Grade 7 Worksheets

Learning Objectives

• Explain the concept of equilibrium as the balance of forces in an object.
• Differentiate between static and dynamic equilibrium in real-world scenarios.
• Apply qualitative and simple quantitative analyses to predict objects' behavior at rest or moving with constant velocity.+ Show more

Learning Objectives

• Define solutions, colloids, and suspensions
• Identify examples of each mixture type
• Describe the properties and differences of mixture categories+ Show more

Learning Objectives

• Understand the role of different types of connections in load transfer and structural redundancy.
• Identify and describe shear, bearing, and slip effects at connections.
• Explain the function of gusset plates and base plates in distributing forces.+ Show more

Learning Objectives

• Define thermal energy and distinguish it from temperature.
• Identify common sources of thermal energy in natural and human-made environments.
• Explain the flow of thermal energy from higher to lower internal energy objects.+ Show more

Learning Objectives

• Understand the properties of reflective and emissive surfaces
• Identify how surface properties influence radiative heat exchange
• Analyze the effects of color and coating on solar gain+ Show more

Learning Objectives

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

Learning Objectives

• Understand different types of temperature sensors used in environmental monitoring
• Learn how calibration, response time, and placement affect measurement accuracy
• Identify common sources of measurement error and how to minimize them+ Show more

Learning Objectives

• Explain how heat transfer occurs through convection in fluids.
• Identify the key factors that influence convective circulation.
• Relate convection phenomena to real-world environmental examples.

Learning Objectives

• Understand the properties of materials that conduct heat.
• Differentiate between metals and non-metals in terms of thermal conductivity.
• Identify factors that influence a material’s ability to transfer heat.+ Show more

Learning Objectives

• Explain the concept of urban heat islands and their causes
• Identify the effects of urban heat on cities and human health
• Describe mitigation strategies used to reduce urban heat effects+ Show more

Learning Objectives

• Understand the basic quantities used to describe motion: distance, time, and speed.
• Learn how to interpret and represent data related to motion.
• Calculate average speed given distance and time.

Learning Objectives

• Explain how resource availability influences population growth.
• Interpret logistic growth curves and concepts of carrying capacity.
• Analyze how competition affects birth, death, immigration, and emigration rates in ecosystems.+ Show more

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

• Identify fossil patterns that support the theory of plate tectonics
• Recognise similarities in rock formations across continents
• Interpret ocean-floor features as evidence of tectonic activity+ 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 how greenhouse gases influence Earth's climate
• Explain the effects of land-use changes on climate
• Analyse evidence of climate change and its consequences+ 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

• 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

• 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