Grade 6 Science Worksheets

Learning Objectives

• Explain how bones, joints, and muscles work together to support the body and produce movement
• Identify how muscles use contraction and how joints control motion
• Describe how the nervous system and circulatory system support musculoskeletal function

Learning Objectives

• Explain how decomposers break down dead organisms and waste
• Describe how nutrients return to soil and water and become available to producers
• Analyze how decomposer activity affects ecosystem structure and plant growth

Learning Objectives

• Explain how gravity can cause rock and soil to move downhill during mass wasting.
• Identify triggers of mass wasting, including heavy rainfall, freeze-thaw cycles, earthquakes, and erosion.
• Describe how slope stability can change when support is removed or when water/ice weakens material.+ Show more

Learning Objectives

• Explain how the water cycle transfers water among the atmosphere, land, and oceans.
• Describe how evaporation, precipitation, infiltration, runoff, and groundwater recharge affect freshwater availability.
• Analyze how storage in glaciers and aquifers influences where and when usable water collects.+ Show more

Learning Objectives

• Define an organ and describe how organs are made of multiple tissue types working together.
• Explain how tissue interactions inside an organ help it perform a specific function.
• Use organ structure and function examples (heart, stomach) to describe how specialized cells produce outputs needed for survival.+ Show more

Learning Objectives

• Explain what makes a scientific question testable by linking it to measurable evidence.
• Identify independent and dependent variables and describe which conditions must stay constant.
• Revise a question so it includes clear measurable outcomes and observable criteria.

Learning Objectives

• Explain how internal physiological processes help organisms survive environmental extremes
• Describe examples of physiological adaptations involving heat exchange, kidney function, and metabolic rate changes
• Identify how hormones support temperature, hydration, and energy balance

Learning Objectives

• Explain how Earth’s rotation causes day and night as a repeating cycle.
• Describe how Earth’s orbit and tilted axis create predictable seasonal changes.
• Predict how Moon phases repeat based on the Moon’s orbit around Earth.+ Show more

Learning Objectives

• Explain how resistors convert electrical energy into thermal energy using power relationships.
• Describe how internal resistance in a source reduces terminal voltage under load.
• Use circuit power and voltage ideas to predict heating and changes in battery life.+ Show more

Learning Objectives

• Explain how feedback mechanisms help the body maintain homeostasis through coordinated system responses
• Identify examples of system integration, such as temperature regulation and blood glucose control
• Use evidence from a passage to determine main ideas and predict how changes affect internal conditions

Learning Objectives

• Identify the basic components of a simple electrical circuit (source, conductors, load, and control elements).
• Describe what each circuit component does and how it helps electrical energy flow.
• Explain energy transformations in a simple circuit using correct component roles and vocabulary.

Learning Objectives

• Explain how wavelength and frequency relate to the energy of light.
• Describe how light can behave as both waves and particles (photons).
• Use wavelength to predict which parts of the electromagnetic spectrum are visible and which are not.+ Show more

Learning Objectives

• Identify common forms of energy (kinetic, potential, thermal, chemical, electrical) in real-world situations
• Explain how energy transforms when one form changes into another in natural and engineered systems
• Use energy vocabulary to describe what energy is stored, what energy is moving, and what energy results

Learning Objectives

• Explain how iterative improvement uses test results to refine both function and constraints.
• Identify how trade-offs must be considered when revising a design after failures.
• Use evidence from evaluation criteria to decide what to change next in a prototype.

Learning Objectives

• Explain how reflection changes the direction of light using the angle of incidence and angle of reflection
• Describe how refraction bends light when it travels between materials with different refractive indices
• Use refractive index and lens ideas to predict how images form in everyday optical situations+ Show more

Learning Objectives

• Explain how sound travels as a mechanical wave through particles in different media.
• Relate frequency to pitch and amplitude to loudness using evidence and examples.
• Describe how sound speed depends on medium and temperature and how it affects wavelength.+ Show more

Learning Objectives

• Differentiate physical and chemical changes using evidence from everyday examples
• Identify signs of chemical change such as new substances, gas formation, and precipitates
• Explain how particle-level ideas (bond breaking/forming) relate to observable changes

Learning Objectives

• Explain how interference and superposition determine whether waves add or cancel
• Describe resonance and standing waves using nodes and antinodes
• Compare constructive interference, destructive interference, and damping effects on wave energy+ Show more

Learning Objectives

• Explain how paper chromatography separates mixture components using a mobile solvent and a stationary medium.
• Identify the roles of solubility, attraction, and partitioning in determining how far substances travel.
• Use Rf value ideas to compare how different components move on a chromatogram.+ Show more

Learning Objectives

• Explain diffusion as the net movement of particles from higher concentration to lower concentration
• Describe how temperature affects diffusion rates using the particle model
• Compare how particle size and medium properties influence diffusion+ Show more

Learning Objectives

• Explain the purpose of tables, bar graphs, and line graphs when representing data
• Identify how labels, units, and scales help readers interpret graphs accurately
• Choose an appropriate data representation for different types of observations (numerical vs. categorical)

Learning Objectives

• Identify graph patterns such as increasing, decreasing, plateau, and curved change from given data.
• Describe trends using quantitative language (direction, rate/steepness, and changes in values).
• Use simple evidence from graphs to make comparisons across different conditions.

Learning Objectives

• Understand how heritable traits influence survival and reproduction.
• Identify examples of natural selection in real-world scenarios.
• Explain the process by which populations change over generations due to environmental pressures.+ Show more

Learning Objectives

• Explain how photosynthesis provides energy for plant growth, repair, and reproduction.
• Describe how plants store chemical energy (such as sugars and starch) for later use.
• Use evidence to connect stored energy to plant structure changes over time.

Learning Objectives

• Understand the processes of adaptation and speciation in populations.
• Identify evidence and factors that contribute to reproductive isolation and lineage divergence.
• Analyze patterns of biogeography and morphology in species formation.+ Show more

Learning Objectives

• Understand how species occurrence and richness reveal biodiversity patterns across ecosystems.
• Identify different factors influencing biodiversity, such as habitat heterogeneity and colonization.
• Interpret data displays related to species diversity and endemism.+ Show more

Learning Objectives

• Identify different types of fossil occurrences and their significance.
• Understand stratigraphic sequences and their role in dating fossils.
• Analyze morphological transitions in the fossil record, such as fish-to-tetrapod evolution.+ Show more

Learning Objectives

• Understand how trait frequencies and population sizes change over generations.
• Use proportional reasoning, charts, and graphs to analyze population data.
• Interpret models and empirical data to predict population-level changes.+ Show more

Learning Objectives

• Understand how anatomical and molecular traits support evolutionary relationships.
• Identify homologous structures, vestigial organs, and conserved DNA sequences.
• Interpret phylogenetic trees and morphological gradients as evidence of common ancestry.+ Show more

Learning Objectives

• Identify key indicators that signify a chemical reaction through analysis of qualitative and quantitative data.
• Describe common examples and interpret pre- and post-interaction measurements to determine if a new substance has formed.
• Understand the significance of indicators such as color change, gas evolution, precipitate formation, and temperature change in chemical reactions.+ Show more

Learning Objectives

• Describe how atoms combine to form simple molecules like H2O and NaCl.
• Identify different models used to represent atomic structures and molecules.
• Understand how repeating units form polymers and ionic lattices.+ Show more

Learning Objectives

• Understand that mass is conserved during physical and chemical changes.
• Trace atoms and molecules through different processes to see that total mass remains constant.
• Use models and diagrams to explain the principle of mass conservation in closed systems.+ Show more

Learning Objectives

• Describe matter as composed of tiny particles and explain their behavior.
• Relate particle motion, collisions, and spacing to phases and changes of state.
• Understand how temperature and thermal energy affect particle behavior in gases.+ Show more

Learning Objectives

• Connect natural resources to their synthetic products.
• Compare properties of different materials used in manufacturing.
• Understand the processing steps and societal implications of synthetic materials.+ Show more

Learning Objectives

• Explain how particle models represent matter as collections of atoms and molecules that occupy space
• Use particle models to describe and predict how composition changes during chemical reactions
• Connect particle-model diagrams (relative counts and types of particles) to observable properties of substances

Learning Objectives

• Compare different conservation strategies and their ecological trade-offs.
• Identify and explain various habitat restoration and invasive species management techniques.
• Analyze case studies such as coral reef restoration and riparian buffer implementation.+ Show more

Learning Objectives

• Understand the components of food webs, including producers, consumers, and decomposers.
• Explain how energy diminishes across trophic levels in an ecosystem.
• Describe the roles of photosynthesis and cellular respiration in energy transfer.+ Show more

Learning Objectives

• Construct evidence-based arguments linking ecosystem component changes to population fluctuations.
• Analyze case studies involving predator reintroduction, invasive species, habitat fragmentation, and disease outbreaks.
• Interpret empirical data sets and longitudinal observations to infer causal relationships in population dynamics.+ Show more

Learning Objectives

• Construct explanations predicting patterns of species interactions across ecosystems.
• Identify and differentiate mutualism, competition, predation, and parasitism.
• Compare interaction outcomes in forest, grassland, and freshwater environments.+ Show more

Learning Objectives

• Understand how resource availability affects individual organisms and populations.
• Interpret data and measurement patterns related to resource gradients.
• Identify limiting resources such as water, nutrients, and light in various ecosystems.+ Show more

Learning Objectives

• Identify key features that distinguish cells as the basic units of life.
• Compare single-celled and multicellular organisms using observational evidence.
• Understand the relationships among cells, tissues, organs, and whole organisms.+ Show more

Learning Objectives

• Identify the main organelles of a cell and their functions.
• Understand how cell structures relate to their roles in energy production, protein synthesis, waste removal, and regulation.
• Compare plant and animal cells to see how specialization affects cell function.+ Show more

Learning Objectives

• Describe how photosynthesis and respiration transfer energy in cells.
• Identify reactants and products involved in photosynthesis and respiration.
• Explain how energy is conserved and cycled through biological processes.+ Show more

Learning Objectives

• Understand the mechanisms of negative and positive feedback in maintaining internal stability.
• Identify examples of feedback processes in physiological systems.
• Connect the roles of sensors, set points, and effectors in feedback regulation.+ Show more

Learning Objectives

• Identify the building blocks of macromolecules such as amino acids, nucleotides, fatty acids, and monosaccharides.
• Explain how monomers assemble into polymers through condensation reactions and are broken down by hydrolysis.
• Relate molecular structure to properties like enzyme catalysis, membrane transport, and polymerization.+ Show more

Learning Objectives

• Identify the major organ systems and their functions in the human body.
• Explain how tissues and organs work together in the circulatory, respiratory, digestive, and nervous systems.
• Describe the interdependence among different organs and systems in maintaining health.+ Show more

Learning Objectives

• Explain how cells communicate using chemical and electrical signals.
• Differentiate between rapid nervous responses and longer-term hormonal effects.
• Describe key signaling pathways such as synaptic transmission and receptor-mediated gene expression.+ Show more

Learning Objectives

• Understand how genetic and environmental factors influence phenotypic variation.
• Identify examples of phenotypic variation caused by different influences.
• Explain the link between DNA, gene expression, and observable traits.+ Show more