Grade 6 Science Worksheets

Learning Objectives

• Match material properties to the demands of a design solution, such as strength, water resistance, and conductivity.
• Compare multiple material options by considering performance and practical limits like cost, availability, and shaping.
• Explain how filtration design choices (membrane thickness, pore size, and durability) affect contaminant removal over time.

Learning Objectives

• Explain how data and constraints are used to evaluate a prototype as a working system.
• Use evidence such as measurements and failure observations to compare results to evaluation criteria.
• Describe how testing (e.g., bending or breaking) shows where forces travel through model parts.

Learning Objectives

• Explain how system thinking connects solution parts through inputs, outputs, and pathways.
• Use cause-and-effect reasoning to predict how changes in one component affect overall results.
• Describe how system failures can happen even when one part seems to work well.

Learning Objectives

• Explain how design improvements can create trade-offs between competing needs and constraints
• Connect physical properties (strength, insulation, friction, flexibility) to user needs and real-world limitations
• Make and justify trade-off decisions using evidence from a design scenario

Learning Objectives

• Explain how scientific claims are supported by evidence described as trends, ranges, or matches between expected and observed values.
• Connect evidence to established scientific ideas to form a logical evidence explanation.
• Compare competing explanations by judging which one best fits the evidence.

Learning Objectives

• Explain how tables, bar graphs, and line graphs help organize and interpret numerical and categorical data
• Identify important features of graphs, such as consistent labels, units, and axes, for accurate reading
• Classify observations as numerical or categorical and choose an appropriate representation

Learning Objectives

• Explain how scientific models use assumptions and evidence to make predictions.
• Identify what a model cannot explain and why that creates limitations.
• Use mismatches between predictions and observations to improve an explanation.

Learning Objectives

• Describe patterns on graphs using quantitative language (increasing, decreasing, plateau, scatter, and curved change).
• Explain what a graph pattern suggests about relationships between variables.
• Use a simple model or description to compare patterns across different conditions.

Learning Objectives

• Communicate science results using clear data presentation and accurate measurements.
• Describe and follow safety practices when using materials, including PPE, heat sources, and proper disposal.
• Report ethically by being honest about limitations and giving proper credit when using sources.

Learning Objectives

• Identify what measurable evidence can answer a scientific question.
• Distinguish between variables to change, controlled conditions, and observations to keep consistent.
• Evaluate whether a question is testable based on measurable outcomes and planned measurements.

Learning Objectives

• Identify the independent variable, dependent variable, and appropriate controls in an experiment.
• Explain how keeping constants consistent improves the reliability of evidence.
• Predict how changing one variable while controlling others affects results.

Learning Objectives

• Explain how evaporation separates a soluble solid from a liquid using state change.
• Identify evidence of evaporation-based separation (loss of liquid, recovery of dissolved particles).
• Distinguish evaporation from separations based only on particle size.

Learning Objectives

• Explain how filtration separates mixtures using differences in particle size and permeability.
• Describe how the solid residue and the liquid that passes through relate to observable evidence (such as sediment thickness and liquid clarity).
• Predict what will remain on a filter and what will flow through for a water–sand mixture.

Learning Objectives

• Explain how balanced and unbalanced forces affect an object’s motion
• Use the idea of net force to predict changes in speed or direction
• Give real-world examples of forces that balance or change motion

Learning Objectives

• Explain how density links mass and volume to predict whether an object will float or sink
• Use density evidence to compare substances and interpret layers in mixtures
• Make claims supported by measurements or estimates of density

Learning Objectives

• Explain how the atmosphere, hydrosphere, geosphere, and biosphere interact through matter and energy flow
• Identify processes (heating, cooling, evaporation, condensation, erosion, deposition) that change Earth systems over time
• Describe how changes in one Earth sphere can affect conditions in other spheres

Learning Objectives

• Explain how El Niño and La Niña relate to changes in sea surface temperatures in the tropical Pacific Ocean.
• Describe how ocean-atmosphere changes can influence evaporation, cloud formation, and wind circulation.
• Predict how precipitation and temperature patterns may shift in some regions during El Niño or La Niña.+ Show more

Learning Objectives

• Explain how the angle of incoming solar energy affects heating on Earth
• Describe how unequal heating drives air movement and influences weather
• Connect energy transfers in the atmosphere and oceans to seasonal climate patterns

Learning Objectives

• Explain how ocean currents move water and distribute heat around Earth.
• Describe how wind patterns and Earth’s rotation help drive surface currents.
• Connect ocean currents to regional climate and weather differences near coasts.

Learning Objectives

• Explain how oceans absorb, store, and release heat more slowly than land to moderate temperatures.
• Describe how ocean heat affects evaporation, atmospheric humidity, and storm or weather patterns.
• Use evidence from ocean conditions to predict how coastal climates may respond to climate shifts.

Learning Objectives

• Describe the major pathways of the water cycle, including evaporation, condensation, precipitation, runoff, and infiltration
• Explain how energy transfer affects water’s state changes and movement between land and the atmosphere
• Use evidence from the water cycle to predict how changes can lead to droughts or flooding

Learning Objectives

• Explain how density relates mass and volume
• Identify how density helps predict whether objects float or sink
• Use comparisons of density to describe materials and their properties

Learning Objectives

• Identify major weather elements (temperature, precipitation, wind speed/direction, cloud cover, humidity) and explain what each one describes.
• Use observations of multiple weather elements to describe current weather conditions and understand why forecasts can change.
• Interpret simple statements about weather elements using evidence from observations and basic cause-and-effect relationships.

Learning Objectives

• Explain how balanced forces result in a net force of zero and can maintain motion at constant speed or rest
• Describe how unbalanced forces create a net force that changes an object’s speed and/or direction
• Determine the direction of the net force from a force diagram or word description of forces

Learning Objectives

• Explain how energy can change forms (potential, kinetic, thermal, electrical, and light) while total energy is conserved.
• Identify observable evidence of energy transformations such as motion, temperature change, and brightness.
• Use cause-and-effect reasoning to describe how one energy form transfers to another in real-world situations.

Learning Objectives

• Explain how friction affects the motion of objects on different surfaces
• Describe how friction can convert kinetic energy into thermal energy
• Compare friction on solid surfaces with air resistance (drag) in fluids

Learning Objectives

• Explain the difference between heat and temperature using particle motion and energy transfer.
• Use everyday examples (hot water, warm air, cooling objects) to predict how energy moves.
• Interpret warming and cooling patterns by reasoning about temperature differences.+ Show more

Learning Objectives

• Explain why mixtures can often be separated again without forming new substances.
• Identify physical separation methods (filtration, distillation, magnetism, crystallization) based on component properties.
• Differentiate between heterogeneous mixtures, homogeneous mixtures, and solutions using particle-level reasoning.

Learning Objectives

• Compare solids, liquids, and gases based on shape and volume.
• Explain how particle motion differs in solids, liquids, and gases.
• Connect changes in state to energy changes and particle behavior.

Learning Objectives

• Differentiate between physical changes and chemical changes in matter
• Identify evidence that suggests a chemical change has occurred
• Use observations to justify whether a change is physical or chemical+ Show more

Learning Objectives

• Differentiate speed from velocity and explain how direction affects velocity.
• Calculate or interpret average speed using total distance and elapsed time.
• Explain how changing speed affects motion and how measurements and units support clear communication.

Learning Objectives

• Explain how thermal energy is transferred through conduction, convection, and radiation
• Identify the medium involved in each type of thermal energy transfer
• Use evidence from everyday situations to determine which mechanism is occurring

Learning Objectives

• Explain how behavioral adaptations help organisms survive in changing environments
• Identify examples of behavioral adaptations such as migration, hibernation, and daily timing
• Describe how behavior works together with structural and physiological traits

Learning Objectives

• Explain how carbon moves through living systems using photosynthesis, respiration, feeding, and decomposition.
• Identify the roles of producers, consumers, and decomposers in the carbon cycle.
• Describe how carbon can be stored in organic matter and soil and later used again.+ Show more

Learning Objectives

• Explain how decomposers break down dead organisms and waste into simpler materials.
• Describe how decomposition returns nutrients to the environment for producers to use again.
• Connect decomposition to matter cycling and ecosystem stability over time.+ Show more

Learning Objectives

• Identify abiotic factors and explain how they affect where organisms can live.
• Distinguish biotic factors (producers, consumers, decomposers) by their roles in an ecosystem.
• Use ecosystem component vocabulary to describe how ecosystem structure can vary by location.

Learning Objectives

• Identify the roles of producers and consumers in a food chain
• Explain how energy transfers between trophic levels
• Describe why real ecosystems often form food webs instead of single pathways+ Show more

Learning Objectives

• Explain what a food web is and how it shows feeding relationships in an ecosystem
• Use food web ideas to describe how energy moves between trophic levels
• Predict effects of changes to one organism on other organisms in a community

Learning Objectives

• Explain why energy transfer between trophic levels is inefficient
• Describe how heat loss affects the amount of energy available to organisms at higher levels
• Predict how removing a species or food source can impact populations across a food web+ Show more

Learning Objectives

• Explain how inherited adaptations help organisms survive and reproduce in specific environments.
• Identify examples of adaptations related to feeding, protection, and tolerance to temperature or moisture.
• Distinguish inherited adaptations from individual behaviors or short-term responses.+ Show more

Learning Objectives

• Explain how predators and prey are interdependent in an ecosystem
• Describe how competition and mutualism affect population changes
• Predict how changes in one population can ripple through a community

Learning Objectives

• Explain what a niche is and how it describes an organism’s role in an ecosystem.
• Identify how different niches can allow two species to coexist in the same habitat.
• Analyze how niche overlap can increase competition when resources become limited.+ Show more

Learning Objectives

• Explain how physiological adaptations help organisms survive in specific environments
• Identify examples of internal traits related to water balance, metabolism, and ion regulation
• Interpret statements about physiological adaptations as true or false+ Show more

Learning Objectives

• Explain how structural traits help organisms obtain food, move efficiently, and avoid predation
• Identify examples of structural adaptations (e.g., shells, webbed feet, long roots, camouflage) and match them to functions
• Use evidence from observations to describe how traits relate to specific habitats

Learning Objectives

• Explain how environmental conditions affect which traits help organisms survive and reproduce.
• Describe how changes in survival and reproduction can shift traits in a population over generations.
• Connect adaptation to ecosystem change and resilience when resources or conditions shift.

Learning Objectives

• Explain how producers, consumers, and decomposers relate to trophic levels and energy flow
• Identify the correct trophic level for different organisms based on what they eat
• Describe how energy transfer between trophic levels affects ecosystem structure and populations+ Show more

Learning Objectives

• Explain how scientific knowledge changes when new evidence becomes available.
• Differentiate scientific theories from scientific laws using examples.
• Describe how peer evaluation and reproducibility strengthen scientific claims.

Learning Objectives

• Explain how scientific claims should be supported by relevant evidence
• Distinguish correlation from causation in data-based reasoning
• Use units, measurements, and observations consistently to strengthen explanations+ Show more