Grade 7 Science Worksheets

Learning Objectives

• Define and describe the concepts of density and melting point.
• Compare and contrast the physical properties of different substances based on density and melting point.
• Recognize the importance of physical properties in identifying and separating materials.

Learning Objectives

• Understand how physical and chemical properties influence material suitability
• Identify observable properties such as corrosion resistance, hardness, melting point, solubility, and reactivity
• Explain the importance of chemical stability and environmental considerations in material choice+ Show more

Learning Objectives

• Understand the physical properties of solids.
• Identify how particles are arranged in solids.
• Learn how temperature and pressure affect the state of matter.

Learning Objectives

• Define what a physical change is.
• Identify examples of physical changes in everyday life.
• Distinguish between physical and chemical changes.

Learning Objectives

• Learn the basic concepts of mass and why accurate measurement is important in science.
• Identify different tools used to measure mass and understand their functions.
• Explore how conservation of mass applies during chemical changes and physical processes.

Learning Objectives

• Identify physical and chemical properties of substances
• Understand how properties indicate reactivity
• Predict possible chemical reactions based on properties+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify and interpret various stratigraphic markers including fossils, unconformities, and intrusions.
• Analyze field observations and stratigraphic data to establish the sequence of geological events.

Learning Objectives

• Understand different types of species interactions such as predation, competition, parasitism, mutualism, and commensalism.
• Analyze influences of species behaviors on community structure and resource sharing in ecosystems.
• Interpret food webs, trophic diagrams, and interaction networks to evaluate direct and indirect effects.+ Show more

Learning Objectives

• Understand the role of building codes and safety standards in technological practice.
• Identify key safety measures such as grounding requirements and load ratings.
• Explain the importance of safety margins, inspection protocols, and documentation for safety compliance.+ Show more

Learning Objectives

• Understand the principles of mechanical energy conservation.
• Describe energy transfer processes in pendulums and springs.
• Identify observable signs of energy loss to nonmechanical forms.+ Show more

Learning Objectives

• Understand and distinguish between speed, velocity, and acceleration through real-world examples.
• Identify scalar versus vector quantities in motion scenarios.
• Analyze how displacement, time, and rate of change relate in various motion contexts.+ Show more

Learning Objectives

• Interpret distance–time graphs to describe types of motion, including uniform motion, acceleration, and rest.
• Understand velocity–time graphs and relate slopes to speed and area under curves to displacement.
• Compare different graphs qualitatively and connect graphical patterns to real-world motion scenarios.+ Show more

Learning Objectives

• Understand how friction opposes motion and how surface roughness influences resistance.
• Describe how gravity affects objects in free fall and on inclined planes.
• Differentiate between contact forces like friction and long-range forces like gravity.+ Show more

Learning Objectives

• Understand how to compute average speed using distance and time data.
• Differentiate between average speed and instantaneous rate.
• Apply unit conversions between meters per second and kilometers per hour.+ Show more

Learning Objectives

• Understand how forces combine using vector addition to determine net force.
• Interpret free-body diagrams to analyze systems like elevators, tug-of-war, and loaded carts.
• Apply algebraic sign conventions to solve for net force in one-dimensional systems.+ Show more

Learning Objectives

• Understand the principles of energy transfer and conservation during device operation.
• Identify different types of energy conversion devices such as generators, photovoltaic cells, and electric heaters.
• Explain the concept of energy accounting and efficiency in energy transformation sequences.+ Show more

Learning Objectives

• Understand how environmental factors influence phenotypic traits.
• Distinguish between inherited genetic traits and environmentally-modulated traits.
• Evaluate evidence from empirical observations supporting environment-phenotype interactions.+ Show more

Learning Objectives

• Define energy transfer and transformation.
• Identify examples of energy transfer in daily life.
• Explain the difference between energy flow and energy transformation.+ Show more

Learning Objectives

• Use metric prefixes and unit analysis to report measurements with appropriate numerical precision and units
• Explain how calibration and instrument choice affect measurement accuracy and uncertainty
• Estimate variability using repeating trials and incorporate uncertainty into calculations

Learning Objectives

• Understand measurement precision and propagate measurement uncertainties.
• Learn how to select appropriate measurement instruments and calibrate them.
• Apply concepts of repeating trials and documenting units for reliable data.+ Show more

Learning Objectives

• Identify key variables in a calorimetry situation (mass, temperature change, and specific heat) and explain what each one means
• Relate rising or falling temperature to heat absorbed or released in a calorimetry setup

Learning Objectives

• Define the primary structural elements involved in load transfer within structures.
• Distinguish between dead loads and live loads and explain how they affect structures.
• Identify the types of stress—tension, compression, shear—in structural members.+ Show more

Learning Objectives

• Compare competing design solutions by using consistent metrics and model-based reasoning.
• Identify and quantify trade-offs among performance, cost, durability, and manufacturability.
• Use predicted vs. observed behavior from simple prototypes to rank options and document limitations.

Learning Objectives

• Explain how energy transfer during phase changes affects particle motion and arrangement
• Distinguish melting, freezing, evaporation, and condensation using the particle model
• Describe why temperature stays relatively steady during a phase change

Learning Objectives

• Understand the key factors that influence population size and distribution.
• Differentiate between exponential and logistic growth patterns.
• Identify how predator-prey relationships affect population oscillations.+ Show more

Learning Objectives

• Explain how momentum is conserved during collisions.
• Distinguish between elastic and inelastic collisions.
• Calculate post-collision velocities using principles of conservation of momentum.+ Show more

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous and analogous structures in different species.
• Examine morphological features like limb bones, skulls, and vestigial organs.+ Show more

Learning Objectives

• Understand the hierarchy of biological organization from cells to ecosystems.
• Identify roles of producers, consumers, and decomposers within food webs.
• Explain how energy flows through trophic levels.+ Show more

Learning Objectives

• Identify physical properties that can be measured to help classify and sort substances.
• Explain how density and solubility describe materials and how they support separating mixtures.
• Use physical property information to make predictions about materials in real-world situations.

Learning Objectives

• Understand methods for mapping load paths in complex structures.
• Identify primary and secondary load routes transferring various loads to foundations.
• Analyze how openings, corners, and irregular geometries affect load redistribution.+ Show more

Learning Objectives

• Understand the evidence that supports the theory of plate tectonics
• Identify key geological and geophysical data related to Earth's tectonic activity
• Explain how evidence such as fossils, seafloor spreading, and seismic data support continental drift

Learning Objectives

• Describe the production pathways of common synthetic materials from natural resources.
• Explain processes such as polymerization and refining steps that alter chemical composition.
• Identify examples like polyethylene, PET, nylon, and how materials are derived from feedstocks.+ Show more

Learning Objectives

• Describe how solar energy captured by primary producers becomes energy available to consumers through trophic levels.
• Calculate and interpret trophic efficiency patterns using given percentage values and energy/biomass examples.
• Explain why energy availability decreases at higher trophic levels using respiration and heat losses.+ Show more

Learning Objectives

• Understand the difference between mixtures and pure substances.
• Identify the types of mixtures: homogeneous and heterogeneous.
• Learn how physical properties enable separation methods like filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Describe the structure of Earth's outer shell and its division into plates.
• Identify and explain the three main types of plate boundaries: divergent, convergent, and transform.
• Understand how plate movements influence geological features like earthquakes, volcanoes, and mountain ranges.+ Show more

Learning Objectives

• Identify the main parts of a cell
• Describe the functions of cell components
• Understand the diversity of cell structures in living organisms+ Show more

Learning Objectives

• Understand the processes of weathering, transport, and deposition of sediments
• Identify different depositional environments such as deltas, beaches, and floodplains
• Explain how sediments are transformed into rocks through lithification

Learning Objectives

• Identify different types of rocks based on their features
• Understand how igneous, sedimentary, and metamorphic rocks form
• Recognize key characteristics of each rock type+ Show more

Learning Objectives

• Understand the process of passive diffusion across the cell membrane.
• Identify the role of concentration gradients in diffusion.
• Differentiate between passive and active transport mechanisms.

Learning Objectives

• Understand basic concepts of ecosystems and biodiversity
• Identify various conservation strategies and their purposes
• Recognize the importance of habitat protection and restoration+ Show more

Learning Objectives

• Understand the geological processes involved in mountain formation
• Identify different types of tectonic plate movements
• Analyze the role of erosion and uplift in shaping mountains

Learning Objectives

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

Learning Objectives

• Describe the process of the rock cycle
• Identify different types of rocks: igneous, sedimentary, and metamorphic
• Explain how Earth's surface processes contribute to rock transformation+ Show more

Learning Objectives

• Understand how deposition contributes to landform development.
• Identify features of a delta and explain the deposition process.
• Recognize different depositional environments and sediment characteristics.

Learning Objectives

• Use metric prefixes and scientific notation to express measurements with appropriate units and precision.
• Calibrate common instruments (balance and graduated cylinder) and record measurements correctly using the correct number of significant digits.
• Use repeating trials to estimate variability and describe uncertainty in quantitative observations.+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures and solutions.
• Explain solubility, saturation, and colligative effects in mixtures.
• Identify examples of mixtures, colloids, and suspensions, and understand separation techniques.+ Show more

Learning Objectives

• Explain how comparing mass of reactants and products helps test the conservation of mass in chemical reactions.
• Describe how closed systems and accurate system boundaries affect measured mass changes.
• Use measurement concepts like precision, accounting for gases, and dissolved species to interpret apparent mass loss.

Learning Objectives

• Explain what trophic efficiency measures and why it is important in ecosystems.
• Describe how energy diminishes through trophic levels in an energy pyramid.
• Analyze reasons why top predators are fewer in number within ecological communities.+ Show more