Grade 7 Science Worksheets

Learning Objectives

• Identify the four main types of tissues and their functions.
• Describe how tissue organization affects organ function.
• Differentiate between epithelial, connective, muscle, and nervous tissues.+ Show more

Learning Objectives

• Explain how weathering, erosion, deposition, and mass wasting reshape Earth’s surface using physical and chemical evidence.
• Identify major driving forces of surface change, including moving water, wind, glaciers, and gravity.
• Interpret observable landforms (such as deltas, canyons, and dunes) to connect process rates and time scales.

Learning Objectives

• Describe how freshwater lakes and ponds become stratified by temperature, light, and oxygen.
• Explain how abiotic gradients influence where organisms live (vertical zonation) in standing-water ecosystems.
• Predict how seasonal mixing (thermal turnover) changes dissolved oxygen and nutrient availability.

Learning Objectives

• Identify direct observations in scientific data.
• Understand how data collection supports scientific claims.
• Differentiate between direct observations and interpretations.+ Show more

Learning Objectives

• Identify and describe mechanical energy in pendulum motion
• Explain how energy is conserved or lost during pendulum swings
• Observe and analyze energy transfer between potential and kinetic forms+ Show more

Learning Objectives

• Understand the principle of mass conservation in closed systems
• Recognize practical applications of mass conservation in environmental contexts
• Interpret data related to mass balances in chemical and physical processes

Learning Objectives

• Identify examples of competition, predation, and symbiosis in the environment
• Explain how these interactions affect organism survival and community composition
• Recognize the effects of competition on resource availability and population dynamics

Learning Objectives

• Define what a closed system is in scientific terms.
• Explain how mass conservation applies in closed systems.
• Differentiate between closed and open systems based on matter transfer.+ Show more

Learning Objectives

• Explain how evidence from tests and validated models supports evaluation of design solutions
• Interpret results by connecting performance to criteria under realistic conditions and potential failure modes
• Use tradeoffs to justify which design option best meets constraints and intended function

Learning Objectives

• Understand how to interpret data and observations to support scientific claims
• Identify specific data points that strengthen or weaken scientific arguments
• Explain how evidence leads to conclusions in scientific reasoning+ Show more

Learning Objectives

• Identify the four main Earth system spheres: atmosphere, hydrosphere, geosphere, and biosphere.
• Explain how water, gases, and rocks move among Earth's spheres.
• Describe how changes in one sphere can affect others, such as climate change impacts.+ Show more

Learning Objectives

• Identify gas production as a sign of chemical change
• Recognize observable signs like color change and precipitate formation
• Understand irreversible changes indicate chemical reactions+ Show more

Learning Objectives

• Select an appropriate graph type (bar chart, histogram, line graph, or scatter plot) for categorical vs. continuous data.
• Construct and interpret graphs by choosing appropriate axis labels and scaling, including proportional representation.
• Use graphs to identify patterns, trends, correlation, and variability without implying causation.

Learning Objectives

• Explain how heat is transferred through conduction.
• Identify real-world examples of heat transfer by conduction.
• Describe the process of heat move through materials from warmer to cooler areas.

Learning Objectives

• Explain how chromatography separates mixtures using stationary and mobile phases
• Connect molecular polarity and differential partitioning to movement through a chromatography medium
• Interpret retention factors (Rf) and use them to compare unknown samples to reference substances+ Show more

Learning Objectives

• Describe Earth's internal layers and their properties.
• Interpret seismic wave behavior and its relation to Earth's internal structure.
• Explain mantle convection and its role in plate motion.+ Show more

Learning Objectives

• Explain how constraints in engineering and design can affect people and the natural environment
• Identify examples of environmental impacts caused by material choices and construction decisions
• Distinguish technically feasible solutions from socially and environmentally responsible solutions

Learning Objectives

• Explain how matter and energy behavior differ between open and closed systems
• Use system boundaries to predict whether a reaction will show mass conservation
• Interpret evidence from experiments by accounting for matter transfer into or out of a system

Learning Objectives

• Explain how human actions can alter ecosystems and change species composition and ecosystem functions
• Describe consequences for ecosystem resilience when impacts continue over time
• Identify stewardship principles such as habitat protection, mitigation, restoration priorities, and evidence-based monitoring

Learning Objectives

• Understand different forms of energy and how they transfer
• Recognize how energy conservation explains changes in temperature, motion, and state
• Identify real-life examples of energy transfer and conservation

Learning Objectives

• Understand the concept of physical change and how it differs from chemical change.
• Identify examples of physical changes in everyday life.
• Learn about phase changes such as melting, freezing, vaporization, and condensation.+ Show more

Learning Objectives

• Analyze how urban transportation affects society.
• Identify environmental consequences of transportation technology.
• Evaluate economic and social trade-offs in transportation development.+ Show more

Learning Objectives

• Understand the processes of deposition and how they shape various landforms.
• Identify different depositional environments and their characteristics.
• Describe how sediment layers and features like cross-bedding reveal flow regimes and event history.+ Show more

Learning Objectives

• Explain how physical properties change when models are scaled to different sizes.
• Identify key concepts such as square-cube law, surface-to-volume ratio, and Reynolds number.
• Analyze examples of scaled models in structures, turbines, and animal physiology.+ Show more

Learning Objectives

• Identify common structural failure modes and explain how geometry, materials, and loading contribute to them
• Describe how fatigue, buckling, fracture, and connection/foundation failures can lead to progressive collapse
• Explain limit states design, safety factors, and redundancy as ways to mitigate structural risk+ Show more

Learning Objectives

• Understand how empirical evidence supports scientific explanations.
• Learn the importance of observations and measurements in scientific investigations.
• Recognize how scientific models are refined over time with new data.+ Show more

Learning Objectives

• Explain how control conditions and comparison conditions help reduce the effect of unrelated factors in an experiment.
• Identify control variables and describe ways to keep them the same during testing.
• Use consistent timing and calibrated measurement to improve the credibility of collected data.

Learning Objectives

• Explain how freshwater reservoirs and groundwater flow are influenced by watersheds, aquifers, porosity, and permeability.
• Describe how soil forms and how geologic processes create mineral deposits.
• Differentiate renewable versus nonrenewable resources using real-world sustainability indicators.

Learning Objectives

• Differentiate between mixtures and pure substances based on composition and particle uniformity
• Identify homogeneous versus heterogeneous mixtures using observable traits
• Connect physical properties (such as solubility, density, and boiling point) to appropriate separation methods+ Show more

Learning Objectives

• Identify different types of pollution
• Understand how pollutants affect the environment
• Recognize the impact of pollution on human health and ecosystems+ Show more

Learning Objectives

• Explain what acceleration means in terms of changing velocity over time.
• Identify constant vs changing acceleration from patterns in velocity values.
• Describe how net force and mass affect acceleration using the idea of inertia.

Learning Objectives

• Use data and observations to support a scientific claim with specific references.
• Explain why evidence supports a claim using appropriate relationships and units.
• Evaluate alternative explanations by comparing which evidence fits best.

Learning Objectives

• Understand and interpret symbolic chemical equations.
• Analyze graphs showing mass or temperature changes over time.
• Read and interpret tabulated experimental data.+ Show more

Learning Objectives

• Explain how weather differs from climate using long-term patterns.
• Describe how the Sun’s energy, atmospheric circulation, and water distribution help determine climate.
• Model how ocean heat storage and heat release can influence regional climate.+ Show more

Learning Objectives

• Differentiate between mass and weight and explain how they are related to gravity
• Describe how gravity acts as a net force on falling objects and how it affects motion
• Use evidence from comparing different masses to support the idea that gravity provides the same type of force in the same gravitational field

Learning Objectives

• Explain how predators, prey, and competitors influence access to resources and affect survival and reproduction rates.
• Describe how mutualism and other population interactions can change population size over time.
• Interpret population trends using evidence about both environmental resources and organism responses to one another.

Learning Objectives

• Understand how energy enters and moves through an ecosystem
• Identify trophic levels and their roles in energy transfer
• Explain the concept of energy loss at each trophic transfer+ Show more

Learning Objectives

• Understand how surface-area-to-volume ratio affects cell size and function.
• Identify adaptations that increase exchange surface area in cells and organisms.
• Explain how multicellular organisms overcome surface area limitations through specialized structures.

Learning Objectives

• Summarize how human activities can alter ecosystems, including habitat change, pollution, resource extraction, and non-native species introductions.
• Explain how these impacts can affect species composition, ecosystem functions, and long-term ecosystem resilience.
• Describe stewardship principles such as habitat protection, mitigation, restoration priorities, and evidence-based monitoring.

Learning Objectives

• Understand how test data influences design improvements.
• Learn to interpret quantitative data for design decisions.
• Apply iterative adjustments to optimize design parameters.+ Show more

Learning Objectives

• Explain how optimization metrics help compare design choices under constraints.
• Identify common optimization metrics such as strength-to-weight ratio, operating cost, and energy conversion efficiency.
• Use evidence from a scenario to choose improvements that best meet explicit targets.

Learning Objectives

• Distinguish biotic factors from abiotic factors in an ecosystem
• Explain how abiotic conditions influence which organisms can survive
• Describe how changes in abiotic factors can affect biotic interactions and population sizes+ Show more

Learning Objectives

• Compare thermal conductivity qualitatively across metals, ceramics, polymers, and composites
• Explain how free electrons and lattice vibrations contribute to heat transfer in different materials
• Analyze how density, porosity, and moisture affect a material’s effective thermal conductivity+ Show more

Learning Objectives

• Explain how energy transfer causes changes of state between solid, liquid, and gas using the particle model
• Describe what happens to particle motion and particle arrangement during melting, freezing, evaporation, and condensation
• Interpret phase-change information to predict temperature behavior during energy transfer

Learning Objectives

• Explain how cooling air leads to cloud formation through condensation and deposition.
• Describe how temperature and moisture conditions determine whether precipitation is rain, snow, sleet, or hail.
• Connect energy changes during phase transitions to local weather patterns.

Learning Objectives

• Understand the basic factors influencing population size
• Identify how births, deaths, immigration, and emigration affect populations
• Explore the impact of limiting factors such as resource scarcity and predator-prey relationships+ Show more

Learning Objectives

• Identify the role of producers in ecosystems
• Describe how producers convert sunlight into food
• Differentiate between producers and consumers+ Show more

Learning Objectives

• Understand how plate tectonics shape Earth's surface through various geological features and processes.
• Identify different landforms and features caused by tectonic movements, volcanic activity, and surface weathering.
• Recognize evidence that connects geological processes to present-day landforms.