Grade 6 Science Worksheets

Learning Objectives

• Describe the relative sizes, masses, and distances among the Sun, Earth, and Moon.
• Explain how gravitational interactions influence the orbital relationships of the Sun, Earth, and Moon.
• Understand the concept of the Earth's barycenter and the role of the Sun as a dominant gravitational influence.+ Show more

Learning Objectives

• Explain the process of recrystallization and how it purifies dissolved solids.
• Identify factors that influence crystal size and purity during recrystallization.
• Describe how solubility curves and temperature control assist in separating substances.+ Show more

Learning Objectives

• Understand Earth's rotation and its role in producing day and night.
• Explain how Earth's orbit and axial tilt create seasonal variations.
• Identify key moments like solstices and equinoxes as observational markers.+ Show more

Learning Objectives

• Understand the mechanisms of thermal energy transfer: conduction, convection, and radiation.
• Identify real-world examples of each energy transfer method, such as heat conduction through metals, convection currents in air, and radiant heat from sources like the Sun or lamps.
• Explain how energy transfer causes observable changes in temperature and material properties such as thermal conductivity.+ Show more

Learning Objectives

• Describe the gravitational relationships between the Sun, Earth, and Moon.
• Explain how the relative positions of celestial bodies cause phases, eclipses, and tides.
• Identify geometric configurations that lead to observable lunar and solar phenomena.+ Show more

Learning Objectives

• Differentiate between physical and chemical changes based on observable indicators.
• Identify examples of physical and chemical changes in everyday materials.
• Recognize the conservation of substances during physical changes and variations during chemical changes.+ Show more

Learning Objectives

• Explain how stratigraphic order supports relative dating of fossils
• Describe how fossil occurrences can show patterns of diversification and extinction over time
• Use evidence from fossil transitions and geographic distribution to support lineage continuity and turnover+ Show more

Learning Objectives

• Explain how species richness and species occurrence can be used to describe biodiversity patterns.
• Compare biodiversity patterns across space (islands, latitudes, and habitat types) and time (community turnover).
• Identify ecological and historical factors that influence endemism and species composition.+ Show more

Learning Objectives

• Explain how heritable differences can become more common in a population over generations.
• Describe how geographic separation and reproductive isolation can lead to speciation.
• Identify evidence for speciation using morphology, reproductive compatibility, and biogeographic patterns.+ Show more

Learning Objectives

• Identify patterns in observational and instrumental data related to natural hazards.
• Explain how recurrence intervals help estimate when hazards may occur again.
• Use hazard clues to estimate likely event locations and likely magnitudes for risk assessment.

Learning Objectives

• Calculate mass change from provided measurements
• Compare open and sealed trials to identify the mass pattern
• Decide whether matter entered or left the system using CER+ Show more

Learning Objectives

• Describe how electric attraction/repulsion depends on charge strength and separation distance.
• Explain how magnetic forces depend on magnet strength or current and separation distance.
• Use qualitative field representations to predict whether forces strengthen or weaken.+ Show more

Learning Objectives

• Explain how gravity depends on mass and distance using examples such as Earth and the Moon
• Compare gravitational attraction with contact forces like friction by describing how each changes motion
• Use evidence from quantitative patterns to support an argument about gravitational interactions+ Show more

Learning Objectives

• Explain how momentum is conserved for an isolated two-object system during a collision.
• Use mass and velocity to calculate total momentum before and after a collision.
• Identify action-reaction interaction forces that occur during contact.+ Show more

Learning Objectives

• Describe how water moves through the water cycle using key processes such as evaporation, condensation, precipitation, runoff, infiltration, and storage in groundwater.
• Explain how solar energy and gravity drive energy and movement in the water cycle.
• Trace water between reservoirs (ocean, ice, rivers, soil, and groundwater) using conceptual and graphical ideas.

Learning Objectives

• Explain how the relative positions of Earth, Moon, and Sun affect how much of the Moon’s surface appears lit.
• Order the primary lunar phases and describe what changes in the line of sight during the cycle.
• Identify the conditions for solar and lunar eclipses based on alignment and shadowing.+ Show more

Learning Objectives

• Explain how negative feedback helps maintain internal stability in the body.
• Identify the roles of sensors, control centers, and effectors in feedback control.
• Compare positive and negative feedback using blood glucose and body temperature examples.+ Show more

Learning Objectives

• Explain how Earth’s rotation causes day and night.
• Describe how Earth’s orbital motion plus its 23.5° axial tilt creates seasons.
• Use solstices and equinoxes to predict observable changes in sunlight and day length.+ Show more

Learning Objectives

• Explain how matter and energy move among the geosphere, hydrosphere, atmosphere, and biosphere.
• Describe feedback mechanisms that change Earth systems, such as ice-albedo effects.
• Use a model sequence to predict observable patterns from short-term to geologic timescales.

Learning Objectives

• Interpret symbols and patterns on a surface weather map to describe wind and precipitation changes
• Explain how pressure differences can produce wind shifts during frontal passage
• Use temperature and pressure trends to predict where precipitation is likely to occur+ Show more

Learning Objectives

• Explain how net force and mass affect an object's acceleration using vector addition
• Identify how changing one or more forces changes the direction and magnitude of motion
• Match common motion scenarios to definitions of net force and balanced forces+ Show more

Learning Objectives

• Explain how gravity provides the centripetal force that keeps planets and satellites in orbit.
• Describe how mutual gravity between a star and a planet can produce an elliptical orbit and changing orbital speed.
• Compare how mass and distance affect gravitational influence using Earth–Moon and Jupiter–satellite examples.

Learning Objectives

• Explain how uneven solar heating and Earth’s rotation drive large-scale atmospheric circulation.
• Describe how Hadley, Ferrel, and polar cells relate to trade winds, mid-latitude westerlies, and polar easterlies.
• Use ocean-current patterns and thermohaline circulation to predict regional differences in temperature and rainfall.+ Show more

Learning Objectives

• Explain how slow and rapid geologic processes modify Earth’s surface
• Use evidence from rock strata, fossils, and landforms to support landscape evolution ideas
• Compare how plate motion, uplift, erosion, and sediment transport shape landscapes over time

Learning Objectives

• Understand the geometric principles behind solar and lunar eclipses, including the concepts of umbra and penumbra.
• Explain how the alignment of the Earth, Moon, and Sun causes eclipse phenomena.
• Describe the gravitational forces of the Moon and Sun that cause oceanic tides, including spring and neap tides.+ Show more

Learning Objectives

• Understand how resource availability affects individual organisms and populations in different ecosystems.
• Interpret quantitative data related to resource distribution and population trends.
• Identify limiting resources such as water, soil nutrients, and light in marsh, desert, and forest environments.+ Show more

Learning Objectives

• Understand how shape modifications reduce aerodynamic resistance.
• Identify principles such as tapered tails, rounded noses, and surface smoothness used in streamlining.
• Connect shape design principles to real-world examples like aeronautics and farm equipment.+ Show more

Learning Objectives

• Understand and describe physical and chemical properties used to distinguish substances.
• Identify properties such as density, solubility, magnetism, electrical conductivity, hardness, and luster in various materials.
• Relate observed properties to real-world examples and applications in material classification and selection.+ Show more

Learning Objectives

• Understand the concept of multi-criteria decision-making in aerodynamic design.
• Learn how trade-offs between lift, drag, weight, and stability affect performance envelopes.
• Explore methods such as parameter tuning and Pareto trade-offs in structural optimization.+ Show more

Learning Objectives

• Understand the different types of physical and chemical properties used to identify substances.
• Learn how to describe properties such as density, solubility, magnetism, electrical conductivity, hardness, and luster.
• Relate observed properties to real-world examples like iron, salt, oil, and copper.+ Show more

Learning Objectives

• Identify questions that can be investigated using collected evidence
• Construct a testable question from an observation
• Identify changed, measured, and controlled factors in an investigation+ Show more

Learning Objectives

• Understand the iterative nature of scientific methods in testing hypotheses.
• Differentiate between descriptive and comparative scientific approaches.
• Learn how to define operational variables and select appropriate methodologies based on observable phenomena.+ Show more

Learning Objectives

• Identify monomers and describe how they form polymers through condensation reactions.
• Explain how hydrolysis breaks polymers into smaller molecules.
• Relate the structure of macromolecules to their functions, including roles in cells.

Learning Objectives

• Explain how cells communicate using chemical and electrical signals
• Describe how receptor binding leads to downstream cell responses through signal transduction
• Compare rapid nervous signaling with longer-term endocrine effects and feedback+ Show more

Learning Objectives

• Explain how DNA sequence differences can lead to phenotypic variation in a population.
• Describe how environmental factors can affect traits through development and gene expression.
• Use evidence-based examples to connect macromolecules and gene regulation to organism characteristics.+ Show more

Learning Objectives

• Analyze five real U.S. resource sites and underline evidence clues.
• Infer patterns causing uneven resource distribution across the sites.
• Build a labeled cause-and-effect model linking location to processes.+ Show more

Learning Objectives

• Explain how heart and blood vessels, lungs, and the digestive system work together to deliver oxygen and nutrients
• Describe how the nervous system coordinates body responses using signals that connect organs
• Connect cell functions (like breaking down nutrients or taking in oxygen) to system-level outcomes

Learning Objectives

• Understand how multi-criteria design involves balancing lift, drag, weight, stability, and manufacturability to optimize aircraft performance.
• Explain methods for parameter tuning and Pareto trade-off concepts in engineering design.
• Analyze how structural constraints influence wing aspect ratio and material choices.+ Show more

Learning Objectives

• Understand the hierarchical levels of biological organization from cells to organisms.
• Recognize how tissues, organs, and organ systems work together to maintain life.
• Explain how disruptions at one level can affect higher levels of organization.+ Show more

Learning Objectives

• Define and differentiate between mass and volume.
• Understand how density relates mass and volume to identify materials.
• Calculate the density of simple solids and liquids using sample data.+ Show more

Learning Objectives

• Understand how fossil occurrences and stratigraphy reveal patterns of biodiversity over time.
• Analyze morphological transitions in the fossil record, such as fish-to-tetrapod evolution.
• Explain the role of dating methods and geographic distribution in tracing lineage continuity.+ Show more

Learning Objectives

• Explain how adaptations can change over generations in populations.
• Describe how reproductive isolation can lead to speciation.
• Identify evidence that supports speciation using morphology, compatibility, and biogeography.+ Show more

Learning Objectives

• Interpret frequency tables and allele frequencies to describe how traits change in populations over generations
• Read and compare time-series graphs of population size to identify increasing, decreasing, and bottleneck patterns
• Use proportional reasoning to calculate how allele frequencies change and to predict outcomes for a simple scenario+ Show more

Learning Objectives

• Explain how fossil occurrences and stratigraphic order support ideas about evolution, diversification, and extinction.
• Identify how relative dating and radiometric dating help establish the age order of rock layers.
• Use fossil assemblage comparisons to infer changes in biodiversity and environments.

Learning Objectives

• Describe how species richness and species occurrence can show biodiversity patterns across space and time
• Compare island faunas, latitudinal gradients, and habitat heterogeneity as examples of biodiversity variation
• Explain how turnover and community composition can be assessed using historical records and present-day surveys+ Show more

Learning Objectives

• Explain how heritable variation and differential reproductive success can change trait frequencies over generations
• Identify examples of natural selection driven by environmental pressures
• Match key vocabulary terms to correct definitions related to natural selection+ Show more

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

• Explain how homologous structures and conserved DNA sequences support common ancestry.
• Use phylogenetic trees to describe divergence among related taxa over generations.
• Interpret vestigial organs and morphological gradients as clues about ancestral traits.