Science Worksheets

Learning Objectives

• Describe the phases of the cell cycle, including interphase, mitosis, and cytokinesis.
• Explain the roles of cyclins, kinases, and checkpoints in regulating cell division.
• Identify examples of cellular proliferation in biological processes such as tissue growth and wound repair.+ Show more

Learning Objectives

• Explain how work depends on force magnitude and the angle between force and displacement
• Use the relationship between work and changes in mechanical energy to interpret real situations
• Calculate power from energy transfer rate and connect it to how quickly work is done+ Show more

Learning Objectives

• Understand the concept of gravitational force and how it affects objects.
• Identify different types of forces in various scenarios.
• Explain how forces combine to produce net force.+ Show more

Learning Objectives

• Identify and describe different forms of energy such as kinetic, potential, thermal, chemical, and electrical.
• Relate each form of energy to familiar phenomena and everyday objects.
• Distinguish between energy related to motion, position, internal activity, and stored energy.

Learning Objectives

• Define trophic efficiency and describe energy transfer between trophic levels
• Explain why energy availability decreases at higher trophic levels
• Interpret how primary productivity influences consumer biomass+ Show more

Learning Objectives

• Understand how Earth's internal heat and energy flow drive processes in the rock cycle.
• Identify evidence from geological features that connect material changes over time.
• Explain how energy availability influences the rates and outcomes of geologic processes.+ Show more

Learning Objectives

• Explain how negative feedback opposes changes from a physiological set point
• Identify the roles of sensors, control centers, and effectors
• Compare feedback responses in temperature and blood glucose regulation+ Show more

Learning Objectives

• Explain the main phases of the cell cycle, including interphase, mitosis, and cytokinesis.
• Describe how DNA replication and chromosome segregation help maintain genetic information.
• Identify how cyclins, kinases, and checkpoint mechanisms regulate the cell cycle.+ Show more

Learning Objectives

• Understand how conservation of mass applies in open and closed systems.
• Identify the factors influencing apparent mass changes during reactions.
• Apply quantitative methods to track reactant and product masses and reconcile with conservation laws.+ Show more

Learning Objectives

• Understand the methods used to establish Earth's and planetary bodies' chronologies.
• Identify key principles of radiometric dating and stratigraphic analysis.
• Explain the significance of isotopic decay systems and crater-counting records in geochronology.+ Show more

Learning Objectives

• Explain how multiple organ systems work together to maintain homeostasis.
• Describe feedback mechanisms and how they help keep internal conditions stable.
• Use key vocabulary from circulatory, respiratory, digestive, nervous, and endocrine systems.

Learning Objectives

• Classify ionic, covalent, and metallic bonding using electrostatic attraction, lattice models, and electron-sharing ideas
• Use Lewis structures, formal charge, and VSEPR to predict molecular shape and relate it to polarity and intermolecular forces
• Explain how bonding type influences melting point, conductivity, and solubility using lattice energy and (where appropriate) molecular orbital concepts

Learning Objectives

• Identify and describe common forms of energy including kinetic, potential, thermal, chemical, and electrical.
• Relate each form of energy to familiar phenomena such as moving objects, stretched springs, warm objects, and batteries.
• Understand the differences and distinctions among various energy forms based on their characteristics and associated activities.+ Show more

Learning Objectives

• Explain energy conservation using energy accounting for a closed system.
• Distinguish between mechanical energy and thermal energy in nonconservative processes (e.g., friction).
• Use initial and final energy states to predict outcomes in real-world scenarios.+ Show more

Learning Objectives

• Identify the key components of the plasma membrane
• Explain the fluid mosaic model
• Describe the roles of phospholipids, proteins, and cholesterol in the membrane+ Show more

Learning Objectives

• Identify the main idea of how molecular sequence similarity supports inferences about evolutionary relatedness.
• Describe how conserved genes and sequence comparisons provide supporting details for phylogenetic reasoning.
• Recognize that mutations can accumulate and that shared similarities can indicate common ancestry.

Learning Objectives

• Explain how acceleration is related to net force and mass using Newton’s Second Law
• Determine the direction and magnitude of acceleration from multiple forces using vector sums
• Apply Newton’s Second Law to predict how changes in force or mass affect motion

Learning Objectives

• Understand how center of mass and center of pressure influence stability.
• Identify design features that enhance aircraft stability, such as dihedral angles and tail volume.
• Explain how weight placement affects the static stability of flying objects.+ Show more

Learning Objectives

• Differentiate between renewable and nonrenewable natural resources and explain why renewal rates matter.
• Describe how natural resources form and where they are commonly found in regions.
• Analyze environmental and economic impacts of extracting and using natural resources.+ Show more

Learning Objectives

• Explain the difference between a hypothesis and an evidence-based prediction in scientific investigations.
• Identify which claims are testable and how results can support or challenge an idea.
• Describe how uncertainty and unexpected outcomes can refine assumptions and guide further evidence collection.

Learning Objectives

• Understand key genomic technologies such as PCR, DNA sequencing, and CRISPR.
• Explain how recombinant DNA methods are used in biotechnology.
• Analyze societal and ecological considerations related to genomic tools.

Learning Objectives

• Explain how biotic and abiotic variables function as ecosystem stocks
• Identify flows connecting variables within an ecosystem model
• Predict how changes propagate through connected ecosystem pathways+ Show more

Learning Objectives

• Explain the stages of the cell cycle, including interphase, mitosis, and cytokinesis.
• Describe the roles of cyclins, kinases, and checkpoint mechanisms in regulating cell division.
• Analyze the significance of proper cell cycle regulation in tissue growth, wound repair, and prevention of diseases such as cancer.+ Show more

Learning Objectives

• Interpret multiple lines of evidence (fossil sequences, comparative anatomy, biogeography, and molecular phylogenies) for descent with modification.
• Explain how natural selection, genetic drift, gene flow, and mutation can change allele frequencies over short and long timescales.
• Use models and scenarios to predict how populations respond to changing environments.

Learning Objectives

• Understand the principle of mass conservation in closed and open systems.
• Apply quantitative methods to track reactants and products in chemical systems.
• Recognize factors that can cause apparent mass changes in open systems.+ Show more

Learning Objectives

• Understand principles of allele frequency change in populations
• Apply Hardy-Weinberg equilibrium as a null model for microevolution
• Identify forces such as selection, genetic drift, migration, and mutation shaping genetic variation+ Show more

Learning Objectives

• Interpret multiple lines of evidence for descent with modification, including fossil sequences, comparative anatomy, biogeographic distributions, and molecular phylogenies.
• Describe mechanisms such as natural selection, genetic drift, gene flow, and mutation that alter allele frequencies and produce adaptive traits.
• Employ models linking selective pressures and trait variation to population responses and evaluate scenarios like antibiotic resistance and morphological adaptation.

Learning Objectives

• Understand different conceptual frameworks used to analyze multivariable causal relationships.
• Identify confounding factors and interaction effects in complex systems.
• Apply control matrices, causal graphs, and stratified comparisons to real-world contexts.+ Show more

Learning Objectives

• Classify ionic, covalent, and metallic bonding using electrostatic interactions, polarity, and bond order ideas.
• Use Lewis structures and formal charge reasoning to predict molecular shapes and polarity with VSEPR.
• Relate bonding models to macroscopic properties such as melting point, conductivity, and solubility.

Learning Objectives

• Explain how crossing over and independent assortment during meiosis create genetic variation in gametes.
• Describe how combining two genetically varied gametes at fertilization can produce offspring with observable differences.
• Use evidence from statements and a scientific passage to identify correct ideas about meiotic variation.

Learning Objectives

• Describe the major human organ systems involved in circulation, respiration, digestion, and nervous function.
• Explain how tissues and organs interact within each organ system to support body functions.
• Connect cellular activities to system-level processes such as nutrient transport, gas exchange, and coordination.+ Show more

Learning Objectives

• Explain how different body systems interact to maintain homeostasis.
• Identify key functions of the circulatory, respiratory, digestive, nervous, and endocrine systems.
• Describe feedback mechanisms such as insulin-glucagon signaling and thermoregulation.+ Show more

Learning Objectives

• Analyze how increases in human population and consumption alter demand for water, energy, land, and materials.
• Evaluate the effects of population growth and urbanization on ecosystems and resource cycles.
• Compare regional examples to understand how consumption patterns influence environmental pressure.+ Show more

Learning Objectives

• Identify observable indicators of chemical reactions such as color change, gas production, precipitate formation, and temperature change.
• Interpret qualitative and quantitative data from different reactions to determine if a chemical change has occurred.
• Connect macroscopic evidence to particle rearrangement and formation of new substances with distinct properties.+ Show more

Learning Objectives

• Explain how greenhouse gases affect Earth’s energy budget by interacting with infrared radiation
• Describe radiative forcing and how changes in greenhouse gas concentrations influence climate trends
• Evaluate how climate feedbacks can amplify or dampen temperature changes

Learning Objectives

• Explain how nonconservative forces like friction and drag oppose motion and remove mechanical energy
• Analyze how friction and drag affect acceleration and velocity over time
• Relate real-world observations (slowing down, reaching terminal velocity) to the concept of net force

Learning Objectives

• Understand the principles of designing studies under practical, ethical, or temporal constraints.
• Identify trade-offs among replication, measurement precision, and scope in observational and experimental studies.
• Evaluate scenarios involving limited instrumentation or rapid assessment to justify design choices.+ Show more

Learning Objectives

• Understand the concept of linear momentum and how it is conserved in collisions.
• Explain impulse and its relation to change in momentum.
• Differentiate between elastic and inelastic collisions at classroom-relevant scales.+ Show more

Learning Objectives

• Identify the structural components of the plasma membrane
• Understand the fluid mosaic model of membrane architecture
• Differentiate between transport protein types+ Show more

Learning Objectives

• Explain how gravity and inertia work together to keep objects moving along orbital paths
• Describe centripetal acceleration and how it relates to curved motion in space
• Use evidence from planetary paths and comet trajectories to connect observations to gravitational principles

Learning Objectives

• Understand how to balance chemical equations to verify atom and mass conservation.
• Use molar relationships and coefficients to track atom counts across reactions.
• Apply the mole concept and molar masses to demonstrate invariant total mass in chemical processes.+ Show more

Learning Objectives

• Understand how resource availability influences population growth and stability.
• Analyze graphical data representing population responses to environmental constraints.
• Interpret quantitative data sets related to ecosystem resource limits.+ Show more

Learning Objectives

• Explain how ecosystem models represent biotic and abiotic components using boundaries, variables, and scale.
• Interpret stock-and-flow system diagrams to predict how changes propagate through an ecosystem.
• Use model reasoning to describe equilibrium, resilience, and temporal dynamics after disturbances.

Learning Objectives

• Understand the conventions and interpretation strategies for different types of graphical representations, including scatter plots, residual plots, histograms, and log–log axes.
• Identify trends, assess model fit, and interpret the effects of scale transformations in various graphical data displays.
• Evaluate the appropriateness of graphical choices and comprehend their influence on model selection, parameter estimation, and uncertainty communication.+ Show more

Learning Objectives

• Explain how evolutionary change occurs at the population level through changes in allele frequency over generations
• Connect inherited variation and differential survival/reproduction to long-term shifts in traits
• Differentiate evolution from individual organisms changing within their lifetimes

Learning Objectives

• Identify the main drivers of sea level variability, including thermal expansion, land-ice mass loss, and glacio-isostatic adjustment.
• Understand how tide-gauge and satellite altimetry data are used to monitor sea level changes.
• Describe the methods used to attribute observed sea level patterns to specific causes.+ Show more

Learning Objectives

• Explain how the cell cycle proceeds and how checkpoints help ensure correct chromosomal segregation.
• Compare mitosis and meiosis in terms of chromosome number changes and reproductive cell formation.
• Describe how dysregulation of cell division can contribute to diseases such as cancer.

Learning Objectives

• Explain why multivariable causal questions can produce misleading conclusions when confounding factors and interactions are ignored
• Use conceptual tools (control matrices, causal graphs, and stratified comparisons) to plan how to separate causal effects from correlations
• Describe how design limits, measurement errors, and model assumptions affect confidence in causal claims