Grade 7 Science Worksheets

Learning Objectives

• Identify physical properties (such as color, texture, state, and density) and explain how they can be observed or measured.
• Distinguish chemical properties from physical properties using examples like flammability and rusting.
• Use properties to support the classification of substances under consistent conditions.

Learning Objectives

• Understand the formation and origin of the solar system.
• Identify key properties and features of planets within the solar system.
• Describe planetary motions, phases, and eclipses observed from Earth.+ Show more

Learning Objectives

• Identify energy sources and receivers in everyday systems
• Explain how energy transfers through collisions, waves, currents, and motion
• Trace energy through multi-step and branching systems+ Show more

Learning Objectives

• Understand systematic evaluation of different design solutions using modeling and analysis.
• Identify and quantify trade-offs among performance, cost, durability, and manufacturability.
• Apply models to predict and observe behaviors of prototypes in engineering contexts.+ Show more

Learning Objectives

• Understand how adaptive traits become common in populations through natural selection
• Identify examples of selective pressures such as pesticide resistance and camouflage
• Explain the mechanisms of variation, heritability, and differential survival+ Show more

Learning Objectives

• Define adaptive traits and explain their role in survival.
• Recognize examples of adaptive traits such as camouflage and pesticide resistance.
• Describe how environmental pressures influence trait selection over generations.+ Show more

Learning Objectives

• Explain the principle of conservation of mass at the particle level in chemical reactions.
• Describe how atoms are conserved and rearranged during chemical processes.
• Recognize that in a closed system, the total mass remains the same before and after a reaction.+ Show more

Learning Objectives

• Understand the key concepts of beam performance under loads, including bending, shear, and deflection.
• Identify how span, support conditions, and load types affect beam stability and comfort.
• Relate real-world examples such as highway overpass girders and building floor joists to beam analysis.+ Show more

Learning Objectives

• Understand the mechanisms of passive and active transport across cell membranes.
• Identify the roles of membrane proteins in substance passage and ion balance.
• Differentiate between diffusion, osmosis, and active transport mechanisms.+ Show more

Learning Objectives

• Understand the definition of saturation and how it relates to solubility.
• Describe the phenomenon of supersaturation and how it can lead to precipitation.
• Identify real-world examples of saturation and supersaturation conditions.+ Show more

Learning Objectives

• Define the concept of a keystone species and its role in ecosystems.
• Identify examples of keystone species and their effects on biodiversity.
• Explain trophic cascades and how removal of keystone species impacts food webs.+ Show more

Learning Objectives

• Identify factors influencing population size and distribution.
• Describe patterns of exponential and logistic growth.
• Explain how predator-prey relationships affect populations.+ Show more

Learning Objectives

• Understand the differences between pure substances and mixtures.
• Identify characteristic examples of elements, compounds, and mixtures.
• Explain the criteria that classify substances as pure or impure.+ Show more

Learning Objectives

• Understand the primary structural elements involved in load transfer within buildings.
• Identify and distinguish between dead loads and live loads.
• Explain the concepts of tension, compression, and shear in structural members.+ Show more

Learning Objectives

• Describe different representations of atomic models including particle, ball-and-stick, and lattice structures.
• Explain how atomic structure influences the properties of molecules and extended materials.
• Distinguish between molecular and extended network structures based on bonding patterns.+ Show more

Learning Objectives

• Understand how atomic matter is conserved and cycled through organisms during digestion, biosynthesis, and respiration.
• Describe the flow of carbon and nitrogen in biological processes.
• Identify key biochemical pathways involved in matter recycling within organisms.+ Show more

Learning Objectives

• Understand the different types of weathering processes that break down rocks.
• Identify physical, chemical, and biological mechanisms responsible for weathering.
• Explain how weathering influences landscape formation and sediment supply.+ Show more

Learning Objectives

• Identify the key components of an ecosystem, including both living organisms and physical factors.
• Explain how biotic and abiotic components interact within an ecosystem.
• Describe the flow of energy through an ecosystem via producers and feeding relationships.+ Show more

Learning Objectives

• Identify and describe different components of a food web, including producers, consumers, and decomposers.
• Understand how interconnected feeding relationships form a food web.
• Explain the importance of network structure in ecosystem resilience.

Learning Objectives

• Define carrying capacity and explain its significance in ecosystems.
• Identify limiting factors that affect population growth.
• Describe the balance between organisms and their environment.

Learning Objectives

• Identify key ideas about invasive species and their ecological impact.
• Evaluate understanding through multiple choice, true/false, short answer, and essay questions.
• Summarize the mechanisms and consequences of invasive species invasion.

Learning Objectives

• Define what a keystone species is and explain its importance in an ecosystem.
• Identify examples of keystone species and their roles.
• Describe the effects of removing a keystone species from an ecosystem.

Learning Objectives

• Identify the main components of an ecosystem
• Differentiate between biotic and abiotic factors
• Explain how energy flows through an ecosystem+ Show more

Learning Objectives

• Identify examples of predation in nature
• Understand the impact of predation on populations
• Recognize the role of predators in maintaining ecosystem balance+ Show more

Learning Objectives

• Understand how temperature affects plant and animal survival
• Identify the effects of temperature variations on ecosystems
• Analyze the interactions between abiotic and biotic factors+ Show more

Learning Objectives

• Understand the basic concepts of exponential and logistic population growth.
• Identify differences between density-dependent and density-independent factors.
• Interpret how environmental factors influence population changes.

Learning Objectives

• Explain the concept of trophic efficiency
• Describe how energy is transferred through food chains
• Identify factors that cause energy loss in ecosystems+ Show more

Learning Objectives

• Understand basic concepts of ecosystems and biodiversity
• Identify various conservation strategies and their purposes
• Recognize the importance of habitat protection and restoration+ Show more

Learning Objectives

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

Learning Objectives

• Define habitat fragmentation and explain its causes.
• Describe how fragmentation affects ecosystems and species.
• Identify strategies to mitigate negative effects of habitat fragmentation.

Learning Objectives

• Understand the concept of load paths in buildings and bridges
• Identify primary vs. secondary load transfer routes
• Learn how openings, corners, and irregular geometries affect load redistribution+ Show more

Learning Objectives

• Describe the interactions between organ systems in multicellular animals, including circulation, respiration, digestion, and nervous systems.
• Explain system-level dependencies and feedback mechanisms that support gas exchange, nutrient distribution, and homeostasis.
• Compare human and plant vascular systems to understand similarities and differences in transport interactions.+ Show more

Learning Objectives

• Identify different phases within a mixture of oil sands and bitumen.
• Understand physical separation techniques used in extracting bitumen.
• Distinguish between physical and chemical processes in mixture separation.+ Show more

Learning Objectives

• Explain the concept of saturation and supersaturation.
• Identify real-life examples of saturation and crystallization.
• Understand the conditions that lead to solute crystallization.+ Show more

Learning Objectives

• Understand the principle of mass conservation in closed systems
• Recognize practical applications of mass conservation in environmental contexts
• Interpret data related to mass balances in chemical and physical processes

Learning Objectives

• Explain how environmental and human health effects can become part of science-based constraints in design.
• Identify ways materials and processes can impact air, water, soil, and local communities.
• Distinguish solutions that are technically feasible from solutions that are socially and environmentally responsible.

Learning Objectives

• Describe the functions of the circulatory, respiratory, digestive, and nervous systems in multicellular animals.
• Explain how organ systems cooperate to support gas exchange, nutrient distribution, and homeostasis.
• Identify examples of system-level dependencies and feedback mechanisms in animal and plant systems.+ 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 how the circulatory and respiratory systems work together to exchange gases.
• Identify the roles of blood and lungs in gas exchange.
• Describe how oxygen moves from the lungs to tissues via blood.+ Show more

Learning Objectives

• Understand how cellular structures and transport processes work together to maintain homeostasis.
• Identify key mechanisms such as transport proteins, membrane pumps, and hormone signaling.
• Explain how various organ systems coordinate to regulate nutrient levels, ions, and water balance.+ Show more

Learning Objectives

• Understand the structure and function of mitochondria in energy production.
• Describe the process of cellular respiration and ATP synthesis.
• Identify how mitochondrial variations reflect cellular energy needs.+ Show more

Learning Objectives

• Understand the mechanisms of active transport and how it differs from passive diffusion.
• Identify the roles of cellular energy and membrane proteins in transporting molecules.
• Explain the function of the sodium-potassium pump in maintaining cell stability.+ Show more

Learning Objectives

• Understand the structural differences among specialized cells and their roles.
• Describe how morphological differences enable cells to perform specific functions.
• Identify examples of cell specialization in tissues and organs.+ Show more

Learning Objectives

• Understand the role of the nucleus in a cell's activities.
• Identify components of the nucleus such as chromosomes, nuclear envelope, and nuclear pores.
• Describe how the nucleus controls cell growth, development, and protein synthesis.+ Show more

Learning Objectives

• Explain how receptor proteins and signaling molecules enable cells to communicate.
• Describe the function of gap junctions and plasmodesmata in cell communication.
• Identify different mechanisms of signal regulation, including feedback and amplification.+ Show more

Learning Objectives

• Describe passive and active mechanisms of membrane transport.
• Explain how diffusion and osmosis differ.
• Identify the role of membrane proteins in substance passage.+ Show more

Learning Objectives

• Identify different tissue types in the human body.
• Describe the functions of epithelial, muscular, connective, and nervous tissues.
• Understand how tissues work together to form organs and systems.+ Show more

Learning Objectives

• Describe the organization and composition of the cell membrane.
• Explain the functions of lipids, proteins, and carbohydrates in the membrane.
• Understand how the membrane maintains selective permeability and communication.+ Show more