Grade 7 Science Worksheets

Learning Objectives

• Understand different types of organism interactions such as competition, predation, and symbiosis
• Identify examples of competition, predation, and symbiosis in nature
• Analyze how these interactions influence populations and resource availability

Learning Objectives

• Define components of ecosystems, including biotic and abiotic elements.
• Describe trophic categories and energy flow within ecosystems.
• Illustrate simple food chains from pond and forest environments.+ Show more

Learning Objectives

• Explain how evolutionary change happens at the population level over many generations
• Distinguish between traits inherited by offspring and changes that occur in individuals during their lifetimes
• Describe how variation and heritability provide the raw material for evolution+ Show more

Learning Objectives

• Define kinetic energy as energy of motion and potential energy as stored energy due to position or height.
• Identify the main idea of a science passage about energy in a swinging motion.
• Use key vocabulary words (kinetic energy, motion) to explain what changes as an object swings.

Learning Objectives

• Explain states of matter using a particle model and describe phase changes between states.
• Relate temperature and pressure to when phase changes occur and to measurable properties such as density and viscosity.
• Use water as an example to connect molecular energy to observable behavior, including how boiling point changes with atmospheric pressure.

Learning Objectives

• Explain kinetic energy and potential energy using everyday examples.
• Describe how height and motion affect whether energy is stored or moving.
• Use qualitative reasoning to compare energy in different situations.

Learning Objectives

• Identify physical properties of matter and describe how they can be observed or quantified.
• Differentiate chemical properties from physical properties using reaction-based examples.
• Explain how properties support classifying and identifying substances under consistent conditions.

Learning Objectives

• Explain how particle arrangement, spacing, and motion differ in solids, liquids, and gases.
• Predict how temperature and pressure can cause substances to change state.
• Use observable properties to classify common materials by state of matter.

Learning Objectives

• Identify major cell organelles and describe their main functions in living things
• Compare how the nucleus, mitochondria, chloroplasts, and cell membrane support survival and energy needs
• Connect cellular structures to how tissues and organs function in multicellular organisms

Learning Objectives

• Explain how solar energy and gravity drive the water cycle through evaporation, condensation, and precipitation.
• Describe how water moves between the atmosphere, hydrosphere, and geosphere using infiltration, runoff, and groundwater flow.
• Connect river discharge, groundwater recharge, and seasonal snowpack changes to the cycling and residence time of water.

Learning Objectives

• Identify measurable design criteria and explicit constraints in a design problem.
• Explain how trade-offs can affect multiple requirements in engineering design.
• Connect a solution plan to goals, constraints, and evidence of improvement.+ Show more

Learning Objectives

• Interpret variability and reliability by comparing range, mean, and median in experimental data.
• Read graphical displays (box plots and histograms) to describe spread, center, and potential skew.
• Identify misleading representations caused by scale choices, missing information, or non-comparable data.

Learning Objectives

• Understand the relationship between living organisms and non-living elements in ecosystems.
• Identify how sunlight, soil, water, temperature, and topography influence plant and animal communities.
• Explain cause-and-effect links that shape ecosystem structure across regional environments.+ Show more

Learning Objectives

• Explain how phenotype can be influenced by both genes and environmental factors.
• Identify examples of environmental effects on traits, such as nutrition, ultraviolet light, and temperature.
• Distinguish inherited genetic contributions from environmental modulation using evidence-based reasoning.

Learning Objectives

• Define components of ecosystems, including biotic and abiotic elements.
• Describe trophic categories such as producers, consumers, and decomposers.
• Explain energy flow from sunlight to organic matter in ecosystems.+ Show more

Learning Objectives

• Explain how biodiversity contributes to ecosystem stability
• Describe how overlapping ecological roles can buffer ecosystems against disturbances
• Identify ways habitat loss and invasive species can reduce biodiversity and increase vulnerability+ Show more

Learning Objectives

• Explain how decomposers (fungi and bacteria) break down dead organisms and waste
• Describe how decomposition returns nutrients to soil and water for producers to use
• Analyze how environmental conditions affect the rate of decomposition+ Show more

Learning Objectives

• Explain how matter (atoms of elements like carbon and nitrogen) cycles through ecosystems between living and nonliving components.
• Describe major pathways for matter cycling, including photosynthesis, respiration, feeding, decomposition, and transport in soil and water.
• Differentiate energy flow from matter cycling by recognizing that energy moves mainly one direction from the Sun.

Learning Objectives

• Describe the functions of the cell membrane in regulating substance movement.
• Differentiate between passive and active transport mechanisms.
• Explain the roles of membrane proteins in maintaining ion balances and facilitating transport.+ Show more

Learning Objectives

• Explain how plate tectonics, sedimentation, and weathering can create uneven distributions of Earth resources.
• Connect past biological activity and geologic time to the locations of fossil fuel deposits and mineral resources.
• Describe how groundwater systems form and why extraction can affect regional sustainability.

Learning Objectives

• Describe how natural climate records (ice cores, sediment layers, and tree rings) can be used to infer past temperature and precipitation.
• Explain how modern instruments provide evidence of recent climate trends.
• Identify major climate drivers over time and describe how they can change Earth’s energy balance and circulation.

Learning Objectives

• Understand the processes involved in the rock cycle, including lithification, metamorphism, and magmatism.
• Identify methods of relative and absolute dating used to interpret Earth's history.
• Analyze stratigraphic sequences and depositional environments to infer past tectonic and climatic conditions.+ Show more

Learning Objectives

• Understand how weathering breaks down rocks into sediments.
• Identify different depositional environments.
• Describe the process of lithification.+ Show more

Learning Objectives

• Describe how a fulcrum position changes effort distance in a lever
• Explain how pulley systems can change effort and direction to produce mechanical advantage
• Calculate ideal mechanical advantage using simple ratios for common lever and pulley setups+ Show more

Learning Objectives

• Understand the process of photosynthesis and how plants convert sunlight into chemical energy.
• Identify the key components involved in photosynthesis such as light, carbon dioxide, water, and sugars.
• Recognize the importance of photosynthesis in supporting ecosystems and energy transfer among organisms.

Learning Objectives

• Identify and describe various physical properties of substances.
• Understand how properties like density, melting point, and solubility help characterize materials.
• Use observable behaviors to infer properties of unknown substances.+ Show more

Learning Objectives

• Understand the main factors that affect the long-term durability of construction materials.
• Identify and explain the protective measures used to prevent material degradation over time.
• Analyze how environmental conditions influence the lifespan of materials like steel, timber, concrete, and polymers.+ Show more

Learning Objectives

• Understand the structural differences among specialized cells and their roles.
• Describe how morphological differences enable cells to perform specific functions.
• Identify examples of cell specialization in tissues and organs.+ Show more

Learning Objectives

• Understand the concept of load paths in structural systems
• Identify primary and secondary load routes in simple structures
• Recognize how openings and irregular geometry affect load redistribution+ Show more

Learning Objectives

• Explain the different methods of heat transfer: conduction, convection, and radiation.
• Identify real-world examples of heat transfer processes.
• Describe how temperature differences drive heat flow.+ Show more

Learning Objectives

• Identify the functions of key organ systems such as circulatory, respiratory, and digestive.
• Explain how tissues and organs work together within organ systems to perform vital life functions.
• Describe the specialized structures that increase efficiency in gas exchange and nutrient absorption.+ Show more

Learning Objectives

• Describe how receptor proteins in cell membranes detect signals like hormones and neurotransmitters.
• Explain the roles of gap junctions and plasmodesmata in direct cell communication.
• Understand the processes of signal amplification and feedback regulation in cells.+ Show more

Learning Objectives

• Understand different prototyping approaches including scaled physical models, digital finite-element models, and laboratory load rigs.
• Compare advantages and limitations of each prototyping method for assessing strength, stiffness, and failure modes.
• Learn about instrumentation such as strain gauges and displacement transducers used to measure response.+ Show more

Learning Objectives

• Explain how model evaluation compares predictions to evidence
• Identify common reasons a model may fail, such as incorrect assumptions or missing factors
• Describe how changing input parameters in a simulation can reveal which assumptions matter most+ Show more

Learning Objectives

• Describe how energy is involved in chemical reactions.
• Differentiate between exothermic and endothermic reactions based on energy changes.
• Explain the link between energy transfer and bond formation or breaking in chemical processes.+ Show more

Learning Objectives

• Explain Newton’s third law: forces in interactions are equal in magnitude and opposite in direction.
• Differentiate between action-reaction force pairs and effects on acceleration for objects of different masses.
• Identify action-reaction pairs in everyday contact and noncontact situations, including gravity.

Learning Objectives

• Explain how energy moves through producers, consumers, and decomposers
• Describe photosynthesis and cellular respiration as energy mechanisms
• Model an energy budget across trophic levels+ Show more

Learning Objectives

• Explain how atoms move through an ecosystem via processes like photosynthesis, feeding, respiration, and decomposition.
• Describe how decomposers return nutrients to soil and water and how this supports new plant growth.
• Distinguish matter cycling from energy flow in ecosystems, emphasizing that energy moves one direction from the Sun.

Learning Objectives

• Use test data to refine design parameters and improve performance within given constraints.
• Explain how iterative changes and recalibrated predictions can reduce error and increase effectiveness.
• Justify design modifications using quantitative comparisons (before-and-after results).

Learning Objectives

• Explain how to interpret patterns and relationships shown in common graphs (scatter plots, line graphs, and histograms).
• Use measures such as range and average to compare data sets while recognizing limits and uncertainty.
• Identify how outliers and measurement issues can affect conclusions and confidence.

Learning Objectives

• Explain solubility, saturation, and supersaturation using particle-level ideas.
• Describe how temperature, solvent polarity, and pressure affect dissolution.
• Use solubility concepts to predict concentration changes and crystallization outcomes.

Learning Objectives

• Understand how material properties, transfer modes, and conservation principles combine to evaluate energy performance.
• Analyze energy budgets including conduction, convection, radiation, storage, and conversion losses.
• Interpret numerical and graphical data to compare system efficiencies and responses.+ Show more

Learning Objectives

• Understand the principles of energy transfer and conservation in devices.
• Identify different types of energy conversions such as mechanical to electrical, light to electrical, and electrical to thermal.
• Explain the concept of energy efficiency and dissipative processes in energy transformations.+ Show more

Learning Objectives

• Understand the principles behind density-based separation techniques.
• Identify methods such as decanting, floatation, and centrifugation.
• Explain how buoyant force, sedimentation, and centrifugal force influence separation.+ Show more

Learning Objectives

• Understand how energy transfer influences atmospheric processes.
• Describe large-scale circulation patterns and their effects on climate.
• Identify key phenomena such as fronts, jet streams, and greenhouse gases.+ Show more

Learning Objectives

• Understand how to interpret distance–time graphs.
• Identify different types of motion from graphs (uniform, speeding up, slowing down, rest).
• Relate the slope of a distance–time graph to speed.+ Show more

Learning Objectives

• Identify examples of kinetic and potential energy in everyday scenarios
• Understand how elevation, mass, and speed influence mechanical energy
• Analyze the conversion between potential and kinetic energy+ Show more

Learning Objectives

• Explain how gravitational attraction provides the centripetal effect needed for orbital motion.
• Describe how orbital speed and orbital period relate to a planet or moon’s distance from the central body.
• Use observational evidence (trajectories and repeating orbital patterns) to support claims about stable orbits.