Science Worksheets

Learning Objectives

• Describe the major processes of the hydrologic cycle (evaporation, condensation, precipitation, infiltration, and runoff).
• Explain how solar energy and gravity drive movement of water between Earth’s reservoirs.
• Compare residence times and relative sizes of oceans, glaciers, and aquifers and how that affects freshwater availability.

Learning Objectives

• Understand the concept of density and how it relates mass and volume.
• Learn how density affects whether objects float or sink in water.
• Recognize that density depends on how tightly matter is packed.+ Show more

Learning Objectives

• Identify major structures involved in the airflow pathway from the nose to the alveoli.
• Explain how airflow and diffusion set up respiratory gas exchange conditions.

Learning Objectives

• Explain how chemical energy is stored and transferred through chemical bonds in living systems
• Compare photosynthesis and cellular respiration in terms of energy conversion and matter rearrangement
• Describe how environmental conditions can affect the rate of chemical processes and energy availability

Learning Objectives

• Differentiate between testable and non-testable scientific questions.
• Identify independent, dependent, and control variables in a proposed investigation.
• Explain how a hypothesis predicts a relationship that can be evaluated using evidence.

Learning Objectives

• Describe the differences between passive and active transport mechanisms in cell membranes.
• Explain how diffusion and osmosis contribute to maintaining cellular homeostasis.
• Identify factors affecting the rate of diffusion and osmosis across membranes.+ Show more

Learning Objectives

• Explain conservation of energy in a defined system using kinetic, potential, and thermal energy
• Describe how energy is transferred or converted during collisions and gravity-driven motion
• Use an energy accounting model to predict changes in speed, temperature, and motion over time+ Show more

Learning Objectives

• Analyze evidence for climate change drivers such as greenhouse gases, land-use change, and natural variability.
• Assess impacts of climate change on sea levels, precipitation, and agriculture.
• Interpret temperature and CO2 records, and understand carbon-cycle exchanges.+ Show more

Learning Objectives

• Explain how cells communicate using chemical and electrical signals.
• Differentiate between rapid nervous responses and longer-term hormonal effects.
• Describe key signaling pathways such as synaptic transmission and receptor-mediated gene expression.+ Show more

Learning Objectives

• Identify patterns in datasets using descriptive statistics and visual inspection
• Explain how moving averages and seasonal thinking can reveal trends and cycles
• Recognize anomalies and propose plausible environmental explanations while considering limits of data+ Show more

Learning Objectives

• Explain the difference between an observation and a testable claim.
• Identify independent, dependent, and constant variables in a hypothesis.
• Write and evaluate hypotheses using measurable variables and realistic expectations.

Learning Objectives

• Explain how power relates to current and voltage in resistive circuits, including energy dissipation over time.
• Analyze source power delivered to a load while accounting for internal resistance effects.
• Model charging and discharging in simple RC circuits using exponential time dependence and the time constant.

Learning Objectives

• Explain how diagrams and physical/computational models link cell structure to cell function.
• Use models to describe diffusion and osmosis across a cell membrane.
• Interpret how organelles work together to support cell viability.+ Show more

Learning Objectives

• Understand different classification schemes for elements, compounds, and mixtures.
• Identify characteristics that distinguish pure substances from mixtures.
• Recognize common separation techniques like filtration and distillation.+ Show more

Learning Objectives

• Understand the concept of reactants and products in a chemical reaction.
• Identify reactants and products in different diagrams and descriptions.
• Describe how properties of products differ from those of reactants.+ Show more

Learning Objectives

• Explain how human activities can alter Earth’s material cycles across the geosphere, hydrosphere, atmosphere, and biosphere.
• Describe how changes in carbon, nitrogen, phosphorus, and water flows can affect erosion, nutrient loading, air quality, and greenhouse-gas concentrations.
• Use evidence from a scientific description to predict likely system-wide effects of land-use change, extraction, and waste management.

Learning Objectives

• Understand how human activities like habitat destruction influence biodiversity.
• Identify the effects of habitat fragmentation and pollution on ecosystems.
• Recognize the ecological consequences of invasive species and climate change.

Learning Objectives

• Interpret scientific data related to sea level changes.
• Identify causes of sea-level variability, including thermal expansion and ice-sheet loss.
• Distinguish between different measurement methods such as satellite altimetry and tide gauges.+ Show more

Learning Objectives

• Define and distinguish between work, kinetic energy, and potential energy.
• Explain the principle of energy conservation in closed systems.
• Identify and differentiate between conservative and nonconservative forces with examples.+ Show more

Learning Objectives

• Use the heat transfer relationships to calculate thermal energy changes from mass and temperature change
• Explain how conduction, convection, and radiation move thermal energy and how signs indicate direction of energy flow
• Apply conservation of energy ideas to closed-system thermal processes such as heating and phase changes

Learning Objectives

• Understand how environmental changes influence the usefulness of traits in organisms.
• Describe how populations respond to shifts in resources and conditions through natural selection.
• Explain the connection between adaptation, ecosystem change, and resilience.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Identify producers, consumers, and decomposers in food webs and explain how each gets energy.
• Describe how energy decreases across trophic levels and how matter cycles through decomposers.
• Use food-web relationships to predict the effects of removing or increasing a species.

Learning Objectives

• Explain how reliability-centered optimization uses performance expectations across repeated operation and changing conditions.
• Identify and interpret reliability metrics such as stability, sustained efficiency, and acceptable failure rates.
• Describe how models/simulations and test results work together to validate reliability targets and guide design refinements.

Learning Objectives

• Define and differentiate between passive and active transport mechanisms across cell membranes.
• Explain the processes of diffusion, osmosis, facilitated diffusion, and active transport.
• Identify the roles of carrier proteins and pumps in membrane transport.+ Show more

Learning Objectives

• Explain how common technology parts (wheels and axles, levers, and pulleys) change motion and force to meet a function.
• Match a device’s intended function to an appropriate component by using criteria and constraints.
• Use testing results to suggest specific changes to a prototype.

Learning Objectives

• Explain how energy enters ecosystems through producers and moves through feeding relationships in food chains and food webs.
• Describe what happens to energy at each trophic level and why this often forms a pyramid-like pattern.
• Identify the roles of consumers and decomposers in transferring energy and recycling matter.

Learning Objectives

• Explain how systems thinking and decision models support comparing mitigation and adaptation strategies under uncertainty.
• Use scenario analysis and integrated assessment ideas to evaluate trade-offs among greenhouse gas reduction, public health, and economic development.
• Apply cost-benefit reasoning and lifecycle thinking to compare policy instruments (e.g., carbon pricing, land-use planning, and infrastructure investment) across time and space.

Learning Objectives

• Identify the main goals of ecological restoration.
• Describe how habitat, soils, and species are restored to support ecosystem recovery.
• Explain why monitoring and adaptive management are used in restoration projects.

Learning Objectives

• Identify a passage’s main idea and match supporting evidence
• Explain how organelle abundance relates to cell function
• Use vocabulary from cellular specialization to answer questions

Learning Objectives

• Understand how uneven heating of Earth causes air movement.
• Identify how warm and cold air masses influence wind patterns.
• Describe the role of circulation patterns in weather development.+ Show more

Learning Objectives

• Understand how different organ systems communicate through feedback mechanisms
• Identify examples of feedback loops in physiological processes
• Explain the role of redundancy and cross-regulation among body systems+ Show more

Learning Objectives

• Understand the basic principles of hydraulic systems and Pascal's law.
• Learn how force is transmitted and amplified using pistons and interconnected chambers.
• Identify real-world applications like hydraulic jacks and brake systems.+ Show more

Learning Objectives

• Understand how Earth's radiative balance influences climate.
• Identify different energy transfer processes such as conduction, convection, and radiation.
• Analyze how differential heating drives atmospheric circulation and weather variability.+ Show more

Learning Objectives

• Understand how the slope of displacement–time graphs indicates velocity.
• Interpret the area under velocity–time graphs to determine displacement.
• Identify non-uniform acceleration through curved graphs and discontinuities.+ Show more

Learning Objectives

• Explain how energy enters an ecosystem and moves through trophic levels.
• Describe the roles of producers, consumers, and decomposers in energy flow.
• Use the concept of energy loss between trophic levels to predict food-chain limits.

Learning Objectives

• Explain how evaporation and transpiration add water vapor to the atmosphere
• Describe how temperature and available liquid water affect the rate of water vapor formation
• Connect phase changes (evaporation, condensation) to the water cycle and precipitation+ Show more

Learning Objectives

• Use Ohm’s law and power relationships to calculate voltage, current, resistance, and power in circuit elements.
• Analyze series and parallel circuits using quantitative relationships and compare their electrical behavior.
• Apply Kirchhoff’s rules to solve for unknown currents or voltages in multi-loop circuits.+ Show more

Learning Objectives

• Explain how birth rate and death rate shape population change over time using quantitative reasoning
• Compare exponential growth with logistic growth and describe the role of carrying capacity
• Identify density-dependent and density-independent limiting factors and connect them to real data patterns

Learning Objectives

• Explain how accuracy and precision affect the credibility of scientific measurements.
• Use appropriate units, tools, and recording practices when measuring physical quantities.
• Identify how significant figures and consistent procedures improve data quality.+ Show more

Learning Objectives

• Explain the conservation of mass principle in closed chemical systems using atomic reasoning
• Use mass measurements and particle conservation ideas to interpret chemical reactions (including gas and combustion scenarios)
• Apply conservation of mass to simple material-balance situations relevant to real-world resource processing

Learning Objectives

• Explain how internal systems (transport, digestion, coordination) help organisms survive in their environments
• Describe how external structures (shells, spines, coloration, beaks) increase survival, feeding, and movement
• Use functional relationships to predict how a trait increases an organism’s chance of obtaining resources and reproducing

Learning Objectives

• Identify whether a conclusion follows from the evidence and methods described
• Match the scope of a claim to the strength and limits of the data
• Use criteria like relevance, consistency, and uncertainty to evaluate claims

Learning Objectives

• Explain the roles of magnification, resolution, and contrast in microscopy image quality
• Compare how light microscopes and electron microscopes create magnified images
• Use scale bars and preparation/staining information to interpret micrographs accurately

Learning Objectives

• Explain how energy transfer between trophic levels is limited by energy used for life processes and energy lost as heat.
• Describe how energy loss affects the number of trophic levels and the size of populations in food webs.
• Interpret cause-and-effect relationships in ecosystems when a key food source is removed.

Learning Objectives

• Interpret long-term climate trends by comparing average values and extreme events over time.
• Use data from temperature, precipitation, and storm-frequency records to make evidence-based claims.
• Explain how climate indicators and ocean-atmosphere phenomena (El Niño and La Niña) can change rainfall and temperatures.

Learning Objectives

• Explain how moving water erodes Earth materials and transports sediment
• Describe how decreasing water energy leads to deposition
• Connect erosion and deposition to landform features such as river terraces and deltas+ Show more

Learning Objectives

• Describe the three main pathways of heat transfer: conduction, convection, and radiation.
• Identify examples of each heat transfer mechanism in real-world contexts.
• Explain how temperature change and state change indicate which transfer pathway dominates.