Grade 7 Science Worksheets

Learning Objectives

• Differentiate between mass and weight and explain how weight changes with gravity.
• Describe how gravity affects the motion of falling objects near Earth.
• Use evidence from comparing objects with different masses to support ideas about net force and motion.

Learning Objectives

• Differentiate physical changes from chemical changes based on observable evidence.
• Identify indicators of chemical change such as color change, gas production, precipitate formation, and temperature change.
• Apply particle and matter concepts to predict whether a process is likely physical or chemical.

Learning Objectives

• Explain how energy transfers through conduction, convection, and radiation using everyday examples
• Compare how energy moves in solids, liquids, and gases for each transfer mechanism
• Describe how energy can transform from one form to another (chemical, electrical, thermal, light)+ Show more

Learning Objectives

• Explain how measurable data can support a scientific claim.
• Distinguish direct observations from interpretations in evidence-based reasoning.
• Use units, scales, and comparable methods to evaluate the reliability of conclusions.

Learning Objectives

• Define carrying capacity and explain why populations cannot grow indefinitely in an ecosystem.
• Identify limiting factors that regulate population size and relate them to ecosystem equilibrium.
• Use evidence and reasoning to predict how changes in limiting factors affect population growth.

Learning Objectives

• Identify biotic and abiotic components of an ecosystem and give examples of each
• Explain how energy flows from primary producers to consumers through feeding relationships
• Describe how abiotic factors influence growth, reproduction, and survival of organisms+ Show more

Learning Objectives

• Identify how competition, predation, and mutualism affect population sizes and community composition
• Explain how resource use overlap can lead to competitive exclusion and how niches allow coexistence
• Use examples to predict likely outcomes for population trajectories under different interaction types

Learning Objectives

• Explain how active transport moves substances against a concentration gradient using cellular energy and membrane proteins.
• Describe the sodium-potassium pump and its role in maintaining electrochemical gradients for nerve and muscle function.
• Compare active transport with passive diffusion and identify examples of vesicular transport (endocytosis and exocytosis).

Learning Objectives

• Explain how cells, tissues, and organ systems work together to maintain homeostasis in the human body.
• Describe how transport proteins and membrane pumps regulate nutrient levels, ion concentrations, and water balance.
• Connect hormone signaling and coordinated transport processes to maintaining stable internal conditions (such as blood glucose).

Learning Objectives

• Explain how mitochondria convert energy in cells through cellular respiration to produce ATP.
• Describe the roles of electron transport chains and membrane gradients in ATP synthesis.
• Relate mitochondrial structure (like inner membrane folds) to its function in energy conversion.+ Show more

Learning Objectives

• Explain how the nucleus houses genetic material and how it influences cell activities
• Describe the roles of the nuclear envelope and nuclear pores in regulating traffic between nucleus and cytoplasm
• Connect DNA, genes, transcription, translation, and protein synthesis to nucleus function

Learning Objectives

• Explain how specialized cell structures support specific functions in the body
• Compare red blood cells, neurons, and root hair cells using evidence from their morphology
• Use scientific vocabulary (nucleus, axon, diffusion, surface area, transport) to describe cell functions

Learning Objectives

• Explain how tectonic uplift, volcanic construction, and surface processes work together to shape landforms
• Compare how uplift rates versus erosion rates affect whether topography rises or is worn down
• Describe how climate influences weathering and sediment transport over geologic time+ Show more

Learning Objectives

• Define physical change and explain how it differs from chemical change at the particle level.
• Classify common physical changes, including phase changes and shape/appearance changes.
• Use reversible evidence (changing conditions) to justify why a change is physical.

Learning Objectives

• Explain what physical properties are and how they can be measured to help identify substances.
• Describe density, solubility, melting point, and boiling point and use these ideas to predict comparisons.
• Use electrical conductivity and hardness as observable physical properties when sorting materials.

Learning Objectives

• Explain how birth rate, death rate, immigration, and emigration affect population size and distribution
• Describe how resource availability and abiotic constraints can limit population growth in ecosystems
• Use examples from different biomes to predict how populations may fluctuate over time+ Show more

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

• Describe how material properties such as strength, stiffness, density, and durability affect load-bearing design
• Explain how materials behave under compression, tension, and bending and why that matters for long-term performance
• Evaluate material choices for frost and snow resilience in a Canadian prairie climate

Learning Objectives

• Identify signs of physical changes using evidence such as phase transitions, shape changes, dissolution, and consistent mass in closed systems.
• Explain how particle rearrangement and energy changes can cause observable changes without changing chemical identity.
• Distinguish physical change indicators from signs that would suggest a chemical change.

Learning Objectives

• Describe common observable indicators of chemical reactions, such as gas production, heat change, colour shifts, and precipitate formation.
• Connect specific observations to likely reaction pathways and what they may suggest about particles and mass changes.
• Use precise scientific language to record observations and distinguish between qualitative evidence and explanations.

Learning Objectives

• Interpret climate patterns using temperature gradients, sea-surface temperatures, wind, and precipitation records.
• Explain how uneven solar heating and surface properties drive atmospheric and ocean circulation.
• Describe how topography and ocean currents create regional climate differences.+ Show more

Learning Objectives

• Explain how groundwater is stored in aquifers and how it moves through Earth’s subsurface.
• Describe recharge and factors that affect how much groundwater is replenished.
• Evaluate how groundwater pumping and contamination can affect water quantity and water quality over time.

Learning Objectives

• Explain how natural processes and human needs influence the availability of Earth’s resources (land, freshwater, and air).
• Describe how precipitation patterns, groundwater storage, and ecosystem capacity affect access to resources.
• Analyze how droughts and floods, along with human use, can increase stress on shared systems.

Learning Objectives

• Explain how Earth’s tilt and yearly orbit change the Sun’s apparent height and day length.
• Compare seasonal patterns in the Northern and Southern Hemispheres.
• Describe how latitude (distance from the equator) affects the strength of seasonal daylight changes.

Learning Objectives

• Explain how decomposers (fungi and bacteria) break down dead organisms and waste and return nutrients to the ecosystem.
• Describe how decomposition supports plant growth and the continuity of matter in food chains.
• Compare how decomposers affect living and nonliving components of an ecosystem.

Learning Objectives

• Explain how adaptations help organisms survive and reproduce in their environments
• Differentiate structural, behavioral, and physiological adaptations
• Use evidence from a text to identify examples of adaptations

Learning Objectives

• Explain how energy flows through a food chain or food web using the idea of trophic levels.
• Describe why less energy and biomass are available at higher trophic levels.
• Use energy-transfer efficiency to predict how predator populations depend on prey energy.

Learning Objectives

• Explain how evidence from tests or validated models supports an engineering design evaluation.
• Interpret test results using performance criteria and realistic operating conditions.
• Identify possible failure modes and tradeoffs between competing criteria in design options.+ Show more

Learning Objectives

• Differentiate between biotic and abiotic factors in an ecosystem.
• Explain how abiotic conditions influence which organisms survive and grow.
• Describe how changes in abiotic factors can affect biotic interactions and population sizes.

Learning Objectives

• Identify major abiotic factors (temperature, moisture, light, soil nutrients, pH) and describe how each affects organisms.
• Explain how daily and seasonal changes in abiotic conditions can create stress or opportunities for populations.
• Use carrying capacity and population resilience to predict how organisms may respond to extreme abiotic events.

Learning Objectives

• Explain how running water, glaciers, wind, and gravity erode rocks and transport sediment
• Describe how transport energy and distance affect sediment grain size and sorting
• Interpret clues from sedimentary signatures to reconstruct past environments

Learning Objectives

• Explain how particle arrangement, spacing, and motion differ in solids, liquids, and gases.
• Predict how temperature and pressure can cause substances to change state.
• Use observable properties to classify common materials by state of matter.

Learning Objectives

• Explain qualitatively how gas pressure changes with applied force and container conditions.
• Describe how gas volume responds when a gas is confined or allowed to expand.
• Relate diffusion and temperature changes to observable gas behavior in everyday situations.+ Show more

Learning Objectives

• Explain the difference between invention and innovation using historical examples.
• Trace how needs, materials, empirical evidence, and incremental changes contribute to technological advancement.
• Describe how diffusion and cumulative modification shape technological lineages over time.

Learning Objectives

• Explain how engineering standards and codes reduce risk by setting minimum safety requirements for structures and devices.
• Identify examples of safety factors, load ratings, grounding, and personal protective measures used to meet code expectations.
• Describe how documentation and inspection-related records support reliable performance and compliance.

Learning Objectives

• Explain how diagrams, scale models, and quantitative representations help predict the behavior of a system.
• Interpret model outputs and identify assumptions, limitations, and scaling effects that affect accuracy.
• Distinguish between different model types (e.g., free-body diagrams, circuit schematics, and block diagrams) and what each is used for.

Learning Objectives

• Explain how standardized symbols, labels, and units improve clarity in technical communication.
• Identify key differences between orthographic, isometric, and schematic representations.
• Use conventions for dimensions and tolerances to make a drawing or specification easier to evaluate and replicate.

Learning Objectives

• Distinguish speed, velocity, and acceleration using everyday motion examples.
• Classify quantities as scalars or vectors and explain why direction matters for velocity.
• Interpret motion scenarios qualitatively and relate displacement, time, and rate of change.

Learning Objectives

• Explain what saturation means in a solvent at a specific temperature and pressure
• Describe how supersaturation can lead to crystallization and precipitation
• Identify real-life examples that show solubility limits and phase change behavior

Learning Objectives

• Explain how model evaluation compares predictions to evidence.
• Identify assumptions that may be wrong when model outputs do not match data.
• Describe how computational simulations and input changes help test assumptions.+ Show more

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 how circulatory, respiratory, digestive, and nervous systems work together to support homeostasis.
• Describe how oxygen and nutrients move from their sources to body cells using interdependent system processes.
• Use evidence from human mammalian systems and plant vascular transport to compare how organisms distribute needed materials.

Learning Objectives

• Explain how atoms are conserved as matter cycles through organisms during digestion, biosynthesis, and respiration
• Trace the flow of carbon and nitrogen from ingested food to cellular biomolecules and eventual waste products
• Use biochemical pathway ideas (building and breaking down macromolecules) to describe matter recycling

Learning Objectives

• Explain how natural climate records (ice cores, sediment layers, and tree rings) reveal past temperature and precipitation.
• Describe how modern instruments confirm and refine recent climate trends.
• Identify major climate drivers that can change Earth’s energy balance and circulation over time.

Learning Objectives

• Explain how energy transforms during photosynthesis and cellular respiration
• Describe how chloroplasts and mitochondria help convert energy into usable ATP
• Compare how active and resting tissues use energy differently

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 design criteria for success can be measurable or observable in a science design problem.
• Identify common constraints (time, materials, cost, safety) and describe how they affect possible solutions.
• Describe trade-offs and improvement by connecting test evidence to criteria rather than appearance.+ Show more

Learning Objectives

• Explain how human activities affect land, water, air, and ecosystems using scientific indicators and data.
• Use examples of monitoring tools (water-quality indicators, remote sensing, air measurements) to infer trends in human impacts.
• Evaluate mitigation strategies and describe trade-offs between economic needs and long-term environmental resilience.