Science Worksheets

Learning Objectives

• Understand the basic properties of waves such as amplitude, wavelength, and frequency.
• Identify different types of waves: transverse and longitudinal.
• Describe how waves transfer energy without transferring matter.+ Show more

Learning Objectives

• Understand the concept of chemical reactions and how matter is conserved.
• Identify reactants and products in chemical equations.
• Recognize energy changes during chemical reactions, including exothermic and endothermic processes.+ Show more

Learning Objectives

• Understand the purpose and components of scatter plots
• Interpret relationships and trends from scatter plot data
• Learn how to construct accurate and informative scatter plots+ Show more

Learning Objectives

• Understand the basic types of microorganisms that cause diseases.
• Describe how bacteria, viruses, and fungi transmit from one host to another.
• Explain the immune system's response to different pathogens.+ Show more

Learning Objectives

• Explain how observed circuit symptoms can be used to infer likely faults using circuit topology and component behavior.
• Predict measurement patterns for series and parallel circuits and compare them to real observations during troubleshooting.
• Identify which component or connection is most likely causing incorrect readings such as unequal brightness, unexpected current, or open continuity.

Learning Objectives

• Identify the main functions of the circulatory system.
• Recognize key organs of the circulatory system, such as the heart and blood vessels.
• Understand how the circulatory system works with other body systems to support life functions.

Learning Objectives

• Explain how ecological restoration uses reference conditions and evidence-based success indicators.
• Compare active and passive restoration approaches and describe trade-offs between short-term recovery and long-term resilience.
• Identify factors that affect restoration planning, including habitat connectivity, corridor design, and genetic considerations.+ Show more

Learning Objectives

• Explain how homeostasis maintains internal conditions within narrow limits using sensor-effector control loops.
• Distinguish set points and tolerances and describe why deviations trigger responses.
• Evaluate physiological trade-offs that organisms make to stay stable in changing environments.

Learning Objectives

• Explain how the heart’s rhythmic pumping and vessel network move blood through the body
• Compare arteries, veins, and capillaries based on structure and function
• Describe how capillaries support exchange of oxygen, nutrients, and wastes with body cells

Learning Objectives

• Identify how births, deaths, immigration, and emigration change population size.
• Explain how density-dependent and density-independent factors affect population growth.
• Use key vocabulary from a passage to answer science questions.

Learning Objectives

• Explain how Earth's internal layers and plate motion drive tectonic processes.
• Compare divergent, convergent, and transform plate boundaries and predict their effects on Earth’s surface.
• Connect real-world events like earthquakes, volcanic eruptions, and mountain building to plate boundaries.

Learning Objectives

• Describe the basic properties of Earth's magnetic field.
• Explain how a compass indicates direction based on Earth's magnetism.
• Identify regional variations in magnetic declination.+ Show more

Learning Objectives

• Understand the concept of energy changes during chemical reactions
• Recognize how bond energies influence reaction heat exchange
• Learn to apply Hess’s law for calculating enthalpy changes+ Show more

Learning Objectives

• Describe how atoms combine to form simple molecules like H2O and NaCl.
• Use models such as ball-and-stick and space-filling representations to illustrate molecules.
• Explain the relationship between molecular structure and observable patterns of matter.+ Show more

Learning Objectives

• Understand the concept of force and how it affects motion
• Differentiate between forces that act on objects
• Explain how force influences acceleration and speed+ Show more

Learning Objectives

• Explain how scientific models connect observable evidence to causal mechanisms.
• Identify how new evidence can lead to refining assumptions, relationships, or parameters in a model.
• Evaluate whether a model’s predictions match observations and determine what refinement is appropriate.

Learning Objectives

• Describe Earth as concentric layers (crust, mantle, core) and identify key boundaries by their physical properties.
• Compare lithosphere and asthenosphere in terms of mechanical behavior and how that behavior relates to plate tectonics.
• Explain how density, temperature, and pressure change with depth and how these factors influence material phase and motion.+ Show more

Learning Objectives

• Understand the structure and function of organs in the human body.
• Recognize how tissues interact within organs to perform specific functions.
• Learn about the roles of the heart and other organs in maintaining life.

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous and analogous structures among species.
• Analyze morphological features to infer phylogenetic relationships.+ Show more

Learning Objectives

• Explain what heritability means and how it relates to genetic variation and observed trait differences.
• Distinguish heritable influences from environmental influences on traits and fitness.
• Describe how natural selection can change allele frequencies and trait distributions over generations.+ Show more

Learning Objectives

• Understand how work done by forces results in changes in a system's energy components.
• Interpret graphical relationships between energy and variables to analyze energy transfer.
• Connect force-based descriptions with measurable energy outcomes in moving and deforming systems.+ Show more

Learning Objectives

• Explain shared-electron (covalent) bonding using Lewis representations and octet considerations.
• Assess Lewis structures using formal charge and resonance to improve molecular descriptions.
• Relate electronegativity and bond polarity to trends from polar covalent to ionic character.+ Show more

Learning Objectives

• Explain how atomic spectra arise from quantized electronic energy transitions
• Use spectral line patterns to infer element identity and related atomic structure information
• Describe how selection rules and line broadening affect observed emission/absorption spectra+ Show more

Learning Objectives

• Explain how ocean and atmosphere interactions transfer heat and moisture.
• Describe the impact of sea-surface temperature changes on weather patterns.
• Identify the roles of El Niño and La Niña in regional climate variability.+ Show more

Learning Objectives

• Differentiate endothermic and exothermic reactions using enthalpy changes
• Explain how breaking and forming bonds relate to reaction enthalpy
• Use standard enthalpies of formation and Hess’s law concepts to predict heat changes+ Show more

Learning Objectives

• Explain how test results provide evidence for improving a design
• Describe how engineers use small changes to improve performance toward a goal
• Identify what to adjust when outcomes do not match the design goal

Learning Objectives

• Understand the cause-and-effect relationships between predator and prey populations.
• Identify how changes in predator numbers affect prey populations and vice versa.
• Analyze feedback mechanisms in ecological communities.

Learning Objectives

• Explain how quantum numbers describe electron orbitals and electron spin
• Use Aufbau principle, Pauli exclusion principle, and Hund’s rule to determine electron filling order
• Relate electron configurations to valence electrons, ion formation, and periodic trends

Learning Objectives

• Explain how energy changes in chemical reactions can be detected through temperature changes.
• Differentiate exothermic and endothermic reactions using the idea of bond breaking and bond formation.
• Use energy evidence along with other signs to distinguish chemical change from physical change.

Learning Objectives

• Understand what growth rings are and how they form in trees.
• Learn how growth rings can tell us about a tree's age and the environment during different years.
• Identify parts of a tree where growth rings are visible.+ Show more

Learning Objectives

• Understand how line graphs are used to display data trends over time.
• Interpret features of line graphs such as slope, intercept, and patterns.
• Identify upward and downward trends, constants, and variations in data.+ Show more

Learning Objectives

• Explain how reproductive isolation leads to the formation of distinct species through genetic divergence
• Compare allopatric and sympatric speciation using examples of barriers to gene flow
• Distinguish prezygotic and postzygotic reproductive barriers and predict their effects on interbreeding+ Show more

Learning Objectives

• Explain how vector decomposition separates a vector into orthogonal components along perpendicular axes.
• Use trigonometric relationships to relate component magnitudes to a vector’s magnitude and direction.
• Resolve velocity and acceleration into horizontal and vertical components for 2D motion analysis.+ Show more

Learning Objectives

• Explain how coupled Earth system models integrate atmosphere, ocean, cryosphere, and biosphere processes to simulate system behavior.
• Describe common model boundary conditions and diagnostics, including ensemble means and uncertainty ranges.
• Evaluate how forcings (e.g., volcanic eruptions and land-use change) and observational constraints affect model skill and projections.

Learning Objectives

• Describe the basic structural features of DNA, including the double helix and nucleotide components.
• Explain the base-pairing rules and how they enable DNA's role in information storage.
• Identify the significance of major and minor grooves in DNA for protein interactions.+ Show more

Learning Objectives

• Explain how labeled diagrams help communicate relationships between components in a design.
• Use data summaries to compare test results to requirements, including noting uncertainty or variation.
• Justify design decisions by connecting observed outcomes to specific design trade-offs.+ Show more

Learning Objectives

• Interpret position–time and velocity–time graphs by connecting slope and area to velocity and displacement
• Use constant-acceleration equations to predict motion along a straight line and check the direction with signs
• Relate acceleration (including negative values) to changes in velocity and the “curving” or “straightness” of motion graphs

Learning Objectives

• Identify different types of intermolecular forces
• Understand how molecular structure influences intermolecular forces
• Explain the effect of intermolecular forces on physical properties

Learning Objectives

• Understand how position-time graphs represent an object's motion
• Identify key features of position-time graphs such as slope and intercepts
• Interpret what the shape of a graph indicates about the object's motion+ Show more

Learning Objectives

• Define what mitochondria are and their function in energy production.
• Describe the structure of mitochondria and how it relates to their function.
• Explain how mitochondria convert nutrients into energy through cellular respiration.+ Show more

Learning Objectives

• Explain how a keystone species can connect freshwater and marine food webs.
• Analyze how abiotic factors and human activities interact to change population dynamics and ecosystem resilience.
• Use evidence from multiple pressures to describe trade-offs in conservation decisions.

Learning Objectives

• Decompose projectile motion into independent horizontal and vertical components and apply kinematics equations under uniform gravity.
• Predict time of flight, range, and maximum height from initial conditions using trajectory equations for two-dimensional motion.
• Identify and justify the assumptions (e.g., negligible air resistance) that make projectile models accurate for idealized problems.

Learning Objectives

• Define what pure substances are and identify their properties
• Differentiate pure substances from mixtures and solutions
• Recognize regional examples of matter classification+ Show more

Learning Objectives

• Explain how energy moves through an ecosystem from producers to consumers and decomposers
• Describe how trophic levels and metabolic processes affect the amount of usable energy available
• Use food-chain and food-web ideas to predict how changes at one trophic level can affect others+ Show more

Learning Objectives

• Understand the components of ecosystems and their roles
• Identify different organisms within food chains
• Explain the flow of energy and matter through ecosystems+ Show more

Learning Objectives

• Explain how stellar mass influences the main sequence lifetime and later evolution.
• Describe major evolutionary stages of stars, including red giant expansion and core helium fusion.
• Connect Hertzsprung-Russell diagram ideas and spectral classification to stellar properties.+ Show more

Learning Objectives

• Explain how static charge builds up through triboelectric effects when materials contact and separate.
• Use the triboelectric series to predict which material tends to gain or lose electrons.
• Describe attraction, repulsion, grounding, and electrostatic discharge in everyday situations.+ Show more

Learning Objectives

• Explain how covalent bonding forms by sharing electron pairs and achieving filled valence shells.
• Predict how bond polarity relates to electronegativity differences and affects molecular dipoles.
• Use bond order, bond length, and bond energy to compare stability and physical/chemical behavior.+ Show more