Grade 7 Science Worksheets

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 stationary and mobile phases cause chromatographic separation
• Describe how molecular polarity influences movement through chromatography
• Calculate retention factors using compound and solvent distances+ 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

• Explain how energy transfers through trophic levels in a food web.
• Describe why only a few trophic levels can be supported by available energy and biomass.
• Distinguish between producers, consumers, and how energy transfer efficiency affects predator populations.

Learning Objectives

• Explain why surface-area-to-volume ratio limits how large cells can be
• Describe how diffusion and transport depend on exchange surfaces
• Identify adaptations that increase exchange efficiency in cells and organisms+ 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

• Understand the relationship between heat, mass, and temperature change.
• Learn about specific heat capacity and how to calculate heat energy using Q=mcΔT.
• Identify units of heat such as joules and watts.+ 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 energy transfer affects particle motion and arrangement during changes of state.
• Describe and compare melting, freezing, evaporation, and condensation using the particle model.
• Predict how temperature changes (or stays steady) during a phase change and explain why.

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

• Identify different types of variables in controlled experiments.
• Understand strategies for managing variables to ensure valid results.
• Recognize the importance of control groups and replication in scientific testing.+ 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

• Distinguish temperature from internal energy using the kinetic particle model
• Identify thermal energy sources in natural and built environments
• Explain heat flow from higher internal energy to lower internal energy+ Show more

Learning Objectives

• Explain how calibration and uncertainty affect temperature measurement accuracy
• Describe how sensor response time affects changing temperature measurements
• Explain how spatial placement changes the temperature a sensor reports+ Show more

Learning Objectives

• Compare thermal conductivity across metals, ceramics, polymers, and composites
• Explain how free electrons contribute to heat conduction in metals
• Explain how lattice vibrations transfer energy through non-metal solids+ Show more

Learning Objectives

• Explain how temperature affects solubility of solids and gases
• Predict solution changes using solubility and saturation principles
• Explain how solvent polarity affects dissolution in water+ Show more

Learning Objectives

• Identify observable evidence that indicates a chemical change
• Explain how chemical properties affect reactions with acids and bases
• Interpret how pH influences chemical transformation conditions+ Show more

Learning Objectives

• Define physical properties and describe how they are measured
• Use density measurements to help identify and classify substances
• Interpret melting point ranges as evidence of sample purity+ Show more

Learning Objectives

• Describe how pore size determines particle retention during filtration
• Compare filtration and sedimentation using particle settling behaviour
• Identify why dissolved solutes pass through typical filter media+ Show more

Learning Objectives

• Compare elements and compounds using atomic composition
• Interpret chemical formulas to identify fixed atomic ratios
• Explain how bonding influences observable properties of compounds+ Show more

Learning Objectives

• Interpret melting point ranges as evidence of possible contamination
• Explain how boiling point behavior can indicate sample contamination
• Relate ionic contamination to increased conductivity in solutions+ Show more

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

• Explain how resource availability and competition affect population growth rates
• Interpret logistic growth curves and identify the carrying capacity concept
• Relate birth, death, immigration, and emigration to population change within an ecosystem

Learning Objectives

• Explain the difference between exponential growth and logistic growth using the idea of carrying capacity.
• Identify limiting factors that can reduce or regulate population size, including biotic and abiotic factors.
• Distinguish density-dependent from density-independent influences on population growth.

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

• Understand the concept of solubility and what it indicates about a substance.
• Identify common examples of solubility in everyday life.
• Explain how temperature, solvent polarity, and pressure influence solubility.+ Show more

Learning Objectives

• Understand the fundamental steps of engineering design processes, including problem framing, criteria, and constraints.
• Learn how to write clear specifications, use trade-off matrices, and evaluate feasibility for materials, costs, and environmental factors.
• Analyze simple mechanical systems and environmental remediation prototypes to see how problem constraints influence solution selection.+ Show more

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

• Define net force as the vector sum of forces acting on an object
• Identify balanced and unbalanced forces using free-body diagrams
• Explain how force and mass relate to acceleration+ Show more

Learning Objectives

• Describe the hierarchy of biological organization from individual organisms to the biosphere.
• Understand the roles of producers, consumers, and decomposers within ecosystems.
• Explain how energy flows through trophic levels and affects ecosystem stability.+ Show more

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

• Identify the main idea of a passage about human impacts on ecosystems
• Describe key human actions that change habitats and affect biodiversity
• Use vocabulary from the passage to answer reading questions

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

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

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 why surface-area-to-volume ratio limits cell size and how it affects cell efficiency.
• Explain adaptations like membrane folding, microvilli, and compartmentalization that increase exchange surfaces.
• Describe how multicellular organisms develop specialized structures and systems to overcome surface area limitations.+ Show more

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

• Understand the different types of filtration techniques used in science.
• Identify various filtration materials and pore sizes.
• Explain how filtration separates heterogeneous mixtures like suspensions and precipitates.+ Show more