Grade 7 Science Worksheets

Learning Objectives

• Describe the movement of water across Earth's systems.
• Explain the processes of groundwater flow, surface runoff, and ocean circulation.
• Understand the impact of water movement on climate, ecosystems, and human activity.+ Show more

Learning Objectives

• Read a distance–time graph to describe motion and rest intervals.
• Identify what different slopes mean for whether an object is moving or staying still.
• Use graph evidence to explain motion in simple real-world contexts.

Learning Objectives

• Explain how birth and death rates, immigration and emigration, and abiotic constraints affect population size and distribution
• Describe how regional factors (such as seasonal water, fire regimes, disease, and land-use change) can cause population fluctuations
• Use population trends to reason about local extirpations and expansions

Learning Objectives

• Understand the iterative nature of the engineering design process and its main steps.
• Identify different methods and tools used to document and evaluate design decisions.
• Analyze exemplars such as mechanisms, water filtration prototypes, and electrical circuits to understand trade-offs and refinement.+ Show more

Learning Objectives

• Define a design problem using clear criteria for success and measurable constraints.
• Translate real-world needs (societal, environmental, and safety) into quantitative targets and acceptable limits.
• Distinguish between criteria (what success looks like) and constraints (what limits the design).+ Show more

Learning Objectives

• Identify and explain how competition, predation, and symbiosis affect organisms in a community
• Describe cause-and-effect relationships between interactions and population changes over time
• Differentiate major types of symbiosis: mutualism, commensalism, and parasitism

Learning Objectives

• Understand how energy transfers occur during motion.
• Identify examples of energy conversion like thermal energy from braking.
• Explain the redistribution of energy in inelastic collisions.+ Show more

Learning Objectives

• Understand how fossils provide evidence of ancient life and evolutionary patterns.
• Identify key features of fossil records, including transitional forms and stratigraphy.
• Analyze how fossils help infer common ancestry and macroevolutionary trends.

Learning Objectives

• Identify signs of gas production in chemical reactions.
• Differentiate between physical changes and chemical changes involving gases.
• Use observable evidence to infer chemical reactions.

Learning Objectives

• Explain how energy transfers through a food web from producers to consumers.
• Describe how decomposition helps cycle matter (nutrients) within an ecosystem.
• Use evidence from food web relationships to predict how changes affect organisms.

Learning Objectives

• Identify observable signs indicating a chemical reaction has occurred
• Differentiate between physical changes and chemical changes based on indicators
• Understand examples of chemical reactions such as rusting, combustion, and neutralization

Learning Objectives

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

Learning Objectives

• Define what constitutes a clear design problem in science.
• Identify measurable criteria and constraints in real-world scenarios.
• Translate societal and environmental needs into specific, quantitative targets.+ Show more

Learning Objectives

• Understand the factors that influence bridge design durability and cost
• Model different bridge configurations to evaluate performance
• Analyze trade-offs between strength, expense, and manufacturability+ Show more

Learning Objectives

• Understand the key components of designing and conducting a scientific inquiry.
• Identify proper laboratory procedures and safety protocols.
• Recognize the importance of measurement accuracy and documentation in experiments.+ Show more

Learning Objectives

• Understand how to read and interpret line graphs
• Identify trends and patterns in scientific data
• Evaluate the significance of outliers in data sets+ Show more

Learning Objectives

• Identify structural, physiological, and behavioral adaptations of organisms.
• Explain how environmental pressures influence evolution and trait development.
• Describe adaptation strategies in different habitats such as wetlands, forests, and meadows.+ Show more

Learning Objectives

• Explain how organisms function as interacting systems made of internal structures with specific roles
• Describe how structures help process inputs such as food, oxygen, and water into forms the organism can use
• Use evidence to connect structure and function in body systems (digestive, respiratory, and excretory)

Learning Objectives

• Understand the concept of a food web and its components.
• Identify the interconnected relationships among producers, consumers, and decomposers.
• Explain how energy flows through an ecosystem via a food web.+ Show more

Learning Objectives

• Identify evidence of internal geological processes that shape Earth's surface
• Understand how uplift and deformation contribute to landform formation
• Recognize signs of external processes like erosion and sediment transport+ Show more

Learning Objectives

• Analyze how technology can create short- and long-term social, economic, and environmental impacts
• Evaluate trade-offs using cost-benefit reasoning and identify unintended consequences
• Explain how policies and ethical considerations can help reduce harmful impacts

Learning Objectives

• Explain how evaporation and cooling lead to crystallization, including nucleation and crystal growth.
• Describe how impurities and cooling/evaporation conditions affect crystal size, shape, and purity.
• Evaluate how recrystallization improves purity by forming well-ordered crystal lattices.

Learning Objectives

• Explain what adaptations are and how they relate to survival and reproduction in specific environments.
• Identify evidence for adaptation from population comparisons, fossil records, and observed environmental changes.
• Use scientific reasoning to connect environmental pressures to changes in trait frequencies over time.

Learning Objectives

• Explain how seasonal thermal cycles influence climate and ecosystems.
• Identify the key energy pathways involved in seasonal environmental changes.
• Describe the roles of solar input, albedo variation, and latent heat in regional climate patterns.+ Show more

Learning Objectives

• Explain how abiotic (physical) and biotic (living) disturbances can change population sizes and community composition.
• Describe mechanisms of resistance, resilience, and succession that help ecosystems recover after disturbances.
• Use empirical observations and longitudinal (over-time) data to infer likely causes of population increases or declines.

Learning Objectives

• Understand how resource availability affects population size in ecosystems.
• Identify examples of resources that limit organism survival and reproduction.
• Explain the relationship between environmental resources and habitat health.+ Show more

Learning Objectives

• Identify the four main tissue types and describe their primary functions in the body.
• Match tissue types to specific examples of where they are found and what they do.
• Explain how the arrangement of tissues in organs supports movement, protection, communication, and repair.

Learning Objectives

• Define specific heat capacity and understand its role in thermal energy transfer.
• Calculate the amount of energy required to heat substances using mass, specific heat, and temperature change.
• Convert between units such as Joules and kilojoules, grams and kilograms, and Celsius and Kelvin.+ Show more

Learning Objectives

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

Learning Objectives

• Define what is meant by population limits and carrying capacity.
• Describe how resource availability affects population growth.
• Analyze examples of population fluctuations due to resource constraints.+ Show more

Learning Objectives

• Define independent, dependent, and controlled variables.
• Explain the importance of operational definitions in experiments.
• Identify sources of confounding variables in research.+ Show more

Learning Objectives

• Identify biotic and abiotic components of an ecosystem and give examples of each
• Explain how energy flows from primary producers to consumers through feeding relationships
• Describe how abiotic factors influence growth, reproduction, and survival of organisms+ Show more

Learning Objectives

• Explain how ethical responsibilities such as data integrity and proper attribution support trustworthy STEM work.
• Identify communication practices for technical reports, including clear claims and reliable visual annotations.
• Describe how equitable access and responsible data sharing can reduce harm and improve community benefit.

Learning Objectives

• Understand how human activities such as deforestation, urban expansion, and fossil-fuel use impact the environment.
• Identify scientific tools and methods used to monitor environmental changes caused by humans.
• Evaluate mitigation strategies to reduce negative human impacts on ecosystems.+ Show more

Learning Objectives

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

Learning Objectives

• Understand what gravity is and how it pulls objects downward.
• Recognize how mass affects gravitational force.
• Learn why different objects accelerate at the same rate near Earth.+ Show more

Learning Objectives

• Explain how tectonics, magmatism, weathering, erosion, burial, and metamorphism connect within the rock cycle.
• Use rock cycle terms to describe how rocks change forms over geologic time.
• Interpret how uplift and plate motion create the conditions for recycling crustal materials.

Learning Objectives

• Explain how conduction transfers kinetic energy through solids and across interfaces
• Compare thermal conductivity of common materials and relate it to temperature gradients
• Use ideas of conductivity coefficients and contact resistance to predict heat-flow behavior+ Show more

Learning Objectives

• Explain how buoyant force and sedimentation depend on particle density and size during density separation.
• Describe how decanting, floatation, and centrifugation separate mixtures using density differences.
• Predict which separation method is most suitable for particles with different densities based on real-world constraints.

Learning Objectives

• Describe the forces involved in plate tectonics such as mantle convection, slab pull, and ridge push.
• Explain how mantle convection drives plate motion through circulation of mantle material.
• Identify the roles of slab pull and ridge push in plate movement.+ Show more

Learning Objectives

• Identify the components of an ecosystem including biotic and abiotic elements.
• Distinguish between biotic and abiotic factors and understand their roles.
• Understand the different trophic categories: producers, consumers, decomposers.+ Show more

Learning Objectives

• Compare scaled physical models, digital finite-element models, and laboratory load rigs for evaluating strength, stiffness, and failure modes.
• Explain how instrumentation such as strain gauges and displacement transducers measures structural response.
• Describe limitations of prototyping, especially scaling effects on joints and material heterogeneity.+ Show more

Learning Objectives

• Define control conditions and comparison conditions in a scientific investigation.
• Explain how controlling variables increases the credibility of evidence.
• Describe why consistent timing, tool calibration, and standardized handling support fair tests.

Learning Objectives

• Explain how evolutionary change occurs at the population level through changes in allele frequency over generations
• Connect inherited variation and differential survival/reproduction to long-term shifts in traits
• Differentiate evolution from individual organisms changing within their lifetimes

Learning Objectives

• Explain how gravitational attraction influences orbital motion within the solar system.
• Understand the mathematical relationships that describe orbital velocity and centripetal force.
• Identify observational evidence supporting theories of orbital motion, stability, and perturbations.+ Show more

Learning Objectives

• Understand the processes of evaporation and crystallization in recovering solutes.
• Identify factors affecting crystal size, shape, and purity.
• Describe real-world examples of crystallization, such as salt and sugar production.+ Show more

Learning Objectives

• Explain how mechanical energy transfers between kinetic and potential energy in moving systems such as pendulums and springs.
• Use qualitative energy bookkeeping to describe conservation of mechanical energy in a closed system and energy loss to nonmechanical forms in an open system.
• Interpret motion outcomes (speed, height, and amplitude) as evidence of energy redistribution and inefficiencies.

Learning Objectives

• Describe how biodiversity includes genetic, species, and ecosystem diversity.
• Explain how richness, evenness, and habitat heterogeneity are used to measure regional biodiversity.
• Interpret what biodiversity metrics can suggest about ecosystem resilience and function.