Grade 6 Science Worksheets

Learning Objectives

• Define and identify various physical properties of matter.
• Differentiate between physical and chemical changes based on properties.
• Observe and measure properties like mass, volume, density, conductivity, melting point, and hardness.+ Show more

Learning Objectives

• Understand the process of recrystallization and its role in purifying solids.
• Explain how temperature and solubility affect crystal formation during recrystallization.
• Describe the importance of controlled cooling in obtaining pure, large crystals.+ Show more

Learning Objectives

• Understand various conservation strategies including protected areas, habitat restoration, sustainable harvesting, and invasive species control.
• Evaluate the ecological, economic, and social trade-offs involved in different conservation methods.
• Describe how monitoring and long-term resilience are essential for assessing conservation effectiveness.+ Show more

Learning Objectives

• Understand the role of decomposers in nutrient cycling and ecosystem health.
• Identify different types of decomposers including fungi, bacteria, and detritivores.
• Explain how environmental factors affect decomposer efficiency.+ Show more

Learning Objectives

• Identify the key components of an ecosystem, including biotic and abiotic factors.
• Explain how living organisms interact with nonliving elements in their habitat.
• Describe the roles of sunlight, water, soil, and temperature in supporting ecosystems.+ Show more

Learning Objectives

• Describe the concept of a food chain and how energy transfers from producers to consumers.
• Identify examples of organisms at different trophic levels in a food chain.
• Understand the dependencies between organisms in a food chain and how changes affect ecosystems.+ Show more

Learning Objectives

• Understand what habitat fragmentation is and its causes.
• Identify the effects of habitat fragmentation on species and ecosystems.
• Explain strategies to mitigate habitat fragmentation.

Learning Objectives

• Understand the structure and function of food webs in ecosystems.
• Identify different species roles within a food web, such as producers, consumers, and predators.
• Analyze how changes in one species can affect the entire ecosystem network.+ Show more

Learning Objectives

• Understand the difference between habitats and niches in ecosystems.
• Identify how species interact within shared habitats and niches.
• Explain how resource partitioning reduces competition among species.+ Show more

Learning Objectives

• Understand how human activities alter ecosystems through land clearing, pollution, resource extraction, and species introduction.
• Identify the effects of deforestation and pollution on biodiversity and ecosystem functions.
• Analyze how human impacts can lead to long-term environmental changes and reduced ecosystem services.+ Show more

Learning Objectives

• Understand the definition and characteristics of invasive species.
• Identify examples and impacts of invasive species on ecosystems.
• Analyze how invasive species outcompete native organisms and alter habitats.+ Show more

Learning Objectives

• Understand the factors influencing the change in population sizes over time.
• Identify differences between exponential and logistic growth models.
• Explain how density-dependent and density-independent factors affect populations.+ Show more

Learning Objectives

• Understand how pollutants impact ecosystems and organisms.
• Identify bioaccumulation and biomagnification processes.
• Learn the effects of nutrient over-enrichment in aquatic environments.+ Show more

Learning Objectives

• Understand the roles of producers and consumers in food webs and ecosystems.
• Identify different types of consumers and their feeding habits.
• Explain energy transfer efficiency between trophic levels and its ecological impact.+ Show more

Learning Objectives

• Understand the processes of primary and secondary succession.
• Identify pioneer species and their role in succession.
• Explain how succession affects biodiversity and community structure.+ Show more

Learning Objectives

• Understand the different types of trophic interactions such as predation, herbivory, parasitism, competition, and mutualism.
• Identify examples of trophic interactions in ecosystems and analyze their effects on species and community structure.
• Explain how trophic interactions influence energy flow and population dynamics within ecological networks.+ Show more

Learning Objectives

• Differentiate between physical and chemical changes based on observable indicators.
• Identify characteristic evidence such as gas formation, precipitate, color change, and temperature change in chemical processes.
• Recognize physical alterations like shape or phase reversibility and understand substance conservation.+ Show more

Learning Objectives

• Explain how gravity, terrain, and land cover shape water movement within a watershed
• Describe how infiltration and soil storage affect the timing of runoff
• Connect vegetation and soil stability to erosion and sediment transport+ Show more

Learning Objectives

• Understand the cycles in the sky caused by Earth's rotation, orbit, and tilt.
• Identify how the Moon's orbit creates phases and affects the night sky.
• Predict the effects of Earth's movement on day length, seasons, and night and day.+ Show more

Learning Objectives

• Understand the processes involved in mass wasting such as rockfalls, landslides, and slumps.
• Identify factors that trigger surface movements like rainfall, freeze-thaw cycles, and earthquakes.
• Explain how debris deposition affects drainage and erosion patterns.+ Show more

Learning Objectives

• Explain how Earth’s water is stored in major reservoirs such as oceans, lakes, rivers, groundwater, glaciers, and the atmosphere.
• Describe how changes in state and processes like precipitation, runoff, and infiltration move water between reservoirs.
• Compare whether water transfer between reservoirs is usually gradual or fast and provide examples.

Learning Objectives

• Understand the processes of erosion and deposition and how they shape Earth's surface.
• Identify agents responsible for erosion such as water, wind, ice, and gravity.
• Explain how deposition occurs and the features it creates like deltas and dunes.+ Show more

Learning Objectives

• Understand how Earth's systems are interconnected and how changes in one system can affect others.
• Identify the different Earth systems: lithosphere, hydrosphere, atmosphere, and biosphere.
• Describe how energy from the Sun drives cycles and interactions among Earth's systems.+ Show more

Learning Objectives

• Explain how precipitation returns water to Earth and describe examples of precipitation types.
• Describe infiltration and runoff and how they affect soil moisture and groundwater recharge.
• Use gravity and landscape features to predict how water moves across or into the ground.

Learning Objectives

• Understand how graphs of temperature and precipitation reveal climate patterns.
• Identify and interpret trends and variability in climate data over multiple years.
• Differentiate between typical climate patterns and anomalies using historical data.+ Show more

Learning Objectives

• Understand the structures and functions of the respiratory and digestive systems.
• Explain how gas exchange and nutrient absorption support life processes.
• Identify key organs involved in respiration and digestion and their roles.

Learning Objectives

• Explain how weathering, sediment transport, and deposition move Earth materials through cycles.
• Describe how living things add organic matter to soils and affect water retention.
• Use cause-and-effect reasoning to connect transformations across Earth’s spheres.

Learning Objectives

• Explain how dams, withdrawals, and land-use changes can alter the timing and pathways of the water cycle
• Describe how changes in water flow can affect sediment transport and aquatic habitats
• Identify ways human pollution and habitat changes can impact water quality and living organisms

Learning Objectives

• Explain how precipitation can infiltrate, percolate, and recharge groundwater aquifers.
• Describe how groundwater contributes to streamflow as baseflow during dry periods.
• Interpret how permeability and landscape geometry affect the groundwater–surface water connection.

Learning Objectives

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

Learning Objectives

• Explain how moving water erodes Earth materials and transports sediment
• Describe how decreasing water energy leads to deposition
• Connect erosion and deposition to landform features such as river terraces and deltas+ Show more

Learning Objectives

• Explain how energy from the Sun and gravity influence Earth system processes such as heating, water movement, and sediment transport.
• Describe how phase changes in water relate to evaporation and cloud formation.
• Use cause-and-effect reasoning to predict how energy and gravity shape the distribution of sediments and soils over time.+ Show more

Learning Objectives

• Explain how Earth’s four system spheres—geosphere, hydrosphere, atmosphere, and biosphere—interact
• Describe how matter and energy move between spheres through processes such as weathering, evaporation, cloud formation, and biological activity
• Use gravity and energy concepts to predict how changes in one sphere can affect other spheres

Learning Objectives

• Explain how cooling and vapor pressure changes lead to condensation or ice crystal formation in the atmosphere
• Describe how clouds form from condensed droplets or ice crystals and how this relates to the water cycle
• Compare how clouds affect Earth’s energy balance by reflecting sunlight and trapping infrared radiation+ Show more

Learning Objectives

• Explain how atoms rearrange during a chemical reaction to form new substances
• Describe how the properties of products depend on new atomic arrangements rather than just mixing
• Use particle and atomic models to predict what changes and what stays the same in chemical reactions

Learning Objectives

• Explain the difference between reactants and products in a chemical reaction.
• Describe how product properties can differ from reactant properties to support the idea that a reaction occurred.
• Use particle diagrams to show that atoms are rearranged into new combinations during a reaction.+ Show more

Learning Objectives

• Explain how physical changes alter a substance’s form or state without changing its atomic composition
• Identify common examples of physical changes such as melting, freezing, tearing, and dissolving
• Compare physical changes to chemical changes using observable properties and reversibility

Learning Objectives

• Describe how particle models represent matter as atoms and molecules that occupy space
• Use particle models to explain how rearranging particles can cause matter to change
• Connect particle-level composition to observable properties of substances

Learning Objectives

• Explain how and why new substances can form different properties after a chemical reaction.
• Use macroscopic observations (solubility, conductivity, melting behavior) to distinguish new substances from physical changes.
• Connect particle models to changes in composition caused by atomic rearrangement.

Learning Objectives

• Explain how particle models describe physical changes using the ideas of particle arrangement and state change.
• Use particle models to describe chemical reactions as rearrangements of atoms into new combinations.
• Connect evidence of new substances to conservation of atoms in both physical changes and chemical reactions.

Learning Objectives

• Differentiate mixtures and compounds using particle models
• Explain how composition affects properties of matter
• Use physical vs chemical ideas to predict whether a sample can be separated

Learning Objectives

• Explain mass conservation in terms of conserved atoms within a closed system.
• Connect particle-level conservation of atoms to macroscopic measurements of mass.
• Use vocabulary such as reactants, products, and closed system to describe conservation events.

Learning Objectives

• Explain what compounds are and how they form from atoms of different elements.
• Describe how particle models show compounds with definite bonding arrangements.
• Use element ratios in compounds to predict properties and understand macroscopic differences.

Learning Objectives

• Explain the conservation of atoms by counting each type of atom on the reactant and product sides of a particle model.
• Use particle-level reasoning to predict whether a chemical reaction forms new combinations while conserving the number of atoms of each element.
• Justify reaction outcomes using evidence based on atom counts rather than mass changes or appearance alone.

Learning Objectives

• Identify observable indicators that a chemical reaction has occurred.
• Differentiate chemical evidence from signs of physical change.
• Connect evidence of new substances to particle-level rearrangements.

Learning Objectives

• Compare the properties of substances before and after an interaction to determine what evidence is present
• Distinguish between changes that do not form new substances and interactions that produce new substances
• Use observable evidence (color change, gas release, new solid, and new material) to support chemical reasoning

Learning Objectives

• Explain how particle models describe matter using atoms and particles too small to see
• Relate the composition of atoms in substances to observable physical and chemical properties
• Use particle-level reasoning to predict how changes in matter affect properties

Learning Objectives

• Explain conservation of atoms during chemical reactions as rearrangements of atoms into new combinations
• Use particle diagrams to track atoms in reactants and products
• Predict whether a reaction description or diagram conserves atoms by counting atoms of each element