Grade 6 Worksheets

Learning Objectives

• Identify and describe mutualism, competition, predation, and parasitism as recurring species interaction types.
• Use observations and species traits to predict how interaction strength changes across forest, grassland, and freshwater ecosystems.
• Explain how niche partitioning, resource overlap, and behavioral strategies affect the outcomes of species interactions.

Learning Objectives

• Explain how microscopy observations and preserved specimens provide evidence that cells are the basic unit of life.
• Distinguish single-celled organisms from multicellular organisms using observable cell features.
• Connect cell characteristics to higher levels of biological organization (cells → tissues → organs → whole organisms).

Learning Objectives

• Explain how key organelles contribute to essential cell functions
• Connect cell structure (nucleus, ribosomes, mitochondria, chloroplasts) to their roles
• Compare plant and animal cell organelles to understand specialization

Learning Objectives

• Explain how energy is transferred during photosynthesis and respiration in plants and animals.
• Describe how matter cycles between living things and the environment using gases and organic molecules.
• Connect leaf gas exchange (stomata) to measurements of oxygen consumption and energy use.

Learning Objectives

• Explain how negative feedback helps maintain internal stability by linking sensors, control centers, and effectors.
• Describe positive feedback and how it can amplify changes in the body.
• Use examples (thermoregulation, blood glucose control, and kidney osmotic balance) to trace cause-and-effect pathways.

Learning Objectives

• Explain how monomers form polymers through condensation reactions and how hydrolysis breaks polymers apart
• Connect molecular structure of macromolecules (proteins, nucleic acids, lipids, carbohydrates) to their functions in cells
• Describe how enzymes and membranes relate to molecular processes

Learning Objectives

• Explain how tissues and organs work together in the circulatory, respiratory, digestive, and nervous systems.
• Describe how organ systems interact to support movement of gases and nutrients in the body.
• Connect cellular processes (like diffusion and energy use) to system-level outcomes.

Learning Objectives

• Explain how cells communicate using chemical and electrical signals
• Describe how receptors and signal transduction pathways connect to specific cell responses
• Compare rapid nervous impulses with longer-lasting endocrine effects using feedback circuits+ Show more

Learning Objectives

• Explain how genetic variation and environmental factors can produce phenotypic variation in organisms.
• Use examples (inheritance, nutrition, and temperature-dependent expression) to describe how traits change across development and populations.
• Connect DNA sequence changes and environmental/epigenetic influences to differences in structure and function.

Learning Objectives

• Explain how unequal solar heating and Earth’s rotation create global atmospheric circulation patterns.
• Describe how ocean currents and circulation help move heat and moisture around the planet.
• Use climate-cell models and current patterns to predict regional climate zones and related events.

Learning Objectives

• Interpret observational and instrumental data to identify patterns in natural hazards.
• Estimate recurrence intervals from hazard histories to support risk assessment.
• Use data records (e.g., seismic, tsunami, storms, floods) to infer likely locations and magnitudes of future events.+ Show more

Learning Objectives

• Explain how slow and rapid geologic processes modify Earth’s surface over different time scales.
• Use evidence such as rock strata, fossils, uplifted terraces, and erosion rates to support claims about landscape evolution.
• Compare how rivers and glaciers transport sediment and reshape landforms.

Learning Objectives

• Explain how matter and energy move among Earth’s geosphere, hydrosphere, atmosphere, and biosphere using models.
• Describe feedbacks (positive and negative) that change system behavior, such as ice-albedo effects.
• Use examples like sediment transport and nutrient cycling to predict observable patterns over time.

Learning Objectives

• Explain how solar energy and gravity drive the water cycle processes (evaporation, condensation, precipitation, runoff, infiltration, and groundwater storage).
• Identify how water moves between reservoirs (ocean, atmosphere, land/ice, rivers, and aquifers) and how phase changes affect that movement.
• Describe examples such as evapotranspiration, river discharge, aquifer recharge, and seasonal snowmelt and connect them to storage timescales.

Learning Objectives

• Interpret surface weather maps using pressure systems, fronts, and temperature changes to predict short-term weather.
• Explain how air masses, pressure gradients, and fronts affect wind shifts and precipitation patterns.
• Use precipitation, temperature, and radar clues to describe likely storm development such as thunderstorms and squall lines.+ Show more

Learning Objectives

• Explain how momentum is conserved in an isolated two-object system during a collision
• Identify action-reaction pairs and the forces acting during contact
• Differentiate elastic and inelastic collisions using how objects move after collision

Learning Objectives

• Explain how electric forces act between charged objects and how magnetic forces act between magnets and/or current-carrying wires.
• Predict whether an electric or magnetic force becomes stronger or weaker when distance changes.
• Describe how the direction of force depends on charge polarity or magnet orientation and how forces can balance or become unbalanced.

Learning Objectives

• Explain how net force (the vector sum of forces) affects the motion of an object.
• Use the relationship net force equals mass times acceleration to predict changes in acceleration.
• Distinguish between mass (inertia) and forces when reasoning about motion.

Learning Objectives

• Explain how gravitational attraction depends on mass and distance using Earth–Moon and falling-object examples
• Differentiate gravitational forces from contact forces like friction and how each affects motion
• Use evidence and reasoning to argue why changing mass or separation changes attraction+ Show more

Learning Objectives

• Explain how Earth’s rotation causes day and night.
• Describe how Earth’s 23.5° axial tilt and orbit affect seasonal changes in sunlight and temperatures.
• Use solstices and equinoxes as predictable observational anchors for daylight and solar altitude.

Learning Objectives

• Explain how the relative positions of Earth, the Moon, and the Sun produce lunar phases and eclipses.
• Use line-of-sight and shadow geometry to distinguish phase changes from shadowing events.
• Describe the sequence and timing of primary lunar phases and predict when eclipses can occur.

Learning Objectives

• Explain how gravitational attraction governs planetary and satellite motion.
• Describe how mutual gravity can produce elliptical orbits and changing orbital speed.
• Connect orbital period and orbital path characteristics to relative mass and distance.

Learning Objectives

• Use astronomical units (AU) and orders of magnitude to compare Earth–Sun distances at an appropriate scale.
• Compare planetary sizes and orbital periods using data and proportional or log-scale representations.
• Interpret tables and charts that show relative spacing and relationships in the solar system.

Learning Objectives

• Identify and write clear success measures for a design problem using criteria and constraints.
• Explain how limitations (materials, cost, and safety) affect possible solutions.
• Use cause-and-effect reasoning to predict impacts on people and natural systems.

Learning Objectives

• Compare design solutions using clear criteria and constraints to decide which option is most promising to improve.
• Use quantitative and qualitative metrics (such as efficiency, durability, manufacturability, and cost) to justify design trade-offs.
• Refine and rank multiple prototypes using evidence from simple models, observations, and measurements.

Learning Objectives

• Use data from comparative tests to identify performance characteristics and trade-offs between design alternatives.
• Interpret graphs and averages to support decisions about improving a design while meeting constraints.
• Discuss measurement error and explain how uncertainty can affect conclusions from test results.

Learning Objectives

• Explain how human land use, fossil fuel use, agriculture, and waste management change Earth’s systems.
• Describe how these changes can alter biogeochemical cycles, climate drivers, and ecosystem structure.
• Use causal reasoning to connect human activities with environmental trends over time and space.

Learning Objectives

• Explain how tectonic processes, atmospheric dynamics, and the hydrologic cycle contribute to the origin and severity of natural hazards.
• Describe patterns of natural hazards using evidence such as historical records, seismic data, satellite observations, and hazard maps.
• Use cause-and-effect reasoning to predict how hazards can impact communities and infrastructure.

Learning Objectives

• Identify the four aerodynamic forces (lift, drag, thrust, and weight) and describe how each affects motion.
• Explain how vector addition and equilibrium relate to steady level flight, using directions and magnitudes of forces.
• Compare how changes in forces can cause climb, cruise, or descent in propeller and glider examples.

Learning Objectives

• Explain how a pressure map shows surface pressure changes around an airfoil and how these relate to lift
• Identify key features of pressure maps, including stagnation points, suction peaks, and pressure minima across the chord
• Describe how angle of attack, camber, and adverse pressure gradients can shift pressure patterns and affect boundary-layer separation

Learning Objectives

• Differentiate static stability from dynamic stability and describe how aircraft behave after a disturbance
• Explain how center of gravity (CG) location relative to the aerodynamic center affects longitudinal stability
• Describe how dihedral angle and tail/fin design contribute to roll, directional, and pitch stability+ Show more

Learning Objectives

• Explain how wind tunnels measure aerodynamic forces and moments on models using balance systems and pressure taps.
• Describe how similar flow conditions, such as Reynolds and Mach numbers, affect scaling from models to real objects.
• Calculate lift and drag coefficients from measured forces and relate flow visualization to design improvements.

Learning Objectives

• Explain how Earth’s rotation and orbit make the Sun, Moon, and stars appear to move across the sky.
• Define diurnal rising and setting and describe what observers see from Earth.
• Describe the roles of the horizon and the celestial sphere in understanding apparent stellar paths.+ Show more

Learning Objectives

• Explain how solar and lunar eclipses happen using Earth–Moon–Sun alignment and the ideas of umbra and penumbra.
• Distinguish the causal mechanisms behind eclipse visibility and tidal range by relating them to the Earth–Moon–Sun system.
• Describe how spring and neap tides form and why some coasts experience stronger tide effects.

Learning Objectives

• Describe how optical, radio, and space-based observational instruments help us study the solar system
• Explain how different wavelengths reveal composition, motion, and temperature
• Compare ground-based and space-based observations and identify key advantages of orbital platforms

Learning Objectives

• Explain how elliptical and near-circular orbits affect distance from a central body and orbital speed
• Describe how gravity and inertial motion balance to keep an object in orbit
• Relate orbital period, distance, and energy qualitatively for real satellites such as the Moon and low Earth orbit satellites

Learning Objectives

• Explain how the relative positions of the Sun, Earth, and Moon determine which parts of the Moon are illuminated from Earth.
• Describe the sequence and timing of lunar phases (new, crescent, quarter, gibbous, full) using illumination geometry rather than measurements.
• Differentiate lunar phases from eclipses by identifying what changes in each event.

Learning Objectives

• Describe major types of robotic missions (flyby, orbiter, lander, sample-return) and what each can measure
• Explain how mission design choices help overcome distance, communication delay, and harsh planetary environments
• Use historical mission examples to connect engineering constraints with data collection methods

Learning Objectives

• Explain how Earth’s axial tilt causes different hemispheres to receive different amounts of sunlight during the year
• Describe how Earth’s orbit affects the timing of equinoxes and solstices through changes in solar elevation
• Connect sunlight angle and day length to seasonal differences in climate and biological cycles

Learning Objectives

• Identify major components of the solar system and describe how they are classified.
• Compare terrestrial planets, gas giants, dwarf planets, and small-body regions using composition, orbital zone, and atmospheric or surface conditions.
• Explain how temperature and energy from the Sun influence planetary environments and habitability.

Learning Objectives

• Describe the relative sizes, masses, and mean distances of the Sun, Earth, and Moon.
• Explain how gravitational interactions shape orbital motion and why stable orbits can form.
• Describe how the Earth–Moon barycenter influences their mutual motion and how the Sun dominates the system’s overall gravity.+ Show more

Learning Objectives

• Explain how observed symptoms can indicate different faults in series and parallel circuits.
• Use expected measurement patterns to compare predictions with observations during troubleshooting.
• Describe how component behavior changes diagnostic conclusions in circuit topology (series vs. parallel).

Learning Objectives

• Explain how mixed series-parallel circuits can be broken into simpler series and parallel subcircuits
• Describe how current and voltage changes (or stays the same) in series parts versus parallel branches
• Predict how removing or failing a component affects brightness and readings in a combined circuit

Learning Objectives

• Describe the function of major circuit components: power sources, resistive loads, switches, and connectors
• Connect physical circuit parts to typical schematic symbols and explain how they affect current and voltage
• Interpret qualitative characteristic curves for common components and relate them to how circuits behave

Learning Objectives

• Explain how free charge carriers in conductors allow electrical current to flow.
• Describe how metallic structure and material type affect conductivity.
• Identify how temperature and cross-sectional area influence the ease of charge flow.

Learning Objectives

• Explain that electric current is an organized movement of charges through a conductor
• Distinguish conventional current direction from electron flow
• Describe how potential difference (voltage) drives charge to move in a circuit+ Show more

Learning Objectives

• Explain how triboelectric effects move electric charge between materials when they rub or separate.
• Use the triboelectric series idea to predict which material more likely becomes positively or negatively charged.
• Describe attractions, repulsions, and electrostatic discharge, including the role of grounding and charge neutralization.

Learning Objectives

• Explain power as the rate of energy transfer and connect it to everyday electrical devices.
• Use relationships between current, voltage, and power to describe how circuit elements dissipate energy as heat.
• Describe how efficiency affects how much electrical energy becomes useful output versus wasted heat.