Grade 7 Science Worksheets

Learning Objectives

• Describe how ecological models represent ecosystem relationships using inputs, assumptions, and outputs.
• Identify the difference between qualitative and quantitative modelling approaches.
• Explain why model predictions must be checked against real observations.+ Show more

Learning Objectives

• Explain how protons, neutrons, and electrons determine an atom’s properties.
• Use atomic number and mass number to identify elements and describe isotopes.
• Describe how historical atomic models and electron arrangements help explain periodic trends.+ Show more

Learning Objectives

• Identify the purpose of a technical text.
• Determine the main idea using evidence from the passage.

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Explain how unbalanced forces cause changes in motion.
• Use free-body diagrams and quantitative reasoning to analyze forces.+ Show more

Learning Objectives

• Understand and explain Newton's three laws of motion through real-world examples.
• Identify situations where inertia, acceleration, and action–reaction pairs occur in everyday life.
• Relate algebraic proportion ideas to force and mass to interpret cause-and-effect relationships.+ Show more

Learning Objectives

• Define kinetic and potential energy using everyday phenomena.
• Explain how height and motion influence energy forms.
• Illustrate energy transfer among system components.+ Show more

Learning Objectives

• Use Q = mcΔT to calculate thermal energy needed to change a substance’s temperature
• Identify and convert key units (joules and watts) used in heat and power problems
• Explain how heat-transfer rate depends on area, temperature gradient, and time+ Show more

Learning Objectives

• Explain how temperature changes cause thermal expansion and contraction in solids and affect volume and density.
• Describe how phase changes (melting/freezing) depend on temperature and how they influence systems.
• Use particle motion to connect microscopic behavior to macroscopic changes such as pressure, volume, and flow.+ Show more

Learning Objectives

• Identify and describe conduction, convection, and radiation as three primary modes of thermal energy transfer.
• Explain the molecular mechanisms behind each mode using grade-appropriate particle ideas.
• Compare the typical media and relative rates (slow/fast or fast/slow) for heat transfer in different situations.

Learning Objectives

• Explain how surface albedo and emissivity affect radiative heat exchange between surfaces and the environment
• Describe how colour and coatings change solar gain and infrared heat transfer
• Compare how reflective roofs and low-emissivity glazing help manage net radiative flux during different times of day and seasons

Learning Objectives

• Explain the purpose and types of ecological models used in environmental science.
• Identify inputs, limitations, and applications of ecological models for regional ecosystems.
• Describe how models support interpretation of ecological data and verify predictions against observations.+ Show more

Learning Objectives

• Explain how mechanical energy can transfer between kinetic and potential forms during motion (e.g., pendulums and springs).
• Describe mechanical energy conservation in ideal systems and account for observable energy losses in real systems.
• Use energy bookkeeping ideas to distinguish closed vs. open systems and nonmechanical energy transfers (like heat and sound).

Learning Objectives

• Define and distinguish morphological, physiological, and behavioral adaptations with grade-appropriate examples.
• Explain how specific traits improve survival and reproductive success in different environments.
• Identify and analyze adaptive trade-offs and their ecological significance.+ Show more

Learning Objectives

• Explain that acceleration describes how quickly velocity changes, including whether the change is positive or negative relative to a chosen direction.
• Use Newton’s second law (Fnet = m·a) to connect net force, mass (inertia), and acceleration.
• Distinguish constant acceleration from changing acceleration by interpreting patterns on velocity–time descriptions.

Learning Objectives

• Understand the steps involved in the design process from defining requirements to evaluating alternatives.
• Identify key performance objectives such as load capacity, stiffness, and serviceability.
• Learn how to use decision-making tools like decision matrices and sketches to compare design options.+ Show more

Learning Objectives

• Define specific heat capacity and explain how it relates to thermal energy and temperature change
• Use the equation Q = m·c·ΔT to calculate heating energy (in J or kJ) for a given substance
• Convert between common mass and temperature units and report answers with correct units

Learning Objectives

• Define and describe what a physical change is and how it differs from a chemical change.
• Identify common examples of physical changes in everyday life.
• Explain the reversibility of physical changes under different conditions.+ Show more

Learning Objectives

• Understand the concept of mass conservation in closed systems.
• Learn how to measure and compare mass before and after chemical changes.
• Recognize the factors that influence observed mass differences, such as gases or dissolved species.+ Show more

Learning Objectives

• Understand key concepts of descriptive statistics such as mean, median, and mode.
• Interpret measures of dispersion including interquartile range, variance, and the role of outliers.
• Identify and analyze simple graphical summaries of data.+ Show more

Learning Objectives

• Understand the function of chloroplasts in plant cells and some protists.
• Identify the processes involved in photosynthesis within chloroplasts.
• Explain the significance of pigments in thylakoid membranes for energy capture.+ Show more

Learning Objectives

• Analyze how increases in human population and consumption alter demand for water, energy, land, and materials.
• Evaluate the effects of population growth and urbanization on ecosystems and resource cycles.
• Compare regional examples to understand how consumption patterns influence environmental pressure.+ Show more

Learning Objectives

• Understand the concept of biodiversity indices and what they measure.
• Identify different biodiversity metrics such as species richness and evenness.
• Interpret diversity values across various habitats.+ Show more

Learning Objectives

• Describe the processes involved in decomposition and nutrient cycling.
• Identify roles of detritivores, fungi, bacteria, and abiotic factors in decomposition.
• Explain carbon and nitrogen transformations during decomposition.+ Show more

Learning Objectives

• Understand how Earth's rotation causes day and night
• Describe the cycle of day and night as observed from Earth's surface
• Identify the tilt of Earth's axis and its role in solar patterns

Learning Objectives

• Distinguish between producers and consumers in a food web using trophic roles.
• Explain how energy transfer through trophic levels affects energy pyramids.
• Identify primary, secondary, and tertiary consumers and predict their relationships.

Learning Objectives

• Understand the principles of ethical reporting and data integrity in scientific practice.
• Identify conventions for effective graphical annotation and peer review processes.
• Recognize the importance of community consultation and responsible data sharing.+ Show more

Learning Objectives

• Analyze evidence for climate change drivers such as greenhouse gases and land use.
• Assess impacts of climate change on sea levels, precipitation, and agriculture.
• Interpret temperature and CO2 records and understand carbon-cycle exchanges.+ Show more

Learning Objectives

• Understand the defining properties of pure substances such as fixed melting and boiling points, density, and reactivity.
• Distinguish between elements and compounds using physical and chemical tests.
• Identify examples of pure substances, including local minerals and common compounds.+ Show more

Learning Objectives

• Describe common failure modes such as buckling, fatigue cracking, shear and bending fractures, and foundation failures.
• Explain the principles of limit states design, safety factors, and redundancy in mitigating structural risks.
• Relate failure mechanisms to geometric, material, and loading characteristics using real-world exemplars like bridge deck delamination and column buckling.

Learning Objectives

• Explain how population size changes over time due to births, deaths, immigration, and emigration.
• Identify limiting factors that reduce population growth.
• Describe how predator–prey interactions can create oscillations in population numbers.+ Show more

Learning Objectives

• Understand how mathematical models quantify trait frequencies, selection coefficients, and population dynamics.
• Apply basic Hardy-Weinberg principles and frequency calculations to real-world genetic data.
• Interpret graphical displays of fitness differentials and their implications for evolution.+ Show more

Learning Objectives

• Analyze the societal, economic, and environmental impacts of various technologies.
• Evaluate short- and long-term consequences of technological developments.
• Examine ethical considerations and policy responses related to technology impacts.+ Show more

Learning Objectives

• Define temperature as a measure of average kinetic energy of particles
• Explain heat as energy transfer due to a temperature difference
• Describe heat transfer by conduction, convection, and radiation

Learning Objectives

• Identify and describe physical properties of substances such as density, solubility, hardness, electrical conductivity, magnetism, and flammability.
• Understand how physical and chemical properties are used to classify substances into elements, compounds, and mixtures.
• Apply observation and measurement techniques to distinguish different types of materials based on their properties.

Learning Objectives

• Identify different types of mixtures such as homogeneous and heterogeneous
• Describe common physical separation methods including filtration, distillation, chromatography, and magnetic separation
• Explain how differences in solubility, particle size, and boiling points influence separation techniques+ Show more

Learning Objectives

• Understand the differences in thermal conductivity among metals, ceramics, polymers, and composites.
• Explain how free electrons and lattice vibrations contribute to heat conduction.
• Analyze how factors like density, porosity, and moisture influence a material's effective thermal conductivity.+ Show more

Learning Objectives

• Understand the importance of accuracy and precision in scientific measurements
• Recognize different types of measurement errors
• Learn how to select appropriate measurement instruments+ Show more

Learning Objectives

• Understand the principles and instruments used for temperature measurement, including liquid-in-glass, bimetallic, and digital thermometers.
• Explain the concepts of Celsius scale, fixed points, and calibration for accurate temperature readings.
• Identify sources of measurement uncertainty and environmental influences like radiation and air flow on temperature recordings.+ Show more

Learning Objectives

• Understand how to clearly define a design problem with measurable constraints.
• Identify real-world examples of specifying performance, material, cost, and safety criteria.
• Translate societal and environmental needs into quantitative specifications.+ Show more

Learning Objectives

• Understand different prototyping approaches including scaled physical models, digital models, and laboratory rigs.
• Compare advantages and limitations of each prototyping method for assessing structural response.
• Identify instrumentation like strain gauges and displacement transducers used to quantify prototype behavior.+ Show more

Learning Objectives

• Identify and differentiate between igneous, sedimentary, and metamorphic rocks based on origin and features.
• Understand the processes involved in the formation of each rock type.
• Analyze mineral content, grain size, and structures to classify rocks.+ Show more

Learning Objectives

• Understand the evidence supporting the theory of plate tectonics, including fossil distribution, matching continents, and seafloor features.
• Identify features such as mid-ocean ridges, trenches, volcanoes, and earthquake activity that indicate tectonic plate movement.
• Explain how rock types and fossil assemblages help reconstruct past continental arrangements.+ Show more

Learning Objectives

• Explain how uneven solar heating and surface properties drive atmospheric and ocean circulation.
• Use temperature, wind, and precipitation records to interpret regional climate patterns such as El Niño and monsoons.
• Describe how topography and ocean currents modify local climate conditions.

Learning Objectives

• Identify observations that provide evidence of chemical reactions
• Explain how new substances form during chemical reactions
• Describe conservation of matter using sealed-system mass measurements+ Show more

Learning Objectives

• Identify atomic models that represent particles and structures.
• Interpret formulas and atomic number using particle information.
• Compare covalent molecules with ionic crystal lattices.+ Show more

Learning Objectives

• Describe how natural resources become synthetic materials.
• Explain how feedstocks support material production.
• Explain how polymerization forms long polymer chains.+ Show more

Learning Objectives

• Describe observable indicators of chemical properties such as gas evolution, color change, and precipitate formation.
• Differentiate between chemical stability of noble metals and reactive non-metals.
• Explain how chemical properties influence material suitability and separation methods.+ Show more

Learning Objectives

• Define control conditions and comparison conditions in an experiment.
• Explain how keeping variables the same (except the independent variable) improves credibility of results.
• Describe practical steps such as consistent timing, tool calibration, and standardized handling to reduce unrelated factors.+ Show more