Reading comprehension Worksheets

Learning Objectives

• Distinguish qualitative criteria from quantitative criteria in engineering design problems
• Identify constraints that restrict feasible solutions (cost, space, safety, materials, and environmental limits)
• Explain how criteria and constraints guide trade-offs and decision-making in real-world engineering

Learning Objectives

• Define and describe the concept of chemical equilibrium and its significance in reactions.
• Apply Le Chatelier’s principle to predict how changes in concentration, temperature, and pressure affect equilibrium.
• Perform quantitative calculations related to equilibrium constants, concentrations, and yields in chemical reactions.+ Show more

Learning Objectives

• Explain how energy moves through ecosystems from producers to higher trophic levels
• Describe why only a fraction of energy is transferred between trophic levels
• Interpret how food chains and energy pyramids represent energy transfer

Learning Objectives

• Explain Newton’s second law using net force, mass, and acceleration (Fnet = m a).
• Describe how unbalanced, vector forces determine both the direction and magnitude of acceleration.
• Predict changes in velocity over time using acceleration and the duration of a net force.

Learning Objectives

• Explain how gravitational potential energy and kinetic energy change when an object moves up or down in a gravitational field
• Use conservation reasoning to predict how an object’s speed changes in a simplified (energy-conserving) system
• Describe how a roller coaster model represents energy transfers between potential and kinetic energy

Learning Objectives

• Explain how natural selection changes allele frequencies over generations when traits are heritable and improve survival or reproduction.
• Identify and describe evidence for natural selection, including fossil record patterns and homologous structures among related organisms.
• Connect genetic variation to observable traits and fitness, showing how environmental pressures influence which traits become more common.

Learning Objectives

• Explain how atomic composition and arrangement affect the properties of matter.
• Use atomic models to connect particle-level structure to macroscopic observations (conductivity, brittleness, melting point).
• Compare examples of the same element in different structures (e.g., diamond and graphite) to predict differences in properties.

Learning Objectives

• Explain Newton’s third law using action–reaction force pairs acting on two different objects
• Identify that action–reaction forces are equal in magnitude, opposite in direction, and occur at the same time
• Predict how different masses change acceleration even when force magnitudes are equal

Learning Objectives

• Explain how diffusion moves substances across a cell membrane based on concentration differences
• Compare passive transport and active transport in terms of energy use and direction
• Describe how membranes regulate entry of nutrients and removal of waste to maintain internal balance

Learning Objectives

• Understand the structure and function of the plasma membrane.
• Differentiate between passive and active transport mechanisms.
• Identify types of membrane proteins involved in transport.+ Show more

Learning Objectives

• Explain how impulse relates to change in momentum, including the role of net force and time interval
• Use the idea of impulse to predict how different force–time combinations can produce the same momentum change
• Determine how direction affects impulse and momentum change+ Show more

Learning Objectives

• Explain how invasive species can disrupt predator-prey and competitive relationships in an ecosystem.
• Describe how invasive species can change niches, energy flow, and nutrient cycling over time.
• Apply vocabulary (invasive species, niche, competition, disease, ecosystem stability) to real-world examples.

Learning Objectives

• Explain why accurate and precise measurements matter in science investigations.
• Choose appropriate tools and units to measure a physical quantity and record results consistently.
• Describe how significant figures and calibration reduce measurement error.+ Show more

Learning Objectives

• Explain how climate models represent physical processes that control Earth’s energy balance and atmospheric circulation
• Interpret how greenhouse-gas emission scenarios produce different projected temperature and precipitation trajectories
• Describe how climate feedbacks (water vapor, ice cover, and clouds) can amplify or dampen warming+ Show more

Learning Objectives

• Explain how simple machines redirect forces and trade force for distance to gain mechanical advantage.
• Identify and describe different types of simple machines such as levers, pulleys, and gears.
• Analyze energy transfer and conservation of work in ideal mechanical systems.+ Show more

Learning Objectives

• Explain how genes and alleles contribute to inherited traits from parents to offspring
• Distinguish between dominant and recessive alleles and predict which phenotype may appear
• Use evidence from population variation to support the idea of inherited factors affecting survival+ Show more

Learning Objectives

• Explain how energy moves through interconnected food webs rather than single linear food chains
• Describe how changes in one population can create direct and indirect effects at different trophic levels
• Interpret food web relationships to predict likely consequences of disturbances

Learning Objectives

• Explain how momentum depends on mass and velocity and identify momentum units.
• Apply the idea that total momentum of a system is conserved when only internal forces act.
• Compare elastic and inelastic collisions by focusing on momentum conservation versus kinetic energy behavior.

Learning Objectives

• Explain how fossils in sedimentary layers provide evidence for Earth’s past environments and conditions
• Use fossil correlations to infer that distant regions may have had similar organisms when tectonic plates were arranged differently
• Describe how rock characteristics and layer ages strengthen interpretations of geologic history and plate movement

Learning Objectives

• Understand different measures of dispersion and distribution shape, including variance, interquartile range, range, and coefficient of variation.
• Interpret how each variability metric informs confidence in statistical estimates and comparisons.
• Relate measures of variability to sampling design, heterogeneity across groups, and theoretical models.+ Show more

Learning Objectives

• Explain how earthquake locations relate to plate boundaries and fault belts
• Describe how seismic timing and wave behavior provide clues about tectonic motion and Earth’s interior
• Use simple models and evidence to connect seismic observations to Earth structure

Learning Objectives

• Explain how human demand for land, water, air, and energy can change Earth’s natural cycles.
• Describe how extraction, pollution, and land conversion can lead to habitat loss and ecosystem degradation.
• Use cause-and-effect reasoning to connect resource use decisions to observable environmental impacts.

Learning Objectives

• Understand how to quantify and interpret random and systematic uncertainties in measurements.
• Learn to calculate and interpret standard deviation, standard error, and confidence intervals.
• Apply error propagation methods to combined measurements and datasets.+ Show more

Learning Objectives

• Explain how models represent key features of a problem to support predictions before a final design exists.
• Differentiate between physical, graphical, and computational models using real-world examples.
• Use model-based reasoning to describe how changes in variables can affect outcomes.+ Show more

Learning Objectives

• Explain the difference between criteria (measurable success conditions) and constraints (limits on a design).
• Identify criteria and constraints in real-world engineering and science scenarios.
• Use criteria and constraints to narrow design options and justify tradeoffs.

Learning Objectives

• Explain how engineering design criteria and constraints guide the development of solutions
• Identify how scientific principles, models, and evidence connect design features to expected performance
• Use measurable requirements to justify whether a design meets safety and performance goals

Learning Objectives

• Explain how genetic variation arises from recombination during sexual reproduction and from mutations
• Describe how alleles inherited from parents can produce new trait combinations in offspring
• Connect trait variation in populations to the role of natural selection under different environmental conditions

Learning Objectives

• Explain how constraints shape feasible engineering designs
• Translate constraints into measurable requirements and identify trade-offs
• Evaluate design options for a system under power, flow, cost, regulatory, and environmental limits+ Show more

Learning Objectives

• Explain how light exhibits wave-like behavior in phenomena such as interference and diffraction
• Describe particle-like behavior of light using models based on discrete energy packets
• Apply the photoelectric effect to connect light frequency with electron emission

Learning Objectives

• Differentiate physical (reversible) changes from chemical (usually not reversible) changes using evidence
• Identify signs of chemical changes such as new substances, permanent color change, and gas production
• Use particle/atomic ideas to explain why reversing conditions may not restore the original substance

Learning Objectives

• Explain how wave energy can travel without the transfer of matter
• Use the relationship v = fλ to predict how frequency and wavelength affect wave speed in a given medium
• Compare how wave speed depends on medium and wave type (sound vs electromagnetic waves)+ Show more

Learning Objectives

• Explain the energy transformation process in a pendulum between potential and kinetic energy.
• Identify factors such as amplitude, mass, and length that influence pendulum motion and energy transfer.
• Describe how energy conservation is observed in an ideal pendulum system without dissipation.+ Show more

Learning Objectives

• Explain how multicellular organisms are organized from cells to tissues, organs, and organ systems.
• Describe how specialized structures at smaller scales support functions at larger scales (support, transport, regulation, coordination).
• Use evidence from a scientific description to predict how changes at one level can affect higher levels of organization.

Learning Objectives

• Identify multiple types of geological evidence that support plate movement over long time periods
• Explain how rock age, rock type, mountain belt alignment, and seafloor features help reconstruct past plate positions
• Use fossil and mineral information to evaluate whether regions could have been once-adjacent+ Show more

Learning Objectives

• Explain how conduction, convection, and radiation transfer thermal energy from warmer to cooler regions
• Identify evidence of each thermal transfer mode in everyday situations
• Use basic particle and fluid-motion ideas to justify temperature changes across a system

Learning Objectives

• Explain how energy and water efficiency, waste reduction, recycling, and pollutant treatment help reduce harm to Earth systems.
• Describe how restoring landscapes and conserving habitats support ecosystem stability.
• Use data-based comparisons to justify which sustainable solutions better meet human needs while reducing environmental impacts.

Learning Objectives

• Explain how engineering design connects scientific knowledge to human and societal needs
• Identify performance requirements related to access, reliability, safety, equity, and long-term usability
• Analyze how technology choices can improve or limit social outcomes

Learning Objectives

• Explain how gravitational attraction depends on mass and distance
• Describe gravity as a force that acts at a distance and changes an object’s motion
• Use gravity concepts to interpret everyday examples (weight, orbits, and weaker gravity far from Earth)

Learning Objectives

• Explain how tectonic activity, erosion, sedimentation, and weathering form major landforms and influence resource distribution
• Analyze how timescales of Earth processes affect land stability and the availability of resources
• Connect geologic history to real-world groundwater and ecosystem resources

Learning Objectives

• Explain how gravity influences the motion of orbiting bodies such as planets and moons
• Describe the relationships among mass, distance, and orbital speed in orbital motion
• Use observed orbital patterns to connect gravitational attraction to predictable trajectories+ Show more

Learning Objectives

• Explain how energy transfer causes temperature changes in materials
• Use the ideas of thermal energy and thermal equilibrium to predict warming and cooling
• Relate everyday observations of hot and cold to the direction of heat (energy) flow

Learning Objectives

• Explain how Earth’s matter moves among reservoirs (atmosphere, hydrosphere, geosphere, and biosphere) through geologic and biological processes
• Describe the water cycle and how evaporation, condensation, and precipitation link atmosphere, surface water, and groundwater
• Trace how carbon and nutrients circulate among atmosphere, oceans, organisms, and rocks+ Show more

Learning Objectives

• Explain what impact evaluation is and why it considers benefits, risks, and tradeoffs over time
• Identify common impact-evaluation criteria such as environmental effects, health outcomes, resource use, and unintended consequences
• Apply impact-evaluation thinking to compare two engineering or technology options using reliability, emissions, land impacts, and sustainability

Learning Objectives

• Differentiate weather from climate using clear definitions and examples.
• Explain how Earth’s energy balance and greenhouse gases can influence long-term temperature and precipitation patterns.
• Describe how natural records (ice cores and ocean sediments) provide evidence of past climate changes.+ Show more

Learning Objectives

• Explain how wave reflection and refraction change wave direction and wavelength at a boundary.
• Describe how transmission and absorption affect the amplitude and energy of waves crossing into another medium.
• Use wave models to interpret diffraction and interference patterns from overlapping wave sources.

Learning Objectives

• Understand the role of conceptual, statistical, and numerical models in representing Earth processes.
• Analyze the limitations and uncertainties associated with different Earth models.
• Interpret model outputs and translate them into visual and interpretive diagrams.+ Show more

Learning Objectives

• Understand the types of evidence supporting common ancestry among organisms.
• Identify patterns in homologous structures, fossil records, and molecular data that indicate evolutionary relationships.
• Explain how shared characteristics and genetic similarities support the theory of evolution.+ Show more

Learning Objectives

• Define and identify physical properties such as density, melting point, boiling point, color, hardness, solubility, and electrical conductivity.
• Explain how physical properties can be used to identify and separate substances.
• Describe the concepts of density and solubility and their practical applications in material identification.+ Show more