Grade 6 Science Worksheets

Learning Objectives

• Explain how births, deaths, immigration, and emigration change population size.
• Interpret graphs and tables showing population increases and declines.
• Calculate simple trait frequencies and population changes.+ Show more

Learning Objectives

• Interpret branching patterns in phylogenetic trees as evidence of relationships.
• Explain how homologous structures provide evidence of common ancestry.
• Describe how vestigial organs can reveal clues about ancestral forms.+ Show more

Learning Objectives

• Explain how chemical and electrical signals coordinate cell activities.
• Compare nervous and hormonal communication by speed and duration.
• Describe how receptors trigger cellular responses to signals.+ Show more

Learning Objectives

• Explain how plate motion and volcanic activity change Earth's surface.
• Describe how rivers and glaciers transport sediment.
• Use rock and landform evidence to explain landscape change.+ Show more

Learning Objectives

• Explain how mass affects gravitational attraction between objects.
• Describe how distance changes gravitational attraction.
• Explain how gravity and motion work together in an orbit.+ Show more

Learning Objectives

• Explain how unequal solar heating drives atmospheric circulation.
• Identify the roles of Hadley, Ferrel, and polar cells.
• Describe how winds and ocean currents transport heat and moisture.+ Show more

Learning Objectives

• Identify patterns in observational and instrumental natural hazard data.
• Explain how recurrence intervals describe hazard patterns and risk.
• Interpret hazard records for locations, frequencies, and linked conditions.+ Show more

Learning Objectives

• Identify criteria that describe what a design solution must accomplish.
• Identify constraints involving materials, cost, size, time, and safety.
• Explain how simple models can predict possible cause-and-effect relationships.+ Show more

Learning Objectives

• Identify natural resources used to make synthetic materials
• Explain how processing changes raw materials into manufactured products
• Compare material properties for different product purposes+ Show more

Learning Objectives

• Compare conservation strategies for maintaining biodiversity and ecosystem services
• Explain how habitat restoration and protected areas support species persistence
• Evaluate conservation trade-offs involving effectiveness, feasibility, and economic constraints+ Show more

Learning Objectives

• Identify environmental factors that cause populations to increase or decline.
• Describe population change patterns using data collected over time.
• Explain how predators, invasive species, and disease affect populations.+ Show more

Learning Objectives

• Explain how tectonic, atmospheric, and water processes produce natural hazards.
• Interpret historical records, seismic data, satellite images, and hazard maps.
• Describe how hazard frequency, intensity, and location affect communities.+ Show more

Learning Objectives

• Explain how Earth, Moon, and Sun positions produce lunar phases
• Distinguish solar and lunar eclipses using their alignment patterns
• Sequence the primary lunar phases in their repeating pattern+ Show more

Learning Objectives

• Identify genetic and environmental contributors to phenotypic variation.
• Explain how DNA sequence differences can influence proteins and traits.
• Describe how nutrition and temperature can affect traits during development.+ Show more

Learning Objectives

• Identify major organelles and describe their functions.
• Explain how organelle structure supports specific cell functions.
• Compare specialized structures in plant and animal cells.+ Show more

Learning Objectives

• Describe how source strength affects electric and magnetic interactions.
• Compare interaction strength using patterns in force data.
• Distinguish attraction and repulsion between charges and magnets.+ Show more

Learning Objectives

• Describe particle spacing and motion in solids, liquids, and gases
• Explain how heating and cooling change particle kinetic energy
• Use particle collisions to explain gas pressure+ Show more

Learning Objectives

• Explain variation in inherited traits within populations
• Describe how environmental pressures affect survival and reproduction
• Explain how natural selection changes trait frequencies+ Show more

Learning Objectives

• Explain how multiple forces combine to produce net force
• Calculate acceleration using net force and mass
• Predict acceleration changes when force or mass changes+ Show more

Learning Objectives

• Explain how gravity keeps planets and satellites in orbit
• Describe how orbital distance relates to orbital period
• Identify how orbital speed changes along an elliptical path+ Show more

Learning Objectives

• Explain how evaporation and condensation move water through the hydrosphere
• Describe how solar energy and gravity drive water cycle processes
• Trace water movement among ocean, ice, surface water, and groundwater+ Show more

Learning Objectives

• Explain how engineers compare prototype test data
• Identify trade-offs among strength, weight, cost, and durability
• Calculate averages from repeated design test results+ Show more

Learning Objectives

• Identify the roles of major organs in four organ systems
• Explain how organs work together within organ systems
• Connect oxygen and nutrients with cellular needs+ Show more

Learning Objectives

• Explain how human activities alter land, air, water, and ecosystems
• Describe causal links between human activities and environmental changes
• Identify environmental effects of deforestation, agriculture, and urbanization+ Show more

Learning Objectives

• Explain how photosynthesis transfers light energy into chemical energy
• Identify reactants and products in photosynthesis and respiration
• Describe how stomata support gas exchange in leaves+ Show more

Learning Objectives

• Identify mutualism, competition, predation, and parasitism
• Explain how niche partitioning can reduce competition
• Compare species interactions across different ecosystems+ Show more

Learning Objectives

• Explain how human activities alter land, air, water, and ecosystems
• Describe causal links between human activities and environmental changes
• Identify environmental effects of deforestation, agriculture, and urbanization+ Show more

Learning Objectives

• Explain how limited resources affect organism populations.
• Identify patterns between resource availability and population size.
• Describe carrying capacity and population fluctuations.+ Show more

Learning Objectives

• Compare planetary sizes and distances using proportional relationships
• Interpret astronomical units, planetary radii, and orbital periods
• Explain how scale models represent large spatial relationships+ Show more

Learning Objectives

• Explain how plate tectonics influences mineral resource distribution
• Describe how sedimentation affects where resources are found
• Explain how groundwater moves through aquifers+ Show more

Learning Objectives

• Identify criteria and constraints used to evaluate design solutions
• Compare design options using quantitative and qualitative evidence
• Explain how trade-offs affect engineering design decisions+ Show more

Learning Objectives

• Explain how atoms are conserved during physical and chemical changes.
• Use particle models to trace atoms before and after changes.
• Compare mass measurements in closed systems.+ Show more

Learning Objectives

• Explain how genetic differences contribute to variation among individuals
• Describe how environmental factors affect observable traits
• Identify how inherited alleles and conditions interact to produce phenotypes+ Show more

Learning Objectives

• Identify interactions among the geosphere, hydrosphere, atmosphere, and biosphere
• Explain how matter moves between connected Earth systems
• Describe how energy transfers affect Earth system patterns+ Show more

Learning Objectives

• Explain how genes, alleles, and chromosomes relate to inheritance.
• Use simple inheritance models to predict possible offspring traits.
• Interpret probability and predicted ratios in inheritance models.+ Show more

Learning Objectives

• Explain how feedback control maintains internal stability
• Compare negative and positive feedback using physiological examples
• Describe how sensors and effectors coordinate body responses+ Show more

Learning Objectives

• Understand how different renewable energy systems convert environmental sources into usable electrical energy.
• Identify the stages in photovoltaic, wind, and hydro energy transformations.
• Explain the energy losses involved at each stage of renewable energy conversion.+ Show more

Learning Objectives

• Explain how thermal energy transfers through conduction, convection, and radiation.
• Identify the medium and movement involved in each thermal energy mechanism.
• Use evidence from everyday examples to determine which transfer mechanism is happening.

Learning Objectives

• Explain why organisms compete for limited resources such as space, light, water, and nutrients
• Describe how traits and behaviors affect access to resources during competition
• Predict how competition can change population sizes and influence which species persist in a community

Learning Objectives

• Understand the ecological impacts of pollution such as eutrophication, endocrine disruption, and biomagnification.
• Identify measurable environmental indicators affected by pollution.
• Analyze cause-and-effect relationships related to pollution impacts on ecosystems.+ Show more

Learning Objectives

• Define plate tectonics using accurate Earth science vocabulary.
• Identify tectonic plates as large, moving pieces of Earth’s lithosphere.
• Distinguish continental crust from oceanic crust.+ Show more

Learning Objectives

• Understand how xylem and phloem transport water, minerals, and sugars in trees.
• Identify how environmental conditions affect sap flow in trees.
• Explain the protective features of bark against herbivory and fire.+ Show more

Learning Objectives

• Understand how ground-based telescopes help astronomers observe the sky
• Identify different instruments used in space science
• Describe how satellite data is used to study Earth's surface and atmosphere+ Show more

Learning Objectives

• Identify the main parts of the heart and blood vessels.
• Describe the function of each part in circulating blood and nutrients.
• Explain how blood transports gases, nutrients, and wastes throughout the body.+ Show more

Learning Objectives

• Explain how inherited differences (genes and alleles) and environmental factors both cause observable variation.
• Describe how mutations can create new allele combinations that affect phenotypes.
• Use examples such as temperature-dependent coloration and nutrient effects to distinguish genetic vs nonheritable influences.+ Show more

Learning Objectives

• Understand how scientific research influences public health policies and societal change.
• Evaluate the trade-offs involved in environmental regulation and resource management.
• Analyze data and evidence to assess the outcomes of societal interventions based on science.+ Show more

Learning Objectives

• Understand how energy moves through different levels of an ecosystem
• Describe the concept of energy transfer efficiency
• Identify the reasons for energy loss at each trophic level+ Show more

Learning Objectives

• Understand the key life processes that occur within cells, including photosynthesis and cellular respiration.
• Explain how diffusion and transport mechanisms support material movement in cells.
• Describe the interconnection of energy transformation and gas exchange in organisms.+ Show more