforced concrete examples.