Grade 6 Science Worksheets

Learning Objectives

• Explain how birth rates, death rates, and resource availability can change a population over time.
• Interpret population data to infer whether a population is increasing or decreasing.
• Connect seasonal or habitat resource changes to real patterns in population counts.+ Show more

Learning Objectives

• Explain how atom conservation applies to chemical reactions as rearrangements of atoms.
• Use particle diagrams to show reactants and products and to check whether atoms are conserved.
• Predict and verify the identities of products based on which atoms are bonded together.

Learning Objectives

• Explain conservation of matter using particle-level reasoning and atom counting.
• Use particle diagrams to count atoms of each element on both sides of a chemical reaction.
• Connect conservation of atoms to the idea that chemical change rearranges atoms into new combinations.

Learning Objectives

• Explain mass conservation by connecting conservation of atoms to conservation of mass in a closed system.
• Use particle-level reasoning to justify why total mass of reactants equals total mass of products.
• Interpret everyday examples of conservation of mass and distinguish closed-system from open-system situations.

Learning Objectives

• Distinguish mixtures from compounds using particle models and ideas about atomic arrangement
• Explain how composition affects properties of substances (separation methods and uniformity)
• Use vocabulary such as mixture, compound, atom, and bonded particles correctly

Learning Objectives

• Explain how new substances can form when atoms rearrange during a chemical change.
• Identify how macroscopic properties (solubility, conductivity, melting behavior) can change after a reaction.
• Use comparisons of properties before and after a reaction to support the idea that a new substance formed.

Learning Objectives

• Explain how atoms rearrange during a chemical reaction and how this leads to new substances
• Identify which parts of a reaction description indicate particle rearrangement (not just mixing)
• Use atomic-level reasoning to predict how product properties relate to new combinations

Learning Objectives

• Explain how evaporation and transpiration release water vapor into the atmosphere.
• Describe how temperature and the availability of liquid water affect the amount of water vapor.
• Connect phase changes to the water cycle, including condensation and precipitation.

Learning Objectives

• Explain how precipitation can infiltrate and percolate to recharge groundwater aquifers.
• Describe how groundwater can supply streams as baseflow during dry periods.
• Identify how permeability and land geometry influence the connection between groundwater and surface water.

Learning Objectives

• Explain how rocks break down and form sediments through physical and chemical weathering.
• Describe how sediments move, deposit, and build up layers over time.
• Connect biological processes to the formation of soil and the cycling of water.

Learning Objectives

• Describe how Earth’s water is stored in major reservoirs (oceans, lakes, rivers, groundwater, glaciers, and the atmosphere).
• Explain how water transfers between reservoirs when it changes state (solid, liquid, gas) and through processes like precipitation and runoff.
• Use reservoir connections to predict how water availability can change over time.

Learning Objectives

• Explain the difference between structural and physiological adaptations.
• Describe how natural selection can favor traits that improve survival and reproduction.
• Connect specific organism features to the advantages they provide in a habitat.

Learning Objectives

• Explain how bones, joints, and muscles work together to support and move the body.
• Describe how muscles create movement by contracting and how joints control motion.
• Connect the musculoskeletal system to the nervous and circulatory systems for coordinated activity.

Learning Objectives

• Explain how sound waves carry energy and information in devices such as speakers and microphones
• Describe how light waves are captured and converted into electrical signals in cameras
• Use wave properties (frequency and intensity) to predict how changing signals affects device performance

Learning Objectives

• Differentiate physical changes from chemical changes using evidence from products and reversibility.
• Explain how bond changes and new substances relate to chemical changes.
• Use real-life examples (melting, dissolving, burning, rusting) to justify the type of change.

Learning Objectives

• Identify examples of physical properties of matter, including mass, volume, density, conductivity, melting point, and hardness.
• Explain how physical properties describe matter without changing its chemical identity.
• Distinguish physical changes from chemical changes using observable evidence related to physical properties.

Learning Objectives

• Explain how predation, herbivory, parasitism, competition, and mutualism affect organisms in an ecosystem.
• Use trophic interaction terms to describe how populations and community structure change over time.
• Analyze real-world examples (like pollination and predator-prey relationships) to predict outcomes.

Learning Objectives

• Define an ecosystem as an interacting system of biotic and abiotic components
• Identify examples of biotic and abiotic factors in different habitats (pond, prairie, forest)
• Explain how physical factors affect organisms and community composition over time and space

Learning Objectives

• Identify physical properties (such as density, solubility, magnetism, conductivity, hardness, and luster) and explain how they help distinguish substances.
• Use qualitative descriptions and simple quantitative comparisons to support material classification without phase-change processes.
• Relate observed property patterns to familiar examples such as iron, salt, oil, and copper.

Learning Objectives

• Write clear science claims that are supported by evidence and logical reasoning.
• Use standardized visual summaries (graphs, data tables) to communicate relationships and comparisons.
• Present methods and uncertainties transparently and cite observational records accurately.

Learning Objectives

• Determine how instrument resolution affects the precision of measurements and how to record an estimated digit
• Use consistent units and correct significant-figure reporting when recording scientific measurements
• Explain how repeated trials and averaging reduce random error and how calibration addresses systematic bias+ Show more

Learning Objectives

• Explain how the scientific method works as an iterative process that uses observations to form testable questions and refine hypotheses.
• Differentiate descriptive and comparative scientific approaches and choose when each approach fits best.
• Use measurable outcomes (operational definitions) to design experiments or comparisons that follow the logic of controlled testing.

Learning Objectives

• Identify independent, dependent, and controlled variables in a controlled experiment
• Use operational definitions to clearly explain how variables are measured or changed
• Recognize and reduce confounding variables by controlling conditions, using replication, and randomization

Learning Objectives

• Describe how the Sun’s apparent motion across the sky changes with season and latitude.
• Explain why sunrise and sunset locations shift even though the Sun appears to move.
• Relate solar elevation at noon to day length and solar intensity.

Learning Objectives

• Identify producers, consumers, and decomposers and describe their roles in a food web.
• Explain how energy flows through trophic levels using examples from a forest ecosystem.
• Describe how seasonal changes and disruptions (invasive species or pest outbreaks) can alter food webs.

Learning Objectives

• Explain the main stages of the water cycle and describe how water changes state during the cycle.
• Trace water pathways from the atmosphere to land and oceans using evaporation, condensation, precipitation, runoff, and infiltration.
• Use evidence from the water cycle to predict how changes can lead to wet/dry seasons or drought/flood conditions.

Learning Objectives

• Explain how particles behave differently in solids, liquids, and gases.
• Describe how the shape and volume of matter change (or do not change) for each state.
• Connect state changes to energy changes and particle motion.

Learning Objectives

• Analyze how fossil occurrences and stratigraphic sequences reveal patterns of origin, diversification, and extinction over geologic time.
• Explain how relative dating and radiometric dating help place fossils in a temporal sequence.
• Interpret how fossil morphology and geographic distribution support ideas about lineage continuity and turnover.

Learning Objectives

• Explain conservation of mass using the idea that atoms are neither created nor destroyed in a closed system.
• Use particle models and symbolic representations to show that atom counts stay constant even when molecules rearrange.
• Connect measured mass before and after physical or chemical changes to modeled atom conservation.

Learning Objectives

• Identify and distinguish mutualism, competition, predation, and parasitism as common species interactions.
• Explain how shared resources and behavioral strategies can change the strength of interactions.
• Use habitat context (forest, grassland, freshwater) and species traits to predict interaction outcomes.

Learning Objectives

• Explain how negative feedback helps organisms maintain internal stability around a set point
• Describe positive feedback and how it can amplify change in a process
• Identify sensors, control centers, and effectors in real physiological examples

Learning Objectives

• Analyze observational and instrumental data to identify patterns in natural hazards.
• Explain how recurrence intervals and frequency statistics relate to probable events.
• Use hazard information to estimate locations and magnitudes for basic risk assessment.

Learning Objectives

• Explain how geologic processes change Earth’s surface on different time scales (rapid vs slow).
• Use evidence such as rock strata, fossils, uplifted terraces, and erosion rates to construct explanations of landscape evolution.
• Distinguish how plate motions, volcanic uplift, mountain building, and sediment transport shape landforms.

Learning Objectives

• Explain how conservation of momentum applies to isolated two-object systems during collisions.
• Use Newton’s third law (action-reaction) to describe equal and opposite forces during contact.
• Distinguish elastic and inelastic collisions using changes in motion and momentum.+ Show more

Learning Objectives

• Describe how electric forces depend on charge magnitude and separation distance
• Describe how magnetic forces depend on magnet strength/current and separation distance
• Use qualitative field ideas and data patterns to explain when forces are stronger, weaker, balanced, or unbalanced

Learning Objectives

• Use astronomical units (AU) and planetary radii to compare Earth and other planets at an appropriate scale.
• Interpret tables and charts to explain relationships among distance, planet size, and orbital period.
• Use proportional models and log scales to represent large ranges in space size and time.

Learning Objectives

• Identify how observable characteristics are used to group organisms.
• Use a dichotomous key to classify organisms step-by-step.
• Explain hierarchical classification from kingdom to species and why species is the most specific category.+ Show more

Learning Objectives

• Identify producers, consumers, and decomposers in food webs and explain their roles in energy flow.
• Describe how energy decreases across trophic levels and why longer food chains usually support fewer top predators.
• Explain how species removal or overgrowth can change populations throughout an interconnected community.+ Show more

Learning Objectives

• Explain how invasive species are introduced and why they can become established in new ecosystems.
• Describe how invasive species affect native species through competition, predation, and habitat alteration.
• Use terms such as propagule pressure and lack of natural predators to predict invasion success.+ Show more

Learning Objectives

• Explain how primary control surfaces (ailerons, elevators, rudder) control roll, pitch, and yaw.
• Describe how secondary surfaces (flaps and trim) change lift, drag, and handling through deflection and trim settings.
• Understand control authority and why hinge moments and surface sizing affect responsiveness and energy cost.

Learning Objectives

• Explain how roll, pitch, and yaw control inputs can affect each other through aerodynamic interactions
• Identify examples of adverse yaw and elevator–aileron coupling and describe the causes
• Describe engineering and piloting techniques (e.g., differential and Frise ailerons, trim systems, control mixers) used to reduce unwanted coupled responses+ Show more

Learning Objectives

• Describe the iterative design process used to improve an aircraft or glider concept.
• Identify how performance specifications and trade-offs affect lift, drag, weight, and stability.
• Interpret the meaning of measured lift and drag coefficients from tests or simulations.+ Show more

Learning Objectives

• Explain how angle of attack changes airflow patterns around an airfoil
• Describe how lift and stall onset depend on increasing angle of attack
• Connect wing incidence and control inputs to effective angle of attack during flight

Learning Objectives

• Explain how propellers and jet engines produce thrust to overcome drag
• Compare propulsive efficiency at different speeds for propeller-driven vs jet-driven systems
• Describe how thrust-to-weight ratio affects acceleration and climb+ Show more

Learning Objectives

• Explain how Earth’s rotation causes the apparent daily motion of the Sun and stars from an Earth-based perspective.
• Describe how Earth’s orbital motion and the tilt of Earth help explain the apparent annual change in the Sun’s position.
• Use vocabulary such as horizon, celestial sphere, rising, setting, and diurnal to interpret predictable sky patterns.+ Show more

Learning Objectives

• Explain how solar and lunar eclipses happen due to alignment within the Earth–Moon–Sun system.
• Distinguish umbra and penumbra and relate them to what people can see during an eclipse.
• Describe how spring and neap tides result from the changing gravitational alignment of the Moon and Sun.+ Show more

Learning Objectives

• Explain how mixed (series-parallel) circuits can be decomposed into simpler series and parallel subcircuits.
• Predict how current and voltage distribute in series blocks and parallel branches within a combined circuit.
• Diagnose how component failure or removal affects brightness and meter readings in different parts of a mixed circuit.

Learning Objectives

• Explain the four aerodynamic forces (lift, drag, thrust, and weight) and how they act on an object in motion through air.
• Use ideas of vector direction and magnitude to predict how forces affect climb, level cruise, and descent.
• Identify equilibrium conditions for steady, level flight by comparing lift and weight and thrust and drag.