Grade 7 Worksheets

Learning Objectives

• Understand how friction opposes motion and how surface roughness influences resistance.
• Describe how gravity affects objects in free fall and on inclined planes.
• Differentiate between contact forces like friction and long-range forces like gravity.+ Show more

Learning Objectives

• Understand the purpose and types of systems models used in science and engineering.
• Identify various diagrams and visual representations such as free-body diagrams, circuit schematics, and block diagrams.
• Explain the importance of assumptions, scaling effects, and simplifications when creating models.+ 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

• Describe the physical and chemical processes that shape Earth's surface, including weathering, erosion, deposition, and mass wasting.
• Identify driving forces such as water flow, wind, glaciers, and gravity, and explain their influence on landform development.
• Link observable landforms like deltas, canyons, and dunes to specific surface processes and understand their rates of change.+ Show more

Learning Objectives

• Understand the role of natural resources such as groundwater, soil, and minerals.
• Explain processes of aquifer recharge, porosity, and permeability.
• Differentiate between renewable and nonrenewable resources based on geologic settings.+ Show more

Learning Objectives

• Understand the concept of biodiversity and how it is measured using indices.
• Identify different biodiversity metrics such as species richness and evenness.
• Interpret diversity values across habitats and evaluate ecological stability.+ Show more

Learning Objectives

• Understand the basic structure and components of a cell.
• Identify the functions of cell organelles.
• Describe the diversity of cell shapes and their functions.+ Show more

Learning Objectives

• Describe how magma forms through different geological processes such as decompression, volatile addition, and heat transfer.
• Explain how cooling rates influence the texture and mineral composition of igneous rocks.
• Identify the processes of fractional crystallization and magma mixing and their effects on magma composition.+ Show more

Learning Objectives

• Describe human impacts on ecosystems including habitat alteration, pollution, resource extraction, and introduction of non-native species.
• Explain the consequences of human activities on species diversity and ecosystem functions.
• Identify principles of ecological stewardship such as mitigation, habitat protection, and restoration.+ Show more

Learning Objectives

• Understand how structural members respond to loads through bending, shear, axial force, and torsion.
• Relate the geometry and support conditions of members to internal force distribution.
• Describe how bending moment and shear force affect deflection and serviceability in beams and cantilevers.+ Show more

Learning Objectives

• Identify the main idea of an oral presentation and distinguish claims from reasons.
• Select evidence (observations, texts, personal experiences, or simple data) that directly supports the main idea.
• Use transitions to connect supporting reasons in a timed explanation or structured speech.+ Show more

Learning Objectives

• Describe the structure and stratification of freshwater systems like ponds and lakes.
• Explain how oxygen gradients and light penetration influence aquatic community composition.
• Analyze seasonal phenomena such as thermal turnover and their effects on dissolved oxygen and nutrient mixing.+ Show more

Learning Objectives

• Explain basic concepts of population growth models, including exponential and logistic growth.
• Identify limiting factors such as food, predation, disease, and abiotic stresses that affect populations.
• Distinguish between density-dependent and density-independent influences on populations.+ Show more

Learning Objectives

• Identify the controlling idea of a paragraph and explain how a topic sentence previews it
• Distinguish supporting sentences from topic sentences and closing sentences in organized paragraphing
• Use revision strategies to check that each sentence belongs to the paragraph’s main focus

Learning Objectives

• Explain how predators, prey, and competitors affect survival and reproduction rates in populations
• Describe how mutualism can increase resource availability for both partners
• Use population trends to connect biotic interactions to changes in population size over time

Learning Objectives

• Understand how heat transfer depends on mass, temperature change, and specific heat capacity.
• Apply the equation Q = mcΔT to calculate thermal energy changes in common substances.
• Identify units of energy and power such as joules and watts.+ Show more

Learning Objectives

• Understand characteristic methods used for testing material behavior, including tensile, compression, and bending assessments.
• Learn about non-destructive techniques such as ultrasonic and hardness measurements.
• Explore the concepts of anisotropy, strain localization, and their implications in material performance.+ Show more

Learning Objectives

• Understand the principles of load distribution in truss structures.
• Identify and analyze internal forces in truss members using the method of joints.
• Evaluate the efficiency and redundancy of different truss designs for regional applications.+ Show more

Learning Objectives

• Understand various long-term ecological monitoring techniques used in ecology.
• Identify key considerations for designing effective monitoring programs.
• Describe how data collection methods help detect ecological trends over time.+ Show more

Learning Objectives

• Understand key material properties such as strength, stiffness, and density in load-bearing structures.
• Compare how timber, steel, and concrete perform under various environmental conditions.
• Analyze the behavior of different materials under compression, tension, and bending stresses.+ Show more

Learning Objectives

• Understand the principles of conservation of mass in closed-system reactions.
• Explain how mass accounting relates reactant and product masses.
• Apply mass relationships to predict yields in chemical reactions.+ Show more

Learning Objectives

• Understand the concept of stratigraphic sequences and their importance in fossil record analysis.
• Identify key types of fossils such as index fossils and transitional forms.
• Analyze patterns of extinction, radiation, and morphological change over geologic time.+ Show more

Learning Objectives

• Identify criteria and constraints when comparing alternative solutions to a science or engineering problem
• Explain how iterative refinement improves a design using evidence from observed outcomes
• Justify a final design choice by linking each criterion to results and describing tradeoffs+ Show more

Learning Objectives

• Explain what adaptations are and how they relate to survival and reproduction in specific environments.
• Identify evidence for adaptation from population comparisons, fossil records, and observed environmental changes.
• Use scientific reasoning to connect environmental pressures to changes in trait frequencies over time.

Learning Objectives

• Explain how tectonic activity, weathering, erosion, and deposition work together to shape Earth’s surface
• Identify how different agents (water, wind, ice, and gravity) transport weathered material
• Use evidence from landforms and rock layers to describe how landscapes can appear stable while still changing

Learning Objectives

• Define the different states of matter and their particle arrangements.
• Describe phase changes such as melting, freezing, vaporization, condensation, and sublimation.
• Understand the influence of temperature and pressure on phase transitions.+ Show more

Learning Objectives

• Explain how competition affects growth and survival in a community
• Describe how predation transfers energy and influences prey and predator populations
• Differentiate mutualism, commensalism, and parasitism as types of symbiosis

Learning Objectives

• Define and differentiate between physical and chemical properties of substances.
• Identify measurable attributes such as density, solubility, hardness, and conductivity.
• Classify substances as elements, compounds, or mixtures based on their properties.+ Show more

Learning Objectives

• Analyze the societal, economic, and environmental impacts of various technologies.
• Evaluate short- and long-term consequences of technological development.
• Identify ethical considerations and trade-offs involved in implementing new technologies.+ Show more

Learning Objectives

• Understand how scaling impacts physical behavior in structures, turbines, and biological systems.
• Analyze the relationships between surface area, volume, and size in scaled models.
• Explain the significance of Reynolds number in fluid flow at different scales.+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow influence ecosystems.
• Explain how disturbance frequency, intensity, and scale affect biodiversity and community dynamics.
• Identify species adapted to regular disturbance regimes and their resilience mechanisms.+ Show more

Learning Objectives

• Understand the concept of keystone species and their impact on ecosystems.
• Identify examples of keystone species and their roles in maintaining ecological balance.
• Analyze how removal or decline of keystone species can affect food webs and biodiversity.+ Show more

Learning Objectives

• Describe the roles of producers and consumers in an ecosystem.
• Explain how energy transfer occurs between trophic levels and why it is inefficient.
• Understand the structure of energy pyramids and population dynamics within a food web.+ Show more

Learning Objectives

• Understand the mechanisms of active transport in cells and how molecules are moved against concentration gradients.
• Identify the role of membrane proteins like pumps in active transport.
• Describe vesicular transport processes such as endocytosis and exocytosis.+ Show more

Learning Objectives

• Understand the different types of interactions between populations such as competition, predation, and mutualism.
• Identify how these interactions influence community composition and population dynamics.
• Explain concepts like resource partitioning and niche separation that allow coexistence of species.+ Show more

Learning Objectives

• Understand how cellular structures and transport mechanisms work together to maintain homeostasis.
• Identify the roles of transport proteins, membrane pumps, and hormones in regulating nutrient and ion levels.
• Explain how organ systems coordinate to match supply and demand for water, nutrients, and ions.+ Show more

Learning Objectives

• Understand the role of the nucleus in cellular activities.
• Identify the components of the nucleus and their functions.
• Explain how nuclear processes influence cell growth and response.+ Show more

Learning Objectives

• Understand how cells organize into tissues, organs, and systems.
• Identify different tissue types and their functions.
• Explain the role of tissues in supporting organism activities.+ Show more

Learning Objectives

• Understand how deposition shapes various landforms such as deltas, beaches, and glacial features.
• Identify characteristics of depositional processes and their geological evidence.
• Explain the formation of stratigraphic layers and their significance in interpreting past environments.+ Show more

Learning Objectives

• Describe the stages involved in the formation of sedimentary rocks.
• Identify the processes of weathering, transport, and deposition.
• Explain how sedimentary structures and fossils provide information about Earth's past environments.+ Show more

Learning Objectives

• Explain the difference between passive and active transport mechanisms across cell membranes.
• Describe how diffusion, osmosis, and active transport operate to move substances in and out of cells.
• Identify the roles of membrane proteins in facilitating selective transport and maintaining ion balance.+ Show more

Learning Objectives

• Identify the functions of key organ systems such as circulatory, respiratory, and digestive.
• Explain how tissues and organs work together within organ systems to perform vital life functions.
• Describe the specialized structures that increase efficiency in gas exchange and nutrient absorption.+ Show more

Learning Objectives

• Understand the structure and function of different specialized cells in the human body and plants.
• Identify morphological features that enable cells to perform their specific roles efficiently.
• Explain how cellular specialization contributes to the overall functioning of tissues and organs.+ Show more

Learning Objectives

• Explain Newton’s third law using the idea of equal and opposite force pairs between two interacting objects
• Distinguish between the action-reaction forces on different objects and relate them to motion using mass and acceleration
• Apply action-reaction reasoning to both contact forces and noncontact forces such as gravity

Learning Objectives

• Explain density using the particle view (mass per unit volume and particle spacing).
• Predict how density changes when temperature changes and particles spread out or come closer together.
• Use particle reasoning to explain sinking and floating based on density differences.

Learning Objectives

• Explain how friction opposes relative motion between two touching surfaces
• Use force comparisons (applied force vs. friction) to predict whether motion speeds up, slows down, or stays constant
• Describe how surface texture affects the magnitude of friction and the outcome of motion

Learning Objectives

• Explain phase changes using energy transfer and particle motion and arrangement.
• Differentiate melting, freezing, evaporation, and condensation in terms of energy flow.
• Use the particle model to predict properties of solids, liquids, and gases during and after phase changes.

Learning Objectives

• Identify major freshwater water-supply and treatment options and describe their key tradeoffs.
• Explain how design constraints (water quality, infrastructure limits, and ecosystem impacts) affect water-system decisions.
• Use cause-and-effect reasoning to predict risks from scarcity, pollution, or altered flow patterns.+ Show more