Grade 6 Science Worksheets

Learning Objectives

• Understand how ocean currents are driven by wind patterns and Earth's rotation.
• Explain how ocean currents influence regional climates and weather patterns.
• Identify the effects of warm and cold currents on coastal environments.+ Show more

Learning Objectives

• Identify observable traits and use them to classify organisms at familiar habitats
• Explain how a hierarchy of categories (kingdom to species) helps scientists group living things
• Use a dichotomous key to classify an organism by choosing between paired traits

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

• Describe the different states of matter: solids, liquids, and gases.
• Explain how particles behave in each state of matter.
• Identify changes in state and relate them to energy and particle motion.+ Show more

Learning Objectives

• Understand the three main mechanisms of thermal energy transfer: conduction, convection, and radiation.
• Identify examples of each energy transfer mechanism in real-world situations.
• Explain how the medium involved affects the process of thermal energy transfer.

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 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 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 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

• Explain how propellers create axial thrust by accelerating air backward.
• Describe how jet engines produce thrust using reaction momentum from exhaust gases.
• Compare how thrust-to-weight ratio affects climb and acceleration in flight.

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

• Understand the process of photosynthesis and how it converts light energy into chemical energy.
• Identify the key components involved in photosynthesis, including inputs and outputs.
• Explain the significance of photosynthesis for energy flow in ecosystems.+ Show more

Learning Objectives

• Understand the concept of trophic levels and their role in ecosystems.
• Identify producers, consumers, and decomposers within a food chain.
• Explain how energy flows through different trophic levels.+ Show more

Learning Objectives

• Understand the concept of a food web and how it differs from a food chain.
• Identify different organisms involved in various food webs and their roles.
• Explain how energy and matter are transferred in a community through food webs.+ Show more

Learning Objectives

• Explain how iterative improvement uses test results (evaluation) to guide redesigns.
• Identify how function and constraints can both change during iterative improvement while honoring safety limits.
• Describe the role of trade-offs when refining a prototype based on evidence.

Learning Objectives

• Understand how models are used to represent complex systems in science.
• Identify different types of scientific models and their purposes.
• Evaluate the limitations of models by comparing them with real measurements.+ Show more

Learning Objectives

• Understand the concept of a food web and its interconnected feeding relationships.
• Identify how changes in one species can affect the entire ecosystem.
• Recognize the importance of biodiversity and connectivity in ecosystem stability.+ Show more

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

• 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 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

• 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 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

• 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

• 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

• 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

• 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 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

• 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

• 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 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

• 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

• Explain how photosynthesis and cellular respiration transform energy and exchange gases in cells.
• Describe how diffusion moves materials across cell membranes using concentration gradients.
• Compare diffusion with transport mechanisms and explain why both are needed for cell survival.

Learning Objectives

• Explain cause-and-effect relationships between predator and prey population changes in an ecosystem.
• Use evidence to describe how prey behaviors or traits can reduce predation success.
• Interpret food web interactions using appropriate scientific vocabulary such as predator, prey, and population density.

Learning Objectives

• Match material properties (strength, water resistance, conductivity, porosity, durability) to real-world performance needs.
• Compare design options by considering trade-offs such as cost, availability, and ease of shaping.
• Explain how water filter design choices (membrane thickness and pore size) affect contaminant reduction over time.

Learning Objectives

• Explain what a trade-off decision means in a design problem.
• Identify how a design choice can improve one property while limiting another property.
• Connect material and physical properties (strength, insulation, friction, flexibility) to user needs and real-world constraints.+ 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

• 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

• 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.

Learning Objectives

• Explain how free electrons in metals help electrical charge flow
• Describe how material composition and temperature affect conductivity
• Predict how cross-sectional area influences current and resistance in circuits+ Show more

Learning Objectives

• Explain how environmental conditions affect which traits help organisms survive and reproduce.
• Describe how natural selection can change trait frequencies in a population over generations.
• Connect adaptation to changes in which organisms are present in an ecosystem over time.