Grade 7 Worksheets

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter and how abiotic factors affect decomposition rates.
• Describe how carbon and nitrogen move and transform during decomposition (including formation of detritus, mineralization, and nutrient uptake).
• Connect decomposition rates to soil fertility and ecosystem productivity in wetlands, forests, and grasslands.

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

• Explain how density, strength (tensile and compressive), stiffness (modulus), ductility, toughness, and thermal expansion affect how materials behave under load and temperature changes.
• Use material-property reasoning to compare wood, steel, and reinforced concrete in terms of strength-to-weight, deformation, and typical failure modes.
• Connect beam and column performance to property selection for serviceability, durability, and anticipated loading conditions.

Learning Objectives

• Explain how matter cycles through ecosystems using carbon, nitrogen, and phosphorus examples.
• Describe the key processes that move nutrients between air, living things, and soil (photosynthesis, respiration, decomposition, and bacterial transformations).
• Analyze how nutrient availability can limit plant growth and affect ecosystem productivity.

Learning Objectives

• Explain how biodiversity helps ecosystems remain stable after disturbances.
• Describe how overlapping ecological roles can buffer the loss of a species.
• Identify examples of disturbances that reduce biodiversity and increase ecosystem vulnerability.

Learning Objectives

• Explain how gravitational potential energy changes into kinetic energy during motion in a mechanical system
• Use mass, height (elevation), and speed to reason about relative mechanical energy and forces
• Describe how energy conservation applies when friction is small and how real systems differ+ Show more

Learning Objectives

• Define and compare key material properties (density, tensile/compressive strength, stiffness, ductility, toughness, and thermal expansion).
• Explain how material properties affect structural behavior such as deformation, cracking, and failure modes.
• Relate property selection to loading conditions and structural performance using wood, steel, and reinforced concrete examples.

Learning Objectives

• Understand how data is organized in tables with proper units and labels.
• Interpret graphs by analyzing trends, clusters, and relationships.
• Compare data groups by examining the shape and direction of data patterns.+ Show more

Learning Objectives

• Define a science/engineering design problem using clear criteria and measurable success targets
• Identify constraints as limits related to materials, safety, time, and cost
• Translate real-world needs into quantitative performance metrics and acceptable boundaries

Learning Objectives

• Describe how stratification, oxygen gradients, and light penetration form in lakes and ponds
• Explain how abiotic gradients shape community composition and vertical zonation
• Predict how seasonal turnover changes dissolved oxygen, nutrients, and habitat suitability+ Show more

Learning Objectives

• Explain how the Sun’s energy, atmospheric circulation, and water distribution contribute to Earth’s climate.
• Describe how ocean processes can modify regional climate by changing how heat is stored and released.
• Use cause-and-effect reasoning to predict how changes in climate drivers can shift patterns like drought or wet seasons.

Learning Objectives

• Define acceleration and explain its meaning.
• Differentiate between constant and changing acceleration.
• Understand how force and mass affect acceleration.

Learning Objectives

• Identify the parts of a scientific evidence argument: observation, evidence, claim, and reasoning
• Use data values or graph features to connect evidence to a claim
• Evaluate whether an argument is supported by evidence and scientific principles, not unsupported cause-and-effect+ Show more

Learning Objectives

• Understand the concepts of static and kinetic friction and their effects on motion.
• Identify examples of friction and aerodynamic drag in real-world scenarios.
• Describe how surface texture and normal force influence the coefficient of friction.+ Show more

Learning Objectives

• Understand the importance of fruits and vegetables in a healthy diet
• Identify healthy food choices and their benefits
• Learn how to read food labels and practice portion control+ Show more

Learning Objectives

• Understand how to combine like terms in algebraic expressions.
• Apply the distributive property to simplify expressions.
• Develop problem-solving skills through real-world algebra scenarios.+ Show more

Learning Objectives

• Explain how Memorial Day evolved from local practices to a national observance.
• Analyze primary-source ideas (speeches and writings) to infer community motivations.
• Use historical evidence to distinguish claims, reasons, and impacts on collective memory.

Learning Objectives

• Describe key events that helped shape World Animal Day and modern animal welfare ideas
• Use evidence from a passage to judge whether statements are true or false
• Complete sentences using vocabulary related to animal protection and empathy+ Show more

Learning Objectives

• Understand how to interpret data from graphs and observations in scientific contexts.
• Learn to support scientific claims with specific data references.
• Explain how evidence justifies scientific reasoning.+ Show more

Learning Objectives

• Describe how pressure, volume, and temperature interdependently affect gases.
• Explain phenomena such as diffusion and compressibility in gases.
• Relate macroscopic observations to the qualitative relationships among gas variables.

Learning Objectives

• Identify sources of nutrient pollution from agriculture
• Understand how nutrient runoff affects water quality
• Analyze the ecological impacts of nutrient pollution+ Show more

Learning Objectives

• Understand the significance of the spring equinox as a marker of seasonal change.
• Explain how daylight and darkness are balanced during the spring equinox.
• Identify the impact of spring on ecosystems and agriculture worldwide.+ Show more

Learning Objectives

• Recognise proportional relationships by checking whether corresponding values form equivalent ratios
• Use constant multiplicative change (a single scale factor) to find missing values in proportional situations
• Identify the constant of proportionality k in models of the form y = kx

Learning Objectives

• Understand the concept of homologous and analogous structures.
• Identify examples of homologous structures in different species.
• Recognize vestigial organs and their significance.+ Show more

Learning Objectives

• Explain how internal and external processes shape Earth’s surface
• Identify surface-process evidence such as rock strata, landforms, and hazard-history patterns
• Use relationships between rock layers and landforms to infer past events

Learning Objectives

• Identify common text features (headings, captions, charts/diagrams, highlighted terms) and explain how they support understanding.
• Use structural patterns (compare-and-contrast, problem-and-solution) to predict how information is organized.
• Determine the meaning or purpose of a text feature by analyzing nearby information and relationships among ideas.

Learning Objectives

• Understand how tectonic uplift influences landscape formation.
• Identify the processes involved in landscape changes over geologic time.
• Explain the roles of erosion, weathering, and sediment transport in shaping topography.

Learning Objectives

• Explain how temperature relates to the average random kinetic energy of particles.
• Describe how thermal energy depends on both particle motion and the number of particles.
• Use the idea of a molecular speed distribution to interpret temperature differences and heat transfer.

Learning Objectives

• Explain key details about Juneteenth and how it is commemorated in communities.
• Identify how music, food, and community events help preserve African American cultural identity.
• Use historical and cultural examples to describe why respect for traditions matters.

Learning Objectives

• Explain how International Overdose Awareness Day supports conversations about overdose, substance use, and mental health
• Use reflection to identify lessons learned and recognize helpful coping and support strategies
• Set a realistic goal that connects compassion to everyday actions in your community

Learning Objectives

• Identify the three main industry sectors (extractive, manufacturing, and service) and describe what each produces.
• Explain why industries cluster geographically and how that clustering affects jobs and regional identity.
• Analyze how transportation, infrastructure, labor availability, technology, globalization, and environmental regulation influence industrial location choices.+ Show more

Learning Objectives

• Define acceleration and explain how it relates to changes in velocity.
• Describe how force and mass influence acceleration in objects.
• Identify patterns of constant and changing acceleration from velocity data.+ Show more

Learning Objectives

• Understand how building orientation influences energy efficiency
• Identify passive solar gain strategies
• Recognize the importance of thermal barriers and ventilation systems+ Show more

Learning Objectives

• Explain how supporting details (evidence) help readers make inferences.
• Determine causes, motives, and consequences using textual evidence.
• Use the sequence of events and quoted ideas to make and support a claim.

Learning Objectives

• Explain how system models trace energy pathways and identify where energy is transformed or transferred.
• Use energy accounting to relate energy inputs, useful outputs, and waste heat in mechanical and industrial systems.
• Interpret Sankey-style energy flow diagrams to estimate efficiency and dominant loss mechanisms.+ Show more

Learning Objectives

• Identify biotic and abiotic components of ecosystems and explain how they interact.
• Describe how energy enters an ecosystem through primary producers and moves through feeding relationships.
• Explain why both living organisms and nonliving factors are needed for ecosystem structure and function.

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 practical wellness habits that promote mental, physical, and emotional health.
• Examine diverse cultural approaches to healthy living, including nutrition, exercise, and stress management.
• Develop critical thinking about personal wellness choices and their community impact.+ Show more

Learning Objectives

• Understand the concepts of exponential and logistic growth in populations.
• Identify factors affecting population dynamics, including density-dependent and independent factors.
• Interpret how different models predict population changes over time.

Learning Objectives

• Understand how internal structures support organism survival, growth, and reproduction.
• Identify external features that aid protection, feeding, and movement in organisms.
• Explain the functional relationships between traits and resource acquisition, balance, and reproduction.

Learning Objectives

• Revise writing by replacing vague wording with specific details and accurate explanations
• Strengthen clarity by improving sentence relationships using transitions and cause-effect language
• Check that important terms and pronoun references are clear to readers

Learning Objectives

• Identify different landforms created by tectonic activity
• Understand how tectonic movements shape Earth's surface
• Learn about the processes of weathering, erosion, and deposition+ Show more

Learning Objectives

• Understand various methods of organizing and displaying data to identify trends and relationships.
• Select appropriate graph types for different data sets and interpret their features.
• Calculate summary statistics such as mean and median to analyze data sets.+ Show more

Learning Objectives

• Explain how heat transfers from warmer regions to cooler regions using conduction, convection, and radiation models.
• Use a simple heat-transfer model to predict the direction of energy flow based on temperature differences.
• Describe how energy can change form while heat moves through a system.

Learning Objectives

• Understand the processes that cause rapid and gradual geologic changes.
• Identify evidence of geologic hazards such as faults, lava flows, and sediment layers.
• Explain how plate tectonics contributes to earthquakes and volcanic activity.+ 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

• Define and differentiate morphological, physiological, and behavioral adaptations in plants and animals.
• Identify examples of adaptations such as camouflage, water-storage tissues, and migratory behaviors.
• Explain how specific traits increase survival and reproductive success in particular habitats.+ Show more

Learning Objectives

• Explain how the Mongol Empire expanded across Asia in the 13th century
• Describe how Mongol control affected trade routes, especially the Silk Road
• Identify cultural, economic, and political impacts of Mongol expansion on regions they governed