Grade 7 Science Worksheets

Learning Objectives

• Define and differentiate physical change from chemical change.
• Identify common examples of physical changes in everyday life.
• Describe the properties that change during physical changes.+ Show more

Learning Objectives

• Explain how energy transfers from higher-energy objects or systems to lower-energy ones
• Describe how energy can change form during a transfer (energy transformation)
• Connect energy transfers to observable effects such as temperature change, motion, or light emission

Learning Objectives

• Describe how melting, freezing, evaporation, and condensation involve changes in particle kinetic and potential energy
• Connect phase changes to energy absorption or release as particles rearrange
• Explain latent heat as energy transferred during a phase change without changing chemical identity+ Show more

Learning Objectives

• Understand the systematic approaches involved in ecological inquiry.
• Identify methods to collect and interpret ecological data.
• Recognize local examples of ecological relationships and human impacts.+ Show more

Learning Objectives

• Explain how systems modeling uses diagrams, scale models, and quantitative representations to predict behavior
• Interpret model outputs (e.g., forces, currents, or energy flow) and describe what assumptions enable or limit those predictions
• Compare different representations of systems (free-body diagrams, circuit schematics, and block diagrams) and identify the relationships each model emphasizes

Learning Objectives

• Understand the concept of flammability as a chemical property.
• Identify substances that are flammable based on descriptions and examples.
• Learn how chemical properties like reactivity and pH influence material behavior.

Learning Objectives

• Explain how air masses with different temperatures and moisture levels interact to form fronts.
• Describe what happens to temperature, wind, clouds, and precipitation near a front.
• Differentiate cold fronts and warm fronts using observable weather patterns.

Learning Objectives

• Define and identify key physical properties such as mass, volume, density, melting and boiling points, conductivity, and optical clarity.
• Link macroscopic measurements to molecular structures and intermolecular forces.
• Explain how density helps differentiate substances and how phase-change temperatures relate to purity.+ Show more

Learning Objectives

• Explain how seasonal and annual migrations connect distant habitats
• Identify common drivers of migration such as food availability and breeding needs
• Describe how timing cues and energy demands affect survival during migration+ Show more

Learning Objectives

• Identify and compare the three main modes of heat transfer: conduction, convection, and radiation.
• Use temperature changes and evidence from real-life situations to explain how heat energy moves.
• Distinguish how transfer rates differ across materials and environments.

Learning Objectives

• Explain how energy transfers affect an object's motion energy during different scenarios.
• Identify examples of energy transfer, such as braking, collisions, and bouncing.
• Describe the concept of energy bookkeeping in tracking changes in motion energy.+ Show more

Learning Objectives

• Understand the concept of equilibrium as the balance of forces acting on an object
• Differentiate between static and dynamic equilibrium
• Identify real-world examples of equilibrium in everyday objects+ Show more

Learning Objectives

• Understand the basic concepts of speed, velocity, and acceleration in motion.
• Distinguish between scalar and vector quantities related to motion.
• Interpret motion scenarios qualitatively and relate them to displacement, time, and rate of change.

Learning Objectives

• Understand the importance of clear criteria and constraints in the design process.
• Identify different types of design criteria and constraints.
• Analyze how criteria and constraints influence design choices.+ Show more

Learning Objectives

• Identify observable indicators of chemical reactions such as gas evolution, precipitate formation, color change, and temperature change.
• Connect qualitative evidence of reactions to underlying mass and energy changes.
• Understand how reactant transformations are represented by simple symbolic formulas.+ Show more

Learning Objectives

• Understand the mechanisms that lead to the formation of new species, including reproductive isolation, geographic separation, polyploidy, and adaptive radiation.
• Explain how lineage splits increase biodiversity through processes such as allopatric divergence and founder effects.
• Analyze examples of speciation in real-world contexts like cichlid radiations and plant polyploidization.+ Show more

Learning Objectives

• Explain how friction and other resistive forces oppose motion.
• Compare how surface texture and air resistance affect how quickly objects slow down.
• Use direction of net force to describe realistic (not ideal) motion.

Learning Objectives

• Understand the principle of conservation of mass in chemical reactions
• Identify how mass is balanced in reactions
• Predict product masses based on reactant quantities+ Show more

Learning Objectives

• Identify the main functions of the circulatory, respiratory, and digestive systems.
• Understand how organ systems work together to maintain internal stability.
• Describe specialized structures like alveoli and capillary networks that enhance exchange efficiency.+ Show more

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 natural records (ice cores, sediment layers, and tree rings) provide evidence of past climate
• Describe how modern instruments help scientists track recent climate trends
• Identify long-term climate drivers and how they can change Earth’s energy balance and circulation

Learning Objectives

• Explain the different types of phase changes such as melting, freezing, vaporization, and condensation.
• Describe how temperature and pressure influence phase transitions.
• Understand the concept of latent heat during phase changes.+ Show more

Learning Objectives

• Understand the different types of graphs used for data visualization.
• Identify suitable graph types for categorical and continuous data.
• Interpret features of graphs such as trend lines, error bars, and proportional scales.+ Show more

Learning Objectives

• Explain why model evaluation compares predictions to evidence.
• Identify how incorrect or missing assumptions can cause a model to disagree with observations.
• Use simulation-style reasoning to test which inputs most affect model outputs.+ Show more

Learning Objectives

• Distinguish between separations and chemical changes by linking outcomes to matter properties
• Explain how density differences can cause settling and layering during physical separation
• Use solubility differences to predict how mixtures can be separated by dissolving selectively

Learning Objectives

• Explain the mechanisms of natural selection and how they lead to adaptation in populations.
• Identify key sources of genetic variation and describe their roles in evolution.
• Analyze how environmental pressures influence the survival and reproductive success of organisms.

Learning Objectives

• Understand the iterative nature of the technological design process.
• Identify key steps such as problem definition, criteria setting, brainstorming, prototyping, evaluation, and optimization.
• Recognize examples like water filtration, electrical circuits, and mechanisms to illustrate trade-offs and refinement.+ Show more

Learning Objectives

• Understand how cellular structures and transport processes support homeostasis.
• Identify key mechanisms such as transport proteins, membrane pumps, and hormone signaling.
• Explain the role of organ systems in maintaining nutrient levels, ion balances, and water balance.+ Show more

Learning Objectives

• Understand how geologic processes influence the distribution of mineral, energy, and groundwater resources.
• Connect plate tectonics, sedimentation, weathering, and biological activity to resource locations.
• Evaluate the impacts of resource extraction and sustainability considerations.

Learning Objectives

• Explain how Earth’s tilt and orbit change the Sun’s apparent height and daylight length over the year.
• Describe how seasonal patterns differ between the Northern and Southern hemispheres.
• Use evidence about day length and solar angle to support claims about seasons.

Learning Objectives

• Explain how magnitude and direction combine to determine net force
• Predict how unbalanced and balanced forces affect an object’s velocity (speed and/or direction)
• Apply net force ideas to everyday situations such as starting, stopping, or redirecting objects

Learning Objectives

• Understand how potential and kinetic energy relate to forces and motion in mechanical systems.
• Identify factors such as elevation, mass, and speed that influence energy transfer and conservation.
• Analyze real-world examples of energy conversion, such as sled descents and conveyor systems.+ Show more

Learning Objectives

• Understand the criteria used to evaluate species' conservation status.
• Interpret evidence related to species population trends, threats, and recovery potential.
• Analyze regional examples of conservation status assessments.+ Show more

Learning Objectives

• Understand and describe various chemical properties of substances.
• Identify observable indicators of chemical reactions.
• Differentiate between physical and chemical changes based on properties.+ Show more

Learning Objectives

• Identify how to organize categorical and numerical data using clear tabular structures
• Apply consistent units, column headings, and timestamp conventions for time-series data
• Describe metadata, sampling frames, and replication records to preserve data provenance and context+ Show more

Learning Objectives

• Explain how functional requirements and constraints guide the steps of the design process.
• Use performance objectives (load capacity, stiffness, serviceability) to compare and select design options.
• Describe how decision matrices, sketches, and trade-off analysis support choosing a preferred solution.

Learning Objectives

• Explain how particle arrangement, spacing, and movement define solids, liquids, and gases
• Describe how temperature and pressure can cause transitions between states of matter
• Use observable properties (shape, volume, flow, compressibility) to identify the state of a substance

Learning Objectives

• Classify matter as a pure substance (element or compound), a mixture, or a solution based on its properties and uniformity.
• Explain how fixed composition and characteristic melting points help identify elements and compounds.
• Describe how mixtures and solutions differ in composition and particle scale (visible vs molecular level).

Learning Objectives

• Understand the basic components of ecosystems and their functions.
• Explain how energy flows through an ecosystem from the Sun to various organisms.
• Recognize factors that influence nutrient cycling and matter movement.+ Show more

Learning Objectives

• Describe how matter is recycled within organisms through processes like digestion, biosynthesis, and respiration.
• Explain the flow of carbon and nitrogen in biological systems and their transformation during metabolic pathways.
• Identify key biochemical pathways involved in matter cycling, such as macromolecule synthesis and decomposition.+ Show more

Learning Objectives

• Explain how conservation of mass applies to closed-system reactions
• Use mass accounting to relate reactant masses to product masses
• Compare theoretical yields with measured yields using input-output mass data+ Show more

Learning Objectives

• Explain how heritable variation and environmental pressures drive natural selection.
• Describe how differential survival and reproduction can shift trait distributions over generations.
• Use real-world examples (antibiotic resistance and island finches) to identify selective pressures and adaptations.

Learning Objectives

• Define biotic and abiotic components of an ecosystem and explain how they interact
• Identify producers, consumers, and decomposers and describe their roles
• Explain how energy moves through a food chain starting with sunlight+ Show more

Learning Objectives

• Understand the steps involved in the design process from requirements to decision-making.
• Identify and evaluate design constraints, specifications, and performance objectives.
• Apply decision matrices and sketches to compare alternative solutions.+ Show more

Learning Objectives

• Identify the independent variable, dependent variable, and controlled variables in an investigation plan.
• Explain how measurable evidence links to a scientific question.
• Use consistent measurement methods to make fair comparisons across trials.+ Show more

Learning Objectives

• Identify main ideas about why populations change over time.
• Use key vocabulary: birth rate, death rate, immigration, emigration, carrying capacity, and limiting factors.
• Explain how birth and death and movement into and out of a habitat affect population size.

Learning Objectives

• Explain how energy changes in chemical reactions can be detected through temperature changes.
• Differentiate exothermic and endothermic reactions using the idea of bond breaking and bond formation.
• Use energy evidence along with other signs to distinguish chemical change from physical change.

Learning Objectives

• Explain how constraints in a design problem can affect both people and the natural environment.
• Identify environmentally responsible choices by connecting scientific cause-and-effect reasoning to real materials and processes.
• Distinguish between solutions that are technically feasible and those that are socially and environmentally responsible.