Grade 6 Science Worksheets

Learning Objectives

• Understand the difference between speed and velocity in describing motion.
• Explain how direction affects velocity even when speed remains constant.
• Calculate average speed using total distance and elapsed time.+ Show more

Learning Objectives

• Understand the role of decomposers in recycling nutrients in ecosystems.
• Describe the process of decomposition and its importance for environmental health.
• Identify organisms involved in decomposition and their functions.+ Show more

Learning Objectives

• Understand the concept of food chains and their role in energy transfer.
• Identify producers, consumers, and trophic levels within a food chain.
• Explain how energy moves through different organisms in an ecosystem.+ Show more

Learning Objectives

• Understand the difference between heat and temperature and how they relate to energy transfer.
• Describe how heat moves from warmer to cooler regions and how this affects systems.
• Explain why the same temperature does not necessarily mean the same amount of energy.+ Show more

Learning Objectives

• Understand how organisms depend on each other in an ecosystem.
• Identify examples of predator-prey relationships, competition, and mutualism.
• Explain how changes in one population can affect the entire community.

Learning Objectives

• Define what a niche is and explain its significance in ecosystems.
• Describe how different species occupy distinct niches to reduce competition.
• Analyze how niche overlap can lead to increased competition when resources are limited.+ Show more

Learning Objectives

• Understand how structural adaptations help organisms survive in different habitats.
• Identify examples of physical features that support survival, movement, and camouflage.
• Analyze how structure correlates with environmental needs and predation avoidance.+ Show more

Learning Objectives

• Explain how scientific claims are supported by evidence and reasoning.
• Select relevant data and communicate conclusions using appropriate graphs, diagrams, and models.
• Revise scientific communication based on peer feedback to improve clarity and credibility.

Learning Objectives

• Organize qualitative and quantitative observations into tables and graphs that communicate information clearly.
• Choose an appropriate graph type and correctly label axes, scales, units, and legends.
• Identify trends, outliers, and basic summary measures (mean and median) from represented data.+ Show more

Learning Objectives

• Explain how models can represent complex systems and help scientists make predictions.
• Identify assumptions, define model boundaries, and interpret what a model does and does not include.
• Compare model predictions with observable outcomes to refine models and reduce misunderstandings.+ Show more

Learning Objectives

• Use dichotomous and multi-access key ideas to select traits that separate organisms into clear categories
• Construct binary branches by choosing contrasting, observable characteristics
• Test and refine a key by checking for common errors such as life stage and sexual dimorphism mismatches+ Show more

Learning Objectives

• Define keystone species and explain why they can strongly influence an ecosystem even if they are not the most abundant.
• Describe how trophic control by predators and mutualisms with pollinators can cause cascading effects.
• Identify evidence that suggests an organism is a keystone species and predict impacts on biodiversity and habitat complexity.+ 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

• Identify primary and secondary control surfaces and describe what they do (roll, pitch, yaw).
• Explain how deflecting a control surface changes local lift and the resulting moment about an aircraft’s center of mass.
• Describe control authority and how trim and flap deployment affect stability and performance.+ Show more

Learning Objectives

• Differentiate static and dynamic stability and explain how they affect aircraft behavior after a disturbance.
• Describe how center of gravity (CG) position relative to the aerodynamic center influences longitudinal stability.
• Explain how dihedral angle affects roll stability and how fin and tailplane design contribute to directional and pitch stability.+ Show more

Learning Objectives

• Explain diurnal rising and setting as apparent motion caused by Earth’s rotation
• Describe how Earth’s orbit around the Sun leads to apparent changes in the Sun’s position over a year
• Use the celestial sphere and horizon concepts to interpret the apparent paths of visible stars

Learning Objectives

• Explain how solar and lunar eclipses happen due to alignment of the Earth, Moon, and Sun, including umbra and penumbra effects
• Describe why eclipses and tides occur at different frequencies and how visibility depends on geometry and location
• Explain tides using differential gravitational pull from the Moon and the Sun, including spring and neap tides and coastal amplification

Learning Objectives

• Distinguish between speed and velocity using direction and units
• Calculate and interpret average speed from distance and time
• Explain how changing speed and changing direction affect motion+ Show more

Learning Objectives

• Explain how the relative positions of the Sun, Earth, and Moon determine the sequence of lunar phases
• Describe how the Moon’s changing illumination geometry affects the visible fraction of the Moon from Earth
• Distinguish lunar phase appearance from eclipse circumstances using observational patterns

Learning Objectives

• Identify the main types of robotic missions (flyby, orbiter, lander, and sample-return) and what each is designed to do.
• Explain how distance and communication delay shape spacecraft design and mission timelines.
• Describe how planetary environments and engineering constraints affect instrumentation, propulsion choices, and data return.

Learning Objectives

• Describe how cells, tissues, organs, and body systems are organized from smaller to larger structures.
• Explain how the structure of an organ or system helps it perform a specific function.
• Predict how changes in one level of organization can affect overall body system performance.

Learning Objectives

• Identify major parts of a cell (cell membrane, cytoplasm, nucleus, and key organelles) and describe what each part does.
• Explain how cell structure supports life processes by organizing materials and controlling what enters and leaves.
• Use vocabulary from cell structure to answer questions accurately in multiple formats.

Learning Objectives

• Explain how competition happens when organisms need limited resources.
• Identify traits and timing that can affect which organisms get resources.
• Describe how competition can change population sizes and community composition over time.

Learning Objectives

• Explain how matter cycles through living and non-living parts of an ecosystem instead of being used up
• Use a cycles of matter model to describe reservoirs (air, soil, water, organisms) and flows (feeding, respiration, decomposition, runoff)
• Describe how carbon and water move among organisms and the environment

Learning Objectives

• Explain electric current as an organized movement of charges through a conductor
• Distinguish conventional current direction from electron flow in metals
• Describe potential difference as the driving force that makes current flow+ Show more

Learning Objectives

• Explain how the respiratory system exchanges gases using diffusion and gas concentration differences.
• Describe how the digestive system breaks food into smaller molecules that can enter the bloodstream.
• Connect coordinated respiration and digestion to energy release in cells and proper waste removal.

Learning Objectives

• Explain how erosion and deposition reshape Earth’s surface using the roles of water, wind, ice, and gravity.
• Describe how factors such as slope, rock resistance, vegetation, and water flow strength affect the rate and pattern of erosion.
• Differentiate the environments where erosion and deposition commonly form features such as river valleys, deltas, dunes, and coastal beaches.

Learning Objectives

• Identify Earth’s major systems (lithosphere, hydrosphere, atmosphere, biosphere) and describe how they interact
• Explain how energy from the Sun drives cycles that move water, gases, and heat
• Use cause-and-effect reasoning to predict how changes in one Earth system affect others over different timescales

Learning Objectives

• Explain how triboelectric effects transfer charge between materials when they touch and separate
• Use the triboelectric series to predict whether objects tend to gain or lose electrons
• Differentiate electrostatic discharge from steady electric current flow+ Show more

Learning Objectives

• Explain how electrical energy is transferred in a circuit and how that energy becomes thermal energy in resistive components.
• Define power as the rate of energy transfer and relate power to current and voltage using everyday examples.
• Describe how changing current or voltage changes power dissipation and heat generation in circuit elements.+ Show more

Learning Objectives

• Differentiate weather from climate using examples from temperature, precipitation, wind, and cloud cover.
• Explain why weather changes quickly while climate describes long-term patterns.
• Use observations from days and months to identify recurring patterns that define local climate.

Learning Objectives

• Differentiate between criteria and constraints in the design process
• Use criteria and constraints to interpret test evidence
• Apply criteria and constraints to propose or evaluate a solution

Learning Objectives

• Explain how a design problem starts with a clear need and measurable requirements.
• Identify common design inputs such as sketches, dimensions, performance goals, and constraints.
• Use criteria to choose and justify an effective solution in a design context.

Learning Objectives

• Identify key properties of series circuits, including a single path for current.
• Explain why current stays the same through series elements.
• Describe how total voltage divides across series components and how this affects bulb brightness.+ Show more

Learning Objectives

• Explain how prototype evaluation uses data, observations, and constraints to judge how well a system works.
• Identify appropriate evidence (measurements, failure observations, and comparisons to criteria) for evaluating a prototype.
• Apply criteria and constraints to propose improvements for a prototype redesign.

Learning Objectives

• Explain how evidence supports a scientific claim by describing what the evidence shows (patterns, ranges, or matches).
• Use scientific concepts to connect evidence to a cause-and-effect explanation.
• Compare competing explanations by evaluating which one is better supported by the available evidence.

Learning Objectives

• Describe how parallel circuits create multiple branching pathways for current
• Explain why the potential difference across parallel branches is equal
• Use current relationships to predict how overall current depends on branch currents+ Show more

Learning Objectives

• Explain how net force affects changes in speed and/or direction
• Distinguish between balanced forces and unbalanced forces using real-world examples
• Use key science terms (force, net force, balanced, unbalanced, friction, constant velocity)

Learning Objectives

• Explain how heat transfer changes energy in matter and can change temperature.
• Describe how energy changes lead to phase changes such as melting, evaporation, and boiling.
• Use particle ideas to connect energy with the arrangement and motion of matter.

Learning Objectives

• Identify safe lab behaviors and describe when personal protective equipment is needed during investigations.
• Use ethical reporting practices by recording accurate measurements, citing sources when appropriate, and explaining limitations.
• Match safety and reporting choices to real-world science classroom expectations.

Learning Objectives

• Identify and distinguish structural, behavioral, and physiological adaptations
• Explain how adaptations can improve survival and reproductive success in a niche
• Compare inherited traits with acquired characteristics and describe how selection can change populations over generations+ Show more

Learning Objectives

• Explain how observable characteristics are used to group organisms in science.
• Use a dichotomous key to identify organisms using step-by-step choices.
• Describe how hierarchical classification categories lead from kingdom to species.+ Show more

Learning Objectives

• Explain the difference between fundamental and realized niches using measurable environmental factors.
• Describe how abiotic factors and interspecific interactions influence resource use and habitat occupation.
• Use examples to explain niche partitioning in space and time among similar species.+ Show more

Learning Objectives

• Explain how angle of attack changes airflow patterns over an airfoil
• Describe how lift production relates to increasing angle of attack in both the linear and post-stall regimes
• Identify factors that shift the critical (stall) angle, including wing incidence, flap settings, and Reynolds number

Learning Objectives

• Explain how uneven heating of Earth creates rising and sinking air that drives global wind patterns
• Describe how warm air behavior differs from cool air behavior in atmospheric circulation
• Connect atmospheric circulation to moisture transport and the development of storms+ Show more

Learning Objectives

• Explain how climate differs from weather and why climate changes more slowly.
• Describe how climate factors such as latitude, altitude, distance from water, ocean currents, and prevailing winds affect regional patterns.
• Use climate ideas to interpret and compare real-world environments (deserts, grasslands, rain forests) and seasonal patterns.

Learning Objectives

• Explain how El Niño conditions change sea surface temperatures in the tropical Pacific and how those changes affect weather.
• Describe how shifts in winds and rainfall can influence temperature and precipitation patterns in distant regions.
• Identify evidence-based observations (precipitation and wind trends) that connect ocean changes to broader climate impacts.

Learning Objectives

• Identify and describe lift, drag, thrust, and weight and how each affects motion in flight.
• Explain weight as the force of gravity and connect thrust generation to propulsion systems.
• Use equilibrium ideas to describe steady level flight when forces balance.