Grade 7 Science Worksheets

Learning Objectives

• Explain how receptor proteins and signaling molecules enable cells to communicate.
• Describe the function of gap junctions and plasmodesmata in cell communication.
• Identify different mechanisms of signal regulation, including feedback and amplification.+ Show more

Learning Objectives

• Understand the principles of calorimetry and how it measures energy exchange.
• Identify different thermal processes such as combustion, melting, and heat loss.
• Apply energy conservation equations to calculate heat transfer in Joules.+ Show more

Learning Objectives

• Understand the principles of momentum conservation during collisions.
• Differentiate between elastic and inelastic collisions.
• Analyze how mass and velocity influence momentum transfer in impacts.+ Show more

Learning Objectives

• Describe the nature of gravitational, electric, and magnetic interactions as long-range forces.
• Explain how gravity acts universally and how electromagnetic forces can attract or repel.
• Relate gravitational attraction to mass and distance qualitatively.+ Show more

Learning Objectives

• Understand the classification of matter into pure substances, mixtures, and solutions.
• Identify properties that distinguish pure substances from mixtures.
• Describe how solutions are homogeneous and the particles disperse at a molecular level.+ Show more

Learning Objectives

• Analyze patterns in the fossil record to make inferences about ancestry and macroevolution over geologic time.
• Explain how stratigraphic sequences, index fossils, and transitional forms provide evidence for evolutionary change.
• Describe how mass extinctions and radiations can be recognized in fossil assemblages and sedimentary layers.

Learning Objectives

• Use quantitative models to describe how allele frequencies change over time under selection and drift.
• Interpret statistical and graphical information (fitness differentials, probability-based inheritance) to explain evolutionary outcomes.
• Apply Hardy–Weinberg ideas and calculate/compare frequencies to support hypotheses about trait change.

Learning Objectives

• Identify and describe different reaction types such as synthesis, decomposition, displacement, acid–base neutralization, and combustion.
• Understand how bonds are broken and formed during chemical reactions to produce new substances.
• Explain how atoms are rearranged in various reaction types while conserving the total atom count.+ Show more

Learning Objectives

• Define and compare key material properties: density, tensile strength, compressive strength, stiffness (modulus), ductility, toughness, and thermal expansion.
• Explain how material properties influence structural performance, including deformation, serviceability, and durability.
• Contrast wood, steel, and reinforced concrete by strength-to-weight ratio, deformation under load, and typical failure modes.

Learning Objectives

• Describe key chemical properties such as reactivity, combustion potential, and oxidation tendencies.
• Explain how observable indicators like gas evolution, colour change, and precipitate formation relate to chemical reactions.
• Differentiate the chemical stability of noble metals from reactive non-metals and their implications for material choice.+ Show more

Learning Objectives

• Explain how energy flows through trophic levels in an ecosystem and how that flow decreases across levels.
• Describe how matter cycles through ecosystems and how nutrient availability affects organism survival and biomass.
• Predict how changes in decomposition conditions, plant growth, or resource inputs can cause cascading effects on consumer populations.+ Show more

Learning Objectives

• Understand the key concepts of optimization in design processes, including performance metrics, constraints, and trade-offs.
• Identify various methods for parameter variation, sensitivity analysis, and cost-benefit reasoning used in engineering decisions.
• Apply optimization principles to real-world scenarios such as material selection, shape adjustments, and energy-efficiency considerations.

Learning Objectives

• Understand how magma forms within the Earth's mantle and crust.
• Identify different volcanic and intrusive rocks based on cooling rates.
• Explain the roles of fractional crystallization and magma mixing in rock diversity.+ Show more

Learning Objectives

• Define and understand the concept of physical change.
• Identify examples of physical changes such as melting, freezing, vaporization, condensation, tearing, grinding, and dissolving.
• Explain the difference between physical and chemical changes based on observable attributes and substance composition.+ Show more

Learning Objectives

• Identify how melting point, boiling point, conductivity, refractive index, and gravimetric residue can indicate impurities in a sample.
• Explain why different purity tests may give different results and how using multiple lines of evidence improves confidence.
• Apply purity concepts to evaluate whether a suspected substance is likely pure or contaminated.

Learning Objectives

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

Learning Objectives

• Explain how comparative anatomy supports evolution using homologous and analogous structures
• Identify examples of vestigial organs and describe how they can indicate common ancestry
• Use morphological comparisons to make basic claims about evolutionary relatedness

Learning Objectives

• Explain how fossil patterns in stratigraphic layers provide evidence for common ancestry and evolutionary change over geologic time.
• Use index fossils and correlations between sedimentary layers to infer relative ages and interpret changes in fossil assemblages.
• Analyze how transitional fossils and morphological trends support ideas about lineage continuity, radiations, and mass extinctions.

Learning Objectives

• Explain how early embryonic structures can be conserved across different animal groups
• Compare embryonic features (pharyngeal pouches, limb buds, and body-plan patterns) across taxa
• Use developmental timing to support ideas about evolutionary relationships

Learning Objectives

• Understand the concept of average speed and how it differs from instantaneous speed.
• Learn to perform simple one-step speed calculations using distance and time data.
• Convert speed units between meters per second and kilometers per hour.+ Show more

Learning Objectives

• Organize quantitative and qualitative observations into tables and appropriate graphs
• Interpret graphs by reading axes, scales, and trend patterns
• Use summary statistics (mean and median) to compare data sets and recognize outliers and uncertainty

Learning Objectives

• Explain how detritivores, fungi, and bacteria contribute to decomposition and nutrient cycling.
• Describe how carbon and nitrogen are transformed during decomposition.
• Evaluate how abiotic factors (temperature, moisture, oxygen, and chemistry of matter) affect decomposition rates and soil fertility.

Learning Objectives

• Explain how orogeny forms mountains through crustal shortening, thickening, and uplift during plate convergence.
• Describe how continental collisions and subduction-related compression contribute to mountain-belt structures.
• Connect erosion and isostatic adjustment to how uplifted mountain landscapes evolve over time.

Learning Objectives

• Explain how rising air cooling leads to cloud formation through condensation and/or freezing
• Describe how droplet and ice-crystal growth leads to precipitation types
• Connect energy transfers during phase changes to weather patterns

Learning Objectives

• Understand the processes of diffusion and osmosis as passive transport mechanisms.
• Describe how concentration differences influence diffusion and osmosis.
• Explain the effects of these processes on cells and biological functions.+ Show more

Learning Objectives

• Understand the processes involved in orogeny and mountain formation.
• Identify different tectonic mechanisms that contribute to mountain building.
• Describe how surface processes such as erosion and isostasy shape mountain landscapes.+ Show more

Learning Objectives

• Identify the different types of symbiosis: mutualism, commensalism, and parasitism.
• Describe specific examples of each symbiosis type in Alberta ecosystems.
• Explain ecological consequences of symbiotic relationships on populations and resource distribution.+ Show more

Learning Objectives

• Explain how an engineering design’s intended function guides choices in structure, mechanics, and electricity.
• Identify common constraints (cost, materials, safety, weight, durability) and how they affect engineering trade-offs.
• Use grade-appropriate quantitative reasoning to estimate performance for forces, energy, and current.+ Show more

Learning Objectives

• Identify observable signs indicating a chemical reaction has occurred
• Understand examples of chemical reactions and their indicators
• Differentiate between physical changes and chemical changes using evidence+ Show more

Learning Objectives

• Understand how potential and kinetic energy transfer occurs in mechanical systems.
• Identify factors such as elevation, mass, and speed that influence mechanical energy.
• Explain real-world examples of energy transfer, like sled descents and conveyor systems.+ Show more

Learning Objectives

• Understand different methods used to separate matter based on properties.
• Identify physical changes versus chemical changes in matter.
• Describe how density and solubility differences aid in separation techniques.+ Show more

Learning Objectives

• Explain energy transformations using the idea that total energy is conserved.
• Identify common forms of energy (mechanical, chemical, electrical, and thermal) and describe how they change during real processes.
• Use simple energy bookkeeping to predict what energy form increases or decreases in a system.

Learning Objectives

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

Learning Objectives

• Explain the processes involved in the rock cycle and how they connect tectonics, magmatism, and surface processes.
• Identify the different types of rocks produced in the rock cycle and the environmental conditions that form them.
• Describe how uplift, erosion, burial, and heat contribute to the transformation of rocks.+ Show more

Learning Objectives

• Identify and explain key thermal behavior factors such as conductivity, specific heat, and density.
• Compare different common Alberta construction materials based on their thermal properties.
• Understand how porosity, moisture, and layered assemblies influence thermal resistance.+ Show more

Learning Objectives

• Describe the role of the nucleus in a cell.
• Explain how DNA is housed and organized within the nucleus.
• Identify the structures that regulate traffic between the nucleus and cytoplasm.+ Show more

Learning Objectives

• Understand how phenotype results from interactions between genetic makeup and environmental factors.
• Identify examples of traits influenced by environmental conditions.
• Distinguish between inherited genetic traits and environmentally modulated traits.+ Show more

Learning Objectives

• Understand different types of geologic change hazards and their causes.
• Identify safety measures and preparedness strategies for geologic hazards.
• Analyze the impact of earthquakes, volcanoes, and landslides on communities.+ Show more

Learning Objectives

• Describe how physical disturbances such as wildfire and flooding impact ecosystems.
• Explain how biological disturbances like invasive species and disease outbreaks influence community composition.
• Identify mechanisms of ecosystem resilience, resistance, and succession in recovery processes.+ Show more

Learning Objectives

• Explain how calibration and traceable reference standards improve the accuracy of temperature measurements.
• Identify common sources of measurement error, including response time, spatial placement, radiation effects, and thermal contact.
• Use uncertainty and resolution concepts to interpret temperature readings appropriately.+ Show more

Learning Objectives

• Understand how gravity influences orbital motion within the solar system and galaxies.
• Explain the mathematical relationships that describe orbital velocity and centripetal force.
• Recognize observational evidence, such as orbital trajectories and Keplerian patterns, supporting gravitational motion theories.+ Show more

Learning Objectives

• Understand the three fundamental laws of motion described by Newton.
• Identify real-world phenomena that illustrate inertia, acceleration, and action–reaction pairs.
• Connect qualitative descriptions of force and motion with simple algebraic relationships.+ Show more

Learning Objectives

• Explain how Earth’s lithospheric plates move and how their boundaries affect surface features.
• Compare divergent, convergent, and transform boundaries in terms of earthquakes, volcanoes, and landforms.
• Use plate motion and plate geometry to describe changes in continents and ocean basins over geologic time.

Learning Objectives

• Understand how to define design problems with clear criteria and measurable constraints.
• Learn how to translate societal and environmental needs into quantitative targets.
• Recognize real-world examples of problem specifications, such as water filtration after contamination.+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow influence ecosystems.
• Identify factors such as frequency, intensity, and spatial scale that determine disturbance outcomes.
• Explain how some species adapt to disturbances and rebound quickly while others are affected adversely.+ Show more

Learning Objectives

• Explain how light energy is converted into chemical energy during photosynthesis.
• Describe the process of cellular respiration and how organisms harvest energy from food.
• Connect the functions of chloroplasts and mitochondria in energy transfer across different organisms.+ Show more

Learning Objectives

• Explain how calibration, resolution, and uncertainty affect the accuracy of temperature measurements.
• Identify common sources of error in temperature sensors, including response time, spatial placement, and radiation/thermal-contact effects.
• Compare how thermocouples, resistance temperature detectors (RTDs), and infrared sensors perform in different environmental conditions.

Learning Objectives

• Compare how liquid-in-glass, bimetallic, and digital thermometers measure temperature and identify their suitable uses.
• Use Celsius scale conventions (0°C and 100°C) and explain why calibration and good thermal contact improve accuracy.
• Distinguish systematic and random uncertainty and describe environmental factors that can affect temperature readings.