Grade 7 Science Worksheets

Learning Objectives

• Explain conservation of energy during temperature, state, or motion changes
• Identify how energy is transferred between a system and its surroundings
• Use friction to describe energy redistribution between motion and thermal energy+ Show more

Learning Objectives

• Define acceleration as the rate of change of velocity, including direction changes
• Explain how inertia relates mass to acceleration when the same net force is applied
• Interpret velocity-time patterns to determine whether acceleration is constant or changing+ Show more

Learning Objectives

• Explain how slope on a position-time graph relates to velocity
• Explain how slope on a velocity-time graph relates to acceleration
• Interpret patterns on motion graphs to describe constant versus changing motion+ Show more

Learning Objectives

• Understand the role of tectonic uplift in shaping mountains.
• Identify volcanic activity as a surface process influencing landscape change.
• Explain how climate and weathering contribute to landscape features.+ Show more

Learning Objectives

• Explain how producers, consumers, and decomposers are connected in a food web.
• Describe how energy flows through multiple pathways in a food web.
• Evaluate how species changes can cascade through a food web and affect ecosystem stability.+ Show more

Learning Objectives

• Identify the main idea of how wetlands help manage water across a landscape
• Describe hydrological functions of wetlands using supporting details from the passage
• Explain how wetland water storage can reduce flooding after heavy rainfall

Learning Objectives

• Understand the concept of conservation of mass in chemical and physical changes.
• Identify factors that influence mass measurements and their accuracy.
• Differentiate between precise and accurate mass measurements in experiments.+ Show more

Learning Objectives

• Explain how Earth’s axial tilt and yearly orbit affect seasons and day length.
• Describe how Earth’s rotation creates the Sun’s apparent daily motion.
• Use Earth-Sun cycle concepts to interpret calendar and timekeeping ideas.

Learning Objectives

• Explain how conduction transfers thermal energy through particle collisions and electron movement in solids
• Compare thermal conductivity of common building materials and predict heat-flow direction
• Use contact resistance and material interfaces to describe temperature gradients in real structures

Learning Objectives

• Explain the basic parts of a lever (fulcrum, effort, load) and how torque relates to lever action
• Describe how pulley systems change effort and direction of force
• Calculate ideal mechanical advantage for simple lever and pulley setups using basic arithmetic+ Show more

Learning Objectives

• Explain that energy can change forms while total energy is conserved
• Identify examples of mechanical, electrical, chemical, and thermal energy transformations
• Use energy pathways to describe how devices convert energy in real systems+ Show more

Learning Objectives

• Define trophic efficiency and explain why energy decreases between trophic levels.
• Interpret how energy pyramids represent available energy at higher trophic levels.
• Use evidence from examples to predict how many consumer levels can be supported.

Learning Objectives

• Explain how predator and prey populations influence each other through feedback loops over time
• Describe how predator-prey changes can ripple through a community and alter ecosystem interactions
• Use cause-and-effect reasoning to predict what may happen when one population increases or decreases

Learning Objectives

• Describe how energy moves through a food web from producers to consumers and decomposers
• Identify trophic levels and dependency chains in an interconnected food web
• Explain how adding or removing a species can change trophic connections and network stability

Learning Objectives

• Explain how net force affects an object's velocity over time.
• Differentiate between balanced and unbalanced forces and predict motion outcomes.
• Identify how friction, air resistance, and gravity change motion near Earth.

Learning Objectives

• Understand how different pollutants impact ecosystems and organisms.
• Identify sources and pathways of environmental contamination.
• Analyze ecological consequences of nutrient runoff, hydrocarbons, and airborne deposition.+ Show more

Learning Objectives

• Explain how internal and external processes shape Earth’s surface
• Identify surface-process evidence such as rock strata, landforms, and hazard-history patterns
• Use relationships between rock layers and landforms to infer past events

Learning Objectives

• Explain how plate tectonics can cause rapid geologic hazards such as earthquakes and volcanic eruptions
• Describe how weathering, erosion, and deposition gradually reshape Earth’s surface
• Use geologic evidence (fault features, lava flows, and ash or sediment layers) to connect past processes to present landforms

Learning Objectives

• Classify rocks as igneous, sedimentary, or metamorphic based on origin and observable features.
• Use evidence such as mineral content, grain size, and rock structures to support a rock-type identification.
• Explain how heat, pressure, and fluids change existing rocks into metamorphic rocks.

Learning Objectives

• Compare how weather patterns and climate differ using time scales and data variability
• Describe how pressure changes and air mass movement can influence weather at different locations
• Interpret weather data examples to identify patterns across time and location+ Show more

Learning Objectives

• Identify the atmosphere, hydrosphere, geosphere, and biosphere and describe what each includes.
• Explain how matter and energy move between spheres (for example, water and gases).
• Describe how changes in one Earth system sphere can affect other spheres.

Learning Objectives

• Explain how greenhouse gases can alter temperature and precipitation patterns over time.
• Describe how land clearing can change water storage, evaporation, and the biosphere.
• Model how changes in the geosphere can affect erosion and sediment flow into waterways.+ Show more

Learning Objectives

• Explain how natural records and modern instruments provide evidence for climate patterns over time.
• Identify major climate drivers that can change Earth’s energy balance and circulation.
• Describe how scientists distinguish past conditions using ice cores, sediment layers, and tree rings.

Learning Objectives

• Understand different methods of measuring biodiversity, including richness, evenness, and habitat heterogeneity.
• Interpret what various biodiversity metrics reveal about ecosystem resilience and health.
• Evaluate the relationship between habitat complexity and species assemblages.+ Show more

Learning Objectives

• Identify common observable indicators of chemical reactions, such as gas production, heat exchange, colour changes, and precipitate formation.
• Describe reaction evidence using clear scientific language and connect observations to possible particle interactions and mass changes.
• Interpret qualitative evidence to make reasonable predictions about reaction types and the extent of a reaction.

Learning Objectives

• Understand how to interpret and draw free-body diagrams for various scenarios.
• Learn how to decompose forces on inclined surfaces into perpendicular components.
• Apply vector addition to determine net force magnitude and direction in different contexts.+ Show more

Learning Objectives

• Understand the principle of conservation of mass in physical and chemical changes.
• Recognize examples of mass conservation in real-world scenarios.
• Identify the components of a sealed system and how mass is measured before and after reactions.+ Show more

Learning Objectives

• Identify components of the carbon cycle
• Understand how carbon moves between air, organisms, and soils
• Recognize the roles of photosynthesis, respiration, and decomposition+ Show more

Learning Objectives

• Explain heat transfer models that track thermal energy flow using conduction, convection, and radiation
• Predict the direction of heat transfer based on temperature differences
• Connect observable temperature changes to invisible energy transfer processes

Learning Objectives

• Identify different types of weathering processes and their effects on rocks.
• Explain how physical, chemical, and biological weathering contribute to landscape change.
• Describe factors influencing weathering rates and landform development.+ Show more

Learning Objectives

• Analyze how forces, machine function, and structural safety work together in an integrated design.
• Use criteria to compare alternative design options for real-world conditions such as wind, snow, and loads.
• Apply basic calculations and evidence to justify a reasoned choice among design alternatives.

Learning Objectives

• Understand the different types of energy changes in chemical reactions.
• Distinguish between exothermic and endothermic reactions based on energy transfer.
• Explain how bond breaking and formation relate to energy absorption and release.+ Show more

Learning Objectives

• Explain conservation of energy using the idea that energy is transferred and changes form but is not lost
• Identify evidence of energy transfer using temperature changes and changes in motion
• Use energy models to describe how friction can convert mechanical energy into thermal energy

Learning Objectives

• Explain how a lever changes force and direction of a push or pull using fulcrum placement and lever arms.
• Describe how pulley systems can increase mechanical advantage and change the direction of force.
• Calculate and compare input (effort) and output (load) forces using simple mechanical advantage relationships.

Learning Objectives

• Translate distance–time and speed–time data into motion graphs and interpret what the graph shows.
• Explain how slope relates to rate of change in motion graphs and how to find average speed from distance–time graphs.
• Use graphs to estimate instantaneous speed and to compare two motions using quantitative evidence.

Learning Objectives

• Explain how temperature changes create density differences that drive convection in fluids
• Differentiate natural convection from forced convection using real-world examples
• Identify key features of convection systems such as buoyancy and boundary layers+ Show more

Learning Objectives

• Understand how to connect evidence to reasoning in scientific arguments.
• Identify specific data values, graph features, or direct observations that support claims.
• Evaluate the strength of scientific arguments, including addressing limitations and avoiding unsupported cause-and-effect claims.+ Show more

Learning Objectives

• Understand the concepts of static and kinetic friction and their effects on motion.
• Identify examples of friction and aerodynamic drag in real-world scenarios.
• Describe how surface texture and normal force influence the coefficient of friction.+ Show more

Learning Objectives

• Describe how abiotic factors such as temperature, moisture, light, soil nutrients, and pH influence species distributions.
• Explain how seasonal and daily fluctuations affect populations and ecosystems.
• Identify the impact of extreme environmental events on species survival and resilience.+ Show more

Learning Objectives

• Identify observable signs of chemical changes such as colour change, gas evolution, precipitate formation, temperature change, or odour alteration.
• Differentiate between physical and chemical changes at the particle level, focusing on bond reorganization and energy transfer.
• Understand real-world examples of chemical changes, including oxidation and combustion, and interpret their processes at the particle level.

Learning Objectives

• Explain what makes a pure substance different from a mixture in terms of uniform composition and characteristic properties.
• Differentiate elements and compounds and identify examples using chemical and physical evidence.
• Use fixed melting/boiling points and other properties to distinguish pure substances from substances with impurities.

Learning Objectives

• Explain how sound wave behavior (amplitude, frequency, and spreading with distance) affects what we hear as loudness and pitch.
• Describe how reflection, echo formation, and absorption depend on the surfaces and materials sound waves encounter.
• Connect physical sound wave properties to the brain’s interpretation of sound perception.

Learning Objectives

• Identify a claim and the specific data or observation used as evidence.
• Explain how evidence supports a claim using correct relationships and units.
• Compare alternative explanations and choose which is supported more strongly by the evidence.+ Show more

Learning Objectives

• Understand the concept of fair tests in scientific experiments.
• Identify variables that influence experimental fairness.
• Learn to use appropriate measurement tools and units.+ Show more

Learning Objectives

• Distinguish biotic factors from abiotic factors in an ecosystem.
• Explain cause-and-effect relationships between abiotic conditions and resource access, shelter, and survival for organisms.
• Describe how gradients in abiotic factors can shape patterns in plant, animal, and microbe communities.

Learning Objectives

• Describe the difference between mixtures and pure substances.
• Identify characteristics of heterogeneous and homogeneous mixtures.
• Understand separation methods based on physical properties.+ Show more

Learning Objectives

• Understand how technology affects society and the environment through benefits and costs.
• Identify ethical considerations related to technology, including fairness, privacy, and responsibility.
• Analyze trade-offs involved in technological development and use.+ Show more

Learning Objectives

• Describe common forms of energy and how they change in everyday systems
• Explain energy transformations while conserving total energy
• Identify where energy appears as mechanical, electrical, chemical, and thermal energy in a real-world example