Grade 7 Science Worksheets

Learning Objectives

• Identify balanced forces that produce a net force of zero
• Explain how inertia relates to changes in motion
• Interpret free-body diagrams for resting and steadily moving objects+ Show more

Learning Objectives

• Identify recurring patterns across observations and investigations
• Distinguish associations from evidence supporting causal explanations
• Propose testable causes for observed changes in outcomes+ Show more

Learning Objectives

• Identify conduction, convection and radiation as transfer pathways
• Explain why net thermal energy moves toward cooler regions
• Interpret temperature records showing an approach toward equilibrium+ Show more

Learning Objectives

• Identify evidence and methods used to support scientific and engineering claims.
• Compare credible sources when investigating scientific or technological questions.
• Describe education, training, and skills associated with STEM careers.+ Show more

Learning Objectives

• Distinguish physical changes from chemical changes in matter.
• Identify observations that may indicate formation of a new substance.
• Classify changes using evidence about substances and their properties.+ Show more

Learning Objectives

• Explain why usable energy decreases at higher trophic levels.
• Trace energy transfer through a food chain.
• Compare energy flow with matter cycling in ecosystems.+ Show more

Learning Objectives

• Identify major objects and distant regions of the Solar System
• Explain how gravity and forward motion produce orbital motion
• Compare scale models representing Solar System sizes and distances+ Show more

Learning Objectives

• Distinguish scientific observations from measurements recorded with SI units.
• Calculate the mean of repeated measurements accurately.
• Select a suitable data display for comparing values or showing change.+ Show more

Learning Objectives

• Explain how scientific models represent important features of real systems.
• Identify limitations caused by scale, materials, and omitted features.
• Compare model behavior with observations to evaluate usefulness.+ Show more

Learning Objectives

• Identify interacting parts and flows within a system
• Explain how a part's structure supports its function
• Predict how changed conditions affect system behavior+ Show more

Learning Objectives

• Explain how temperature relates to average particle kinetic energy
• Compare samples by temperature and total thermal energy
• Interpret graphs showing relationships between temperature and particle motion+ Show more

Learning Objectives

• Compare variation in offspring produced by sexual and asexual reproduction
• Explain how inherited traits can become more common through natural selection
• Distinguish natural selection from human-directed selective breeding+ Show more

Learning Objectives

• Construct distance-time graphs from measured motion data using appropriate scales
• Identify the variables represented on horizontal and vertical graph axes
• Interpret upward and horizontal segments on cumulative-distance graphs+ Show more

Learning Objectives

• Distinguish testable hypotheses from scientific theories and laws.
• Identify evidence and reasoning that support a scientific claim.
• Explain why scientific theories and laws serve different purposes.+ Show more

Learning Objectives

• Calculate average speed using total distance and elapsed time
• Select appropriate units for reporting average speed
• Distinguish total distance from displacement in straight-line motion+ Show more

Learning Objectives

• Identify solutes and solvents in aqueous solutions.
• Explain how adding solvent changes solution concentration.
• Compare temperature, surface area and agitation as dissolving-rate factors.+ Show more

Learning Objectives

• Identify the main functions of four connected human body systems
• Trace oxygen from the lungs through blood to body cells
• Explain how the digestive system makes nutrients available+ Show more

Learning Objectives

• Explain how fossils provide evidence of past organisms and environments
• Apply superposition to compare the relative ages of undisturbed rock layers
• Identify how tilting, folding, and faulting alter rock-layer arrangements+ Show more

Learning Objectives

• Identify the main functions of seven major human organ systems
• Compare how body systems provide support, protection, and coordination
• Explain how nervous signals and muscles produce a quick response+ Show more

Learning Objectives

• Trace surface water and groundwater pathways within a watershed
• Predict how land-use changes affect runoff and water infiltration
• Explain how rivers carry materials from land toward oceans+ Show more

Learning Objectives

• Compare embryonic development stages across different taxa to identify conserved features.
• Describe morphological similarities such as pharyngeal pouch formation and limb bud development in vertebrates.
• Explain how developmental timing and patterning support phylogenetic reconstructions.+ Show more

Learning Objectives

• Understand the key factors that influence solubility of substances.
• Identify how temperature, pressure, surface area, and agitation affect dissolving.
• Relate examples such as seasonal salt solubility and road salt temperature sensitivity to real-world applications.+ Show more

Learning Objectives

• Understand structural, physiological, and behavioral adaptations in animals and plants.
• Identify specific adaptations that enable survival in cold environments.
• Analyze how adaptations influence species survival and niche occupation in different habitats.

Learning Objectives

• Identify sources of freshwater and understand how water moves through the Earth's hydrologic cycle.
• Describe processes involved in groundwater flow and soil formation.
• Explain how mineral deposits form and how geologic settings influence resource availability.+ Show more

Learning Objectives

• Explain how energy flows through trophic levels using food chains, food webs, and trophic pyramids.
• Describe how decomposers contribute to matter cycling and nutrient recycling in both terrestrial and aquatic ecosystems.
• Analyze how changes in energy pathways or inputs can shift community composition and ecosystem processes.+ Show more

Learning Objectives

• Explain how diffusion and osmosis move substances across a selectively permeable cell membrane.
• Describe how active transport uses energy to move substances against concentration gradients.
• Identify the role of membrane proteins in selective transport and maintaining internal balance.

Learning Objectives

• Understand the concept of conservation of mass during chemical changes.
• Identify factors that influence the accuracy of mass measurements.
• Apply knowledge of measurement techniques to real-world laboratory situations.+ Show more

Learning Objectives

• Understand different types of ecological modelling approaches and their applications.
• Identify the inputs, limitations, and regional examples of ecological models.
• Explain how models help interpret complex ecological data and the importance of validation.

Learning Objectives

• Describe the main processes involved in the rock cycle
• Identify different types of rocks and how they form
• Explain the role of geological forces such as uplift and erosion+ Show more

Learning Objectives

• Understand what habitat fragmentation is and its effects on ecosystems.
• Identify factors that contribute to habitat fragmentation and its consequences.
• Explain the concept of landscape connectivity and its role in ecosystem resilience.+ Show more

Learning Objectives

• Understand the concept of habitat fragmentation and its effects on ecosystems.
• Identify causes and consequences of habitat fragmentation.
• Explain how landscape connectivity can mitigate fragmentation impacts.+ Show more

Learning Objectives

• Understand the geologic evidence supporting plate tectonics and continental drift.
• Identify features such as earthquakes, volcanoes, and seafloor structures associated with plate movements.
• Explain how fossils, rock types, and matching continental margins provide clues about past supercontinents like Pangaea.+ Show more

Learning Objectives

• Understand how friction opposes motion and affects objects on different surfaces.
• Explain the role of gravity as a long-range force that causes objects to accelerate downward.
• Describe how surface roughness influences the amount of friction between objects.+ Show more

Learning Objectives

• Understand how energy flows within mechanical and industrial systems.
• Identify different energy transformation processes and their efficiency.
• Interpret energy flow diagrams and Sankey representations for system analysis.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the formula Q = mcΔT.
• Identify units such as joules and watts used in heat calculations.
• Calculate the amount of heat energy required to change the temperature of common substances.+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify and interpret stratigraphic markers like fossils, unconformities, and intrusive contacts.
• Explain how field observations and stratigraphic data are used to construct Earth's geological history.

Learning Objectives

• Understand how phenotype results from interactions between genetics and environment.
• Identify examples illustrating environmental influence on traits.
• Distinguish inherited genetic traits from environmentally modulated traits.+ Show more

Learning Objectives

• Understand the different types of specialized cells and their unique structures.
• Describe how morphological differences enable cells to perform specific functions.
• Explain the importance of cellular specialization in organismal tasks such as movement, gas exchange, and nutrient absorption.+ Show more

Learning Objectives

• Explain how uneven solar heating influences regional climate patterns.
• Identify major atmospheric and oceanic circulation features such as El Niño and monsoons.
• Analyze how topography and ocean currents modify local climates.+ Show more

Learning Objectives

• Understand and construct evidence-based scientific arguments using claims, evidence, and reasoning.
• Critically evaluate the strength and coherence of arguments that incorporate data, graphs, and models.
• Identify limitations of inference and consider alternative explanations in scientific evidence.+ Show more

Learning Objectives

• Explain how biodiversity helps ecosystems stay stable after disturbances.
• Describe how overlapping species roles can buffer the impacts of species declines.
• Identify examples of disturbances that reduce biodiversity and increase ecosystem vulnerability.

Learning Objectives

• Understand different types of biotic interactions such as predation, competition, mutualism, commensalism, and parasitism.
• Explain how human activities can disrupt biotic relationships in ecosystems.
• Describe the impact of biotic interactions on community structure and biodiversity.+ Show more

Learning Objectives

• Understand the different mechanisms of heat transfer: conduction, convection, radiation, sound, and electric current.
• Identify examples of each heat transfer process in real-life situations.
• Describe observable evidence of energy transfer such as temperature changes and rate differences.+ Show more

Learning Objectives

• Explain how adaptations are inherited traits that can improve survival or reproduction in a specific environment.
• Identify different types of evidence for adaptation, including population trait differences and fossil records.
• Connect environmental change to shifts in traits using the idea of natural selection.

Learning Objectives

• Understand the basic concepts of natural selection
• Recognize how traits influence survival and reproduction
• Identify examples of adaptation in different species+ Show more

Learning Objectives

• Understand the agents responsible for erosion and sediment transport such as water, glaciers, wind, and gravity.
• Identify distinctive sedimentary signatures produced by different agents of erosion.
• Explain how transport distance and energy influence grain size and sediment sorting.+ Show more

Learning Objectives

• Understand how mathematical and statistical tools represent evolutionary processes.
• Apply Hardy-Weinberg principles to gene frequency calculations.
• Use frequency tables and rate calculations to interpret population changes.+ Show more

Learning Objectives

• Explain the particle model as a representation of matter.
• Describe how atoms and molecules interact in chemical changes.
• Understand that mass remains constant during chemical reactions due to the rearrangement of atoms.+ Show more