Grade 7 Science Worksheets

Learning Objectives

• Identify independent, dependent, and controlled variables in a science investigation
• Explain why controlled variables make comparisons fair
• Use tables and graphs to connect changes in the dependent variable to the independent variable

Learning Objectives

• Define states of matter as different arrangements of particles and different energy regimes
• Describe common phase changes: melting, freezing, vaporization, condensation, and sublimation
• Explain how temperature and pressure influence phase transitions and relate them to properties such as density and viscosity+ Show more

Learning Objectives

• Identify the key phases shown on a temperature–time heating curve for a pure substance
• Explain why temperature stays constant during melting and boiling plateaus
• Connect energy transfer to particle arrangement changes during phase changes+ Show more

Learning Objectives

• Understand how human activities influence Earth's atmosphere and other spheres
• Identify cause-and-effect relationships related to fossil fuel burning
• Analyze the feedback mechanisms resulting from environmental changes

Learning Objectives

• Define acceleration as the rate of change of velocity, including direction (positive or negative).
• Explain how mass (inertia) affects acceleration when the same net force acts on different objects.
• Identify constant vs. changing acceleration from how velocity changes over time.+ Show more

Learning Objectives

• Explain how fair tests keep all variables the same except the intended design variable.
• Select appropriate measurement tools and explain why units and scales matter.
• Describe how consistent testing procedures help attribute differences to the design rather than the setup.

Learning Objectives

• Explain how limited resources affect survival and reproduction in ecosystems.
• Describe how changes in environmental conditions can lead to population increases or decreases.
• Use the terms limiting factor and carrying capacity to interpret population changes.

Learning Objectives

• Understand and explain the concept of conduction as a mode of energy transfer
• Identify different mechanisms of energy transfer: conduction, convection, and radiation
• Analyze everyday examples of energy transfer methods+ Show more

Learning Objectives

• Identify common physical properties of matter and explain how they can be observed or measured
• Use physical property clues to distinguish between substances and to reason about separating mixtures
• Connect changes in behavior (heat response and dissolving) to specific physical properties

Learning Objectives

• Explain how cells communicate using chemical signals and electrical signals
• Describe how receptor proteins trigger intracellular pathways that change cell activity
• Compare direct cell-to-cell connections (gap junctions and plasmodesmata) with signal reception through receptors+ Show more

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter during decomposition.
• Describe how carbon and nitrogen are transformed and recycled through decomposition.
• Identify abiotic factors that affect decomposition rates and soil fertility.+ Show more

Learning Objectives

• Distinguish quantitative observations from qualitative observations in everyday science situations.
• Choose appropriate metric units and tools for measuring length, mass, and volume.
• Develop a simple scientific inquiry plan that includes a question, hypothesis, measurements, and error awareness.

Learning Objectives

• Explain how fitness relates to survival and reproduction in a particular environment
• Describe how environmental conditions can change selection pressures and favor different traits
• Connect fitness to heritable variation and how populations can change over time

Learning Objectives

• Explain how predator-prey interactions create population feedback loops in ecosystems.
• Use cause-and-effect reasoning to predict how changes in predator or prey populations affect other species.
• Identify the main idea of short ecological paragraphs and match them to appropriate captions.+ Show more

Learning Objectives

• Understand the role of oral histories and place-based knowledge in ecological understanding.
• Identify examples of stewardship and land-use practices from Indigenous communities in Alberta.
• Recognize the importance of integrating different knowledge systems for interpreting environmental patterns.+ Show more

Learning Objectives

• Identify standard units and explain why instrument choice affects measurement accuracy and precision.
• Read measurement scales correctly and estimate uncertainty from the smallest scale division.
• Distinguish systematic error from random error and describe how each affects repeated measurements.+ Show more

Learning Objectives

• Explain how ecological inquiry uses questions, observations, and evidence to evaluate relationships in ecosystems.
• Identify measurable variables and justify why they are chosen within defined limits.
• Interpret ecological data while considering natural variability and human impacts.

Learning Objectives

• Explain how births, deaths, immigration, and emigration affect population size over time
• Describe limiting factors and carrying capacity in population growth
• Use predator–prey relationships to explain population oscillations+ Show more

Learning Objectives

• Explain how weathering, transport, deposition, and lithification form sedimentary rocks.
• Compare mechanical vs. chemical weathering and describe how each produces different sediment materials.
• Describe how depositional environments (deltas, beaches, floodplains) can create distinct sedimentary structures and fossils.

Learning Objectives

• Explain conservation of energy using energy transfers among forms such as mechanical and thermal energy
• Use friction and warming scenarios to describe how motion energy can become thermal energy
• Interpret simple energy model ideas (systems, surroundings, and energy redistribution) to predict temperature or motion changes

Learning Objectives

• Understand the patterns and frequency of earthquakes through data analysis.
• Identify the geographic distribution of earthquakes and their recurrence intervals.
• Interpret hazard maps and probabilistic forecasts related to earthquakes.+ Show more

Learning Objectives

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

Learning Objectives

• Define momentum and explain its role in collisions.
• Differentiate between elastic and inelastic collisions.
• Describe how momentum is conserved during collisions.+ Show more

Learning Objectives

• Define potential energy and describe its types, focusing on gravitational potential energy.
• Explain how elevation affects the potential energy of an object.
• Identify real-life examples where gravitational potential energy is stored.

Learning Objectives

• Understand how devices convert different forms of energy.
• Identify examples of energy transformations in real-world devices.
• Explain the principles of energy transfer and conservation.+ Show more

Learning Objectives

• Interpret quantitative test data from bridge experiments.
• Identify variables affecting bridge load capacity and mass.
• Apply iterative design principles to optimize bridge performance.+ Show more

Learning Objectives

• Identify the three main ways heat energy moves: conduction, convection, and radiation.
• Explain how temperature differences drive energy transfer.
• Relate thermal conductivity to everyday materials like metals and insulators.+ Show more

Learning Objectives

• Identify friction as a contact force that opposes motion between surfaces.
• Explain how friction affects whether an object speeds up, moves at a constant speed, or slows down.
• Distinguish weight and normal force as different force types acting on an object on a surface.

Learning Objectives

• Explain net force as the vector sum of forces, including direction.
• Use words and simple sign conventions to predict the direction of motion.
• Identify when forces are balanced and when an object’s motion changes.

Learning Objectives

• Identify the purpose of an engineering design.
• Describe key constraints and how they affect a structure’s design choices.
• Explain how engineers use materials and load ideas to improve reliability.

Learning Objectives

• Identify the purpose of models in a system
• Explain how models help predict or represent system behavior
• Describe key limitations of models and why assumptions matter

Learning Objectives

• Explain how surface area and volume change when an object is scaled up or down.
• Predict how those changes affect heat transfer and performance at different sizes.

Learning Objectives

• Identify assumptions in scientific explanations
• Evaluate whether evidence actually supports a claim
• Distinguish what a model explains from what it cannot explain+ Show more

Learning Objectives

• Define variation, selection, adaptation, and selective pressure in simple terms
• Explain how differences in survival and reproduction can change trait frequencies over time
• Connect environmental change to shifts in which traits are most helpful

Learning Objectives

• Identify what is changing in a motion description and connect it to rate
• Distinguish speed from velocity and explain acceleration qualitatively
• Interpret motion scenarios using scalar and vector ideas

Learning Objectives

• Identify the independent variable and dependent variable in a simple investigation.
• Recognize key controlled variables that must stay the same to make results trustworthy.
• Use evidence from an investigation description to match variables to their roles.

Learning Objectives

• Distinguish quantitative and qualitative observations in a science investigation.
• Identify examples of observation vs. inference during inquiry.
• Use metric units appropriately when describing measurements.

Learning Objectives

• Explain how mass conservation applies to closed systems and reactors.
• Interpret a mass budget by comparing expected and measured masses.
• Identify where mass can appear or disappear in conservation accounting.

Learning Objectives

• Define mechanical advantage and explain how it relates force input and force output
• Identify the purpose of simple machines in everyday situations
• Use a basic mechanical advantage equation with given forces

Learning Objectives

• Extract key numbers and energy terms from an energy-budget text.
• Identify how conduction, convection, and radiation move energy in a passive solar house.
• Use conservation of energy ideas to interpret net heat gain and losses.

Learning Objectives

• Explain the purpose of filtration in separating mixtures
• Identify how particle size affects which materials pass through a filter
• Use physical property clues to predict filter results

Learning Objectives

• Identify evidence that a chemical change has occurred based on observable observations.
• Distinguish chemical changes from physical changes using particle-level reasoning.
• Explain how bond changes and energy transfer lead to new substances.

Learning Objectives

• Identify signs of a physical change from a text
• Explain how melting and freezing can be reversible
• Connect particle behavior to changes in observable properties

Learning Objectives

• Define solubility using simple scientific language
• Identify factors that affect how much solute dissolves
• Explain how temperature and surface area can change the amount dissolved

Learning Objectives

• Identify how distance changes over time on a distance–time graph
• Interpret whether motion speeds up, slows down, or stays constant by reading slope
• Use graph features to explain meaning of increasing, flattening, and decreasing sections

Learning Objectives

• Explain how load paths help structures resist forces.
• Identify the roles of compression, tension, and shear in common structures.
• Use material properties such as stiffness, strength, and durability to judge safety.

Learning Objectives

• Explain how environmental conditions like moisture, freezing temperatures, ultraviolet light, and salty air can reduce material durability over time.
• Identify protective measures that slow corrosion, reduce rot and water uptake, and protect concrete and polymer surfaces.
• Use service-environment details to predict expected lifespan and appropriate inspection or maintenance needs.

Learning Objectives

• Describe ecological succession as directional change in community composition after disturbance.
• Differentiate primary succession from secondary succession using starting conditions.
• Explain how soil development, seed dispersal, competition, and facilitation influence successional stages.+ Show more