Grade 7 Science Worksheets

Learning Objectives

• Understand how to calculate average speed using distance and time data.
• Distinguish between average speed and instantaneous speed through examples.
• Convert speed units between meters per second and kilometers per hour.+ Show more

Learning Objectives

• Explain how fitness relates to survival and reproduction in a specific environment
• Describe how natural selection can favor different traits when selection pressures change
• Connect heritable variation to how populations can change over time

Learning Objectives

• Understand the process of technological innovation and its historical development.
• Identify factors that facilitate invention and innovation across different technological lineages.
• Analyze the causes and diffusion of inventions and innovations over time.+ Show more

Learning Objectives

• Explain how population growth and increased per-capita consumption change demand for water, energy, land, and raw materials
• Describe how these demands can affect ecosystems, biodiversity, and freshwater availability
• Use quantitative relationships (population, urbanization, waste, and resource use) to predict environmental impacts

Learning Objectives

• Explain how abiotic and biotic disturbances can change population sizes and community composition
• Compare resistance, resilience, and succession as mechanisms that shape ecosystem recovery
• Interpret longitudinal observations to connect population trends to specific disturbance causes

Learning Objectives

• Classify substances as elements, compounds, or mixtures based on composition and uniformity
• Distinguish pure substances from mixtures using fixed composition and consistent properties versus variable composition and properties
• Explain how identifying a material helps with everyday selection and safe use

Learning Objectives

• Explain what an air mass is and how its temperature and moisture affect weather
• Describe how fronts form when different air masses meet
• Compare cold fronts and warm fronts in terms of lifting, clouds, and precipitation

Learning Objectives

• Explain how density differences allow mixtures to be separated using decanting, flotation, and centrifugation.
• Describe how buoyant force, sedimentation rate, and centrifugal acceleration relate to particle size and density contrast.
• Choose an appropriate density-separation method by comparing what each method uses (gravity, buoyancy, or acceleration).

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures using observable evidence
• Select appropriate separation methods (filtration, distillation, chromatography, magnetic separation) based on property differences
• Explain how solubility, particle size, and boiling point differences lead to observable separated fractions

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

• Understand key technologies used in space exploration such as telescopes, satellites, and spacecraft propulsion.
• Identify historical missions and their contributions to space science.
• Explain how robotic missions and space stations gather data about extraterrestrial environments.+ 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

• Explain how natural selection works using the ideas of heritable variation and differential survival and reproduction
• Describe how natural selection changes allele frequencies over many generations
• Use real-world examples (such as antibiotic resistance) to illustrate natural selection+ Show more

Learning Objectives

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

Learning Objectives

• Distinguish ionic and covalent bonding using particle-level evidence (ions vs. electron sharing).
• Relate bonding type to macroscopic properties such as melting point, solubility, and electrical conductivity.
• Use empirical formula ideas to explain simple formation of binary ionic salts and molecular compounds.+ 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 energy is transferred through food webs and the limitations of energy transfer between trophic levels.
• Explain why food chains typically have only a few trophic levels due to energy loss.
• Describe the role of biomass and energy transfer efficiency in predator-prey relationships.+ Show more

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

• Explain how particle motion changes material size with temperature
• Describe how thermal expansion affects structural design and safety
• Explain melting and freezing as temperature-dependent phase changes+ 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

• Understand the process by which producers convert light energy into chemical energy during photosynthesis.
• Identify the key components and reactants involved in photosynthesis.
• Explain how energy and matter flow through ecosystems via photosynthesis and food chains.+ Show more

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 resource availability and competition influence population growth rates
• Interpret logistic growth curves and the concept of carrying capacity
• Relate birth, death, immigration, and emigration to changes in population size

Learning Objectives

• Define population dynamics and growth models
• Identify factors that limit population growth
• Differentiate between density-dependent and density-independent factors+ Show more

Learning Objectives

• Define kinetic energy and potential energy using everyday examples.
• Explain how height and motion relate to stored energy and moving energy.
• Describe energy transfer between objects in a system using qualitative 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

• Identify independent, dependent, and controlled (constant) variables in a science investigation.
• Select appropriate control groups and explain why they are necessary for valid comparisons.
• Describe how replication, randomization, and blocking reduce confounding influences.+ Show more

Learning Objectives

• Identify different landforms created by tectonic activity
• Understand how tectonic movements shape Earth's surface
• Learn about the processes of weathering, erosion, and deposition+ Show more

Learning Objectives

• Explain how gravitational force, weight, and inertia relate to motion near Earth
• Differentiate gravity from support forces (normal forces) and describe when they balance or do not balance
• Use Newton’s ideas of net force to predict how objects move when support forces change

Learning Objectives

• Identify the key components of a building envelope: walls, roofs, windows, and foundations.
• Understand the role of insulation and barriers in maintaining thermal efficiency.
• Recognize the importance of ventilation and sealing techniques in reducing heat loss.+ 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 the role of reflective and emissive surface properties in managing radiative heat exchange.
• Describe how surface albedo and emissivity affect solar heat gain and loss.
• Identify examples of low-emissivity glazing and reflective roofs and their impact on building energy efficiency.+ Show more

Learning Objectives

• Select an appropriate graph type for categorical and continuous data and explain why it fits the data.
• Construct and interpret graphs using correct axis scaling, proportional representation, and clear labeling.
• Analyze patterns in graphs by reading slope, correlation, and trends while avoiding claims of causation.

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

• Understand how resource availability influences population growth and decline.
• Interpret logistic growth curves and concepts of carrying capacity.
• Analyze how competition affects ecosystem populations using real-world examples.+ Show more

Learning Objectives

• Understand the concept of carrying capacity and how resources influence population growth.
• Interpret data graphs showing population changes over time.
• Identify the effects of limited food, water, and shelter on animal populations.+ Show more

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 environmental exposure affects the durability of steel, timber, concrete, and polymers over time
• Describe protective measures that slow down corrosion, rot, freeze–thaw damage, and UV degradation
• Connect maintenance and inspection intervals to expected service lifespan in bridge decks and exterior roofing

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

• Distinguish categorical data from numerical data and organize both in clear tables
• Use metadata, column headings, units, and timestamps to support credible scientific reporting
• Document sampling frames, replication, and annotated raw data so results can be validated later

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

• Describe the functions of circulatory, respiratory, digestive, and nervous systems in multicellular animals.
• Explain how organ systems cooperate to support gas exchange, nutrient distribution, and homeostasis.
• Identify system-level dependencies and feedback mechanisms in animal and plant transport systems.+ Show more

Learning Objectives

• Define what groundwater is and describe its location beneath Earth's surface.
• Explain how groundwater contributes to the water cycle.
• Identify factors that influence groundwater recharge and movement.+ Show more