Grade 6 Science Worksheets

Learning Objectives

• Identify conservation strategies that protect forest biodiversity and ecosystem services
• Explain how habitat protection and restoration support long-term ecosystem viability
• Describe why genetic diversity and seed-source choices matter for replanting+ Show more

Learning Objectives

• Describe how a series circuit forms a single path for current
• Explain why current is the same through series components
• Predict how total voltage is shared across series elements+ Show more

Learning Objectives

• Explain the differences between random, stratified, and systematic sampling
• Identify trade-offs between sample coverage, bias reduction, and practical constraints
• Evaluate how sampling choices affect the strength and limits of conclusions

Learning Objectives

• Explain how friction opposes motion between two contacting surfaces
• Compare how surface texture affects friction and sliding distance
• Describe how friction and air resistance influence motion and energy changes

Learning Objectives

• Understand what makes a question testable in scientific experiments.
• Learn how to identify variables and measurable outcomes in questions.
• Develop skills to formulate testable scientific questions from observations.

Learning Objectives

• Identify the major structures of a tree and their functions.
• Explain how tree structures support survival in different habitats.
• Describe relationships between form and function in tree parts.+ Show more

Learning Objectives

• Understand the relationship between voltage, current, and resistance in circuits.
• Calculate circuit elements' properties using measured voltage, current, and resistance values.
• Explain how resistance changes affect current in a fixed potential difference circuit.+ Show more

Learning Objectives

• Understand the concept of net force and how it affects object motion.
• Identify different forces acting on an object and their directions.
• Relate net force, mass, and acceleration using mathematical formulas.+ Show more

Learning Objectives

• Learn how the Sun’s energy reaches Earth
• Understand why energy varies by location and angle
• Discover how solar energy affects weather and climate+ Show more

Learning Objectives

• Understand different sampling methods and when to use each.
• Compare random, stratified, and systematic sampling techniques.
• Analyze advantages and limitations of various sampling strategies.+ Show more

Learning Objectives

• Understand that sound is a mechanical wave that travels through various media.
• Identify how frequency affects pitch and amplitude affects loudness.
• Explain how sound speed varies depending on the medium and temperature.+ Show more

Learning Objectives

• Understand the concept of electrical energy transfer
• Explain how power relates to energy transfer rate
• Identify everyday examples of electrical power use+ Show more

Learning Objectives

• Explain how photosynthesis converts light energy into chemical energy stored in glucose and other molecules.
• Identify the inputs (carbon dioxide and water) and the byproduct (oxygen) of photosynthesis.
• Describe, at a basic level, how the light-dependent reactions form ATP and NADPH and how the Calvin cycle uses them to build sugars.

Learning Objectives

• Understand what habitat fragmentation is and how it impacts ecosystems.
• Analyze how landscape changes influence animal and plant populations.
• Identify examples of habitat division caused by human activities.+ Show more

Learning Objectives

• Understand how camber, thickness, chord length, and leading-edge curvature influence pressure distribution and lift.
• Contrast Bernoulli and Newtonian explanations of lift.
• Identify the effects of angle of attack and critical angles for stall on lift production.+ Show more

Learning Objectives

• Define density as mass packed into a given volume
• Identify and compare mass, volume, density, and material
• Calculate density using mass divided by volume+ Show more

Learning Objectives

• Explain how Earth’s rotation creates apparent daily sky motion
• Describe how Earth’s orbit changes the Sun’s apparent yearly path
• Define diurnal rising, setting, and apparent stellar paths+ Show more

Learning Objectives

• Explain how growth rings form and how they can be used to estimate a tree’s age and growth patterns.
• Describe how ring width and density can reflect environmental conditions such as moisture, temperature, and disturbances.
• Connect dendrochronology methods to reconstructing past climate and disturbance events (such as drought or fire).

Learning Objectives

• Understand the process of photosynthesis and how plants convert sunlight into chemical energy.
• Identify the key components involved in photosynthesis, including light, water, carbon dioxide, and oxygen.
• Explain the energy transformation that occurs during photosynthesis and its importance to life on Earth.

Learning Objectives

• Describe how light reflects off surfaces according to angle relationships.
• Explain how refraction bends light as it passes between different media.
• Identify the role of lenses in focusing or dispersing light through refraction.+ Show more

Learning Objectives

• Compare conservation strategies, habitat restoration, protected area design, and invasive species management for biodiversity outcomes.
• Analyze trade-offs among effectiveness, feasibility, and economic constraints in maintaining ecosystem services.
• Explain how different solutions can support pollination, water purification, and nutrient cycling under changing environmental pressures.

Learning Objectives

• Identify descriptive observations and numerical measurements in scientific data.
• Complete and correct scientific data tables accurately.
• Choose appropriate graph types for different scientific data sets.+ Show more

Learning Objectives

• Explain how the Moon’s orbit around Earth creates predictable changes in lunar phases.
• Describe how the relative positions of the Sun, Earth, and Moon determine what portion of the Moon is illuminated from Earth.
• Use observations of nightly changes in the Moon’s position to connect lunar motion with time and direction.

Learning Objectives

• Understand the basic components of the immune system
• Identify how skin and mucous membranes act as first defenses
• Describe innate and adaptive immune responses+ Show more

Learning Objectives

• Explain how birth rate, death rate, immigration, and emigration affect population size
• Describe carrying capacity and limiting factors in terrestrial and aquatic ecosystems
• Differentiate between exponential and logistic population growth models+ Show more

Learning Objectives

• Explain how dichotomous and multi-access identification keys use observable traits to sort organisms
• Construct binary branches in a key using contrasting, measurable characteristics
• Evaluate and improve the accuracy of a key by testing it with local specimens

Learning Objectives

• Explain how lift, drag, and stability relate to aerodynamic design choices.
• Describe how wing shape, surface smoothness, and orientation affect how devices fly.
• Use design evidence (test results) to make conclusions about aerodynamic performance.

Learning Objectives

• Identify different types of evidence used in scientific explanations.
• Distinguish between correlation and causation using evidence.
• Interpret data and observations to support scientific claims.+ Show more

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

• Describe how habitat restoration, protected areas, invasive species removal, and community-based monitoring support biodiversity.
• Explain why assisted migration is considered and why it can be risky or controversial.
• Use species-at-risk and ecosystem-service ideas to prioritize conservation actions.+ Show more

Learning Objectives

• Understand the concept of reactants and products in a chemical reaction.
• Identify reactants and products in different diagrams and descriptions.
• Describe how properties of products differ from those of reactants.+ Show more

Learning Objectives

• Define what a mixture is and identify examples in daily life.
• Recognize the properties that distinguish different types of mixtures.
• Understand how mixtures can be separated based on their observable features.+ Show more

Learning Objectives

• Identify the main components of an electrical circuit
• Describe the function of each circuit component
• Explain how energy is transformed within a circuit+ Show more

Learning Objectives

• Understand the hierarchical organization of biological levels from cells to organisms.
• Identify the relationships between cells, tissues, organs, organ systems, and organisms.
• Explain how disruptions at one level can affect higher levels of biological organization.+ Show more

Learning Objectives

• Understand how El Niño influences global weather patterns.
• Identify the atmospheric and oceanic changes associated with El Niño.
• Connect ocean surface temperature variations to climate impacts in different regions.+ Show more

Learning Objectives

• Pose testable questions and explain how they can be investigated scientifically
• Identify independent and dependent variables and distinguish them from controlled variables
• Use operational definitions and controlled comparisons to design fair tests+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures using observable properties
• Identify solutions as homogeneous mixtures and explain what “uniform composition” means
• Describe common separation methods (filtration, decanting, evaporation) and what property they use

Learning Objectives

• Understand the basic principles of streamlining
• Identify examples of streamlined objects
• Explain how shape influences airflow and energy use

Learning Objectives

• Explain how physiological adaptations help organisms survive in specific environments.
• Identify examples of internal processes such as water balance, metabolism changes, and ion regulation.
• Use evidence from a text to answer questions about survival and habitat suitability.

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

• Understand the hierarchy of biological levels from cells to organisms.
• Identify the roles of cells, tissues, organs, and organ systems.
• Explain how each level contributes to the overall functioning of an organism.

Learning Objectives

• Describe how light reflects off surfaces and the relationship between angles in reflection.
• Explain how refraction bends light when passing through different materials based on refractive indices.
• Identify real-world phenomena caused by reflection and refraction, such as mirages and lenses.+ Show more

Learning Objectives

• Explain how limiting resources affect individual organisms and population size.
• Use quantitative observations (measurements and patterns) to infer limiting resources and carrying capacity.
• Describe how resource gradients influence species distribution across marsh, desert, and forest habitats.

Learning Objectives

• Identify whether data are numerical or categorical and choose an appropriate representation.
• Read information from tables, bar graphs, and line graphs using consistent labels and scales.
• Compare categories and describe how a variable changes over time based on a graph.+ Show more

Learning Objectives

• Understand that variation in heritable traits affects survival and reproduction.
• Identify how environmental pressures influence trait frequencies in populations.
• Recognize real-world examples of natural selection, such as coloration changes and antibiotic resistance.

Learning Objectives

• Understand the concept of energy efficiency as the ratio of useful output to total input.
• Identify common causes of energy losses in machines and systems.
• Evaluate the trade-offs between performance and energy waste in different technologies.+ Show more

Learning Objectives

• Distinguish qualitative data from quantitative data
• Select appropriate graphs for different types of observations
• Interpret trends, clusters, and outliers in graphs+ Show more

Learning Objectives

• Understand how the circulatory system transports blood, gases, nutrients, hormones, and wastes.
• Identify the key organs and vessels involved in circulation.
• Explain how the heart creates pressure to facilitate blood movement.+ Show more