Grade 7 Science Worksheets

Learning Objectives

• Explain ecosystem changes using observations and monitoring evidence
• Compare investigations with long-term ecosystem monitoring
• Evaluate ecosystem actions using available scientific evidence+ Show more

Learning Objectives

• Compare ecological change after natural and human-caused disturbances
• Explain patterns revealed by repeated ecosystem observations
• Interpret changes in species and environmental conditions over time+ Show more

Learning Objectives

• Identify products supplied through managed plant production
• Compare land changes across plant-production systems
• Explain how plant-production systems use resources+ Show more

Learning Objectives

• Identify conduction, convection and radiation in heating and cooling systems
• Explain how materials affect paths of thermal-energy transfer
• Explain how design choices increase or reduce thermal-energy transfer+ Show more

Learning Objectives

• Compare intended benefits with unintended environmental consequences
• Evaluate environmental choices using scientific monitoring evidence
• Interpret long-term observations when comparing environmental alternatives+ Show more

Learning Objectives

• Explain how soil conditions affect plant production
• Explain how water and nutrients influence crop growth
• Compare biological, chemical and management approaches to crop problems+ Show more

Learning Objectives

• Explain heating and cooling effects using the particle model
• Distinguish temperature change from thermal-energy transfer
• Explain expansion and contraction in materials+ Show more

Learning Objectives

• Identify resources and conditions organisms require from habitats
• Explain how human activities change habitat conditions
• Explain changes in relationships among species+ Show more

Learning Objectives

• Describe Earth materials using observable rock and mineral properties
• Compare rock and mineral observations using consistent properties
• Distinguish direct observations from scientific inferences+ Show more

Learning Objectives

• Compare frame and shell structures by form and function
• Explain how different materials help structures support loads
• Identify factors that contribute to structural success or failure+ Show more

Learning Objectives

• Explain Earth processes using observations and measurements
• Compare evidence sources used to investigate Earth science problems
• Recognize uncertainty in scientific explanations and interpretations+ Show more

Learning Objectives

• Compare heating systems by energy source and resource needs
• Identify energy losses associated with heating systems
• Compare environmental effects of different heating choices+ Show more

Learning Objectives

• Trace direct and indirect changes through food webs
• Explain how matter moves through interconnected ecosystems
• Explain movement of nutrients, water, and pollutants+ Show more

Learning Objectives

• Compare evidence of crustal movement from different geological processes
• Explain how plate movements deform rock and create landforms
• Interpret earthquakes and volcanism as evidence of crustal change+ Show more

Learning Objectives

• Describe the main organ systems in multicellular animals and their functions.
• Explain how different organ systems cooperate to support processes like gas exchange, nutrient distribution, and homeostasis.
• Compare system interactions in humans and plants, emphasizing dependencies and feedback mechanisms.+ Show more

Learning Objectives

• Understand the importance of safety standards in technological design.
• Identify key safety considerations such as building codes, electrical safety, and safety margins.

Learning Objectives

• Identify signs of gas evolution during chemical reactions
• Understand how gas production indicates reaction changes
• Connect observable evidence to chemical processes

Learning Objectives

• Understand the concept that matter is made up of tiny particles
• Recognize that particles are in constant motion
• Relate temperature to particle motion and energy+ Show more

Learning Objectives

• Develop skills to critically analyze explanations, models, and evidence.
• Identify logical fallacies, distinguish correlation from causation, and evaluate data limitations.
• Apply evaluation techniques to real-world scientific scenarios and interpret conflicting information.

Learning Objectives

• Understand the principles of calorimetry in measuring energy transfer.
• Explain how temperature changes relate to heat exchange in different scenarios.
• Apply energy conservation equations to real-world thermal processes.+ Show more

Learning Objectives

• Understand how cells communicate through chemical and electrical signals.
• Identify the role of receptor proteins, gap junctions, and plasmodesmata in cell signaling.
• Explain the processes of signal amplification and feedback regulation in cell communication.+ Show more

Learning Objectives

• Explain how simple machines change the magnitude or direction of a force to make work easier
• Describe the roles of levers, pulleys, wedges, screws, inclined planes, and wheel-and-axles in everyday tools
• Calculate mechanical advantage from input and output forces and interpret what the result means

Learning Objectives

• Understand how the particle model explains the behavior of matter.
• Describe how chemical changes involve breaking and forming bonds between particles.
• Explain the conservation of mass during chemical reactions using the particle model.+ Show more

Learning Objectives

• Describe how energy flows through food chains, food webs, and trophic pyramids in ecosystems.
• Explain the cycling of matter and the roles of decomposers in nutrient recycling.
• Analyze how changes in inputs or energy pathways affect community composition and ecosystem functions.+ Show more

Learning Objectives

• Explain the processes of evaporation and crystallization and how they recover solutes from solutions.
• Identify factors that influence crystal formation, size, and purity.
• Describe real-world examples of crystallization, such as salt production and sugar crystallization.+ Show more

Learning Objectives

• Define trophic efficiency and describe how energy transfer changes between trophic levels
• Explain why energy pyramids show fewer organisms and less energy at higher levels
• Use a trophic efficiency idea to interpret ecosystem energy flow and predator-prey patterns

Learning Objectives

• Identify and describe the main layers of the Earth: crust, mantle, outer core, and inner core.
• Understand how seismic waves provide evidence for Earth's internal structure.
• Explain mantle convection and its role in plate motion.+ Show more

Learning Objectives

• Explain how temperature change relates to energy transfer in heating and cooling
• Use energy units (J and kJ) and temperature scales to describe thermal processes
• Identify key variables in heat calculations: specific heat, mass, and temperature change

Learning Objectives

• Understand the hierarchical levels of biological organization from individuals to the biosphere.
• Identify roles of producers, consumers, and decomposers within food webs.
• Explain how energy flows through trophic levels and impacts ecosystem stability.+ Show more

Learning Objectives

• Understand the key steps involved in the scientific inquiry process.
• Distinguish between quantitative and qualitative observations.
• Select appropriate measurement units and instruments for length, mass, and volume.+ Show more

Learning Objectives

• Understand the processes involved in mountain building and orogeny.
• Identify different geological features associated with convergent plate boundaries.
• Explain how tectonic activities shape mountain architecture over time.+ Show more

Learning Objectives

• Explain how conduction transfers heat within solids and across interfaces.
• Identify materials with high and low thermal conductivity in regional infrastructure.
• Describe how material properties such as electron mobility and lattice structure affect conduction rates.+ Show more

Learning Objectives

• Identify the three modes of thermal energy transfer: conduction, convection, and radiation.
• Describe the molecular particle behavior that drives conduction and convection and explain how radiation transfers energy without direct contact.
• Contrast typical media (solids, fluids, space/vacuum) and relative rates of heat transfer in common situations.

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action-reaction forces).
• Predict how forces and accelerations relate when two objects interact through pushing or expelling matter.
• Describe how equal and opposite interaction forces can produce different accelerations due to different masses.+ Show more

Learning Objectives

• Describe key developmental stages observed across different taxa during embryonic development.
• Analyze the significance of conserved embryonic features in understanding evolutionary relationships.
• Identify specific morphological similarities such as pharyngeal pouches and limb buds in various vertebrates.+ Show more

Learning Objectives

• Explain how energy is transferred through trophic levels in ecosystems.
• Describe the concept of energy efficiency and biomass pyramids in ecological communities.
• Analyze the limitations on energy flow between trophic levels due to energy losses.+ Show more

Learning Objectives

• Explain how weathering, erosion, deposition, and mass wasting change Earth’s surface over time
• Identify the main driving forces (water flow, wind, glaciers, and gravity) behind common landforms
• Use observations and mapped patterns to interpret how fast or slow surface changes occur

Learning Objectives

• Understand the principles of simple distillation and how it separates miscible liquids based on boiling points.
• Explain the concepts of vapor pressure, boiling point differences, and condensation in distillation processes.
• Identify examples where simple distillation is applicable and recognize its limitations with close-boiling mixtures.+ Show more

Learning Objectives

• Understand how geological processes affect the distribution of mineral, energy, and groundwater resources.
• Identify the relationship between plate tectonics, sedimentation, weathering, and resource locations.
• Analyze case studies of mineral deposits and aquifer locations to interpret geologic history and resource accessibility.+ Show more

Learning Objectives

• Identify potential and kinetic energy in different situations
• Understand how energy changes during motion and elevation
• Analyze real-world examples of energy transfer and conservation+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Describe how unbalanced forces cause changes in motion.
• Explain the relationship between net force, mass, and acceleration using diagrams and reasoning.+ Show more

Learning Objectives

• Understand the causes and types of faults and earthquakes.
• Identify characteristic seismic signatures related to fault motion.
• Explain how fault geometry and local geology influence seismic intensity.+ Show more

Learning Objectives

• Understand how mathematical representations express trait frequency changes over time
• Describe statistical analyses used to support evolutionary hypotheses
• Evaluate models of allele frequency change and genetic drift effects+ Show more

Learning Objectives

• Describe how gravity loads, lateral loads, and dynamic loads travel through structural members to foundations using load paths.
• Identify primary vs. secondary load routes and explain how redundancy helps prevent collapse.
• Explain how openings, re-entrant corners, and irregular geometry can change stiffness and redistribute loads.

Learning Objectives

• Understand the agents responsible for erosion and transport of sediments.
• Identify distinctive sedimentary signatures produced by rivers, glaciers, wind, and gravity.
• Explain how transport distance and energy affect grain size and sorting in landscapes.+ Show more

Learning Objectives

• Explain how matter and energy move through ecosystems using producers, consumers, and decomposers.
• Describe how energy is transferred through food chains and webs and why less energy reaches higher trophic levels.
• Connect metabolism and heat loss to the decreasing amount of usable energy at each trophic level.

Learning Objectives

• Explain how atoms move through an ecosystem during matter cycling processes such as photosynthesis, respiration, feeding, and decomposition.
• Describe how decomposers return nutrients to soil and water so that new plants can grow.
• Distinguish matter cycling (reused atoms) from energy flow (one-way transfer with heat loss).

Learning Objectives

• Understand different patterns of species interactions such as predation, competition, parasitism, mutualism, and commensalism.
• Analyze the effects of species interactions on community structure and resource partitioning.
• Interpret food web diagrams and trophic networks to identify direct and indirect effects among species.+ Show more