Grade 6 Science Worksheets

Learning Objectives

• Model how total mass is conserved in physical and chemical changes by tracking atoms and particle counts in a closed system
• Use mass measurements before and after a process to support claims about conservation of matter
• Explain why atoms can rearrange while the total number of atoms of each element stays the same

Learning Objectives

• Use a particle model to explain how particle motion and spacing relate to phases of matter.
• Describe how collisions and particle kinetic energy change when temperature changes.
• Predict qualitative changes in pressure and volume in gases using the particle model.

Learning Objectives

• Identify indicators of chemical reactions from qualitative observations such as color change, gas production, and precipitate formation.
• Use quantitative data (mass and temperature changes) to determine whether new substances were formed.
• Interpret pre-reaction and post-reaction measurements to decide if a reaction produced new chemical species.

Learning Objectives

• Compare conservation strategies and habitat restoration approaches for maintaining biodiversity over time.
• Evaluate how protected area design and invasive species management affect ecosystem services.
• Explain ecological trade-offs and consider feasibility and economic constraints when choosing solutions.

Learning Objectives

• Explain how changes in ecosystem components can lead to population increases or declines
• Use empirical evidence such as birth/death rates, age structure, and population growth curves to support causal claims
• Describe how predator, invasive species, habitat fragmentation, and disease outbreaks can trigger trophic cascades+ Show more

Learning Objectives

• Explain how natural resources can be processed into synthetic materials
• Compare properties of materials and connect those properties to their uses
• Describe how durability, flexibility, conductivity, and biodegradability relate to material selection+ Show more

Learning Objectives

• Explain how photosynthesis and cellular respiration contribute to energy flow in food webs.
• Describe how energy decreases at each trophic level using an energy pyramid.
• Identify producers, consumers, and decomposers and explain their roles in matter cycling.+ Show more

Learning Objectives

• Explain how limited resources affect population size over time
• Interpret quantitative data (counts and measurements) to identify limiting resources
• Describe how carrying capacity relates to population fluctuations+ Show more

Learning Objectives

• Explain how limited resources affect population size over time
• Interpret quantitative observations and identify patterns related to carrying capacity
• Use resource gradients to predict species distribution in different environments

Learning Objectives

• Interpret data about resource availability and explain how it affects population size
• Describe how limiting resources influence carrying capacity and population fluctuations over time
• Use measurements from different habitats to predict where species are most likely to be abundant

Learning Objectives

• Identify and describe mutualism, competition, predation, and parasitism as recurring interaction types.
• Use comparative observations to predict how species interactions can differ across forest, grassland, and freshwater communities.
• Explain how niche partitioning, resource overlap, and behavioral strategies can change interaction strength.+ Show more

Learning Objectives

• Identify cells as the basic unit of life using observations from microscopy and preserved specimens
• Compare single-celled and multicellular organisms based on visible cell structures and organization
• Describe how cells relate to tissues, organs, and whole organisms using empirical evidence+ Show more

Learning Objectives

• Identify major cell structures and explain what each organelle does in the cell.
• Connect structure of an organelle to its function, including genetic control, energy processing, and protein assembly.
• Compare plant and animal cell features to determine how organelles support different cell functions.

Learning Objectives

• Explain how light energy is converted into chemical energy during photosynthesis in chloroplasts
• Describe how organisms release usable energy by breaking down organic molecules during respiration in mitochondria
• Connect matter cycling with conservation of mass across photosynthesis and respiration+ Show more

Learning Objectives

• Explain how the heart’s rhythmic pumping creates pressure that moves blood through vessels.
• Compare arteries, veins, and capillaries by describing their structure and function.
• Describe how capillary walls support the exchange of oxygen, nutrients, and wastes with body cells.+ Show more

Learning Objectives

• Explain the principles of propeller-driven thrust and how it overcomes drag.
• Describe how reaction engines produce thrust through exhaust momentum.
• Compare propeller and jet propulsion methods in terms of efficiency, mass distribution, and noise.+ Show more

Learning Objectives

• Explain geologic processes that modify Earth's surface over different time scales.
• Identify evidence such as rock strata, fossils, and landforms that demonstrate landscape evolution.
• Distinguish between rapid and slow surface change events, understanding their observable indicators.

Learning Objectives

• Understand the relationship between net force, mass, and acceleration
• Identify real-world examples of forces in motion
• Explain how changing forces affects movement of objects+ Show more

Learning Objectives

• Explain how conduction transfers heat through direct contact
• Describe how convection transfers heat through moving fluids
• Identify how radiation transfers heat using electromagnetic waves+ Show more

Learning Objectives

• Identify the independent variable and the dependent variable in a fair test scenario.
• Explain why controls are needed to make evidence reliable.
• Match examples of variables to their roles in an investigation.+ Show more

Learning Objectives

• Explain how stream or wind energy affects the size of particles that can be transported.
• Describe how settling and deposition cause sediment sorting by grain size.
• Identify the relationships among faster flow, slower flow, and layered sediment structures.

Learning Objectives

• Describe how filtration separates a mixture using particle size and whether particles can pass through a barrier
• Identify what happens to the solid residue and what happens to the liquid that flows through the filter
• Use evidence such as sediment thickness and liquid clarity to explain filtration results+ Show more

Learning Objectives

• Explain how evidence supports a scientific claim by linking observations to an accepted concept or mechanism.
• Describe evidence using trends, ranges, and comparisons between expected and observed values.
• Compare competing explanations by deciding which one is better supported by the evidence.

Learning Objectives

• Describe how evaporation, precipitation, runoff, and groundwater recharge move water through the water cycle
• Explain how water cycle processes affect usable freshwater availability over time
• Identify ways land cover and temperature influence infiltration and streamflow+ Show more

Learning Objectives

• Identify common graph patterns such as increasing, decreasing, plateau, and curved change.
• Describe relationships in graphs using quantitative language (e.g., rate-like comparisons).
• Use data from a graph to make predictions and compare patterns across situations.+ Show more

Learning Objectives

• Explain how organisms compete for limited resources in a community.
• Describe how traits and timing can affect which species survives and persists.
• Use examples to predict how population sizes may change over generations due to competition.+ Show more

Learning Objectives

• Describe how evaluation results guide iterative improvement in a design process.
• Identify how changes can target causes found during testing while maintaining constraints.
• Explain the trade-off idea: improving one property may affect other properties.+ Show more

Learning Objectives

• Explain how measurable evidence helps answer a scientific question.
• Identify the variables that change and the variables that stay the same in an investigation plan.
• Use evidence-based reasoning to choose and evaluate testable questions.

Learning Objectives

• Describe how cells, tissues, organs, and body systems work together to support life functions
• Identify the level of organization that matches a given body structure or function
• Explain how changes in one structure can affect how well an organ system maintains balance

Learning Objectives

• Match material properties to a design need such as strength, water resistance, or heat transfer.
• Explain how filtration design factors like membrane thickness and pore size affect contaminant reduction over time.
• Compare material choices using practical limits such as cost, availability, and ease of shaping.

Learning Objectives

• Identify whether data are numerical or categorical and choose an appropriate representation.
• Read information from tables, bar graphs, and line graphs using consistent labels and scales.
• Compare categories and describe how a variable changes over time based on a graph.+ Show more

Learning Objectives

• Identify a design need and measurable requirements in a design scenario
• Describe how sketches, dimensions, and constraints help generate and improve solution ideas
• Use criteria to evaluate which solution best reduces damage while meeting limits

Learning Objectives

• Explain how density compares mass and volume to predict whether objects float or sink in water.
• Use measured or estimated density to support claims about which substance is present in a mixture.
• Match key density vocabulary (mass, volume, density, float, sink) with correct definitions.+ Show more

Learning Objectives

• Explain how photosynthesis and cellular respiration transform energy in cells
• Describe how diffusion moves materials across cell membranes
• Compare passive and active transport using concentration gradients+ Show more

Learning Objectives

• Identify safe practices for handling materials and heat sources during science investigations.
• Explain how to present data clearly, including using measurements accurately.
• Describe ethical expectations for reporting results, including limitations and source attribution.

Learning Objectives

• Explain how prototype evaluation uses evidence, criteria, and constraints to judge performance.
• Identify what kinds of data (measurements and observations) help reveal how a system works.
• Apply evaluation criteria to decide whether a design improvement is acceptable within limits.

Learning Objectives

• Identify major parts of a cell and describe their basic functions.
• Explain how the cell membrane controls what enters and leaves the cell.
• Use evidence from a passage to fill in missing cell-structure terms.+ Show more

Learning Objectives

• Describe how erosion and deposition reshape Earth’s surface using water, wind, ice, and gravity.
• Explain how losing energy during deposition leads to sediment settling.
• Identify features formed by repeated erosion and deposition, such as river valleys and deltas.+ Show more

Learning Objectives

• Identify how the lithosphere, hydrosphere, atmosphere, and biosphere interact as one Earth system
• Explain how energy from the Sun drives cycles involving water, gases, and heat
• Use cause-and-effect relationships to describe how change in one system affects others+ Show more

Learning Objectives

• Explain how evaporation can separate a soluble solid from a liquid based on state change
• Identify evidence that separation by evaporation worked, such as the disappearance of liquid and recovered mass
• Compare evaporation with size-based separation methods

Learning Objectives

• Explain how decomposers break down dead organisms and waste
• Describe how nutrients return to soil and water for producers to use
• Model how changes in decomposer activity can affect ecosystem productivity+ Show more

Learning Objectives

• Explain how weather and climate differ in time scale and how they are measured.
• Identify variables used to describe weather and climate, such as temperature and precipitation.
• Use observational data to describe patterns that define local climate.

Learning Objectives

• Explain how predator and prey populations affect each other over time
• Identify predator-prey dynamics such as prey decline after predator increase and prey recovery after predator decline
• Use evidence from a passage to complete scientific statements about ecosystems

Learning Objectives

• Explain how matter is recycled between living organisms and non-living parts of an ecosystem.
• Identify reservoirs and flows in a matter cycle model.
• Describe how producers, consumers, and decomposers help move matter through an ecosystem.

Learning Objectives

• Explain how tectonic, atmospheric, and hydrologic processes can produce different natural hazards.
• Analyze how evidence such as historical records, seismic/satellite data, and hazard maps helps estimate hazard intensity and impact.
• Evaluate cause-and-effect relationships to predict how and where hazards may affect communities and infrastructure.

Learning Objectives

• Explain how aileron, elevator, and rudder inputs can interact through aerodynamic forces (control coupling).
• Describe adverse yaw and why it can occur during roll maneuvers.
• Connect mass distribution and inertia to how aircraft respond to control inputs.+ Show more

Learning Objectives

• Explain how dichotomous and multi-access keys help identify organisms using contrasting traits.
• Construct binary decision points in a key and choose observable features that separate taxa.
• Test and refine a field key by checking accuracy across different developmental stages and sexes.

Learning Objectives

• Explain how energy from the Sun and gravity drive Earth system processes.
• Describe how heating affects water state changes, evaporation, and cloud formation.
• Model how gravity influences the movement and accumulation of sediments on slopes.+ Show more