Grade 7 Science Worksheets

Learning Objectives

• Describe the main types of surface processes such as weathering, erosion, transport, and deposition.
• Explain how different agents create specific landforms and signatures on Earth's surface.
• Connect rates of landscape change with geologic timescales and processes.

Learning Objectives

• Describe the key differences between elements and compounds based on atomic composition and properties.
• Explain how chemical bonding and formulas define compounds and their fixed ratios.
• Identify examples of elements and compounds and understand how properties change upon chemical combination.+ Show more

Learning Objectives

• Understand the principles of energy transfer and conversion in different devices.
• Identify examples of devices that convert energy from one form to another.
• Learn about energy accounting and the concept of efficiency in energy transformations.+ Show more

Learning Objectives

• Understand the physical and chemical processes involved in separating mixtures like bitumen from oil sands.
• Identify and differentiate between physical separation techniques and chemical treatments in resource extraction.
• Describe how material classification helps explain mixture behaviors during separation processes.

Learning Objectives

• Understand the relative sizes of planets within the solar system
• Estimate distances between planets using astronomical units
• Recognize the concept of light-years and their significance in astronomy+ Show more

Learning Objectives

• Understand the concept of a keystone species and its role in ecosystems.
• Identify examples of keystone species and their effects on biodiversity.
• Analyze the consequences of removing a keystone species from an ecosystem.+ Show more

Learning Objectives

• Explain how energy transfers through different organisms in a food web.
• Identify primary producers, consumers, and decomposers in regional ecosystems.
• Describe the impact of changes in species populations on ecological stability.+ Show more

Learning Objectives

• Understand the processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, and runoff.
• Explain how solar energy drives evaporation and influences Earth's water distribution.
• Identify the interactions between Earth's atmosphere, hydrosphere, and geosphere in the water cycle.+ Show more

Learning Objectives

• Understand different types of temperature sensors used in environmental contexts.
• Identify factors affecting sensor response time and measurement accuracy.
• Learn about calibration, uncertainty, and error sources in temperature measurements.+ Show more

Learning Objectives

• Analyze how corrosion, rot, freeze–thaw cycles, and UV degradation affect materials over time.
• Identify protective measures like coatings, cathodic protection, and concrete cover to enhance durability.
• Understand the implications of maintenance regimes and service environments on structural lifespan.+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Describe how unbalanced forces cause changes in an object's motion.
• Interpret free-button diagrams to analyze forces acting on objects.+ Show more

Learning Objectives

• Understand the purpose of fixed-site surveys in ecological monitoring.
• Identify different methods used for long-term ecological data collection.
• Recognize considerations for sampling design, temporal replication, and data quality.

Learning Objectives

• Describe what happens to temperature during solid warming, melting, liquid warming, and boiling.
• Explain how particle arrangement and energy use differ during phase changes compared to temperature increases.
• Interpret features of a heating curve (rising segments vs. plateaus) using the particle model.

Learning Objectives

• Describe the three principal types of plate boundaries and their characteristic features.
• Explain how divergent boundaries form mid-ocean ridges and rift valleys.
• Identify the landforms and processes associated with convergent plate boundaries.+ Show more

Learning Objectives

• Understand key technologies used in space exploration such as telescopes, satellites, and spacecraft propulsion.
• Identify historical missions and their contributions to space science.
• Explain how robotic missions and space stations gather data about extraterrestrial environments.+ Show more

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

• Describe the different types of weathering and how they affect rocks and landscapes.
• Explain the factors that influence weathering rates and landform development.
• Identify examples of physical, chemical, and biological weathering processes.+ Show more

Learning Objectives

• Understand the concept of net force and how it affects the motion of objects.
• Learn to analyze free-body diagrams for systems such as elevators and tug-of-war scenarios.
• Apply vector addition principles to determine the resultant force in one-dimensional systems.+ Show more

Learning Objectives

• Classify mixtures as solutions, colloids, or suspensions based on particle size and uniformity.
• Describe examples of each mixture type such as salt water, milk, and muddy water.
• Explain the concepts of homogeneity and heterogeneity in mixtures.+ Show more

Learning Objectives

• Understand the differences between elements and compounds based on atomic composition and bonding.
• Identify characteristic properties of elements and compounds such as melting point and conductivity.
• Interpret chemical formulas and recognize fixed ratios of atoms in compounds.+ Show more

Learning Objectives

• Understand how density differences enable separation techniques such as decanting, floatation, and centrifugation.
• Explain the principles of buoyant force, sedimentation rate, and centrifugal acceleration in particle separation.
• Identify suitable media and conditions for effective density-based separation methods.+ Show more

Learning Objectives

• Understand the principles of chromatography, including differential partitioning, stationary and mobile phases.
• Identify examples of paper and thin-layer chromatography using plant dyes and ink.
• Interpret retention factors, resolution, and limitations in chromatography experiments.+ Show more

Learning Objectives

• Understand the classification of substances as elements, compounds, or mixtures based on their composition.
• Identify characteristics of pure substances and mixtures, including their properties and examples.
• Distinguish between natural and manufactured materials such as alloys and suspensions.+ Show more

Learning Objectives

• Understand the factors affecting the solubility of substances in solvents.
• Interpret and analyze solubility curves and saturation concepts.
• Identify conditions leading to supersaturated solutions and their applications.+ Show more

Learning Objectives

• Explain what chemical properties are and how they influence material behavior.
• Identify observable indicators of chemical reactions, such as gas evolution, color change, and precipitate formation.
• Compare the chemical stability of noble metals with reactive non-metals.+ Show more

Learning Objectives

• Understand the different analytical indicators used to assess material purity.
• Learn methods such as melting point, boiling point, conductivity, refractive index, and gravimetric residue to evaluate purity.
• Interpret examples and data to determine the purity of samples based on multiple criteria.

Learning Objectives

• Understand the principles of mechanical separation techniques such as filtration and sedimentation.
• Identify the applications and limitations of filtration in separating heterogeneous mixtures.
• Describe the roles of pore size, flow behaviour, and media in filtration processes.+ Show more

Learning Objectives

• Understand the principles of simple distillation and vapor pressure differences.
• Identify the limitations of distillation when separating close-boiling mixtures and azeotropes.
• Explain how fractional distillation improves separation efficiency.+ Show more

Learning Objectives

• Describe how an inclined plane changes the force needed to move a load.
• Identify the component of force parallel and perpendicular to a ramp surface.
• Calculate mechanical advantage using input force and load (in simple examples).+ Show more

Learning Objectives

• Understand the key geologic surface processes including weathering, erosion, transport, and deposition.
• Describe the differences between mechanical and chemical weathering and their effects on landscapes.
• Explain how landforms such as canyons, deltas, and glacial features are created by surface processes.+ Show more

Learning Objectives

• Explain how relative positions produce predictable celestial patterns
• Interpret diagrams showing the phases of the Moon
• Compare solar and lunar eclipses using alignment and shadows+ Show more

Learning Objectives

• Apply superposition to determine the relative ages of rock layers
• Interpret original horizontality when examining sedimentary rock formations
• Use cross-cutting relationships to sequence geological events+ Show more

Learning Objectives

• Describe how gravitational attraction keeps celestial objects in orbit
• Compare orbital paths across different gravitational systems
• Compare orbital periods and speeds in space+ Show more

Learning Objectives

• Compare the sizes of objects within the solar system and beyond
• Describe cosmic distances using kilometres, astronomical units and light-years
• Interpret astronomical observations to identify differences in cosmic scale+ Show more

Learning Objectives

• Identify situations in which forces acting on an object are balanced
• Determine when the net force acting on an object is zero
• Distinguish between static and dynamic equilibrium using examples+ Show more

Learning Objectives

• Identify the forces acting on an object
• Determine the direction of the net force
• Explain how unbalanced forces change an object's motion+ Show more

Learning Objectives

• Identify gravitational, electric, and magnetic interactions using evidence
• Explain how forces act between objects without physical contact
• Compare the direction and relative strength of different forces+ Show more

Learning Objectives

• Explain how physical disturbances affect ecosystem population sizes
• Describe how biological disturbances change community composition
• Compare ecosystem resistance, resilience, and succession+ Show more

Learning Objectives

• Compare early developmental structures across vertebrates.
• Identify shared patterns in vertebrate embryonic development.
• Explain how embryonic similarities support evolutionary relationships.+ Show more

Learning Objectives

• Identify water movement between the atmosphere, hydrosphere and geosphere
• Explain how solar energy drives evaporation
• Explain how gravity influences precipitation, infiltration and runoff+ Show more

Learning Objectives

• Interpret balanced chemical equation coefficients as particle and mole ratios
• Calculate reactant quantities using mole ratios
• Calculate product quantities using proportional reasoning+ Show more

Learning Objectives

• Identify changes between igneous, sedimentary, and metamorphic rocks
• Explain how heat and pressure transform Earth's materials
• Describe the roles of water and gravity in the rock cycle+ Show more

Learning Objectives

• Identify agents that change Earth's surface, including water and ice
• Compare weathering, erosion, transport and deposition processes
• Explain how gravity and chemical reactions reshape landscapes+ Show more

Learning Objectives

• Explain how geographic separation can contribute to speciation.
• Describe how reproductive barriers limit reproduction between populations.
• Compare speciation examples involving islands, lakes, and chromosome changes.+ Show more

Learning Objectives

• Compare conservation strategies used to protect biodiversity.
• Explain how conservation decisions affect ecosystem services.
• Evaluate ecological benefits, economic costs, and social trade-offs.+ Show more

Learning Objectives

• Explain how unequal solar heating influences global circulation
• Describe how Earth's rotation affects global wind patterns
• Identify atmospheric circulation cells, prevailing winds, and jet streams+ Show more

Learning Objectives

• Explain how heritable variations influence survival and reproduction
• Identify environmental pressures that favor specific traits in populations
• Compare trait frequencies across generations during natural selection

Learning Objectives

• Trace how natural resources are processed into synthetic materials and metals
• Explain how refining changes material composition and properties
• Describe how polymerization produces synthetic materials+ Show more