Grade 7 Science Worksheets

Learning Objectives

• Explain how energy changes during exothermic and endothermic chemical reactions using temperature evidence
• Relate energy input and release to bond breaking and bond formation
• Use energy-change evidence, along with other signs, to distinguish chemical from physical changes

Learning Objectives

• Explain how temperature differences drive heat transfer in conduction, convection, and radiation.
• Use a simple heat-transfer model to describe the direction of energy flow during everyday processes.
• Connect observable temperature changes to changes in thermal energy and possible heat-transfer mechanisms.

Learning Objectives

• Explain how an organism’s traits can affect its fitness in a specific environment.
• Describe how natural selection can shift which heritable traits are favored as environments change.
• Connect heritable variation to how populations respond over time, even within the same species.

Learning Objectives

• Understand the concept of ecological succession and its stages.
• Differentiate between primary and secondary succession.
• Identify factors that drive succession such as soil development, seed dispersal, competition, and facilitation.+ Show more

Learning Objectives

• Understand how disturbances impact ecosystems and habitats.
• Identify different types of disturbance regimes and their ecological consequences.
• Analyze species adaptation to disturbance frequency and intensity.+ Show more

Learning Objectives

• Understand how structural, physiological, and behavioral traits contribute to survival in different environments.
• Identify specific adaptation traits such as cold tolerance, drought resistance, seasonal coat changes, and root architectures.
• Explain the relationship between adaptive traits and environmental pressures in various habitats.+ Show more

Learning Objectives

• Understand different prototyping approaches including scaled physical models, digital finite-element models, and laboratory load rigs.
• Compare advantages of each prototyping method for assessing strength, stiffness, and failure modes.
• Explain how instrumentation such as strain gauges and displacement transducers are used to quantify responses.+ Show more

Learning Objectives

• Explain what atoms and molecules are as the basic particles of matter.
• Describe how particles behave during chemical changes.
• Understand the principle of conservation of mass during reactions.

Learning Objectives

• Understand the role of surface albedo and emissivity in radiative heat exchange.
• Identify how surface properties like colour and coatings influence solar gain.
• Explain the function of low-emissivity glazing and reflective roofs in building energy management.+ Show more

Learning Objectives

• Understand how surface-area-to-volume ratios limit cell size and function.
• Identify adaptations that increase exchange surfaces in cells and organisms.
• Explain how multicellular organisms overcome diffusion limitations through specialized structures.+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures and solutions.
• Explain the concepts of solubility, saturation, and concentration.
• Identify examples of colloids, suspensions, and true solutions.+ Show more

Learning Objectives

• Understand how different representations convey matter interactions including chemical equations, graphs, and tables.
• Interpret reaction rate graphs, stoichiometric ratios, and phase diagrams to analyze matter interactions.
• Select appropriate representations for quantitative comparisons and communicate relationships among measurable variables.

Learning Objectives

• Explain different types of interactions between populations such as competition, predation, and mutualism.
• Describe how resource partitioning, habitat differences, and temporal separation allow species to coexist.
• Analyze the effects of population interactions on community diversity and stability.

Learning Objectives

• Interpret variability and measures of central tendency in data sets.
• Analyze graphical representations such as box plots and histograms for spread and reliability.
• Calculate and compare mean, median, and range to assess data distribution.+ Show more

Learning Objectives

• Describe how light energy is converted into chemical energy during photosynthesis
• Explain how organisms harvest energy from food through cellular respiration
• Connect chloroplast-based sugar production with mitochondrial ATP generation across different taxa+ Show more

Learning Objectives

• Observe and compare plant epidermis, animal epithelial tissue, and protists using microscopy.
• Identify cell boundaries such as plasma membranes and cell walls in observed specimens.
• Distinguish between unicellular and multicellular organisms based on microscopic observations.+ Show more

Learning Objectives

• Describe how atoms are rearranged during digestion, biosynthesis, and respiration within organisms.
• Explain the conservation of matter during biochemical pathways like macromolecule synthesis and decomposition.
• Identify examples of carbon and nitrogen flow in biological processes.+ Show more

Learning Objectives

• Describe the structure and function of major organ systems in multicellular animals.
• Explain how organ systems interact to support processes like gas exchange, nutrient transport, and homeostasis.
• Compare system interactions in mammals and plants, highlighting system dependencies and feedback mechanisms.+ Show more

Learning Objectives

• Identify and describe the functions of key organelles in plant and animal cells.
• Differentiate between eukaryotic and prokaryotic cell organization.
• Connect cell structure features to their roles in processes like transport, synthesis, and compartmentalization.+ Show more

Learning Objectives

• Understand how fire as a disturbance impacts forest habitats
• Identify both positive and negative effects of forest fires
• Learn about the role of disturbance regimes in ecological succession+ Show more

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 the principles and types of simple machines used in everyday tools.
• Identify how force, effort, and load relate in simple machines like levers and pulleys.
• Calculate mechanical advantage for different simple machines based on geometric relationships.+ Show more

Learning Objectives

• Describe the structural components of the cell membrane.
• Explain the fluid mosaic model of the membrane.
• Identify the functions of embedded proteins, cholesterol, and carbohydrates.+ Show more

Learning Objectives

• Understand how to create and interpret distance–time and speed–time graphs.
• Learn the significance of slope and area under curves in motion graphs.
• Develop skills to extract average and instantaneous rates from graphs using examples like downhill runs.+ Show more

Learning Objectives

• Identify the main processes involved in the water cycle
• Explain how water moves through Earth's atmosphere, hydrosphere, and geosphere
• Recognize the interactions between different water cycle components and Earth’s spheres

Learning Objectives

• Understand the defining features of populations and their components.
• Identify factors influencing population size and distribution.
• Explain demographic metrics like growth rates and density.+ Show more

Learning Objectives

• Explain how supports, foundations, and load paths contribute to structural stability.
• Describe the effects of compression, tension, and shear on beams, columns, and foundations.
• Identify material properties such as stiffness, strength, and durability relevant to construction safety.+ Show more

Learning Objectives

• Understand how to construct and interpret free-body diagrams for various objects and situations.
• Learn vector addition techniques to determine net force magnitude and direction on objects.
• Decompose forces on inclined surfaces into perpendicular components and combine them algebraically.+ Show more

Learning Objectives

• Understand the key concepts of distance, time, and speed in motion measurement.
• Calculate average speed using distance and time data accurately.
• Identify common sources of measurement error in motion data.+ Show more

Learning Objectives

• Understand how inclined planes reduce the force needed to move loads.
• Identify components of force parallel and perpendicular to an inclined plane.
• Calculate mechanical advantage of inclined planes based on input force and load.+ Show more

Learning Objectives

• Understand the principles of levers and pulleys and how they modify effort and direction.
• Explain torque, fulcrum placement, and mechanical advantage calculations.
• Identify examples of lever classes and pulley systems used in rural settings.+ Show more

Learning Objectives

• Describe the six types of simple machines and their functions.
• Explain how mechanical advantage is calculated and its significance.
• Identify examples of simple machines in Alberta's agricultural and everyday contexts.+ Show more

Learning Objectives

• Analyze how force understanding impacts mechanical system design.
• Evaluate structural stability and safety considerations for regional applications.
• Compare alternative design solutions based on multiple criteria including material choice and mechanical advantage.+ Show more

Learning Objectives

• Understand the concept of equilibrium and static balance in structures.
• Identify and describe examples of static and dynamic equilibrium.
• Graphically represent force pairs and analyze their effects on objects.+ Show more

Learning Objectives

• Explain how test data are used to identify mismatches with success criteria.
• Describe how targeted design changes can improve performance while respecting constraints (safety, materials, and cost).
• Write clear cause-and-effect explanations connecting evidence to revised outcomes.

Learning Objectives

• Explain how technologies create trade-offs between benefits and costs for people and the environment
• Evaluate ethical issues in technology such as fairness, privacy, and product responsibility across the life cycle
• Connect engineering and design choices to real-world impacts on ecosystems and communities

Learning Objectives

• Identify independent, dependent, and controlled variables in a science investigation.
• Describe how controlled variables help make evidence reliable and fair.
• Select appropriate measurement evidence and units that match a scientific question.

Learning Objectives

• Explain the difference between accuracy and uncertainty when making measurements.
• Describe how tool resolution and repeated trials affect the range (spread) of data.
• Use tables and graphs to represent uncertainty and decide whether two results meaningfully differ.

Learning Objectives

• Explain how control methods reduce the influence of unrelated factors in an investigation.
• Identify control and comparison conditions and describe how they should be kept consistent.
• Use proper timing, calibration, and standardized procedures to support credible conclusions.+ Show more

Learning Objectives

• Explain how simple mechanisms transfer motion and force within engineered systems.
• Describe input-output relationships using the terms input energy, mechanism, and output performance.
• Predict how changing a mechanism (such as a gear ratio or pulley arrangement) affects speed and torque or force.+ Show more

Learning Objectives

• Explain how nutrients cycle through air, living things, water, and soil in an ecosystem
• Describe the main roles of photosynthesis, respiration, decomposition, and bacteria in nutrient transformations
• Use nutrient-cycle ideas to predict how limiting nutrients can affect ecosystem productivity

Learning Objectives

• Understand how to translate numerical distance–time data into graphical representations.
• Interpret slopes, areas under curves, and rates on motion graphs.
• Use examples such as downhill runs to analyze average and instantaneous speeds.+ Show more

Learning Objectives

• Identify major abiotic factors (temperature, moisture, light, soil nutrients, pH) and describe how each affects organisms.
• Explain how daily and seasonal changes in abiotic conditions can create stress or opportunities for populations.
• Use carrying capacity and population resilience to predict how organisms may respond to extreme abiotic events.

Learning Objectives

• Explain how forces act as causes of changes in an object’s motion using the ideas of velocity and acceleration
• Differentiate balanced forces from unbalanced forces and predict the effect on net force and motion
• Describe how friction, air resistance, and gravity oppose or change motion near Earth

Learning Objectives

• Describe how natural resources are transformed into common synthetic materials.
• Explain the processes of polymerization, refining, and manufacturing of synthetic materials like polyethylene, PET, and nylon.
• Identify trade-offs associated with synthetic materials, including durability, recyclability, and environmental impacts.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the formula Q = mcΔT.
• Identify units such as joules and watts used in heat calculations.
• Apply basic heat calculations to estimate energy transfer in common substances.+ Show more

Learning Objectives

• Describe characteristic methods for determining material behaviour, including tensile, compression, and bending assessments.
• Understand non-destructive testing techniques such as ultrasonic and hardness measurements.
• Explain the concepts of anisotropy in timber and composites, and the role of strain localization.+ Show more

Learning Objectives

• Understand the structure and function of DNA molecules and chromosomes.
• Explain how genes encode traits and how inheritance occurs through chromosomal transmission.
• Describe models of chromosome segregation during gamete formation.+ Show more