Grade 6 Science Worksheets

Learning Objectives

• Explain how changes in sea surface temperatures in the tropical Pacific can affect evaporation, cloud formation, and wind circulation
• Describe how El Niño and La Niña can shift rainfall and temperature patterns in distant regions
• Use evidence-based observations (precipitation, wind, and temperature trends) to connect ocean changes to broader climate impacts

Learning Objectives

• Explain how the angle of incoming solar energy affects temperature differences on Earth
• Describe how unequal heating drives changes in air movement and ocean circulation
• Connect energy transfers in the atmosphere and oceans to daily weather and seasonal climate patterns

Learning Objectives

• Explain that weather describes short-term atmospheric conditions using elements such as temperature, precipitation, wind, cloud cover, and humidity.
• Describe how measuring multiple weather elements helps scientists and meteorologists build an up-to-date picture of regional conditions.
• Recognize that weather elements can change quickly, which can cause forecasts to be updated as new observations arrive.

Learning Objectives

• Explain the difference between balanced forces and unbalanced forces using net force.
• Predict how balanced or unbalanced forces affect an object’s speed and direction.
• Use the direction of the net force to describe the resulting change in motion.

Learning Objectives

• Define speed and velocity and explain how velocity includes direction
• Calculate or interpret average speed using total distance and elapsed time
• Explain how changing speed affects motion and how consistent units improve clarity+ Show more

Learning Objectives

• Explain how abiotic factors (nonliving conditions) affect where organisms can live in an ecosystem.
• Identify biotic factors (living organisms) and describe producers, consumers, and decomposers.
• Compare ecosystem components in different environments such as ponds, deserts, and tropical forests.

Learning Objectives

• Explain how inherited adaptations help organisms survive and reproduce in specific environments
• Identify examples of adaptations that improve feeding, protection, or tolerance to temperature and moisture
• Describe how environmental pressures (living and nonliving factors) increase the usefulness of certain traits

Learning Objectives

• Explain what a niche is and how it differs from an organism’s habitat
• Describe how two species can coexist through niche differences and reduced niche overlap
• Use examples to predict how competition changes when resources become limited

Learning Objectives

• Explain how physiological adaptations help organisms survive in specific environments
• Identify examples of physiological traits related to water balance, metabolism, and ion/oxygen regulation
• Use evidence from statements or scenarios to classify traits as physiological adaptations

Learning Objectives

• Use evidence to support scientific claims by connecting observations and measurements to conclusions.
• Distinguish correlation from causation and explain why correlation alone is not proof of cause.
• Evaluate whether evidence is relevant, described clearly, and sufficient to support a claim.

Learning Objectives

• Differentiate between precision and accuracy in scientific measurements
• Choose appropriate tools and correct units for measurement tasks
• Identify common sources of error and describe ways to reduce them

Learning Objectives

• Understand how evidence connects to scientific claims through reasoning.
• Interpret patterns in data such as graphs to make inferences about motion.
• Evaluate the strength of scientific explanations based on data and models.+ Show more

Learning Objectives

• Understand the key principles for designing valid controlled tests.
• Learn how to articulate hypotheses in measurable terms.
• Identify appropriate control groups and sample size considerations.+ Show more

Learning Objectives

• Analyze how scientific data influences societal decisions and policies.
• Evaluate the trade-offs between economic growth and environmental protection.
• Identify indicators used to measure the effectiveness of public health and environmental measures.+ Show more

Learning Objectives

• Understand measures of biodiversity such as species richness, abundance, and evenness across ecosystems.
• Explore sampling methods like transects and quadrats used to quantify diversity.
• Interpret spatial patterns and relate biodiversity metrics to ecosystem stability and resilience.+ Show more

Learning Objectives

• Explain the concept of disturbance regimes and their components.
• Identify different types of disturbance events in forest ecosystems.
• Understand how disturbance frequency and intensity influence forest succession.+ Show more

Learning Objectives

• Understand how scientific investigation and technological development are interconnected.
• Describe how tools like microscopes and sensors extend observation and measurement.
• Explain how technological advances influence scientific inquiry and vice versa.+ Show more

Learning Objectives

• Understand the different biological levels from cells to organisms.
• Identify how cells combine into tissues and organs, and how organ systems support life.
• Recognize how disruptions at one level affect the entire organism.+ Show more

Learning Objectives

• Understand the structure and function of organs in the human body.
• Identify different tissue types and their roles within organs.
• Describe how tissues interact within organs to perform specific functions.+ Show more

Learning Objectives

• Understand the structure and function of the respiratory system.
• Identify how respiratory surfaces such as lungs and gills facilitate gas exchange.
• Explain how surface area adaptations improve respiratory efficiency.+ Show more

Learning Objectives

• Explain how decomposers break down dead organisms and waste to return nutrients to ecosystems
• Describe the roles of fungi and bacteria in nutrient cycling through soil and water
• Connect nutrient availability to the growth and structure of producer populations over time+ Show more

Learning Objectives

• Explain how cells convert energy to support life processes.
• Describe how photosynthesis and cellular respiration are connected pathways.
• Compare diffusion and transport mechanisms in moving materials across membranes.

Learning Objectives

• Identify different types of natural resources and their distribution around the world.
• Understand the environmental and economic impacts of renewable and nonrenewable resources.
• Explore methods used for resource assessment and sustainable use principles.+ Show more

Learning Objectives

• Understand the difference between mixtures and solutions.
• Identify the components of different types of mixtures.
• Explain methods used to separate mixture components based on their properties.+ Show more

Learning Objectives

• Explain the mechanisms of thermal energy transfer: conduction, convection, and radiation.
• Identify practical examples of each energy transfer method in real-world contexts.
• Connect energy transfer processes to observable temperature changes and material properties.+ Show more

Learning Objectives

• Explain how animals use both matter and energy to live, grow, and function.
• Describe how food provides matter that becomes parts of an animal’s body.
• Describe how food provides energy that powers life processes and releases energy to the environment.

Learning Objectives

• Explain how photosynthesis provides the matter and energy plants need to build biomass
• Describe how carbohydrates become structures like cellulose and other molecules used for living systems
• Use evidence from plant growth to connect biomass changes to continuous inputs of matter and energy

Learning Objectives

• Describe major plant structures such as roots, stems, leaves, and flowers and explain their functions in resource acquisition and reproduction.
• Identify the roles of vascular tissues like xylem and phloem in transporting water and nutrients within plants.
• Explain basic animal organ systems such as digestive, respiratory, and circulatory systems and how they contribute to organism survival.+ Show more

Learning Objectives

• Explain how energy moves between trophic levels in an ecosystem.
• Identify why only part of the energy at one trophic level becomes biomass at the next.
• Describe how energy loss affects the number of consumers higher up in a food chain.

Learning Objectives

• Understand key stewardship strategies such as habitat restoration and protected-area design.
• Evaluate trade-offs among different conservation approaches.
• Identify criteria for prioritizing biodiversity actions.+ Show more

Learning Objectives

• Understand how voltage, current, and resistance are related through proportional relationships.
• Apply simple calculations to determine circuit element characteristics using measured values.
• Explain how changes in resistance affect current in a circuit with a fixed voltage.+ Show more

Learning Objectives

• Explain how prototype evaluation uses data, observations, and constraints to judge a design.
• Identify measurements and failure observations that can be used as evidence for improvement.
• Use evaluation criteria to compare a prototype’s performance and determine whether it meets limits.

Learning Objectives

• Explain how scientific claims are supported by evidence from observations and measurements
• Use scientific ideas (such as density) to connect evidence to an explanation
• Compare competing explanations by judging which one best matches the evidence+ Show more

Learning Objectives

• Explain how to communicate experimental results clearly using accurate data, proper units, and labeled graphs or tables
• Describe safety expectations for common lab situations (heat sources, eye protection, handling and disposal of substances)
• Practice ethical reporting by using accurate measurements, citing sources, and discussing limitations honestly

Learning Objectives

• Describe the relative positions of the Sun, Earth, and Moon during different lunar phases.
• Explain how the geometry of illumination affects the visible fraction of the Moon's surface.
• Distinguish between lunar phases and eclipse circumstances based on observational patterns.+ Show more

Learning Objectives

• Explain how environmental changes (temperature, drought, and food availability) affect which traits help organisms survive.
• Describe how differences in traits can change survival and reproduction within a population over time.
• Connect adaptation to ecosystem change by identifying how shifts in resources can alter which organisms remain.

Learning Objectives

• Explain how scientific knowledge can change when new evidence conflicts with earlier ideas
• Differentiate scientific theories and scientific laws
• Describe how communication, peer evaluation, and reproducibility strengthen scientific evidence+ Show more

Learning Objectives

• Understand the parameters influencing population growth, such as birth and death rates, immigration, and emigration.
• Identify differences between logistic and exponential growth models in populations.
• Explain the concepts of density-dependent and density-independent factors affecting populations.+ Show more

Learning Objectives

• Understand how growth rings record annual growth in trees.
• Identify what environmental factors influence the width and density of growth rings.
• Learn how dendrochronology is used to study past climates and environmental events.+ Show more

Learning Objectives

• Understand the concept of keystone species and their role in ecosystems.
• Identify regional case studies illustrating keystone species effects.
• Explain cascading effects caused by keystone species on biodiversity and habitat.+ Show more

Learning Objectives

• Identify the roles of sources, conductors, loads, and control elements in an electrical circuit.
• Explain how energy transforms from chemical to electrical and light/thermal energy within circuits.
• Describe the function of switches in controlling the flow of electrical energy.+ Show more

Learning Objectives

• Understand how wing shape influences lift, stall behavior, and maneuverability.
• Compare high-aspect-ratio wings used on gliders with low-aspect, robust wings on agricultural aircraft.
• Explain how curvature and taper affect pressure distribution and performance.+ Show more

Learning Objectives

• Understand the principles of streamlining and how body shape affects airflow.
• Identify practical examples of streamlined designs in agriculture and aircraft.
• Explain how shape changes influence pressure distribution and energy use.+ Show more

Learning Objectives

• Differentiate between physical and chemical changes based on observable indicators.
• Identify characteristic evidence of chemical changes such as gas formation, precipitate, color change, and temperature change.
• Understand that physical changes are often reversible and involve shape or phase alterations without changing substance composition.+ Show more

Learning Objectives

• Understand the conventions for reporting measured data with appropriate units and significant figures.
• Identify sources of random and systematic errors in measurement.
• Apply calibration procedures to instruments to minimize bias.+ Show more

Learning Objectives

• Understand the roles of independent, dependent, and controlled variables in scientific experiments.
• Identify variables from operational definitions and experimental setup descriptions.
• Recognize potential confounding influences and ways to control them in experimental design.+ Show more

Learning Objectives

• Understand the principle of conservation of mass in closed systems during physical and chemical changes.
• Identify real-world examples where mass conservation applies or does not apply.
• Interpret measurements before and after a process to determine if mass is conserved.+ Show more

Learning Objectives

• Explain how limited resources can lead to competition between organisms
• Describe how competition affects survival, reproduction, and population size
• Distinguish between direct and indirect competition+ Show more