Worksheet Worksheets

Learning Objectives

• Explain how changes in ecosystem components can cause population increases or declines using evidence.
• Interpret population data (birth/death rates, age structure, and growth curves) to make causal inferences.
• Use case studies (predator reintroduction, invasive species, habitat fragmentation, and disease outbreaks) to support claims.+ Show more

Learning Objectives

• Explain how energy moves through producers, consumers, and decomposers in food webs
• Describe how photosynthesis and cellular respiration help determine an ecosystem’s energy budget
• Use an energy pyramid idea and trophic transfer efficiency to predict how much energy remains at each trophic level+ Show more

Learning Objectives

• Compare conservation strategies, habitat restoration, protected areas, and invasive species management as solutions for maintaining biodiversity.
• Explain how ecological trade-offs can affect species persistence and ecosystem services such as pollination, water purification, and nutrient cycling.
• Use case studies to evaluate which biodiversity solutions may work best under different environmental pressures.

Learning Objectives

• Explain how synthetic materials can be traced back to natural resources and processing steps.
• Compare properties of common synthetic materials (durability, flexibility, conductivity, biodegradability) to match materials to uses.
• Describe how resource extraction and manufacturing can affect society and the environment, including recyclability.

Learning Objectives

• Explain how particle models describe matter as made of particles that are too small to see.
• Use particle ideas to predict what happens to a substance during melting, freezing, boiling, and condensation.
• Relate temperature and thermal energy to the motion and kinetic energy of particles.+ Show more

Learning Objectives

• Explain conservation of mass by tracking atoms and total mass in a closed system
• Use particle diagrams and symbolic models to show that atoms rearrange but their total count stays the same
• Connect mass measurements before and after changes to conservation of mass in physical and chemical processes

Learning Objectives

• Identify chemical reactions using qualitative evidence such as color change, gas production, and precipitate formation.
• Use quantitative measurements (mass and temperature changes) to support whether new substances formed.
• Compare pre-interaction and post-interaction observations to determine signs of chemical change.

Learning Objectives

• Use models (ball-and-stick and space-filling) to describe how atoms combine to form simple molecules and extended structures.
• Interpret chemical formulas to identify the relative atom types and counts in H2O and NaCl.
• Explain how repeating units build polymer chains and how ionic charges relate to ionic lattices.

Learning Objectives

• Explain how homologous structures and vestigial organs provide evidence for common ancestry.
• Use conserved DNA sequences and mutations to interpret relationships on a phylogenetic tree.
• Compare anatomical and molecular traits to support hypotheses about divergence among taxa.

Learning Objectives

• Interpret frequency charts and time-series graphs to describe how populations change over generations.
• Use proportional reasoning to estimate rates of increase or decline from numerical data.
• Explain how environmental factors and demographic events can shift population outcomes over time.+ Show more

Learning Objectives

• Explain how heritable variation can change over generations through natural selection.
• Describe differential reproductive success and how it shifts trait frequencies in a population.
• Use evidence from real examples to connect environmental pressures with changes in traits.

Learning Objectives

• Use stratigraphic order and fossil evidence to describe patterns of change through geologic time
• Compare fossil assemblages from different rock layers to infer biodiversity shifts and environmental change
• Explain how relative dating and radiometric dating support timelines for fossil lineages

Learning Objectives

• Describe how biodiversity can vary across space and time using measures like species richness and species occurrence.
• Compare how island faunas, latitudinal gradients, and habitat heterogeneity can affect biodiversity and endemism.
• Explain how historical records and present-day surveys can be used to estimate turnover and changes in community composition.

Learning Objectives

• Explain how adaptations can spread through populations over generations
• Describe how reproductive isolation contributes to speciation
• Identify evidence scientists use to support claims that new species formed

Learning Objectives

• Analyze comparative test data to identify which design performs best for a specific goal.
• Explain trade-offs using evidence from measurements, including averages and errors.
• Use graphs and constraints to propose data-supported improvements to a design.

Learning Objectives

• Explain how tectonic, atmospheric, and hydrologic processes contribute to the formation of natural hazards.
• Describe patterns in hazard frequency, intensity, and spatial distribution using evidence such as records and data.
• Analyze cause-and-effect relationships between natural hazard events and impacts on communities and infrastructure.

Learning Objectives

• Explain how geoscience processes like plate tectonics, sedimentation, and weathering can affect where mineral and energy resources form.
• Describe how groundwater flow and hydrologic conditions influence the location and availability of aquifers.
• Evaluate how demand, extraction impacts, and technology affect trade-offs in resource allocation and long-term availability.

Learning Objectives

• Explain how population trends and per-capita resource use can affect Earth systems.
• Compare sustainability strategies such as renewable energy, conservation, circular resource use, and land-management approaches.
• Evaluate trade-offs among environmental, economic, and social priorities when choosing sustainability solutions.+ Show more

Learning Objectives

• Explain how gravitational attraction controls the motion of planets and satellites.
• Describe how gravity between the Sun and planets creates elliptical orbits and changes orbital speed.
• Connect orbital period and orbital speed to how distance affects gravitational pull.

Learning Objectives

• Explain how the relative positions of Earth, Moon, and Sun create lunar phases and eclipses.
• Describe the sequence of primary lunar phases and how illumination changes during the month.
• Identify the conditions for solar and lunar eclipses using line-of-sight and shadow explanations.+ Show more

Learning Objectives

• Explain how Earth’s rotation causes day and night.
• Describe how Earth’s orbit and 23.5° axial tilt lead to seasons.
• Use solstices and equinoxes as observable markers for seasonal change.+ Show more

Learning Objectives

• Explain how gravitational attraction depends on mass and distance using real-world examples.
• Describe how friction is a contact force that affects motion along surfaces.
• Use evidence to argue whether changes in motion are caused by gravity or friction.+ Show more

Learning Objectives

• Use astronomical units (AU) to compare the Earth–Sun distance to other distances in the solar system.
• Compare relative planetary sizes (such as Earth vs. Jupiter) using radii or diameter ratios.
• Interpret tables and charts using orders of magnitude to describe large-scale solar system relationships.+ Show more

Learning Objectives

• Explain how electric and magnetic forces depend on source strength and distance
• Use qualitative ideas of electric and magnetic fields to describe interactions
• Distinguish between balanced and unbalanced forces using examples with charges and magnets or currents+ Show more

Learning Objectives

• Explain how conservation of momentum applies to isolated two-object systems during collisions.
• Describe action-reaction force pairs that occur during contact between two objects.
• Distinguish elastic and inelastic collisions using momentum and resulting motion.+ Show more

Learning Objectives

• Explain how air masses, pressure systems, and fronts work together to create local and regional weather.
• Interpret weather data from surface maps, temperature/pressure measurements, and radar observations to describe precipitation and wind changes.
• Describe how convection and latent heat release help explain short-term weather variability such as thunderstorms.

Learning Objectives

• Explain how solar energy and gravity drive the water cycle processes.
• Describe the roles of evaporation, condensation, precipitation, runoff, infiltration, and groundwater storage.
• Use reservoir and phase-change ideas to trace how water moves through air, land, and oceans.+ Show more

Learning Objectives

• Explain how Earth systems interact through transfers of matter and energy among the geosphere, hydrosphere, atmosphere, and biosphere.
• Describe how feedbacks (such as albedo changes and sediment transport) can amplify or slow system changes.
• Use models to connect sequential processes to observable patterns from seasons to geologic time.

Learning Objectives

• Explain how geologic processes such as plate motion, volcanic uplift, mountain building, and sediment transport change Earth’s surface.
• Identify evidence of surface change in rock layers, fossils, uplifted terraces, and erosion rates.
• Compare rapid events (like volcanic eruptions and landslides) with slow processes (like weathering) using appropriate time scales.

Learning Objectives

• Interpret patterns in observational and instrumental data related to natural hazards.
• Explain how recurrence intervals and frequency statistics help estimate when hazards may occur again.
• Use examples such as earthquake catalogs, storm tracks, and flood statistics to support risk assessment and response planning.

Learning Objectives

• Explain how unequal solar heating and Earth’s rotation create global atmospheric circulation patterns.
• Describe how ocean currents transport heat and moisture and influence regional climates.
• Connect trade winds, westerlies, and major climate-cell models to persistent climate zones.+ Show more

Learning Objectives

• Explain how receptors help cells detect chemical and electrical signals
• Describe how signal transduction cascades produce specific cell responses
• Compare rapid nervous transmission with longer-term endocrine hormone effects+ Show more

Learning Objectives

• Explain how reproductive isolation and geographic separation can lead to speciation.
• Describe how polyploidy and adaptive radiation can create new species.
• Interpret biogeographic and diversification patterns to understand biodiversity over time.

Learning Objectives

• Identify the main mechanisms of heat transfer: conduction, convection, and radiation.
• Explain how heat transfer relates to temperature change and the movement of thermal energy.
• Use examples (spoon in hot liquid, air currents, a lamp, and an electrical circuit) to match evidence to the correct mode of heat flow.

Learning Objectives

• Define a design problem using clear criteria for success and measurable constraints.
• Translate real-world needs (societal, environmental, and safety) into quantitative targets and acceptable limits.
• Distinguish between criteria (what success looks like) and constraints (what limits the design).+ Show more

Learning Objectives

• Explain how kinetic energy depends on mass and speed
• Interpret proportional patterns in kinetic energy graphs
• Relate stored potential energy to future motion through energy conversion

Learning Objectives

• Explain how potential energy depends on an object’s position or arrangement in a system
• Compare gravitational, elastic, and magnetic potential energy using real-world examples
• Describe how changes in configuration can transform stored energy into motion or work

Learning Objectives

• Explain how homologous and analogous structures provide evidence for evolution
• Use comparative anatomical features (limb bones, skull shape, vestigial organs) to infer evolutionary relationships
• Connect morphological comparisons with basic genetics and paleontology evidence to support phylogenetic ideas

Learning Objectives

• Evaluate how habitat corridors, protected areas, restoration, invasive species control, and sustainable harvest can help maintain biodiversity.
• Compare management strategies by considering ecological, economic, and social trade-offs.
• Use evidence from case examples to predict outcomes for ecosystem services such as pollination, water purification, and food provisioning.

Learning Objectives

• Explain how physical and biological disturbances can change population sizes and community composition.
• Describe mechanisms of resilience, resistance, and ecological succession during ecosystem recovery.
• Interpret observations and longitudinal data to connect specific abiotic or biotic changes to population trends.+ Show more

Learning Objectives

• Explain how carrying capacity and resource availability affect population size and growth rate.
• Interpret logistic growth ideas using examples such as limited food, water, and shelter.
• Connect birth, death, immigration, and emigration to population change in ecosystems.+ Show more

Learning Objectives

• Describe how pharyngeal pouches and limb buds develop early in vertebrates and why they can be evolutionarily informative
• Compare embryonic development across taxa using evidence from developmental timing and patterning
• Explain how conserved developmental stages can support reconstruction of phylogenetic relationships

Learning Objectives

• Explain how predation, competition, parasitism, mutualism, and commensalism affect populations in terrestrial and aquatic ecosystems.
• Use food webs and trophic diagrams to describe direct and indirect (cascading) effects of species interactions.
• Interpret evidence-based claims about interaction strength changes, including examples of predator–prey cycles and invasive species.+ Show more

Learning Objectives

• Explain how microscopy provides evidence that organisms are made of discrete cells.
• Differentiate unicellular and multicellular organization using examples such as protists and onion epidermis.
• Identify major cell boundaries (plasma membrane and cell wall) and describe how they appear in images.+ Show more

Learning Objectives

• Explain how atomic number relates to the number of protons and electrons in common cases.
• Compare particle, ball-and-stick, and lattice representations of atoms in molecules and extended structures.
• Use chemical formula notation to describe how bonding patterns affect properties such as melting point and conductivity.

Learning Objectives

• Explain equilibrium as the condition where the net force is zero.
• Differentiate static equilibrium from dynamic equilibrium using acceleration and motion.
• Identify examples of balanced forces, including normal and gravitational forces and tension.+ Show more

Learning Objectives

• Analyze patterns in the fossil record, including diversity, extinction events, and morphological change over geologic time
• Explain how stratigraphy and index fossils support correlation and inferences about ancestry
• Describe how transitional fossils provide evidence for evolutionary continuity

Learning Objectives

• Describe how igneous, sedimentary, and metamorphic rocks can transform through the rock cycle.
• Explain how heat, pressure, and plate tectonics drive key processes such as melting, crystallization, burial, and metamorphism.
• Trace how weathering and erosion move rock materials and form sedimentary layers over time.+ Show more