Grade 7 Science Worksheets

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

• Understand the process of systematically evaluating different design solutions.
• Apply modeling and comparative analysis techniques to assess trade-offs.
• Identify and quantify factors such as performance, cost, durability, and manufacturability.+ Show more

Learning Objectives

• Explain the difference between accuracy and uncertainty in scientific measurements
• Identify how tool resolution and repeated trials affect measurement uncertainty
• Use uncertainty ranges to judge whether differences in results are meaningful

Learning Objectives

• Understand the concept of variables in scientific investigations
• Identify independent, dependent, and controlled variables in experiments
• Learn how to plan experiments by controlling variables and measuring key evidence

Learning Objectives

• Analyze test data to assess the performance of design parameters.
• Refine and adjust design variables based on quantitative comparisons.
• Apply iterative problem-solving methods to improve design features within constraints.+ Show more

Learning Objectives

• Identify observable signs of chemical change such as gas formation, color change, temperature change, precipitate formation, and irreversible transformation.
• Understand that multiple indicators together provide stronger evidence of a chemical change than any single sign.
• Recognize how measurements and observations confirm chemical reactions occurring.+ Show more

Learning Objectives

• Understand how friction opposes motion and affects objects on different surfaces.
• Explain the role of gravity as a force pulling objects toward planetary surfaces.
• Differentiate between contact forces and long-range forces, with observable effects.+ Show more

Learning Objectives

• Understand the different types of plate boundaries and their effects on Earth's surface.
• Identify the geological features associated with divergent, convergent, and transform boundaries.
• Explain how plate movements influence earthquakes, volcanoes, and mountain formation.+ Show more

Learning Objectives

• Analyze how human population growth and consumption influence demand for water, energy, land, and resources.
• Evaluate the environmental consequences of increased population and resource use, including biodiversity loss and carbon emissions.
• Compare regional examples to understand how consumption patterns affect ecosystems and resource cycles.+ Show more

Learning Objectives

• Explain how human activities can alter Earth system interactions across the atmosphere, biosphere, and geosphere
• Describe positive and negative feedbacks using examples from temperature, water cycle, erosion, and ecosystems
• Use cause-and-effect reasoning to predict how changes in one part of a system can influence other parts

Learning Objectives

• Understand that solution concentration quantifies the amount of solute relative to solvent.
• Identify common measures of concentration such as mass percent and grams per litre.
• Explain how concentration affects physical properties like boiling point and freezing point.+ Show more

Learning Objectives

• Explain how heating increases particle kinetic energy and spacing, causing thermal expansion in solids and liquids.
• Describe how cooling decreases particle motion and can lead to contraction.
• Predict how temperature changes can affect gas pressure in confined spaces.

Learning Objectives

• Understand the criteria used to evaluate design solutions.
• Identify constraints and tradeoffs in technical testing.
• Interpret test results to determine design success or failure.+ Show more

Learning Objectives

• Understand the purpose and applications of systems modeling in analyzing complex systems.
• Identify different types of models such as diagrams, schematics, and scale models.
• Recognize the assumptions, simplifications, and scaling effects involved in modeling.+ Show more

Learning Objectives

• Define what a scientific model is and explain its purpose.
• Identify different types of models used in science, such as conceptual and computational models.
• Describe the process of abstraction, assumption identification, and scaling in modeling.+ Show more

Learning Objectives

• Identify the parts of a scientific evidence argument: observation, evidence, claim, and reasoning
• Use data values or graph features to connect evidence to a claim
• Evaluate whether an argument is supported by evidence and scientific principles, not unsupported cause-and-effect+ Show more

Learning Objectives

• Explain how evidence supports a scientific claim using a clear chain from observations to reasoning.
• Identify when an argument uses specific data values, graph features, or direct observations rather than unsupported statements.
• Revise scientific arguments to improve accuracy by addressing limitations and avoiding incorrect cause-and-effect claims.

Learning Objectives

• Distinguish speed, velocity, and acceleration using everyday motion examples.
• Classify quantities as scalars or vectors and explain why direction matters for velocity.
• Interpret motion scenarios qualitatively and relate displacement, time, and rate of change.

Learning Objectives

• Classify substances as elements, compounds, or mixtures based on composition and uniformity
• Explain the differences between pure substances and mixtures using observable properties
• Identify examples of pure substances and mixtures in everyday contexts and justify the classification

Learning Objectives

• Understand how the Sun influences Earth's climate patterns.
• Identify the main components affecting climate: energy, ocean processes, and atmospheric circulation.
• Recognize short-term weather versus long-term climate patterns.+ Show more

Learning Objectives

• Describe how ecological models represent relationships among ecosystem components using simplified variables and assumptions
• Distinguish between conceptual and quantitative ecological models and explain how each is used to predict outcomes
• Identify common model inputs and limitations, and explain why model predictions should be checked against real observations

Learning Objectives

• Explain how matter (atoms) is conserved as it moves through organisms during digestion, biosynthesis, and respiration
• Trace how carbon and nitrogen from food become cellular macromolecules and then return to the environment as CO2 or nitrogenous waste
• Use biochemical vocabulary (macromolecule, digestion, respiration) to describe transformation of atoms across living systems

Learning Objectives

• Explain how gravity, electric, and magnetic forces can act at a distance without direct contact.
• Describe the qualitative relationship between gravity and mass and between gravity and distance.
• Identify when electric and magnetic forces can be attractive or repulsive using real-world examples.

Learning Objectives

• Understand the criteria for formulating scientific questions and hypotheses.
• Recognize the importance of operational definitions, variables, and reproducibility in experiments.
• Learn basic laboratory safety protocols including PPE, chemical labeling, and emergency signage.+ Show more

Learning Objectives

• Explain how traditional ecological knowledge (TEK) uses observation, classification, and seasonal patterns to support environmental understanding
• Describe how oral histories and place-based knowledge help people interpret species interactions and habitat indicators
• Compare how Indigenous and scientific knowledge systems can complement each other when studying long-term ecosystem change

Learning Objectives

• Explain how nutrients cycle through ecosystems and why matter is reused.
• Describe the major processes that move carbon, nitrogen, and phosphorus between organisms and the environment.
• Identify how nutrient availability can limit plant productivity.

Learning Objectives

• Understand the concept of filtration as a separation technique.
• Identify different physical properties used to separate mixtures.
• Apply knowledge of filtration to real-world water purification scenarios.+ Show more

Learning Objectives

• Explain how the nucleus stores genetic material and controls cell activities.
• Describe how chromosomes, genes, and nuclear envelope/nuclear pores support gene expression and protein synthesis.
• Analyze how changes in nuclear function can affect cell division and differentiation.

Learning Objectives

• Explain saturation and unsaturated states in terms of dissolved solute at a given temperature and pressure.
• Describe what happens when more solute is added to a saturated solution and why crystals may form.
• Interpret supersaturation as a temporary condition that can lead to sudden precipitation.+ Show more

Learning Objectives

• Understand the fundamental components that define populations.
• Analyze factors affecting population size and distribution.
• Interpret demographic data and metrics related to populations.+ Show more

Learning Objectives

• Understand various conservation strategies used to protect ecosystems.
• Identify methods for habitat restoration, species management, and policy implementation.
• Explain how food webs, population dynamics, and abiotic factors influence conservation efforts.+ Show more

Learning Objectives

• Understand what chemical properties are and how they describe a substance's reactions.
• Identify different chemical properties such as flammability, reactivity with acids or bases, oxidation, and pH behavior.
• Predict reaction outcomes based on observable chemical property evidence.+ Show more

Learning Objectives

• Understand how cells organize into tissues, organs, and systems.
• Identify different tissue types and their functions.
• Explain the role of tissues in supporting organism activities.+ Show more

Learning Objectives

• Understand how internal systems support animal survival
• Identify external features that protect and aid animals
• Explain how traits improve resource acquisition and reproduction

Learning Objectives

• Understand various conservation strategies used to protect ecosystems and biodiversity.
• Identify key components such as habitat protection, restoration, and species management.
• Explain how adaptive approaches respond to changing environmental conditions.+ Show more

Learning Objectives

• Explain how balanced forces lead to zero net force and constant velocity.
• Describe how unbalanced forces produce nonzero net force and acceleration.
• Use a tug-of-war scenario to predict how motion changes when forces differ.

Learning Objectives

• Define and explain various physical properties including mass, volume, density, melting and boiling points, electrical conductivity, and optical clarity.
• Link macroscopic measurements to molecular structure and intermolecular forces.
• Demonstrate how density differentiates substances and how phase-change temperatures indicate purity.+ Show more

Learning Objectives

• Explain the origins and formation processes of the solar system.
• Identify key properties of planets, including atmospheres, geology, and orbital characteristics.
• Describe phenomena such as planetary phases, eclipses, and axial tilts based on observational data.

Learning Objectives

• Understand how microscopic particle motion relates to temperature and thermal energy.
• Explain how particle speed distributions differ with temperature variations in Alberta's air masses.
• Describe the connection between particle motion and macroscopic heat transfer processes.

Learning Objectives

• Explain how gravity and water-driven forces move Earth's surface material during mass wasting and coastal erosion.
• Describe how saturation from prolonged rain can destabilize slopes and trigger landslides.
• Compare ways waves and storm surge reshape coastlines by removing sand and changing shoreline shape.

Learning Objectives

• Understand how mathematical and statistical tools are used to analyze evolutionary processes.
• Apply concepts like allele frequency, Hardy-Weinberg equilibrium, and population dynamics to real data.
• Interpret graphical displays of fitness and trait changes over time.+ Show more

Learning Objectives

• Describe the four main tissue types and their functions.
• Identify examples of each tissue type in the human body.
• Explain how tissue organization affects organ function.+ Show more

Learning Objectives

• Differentiate between open and closed systems by identifying whether matter can cross the system boundary
• Use the idea of mass conservation to explain how rearrangement of particles affects mass in a closed system
• Predict and interpret observed mass changes when gases or dissolved substances can enter or leave a system

Learning Objectives

• Identify key details about freshwater reservoirs and their roles in the water cycle
• Explain how rivers, lakes, ice, and groundwater store and move water
• Use text structure clues to connect processes to resource availability

Learning Objectives

• Understand the concept of conservation of mass in closed systems.
• Explain how different phases and gases influence mass measurements.
• Identify factors affecting the accuracy of mass measurements during transformations.+ Show more

Learning Objectives

• Identify different signs indicating chemical and physical changes based on reading and observation.
• Understand how to differentiate between physical and chemical changes using evidence.
• Describe observable signs such as gas formation, color change, temperature change, precipitate formation, and irreversible transformation.

Learning Objectives

• Describe the primary functions of the four tissue types: epithelial, connective, muscle, and nervous tissue.
• Identify examples and locations of each tissue type in the human body.
• Explain how tissue types work together within organs to perform specific functions.+ Show more

Learning Objectives

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