Grade 6 Science Worksheets

Learning Objectives

• Explain how heritable variation and environmental pressures can change trait frequencies in a population over generations
• Identify examples of natural selection (such as finch beaks, pollution coloration, or antibiotic resistance) and connect them to differential survival and reproduction
• Use key vocabulary (variation, heritable traits, selection, reproductive success, trait frequency) to describe how selection works

Learning Objectives

• Explain how conduction, convection, and radiation transfer thermal energy
• Identify the role of matter (solids, liquids/gases, or space) in each thermal transfer mechanism
• Use evidence from everyday examples to choose the correct thermal energy transfer process

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

• Explain how observed circuit symptoms can be used to infer likely faults using circuit topology and component behavior.
• Predict measurement patterns for series and parallel circuits and compare them to real observations during troubleshooting.
• Identify which component or connection is most likely causing incorrect readings such as unequal brightness, unexpected current, or open continuity.

Learning Objectives

• Explain how the heart’s rhythmic pumping and vessel network move blood through the body
• Compare arteries, veins, and capillaries based on structure and function
• Describe how capillaries support exchange of oxygen, nutrients, and wastes with body cells

Learning Objectives

• Describe how atoms combine to form simple molecules like H2O and NaCl.
• Use models such as ball-and-stick and space-filling representations to illustrate molecules.
• Explain the relationship between molecular structure and observable patterns of matter.+ Show more

Learning Objectives

• Explain how static charge builds up through triboelectric effects when materials contact and separate.
• Use the triboelectric series to predict which material tends to gain or lose electrons.
• Describe attraction, repulsion, grounding, and electrostatic discharge in everyday situations.+ Show more

Learning Objectives

• Understand how substances have different properties before and after a chemical change.
• Compare physical properties such as solubility, conductivity, and melting behavior.
• Identify evidence of new substance formation based on property changes.+ Show more

Learning Objectives

• Identify different types of food molecules
• Describe the functions of proteins, carbohydrates, and fats
• Understand how digestive processes break down food molecules+ Show more

Learning Objectives

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

Learning Objectives

• Explain how clouds form when water vapor cools and condenses onto tiny particles in the atmosphere.
• Describe how different precipitation types form as droplets or ice crystals grow and fall.
• Connect precipitation patterns to temperature, moisture, and atmospheric conditions.

Learning Objectives

• Explain how electronic sensors, data loggers, and digital probes collect measurements and why accurate setup matters.
• Describe how sampling rate, resolution, and units affect measurement quality and uncertainty.
• Use calibration and metadata documentation practices to improve reliability of digital data.+ Show more

Learning Objectives

• Distinguish between random error and systematic error in scientific measurements
• Identify sources of systematic shifts (instrument bias and procedural inconsistency) and increased scatter (environmental variability)
• Use replication, calibration records, and uncertainty ideas to evaluate how errors affect conclusions

Learning Objectives

• Understand what an organ is and its role in the body.
• Identify the structure and function of the heart as an organ.
• Recognize how tissues work together within organs to perform specific functions.+ Show more

Learning Objectives

• Identify common chemical indicators and connect them to evidence of chemical reactions.
• Distinguish evidence of chemical change from evidence of physical change.
• Use observations and reactant information to make stronger claims about chemical transformation.

Learning Objectives

• Identify different types of airfoil shapes and their curvature
• Understand how camber, thickness, and leading-edge curvature influence lift
• Describe the effects of angle of attack on airfoil performance+ Show more

Learning Objectives

• Recognize how electric charges attract or repel each other
• Understand basic properties of magnetic forces
• Identify factors affecting electrostatic and magnetic forces+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Identify how long-term climate data (temperature and precipitation) reveal patterns like averages and variability.
• Interpret how historical baselines help determine whether current climate trends are shifting.
• Use evidence from multiple years to support claims about climate extremes.

Learning Objectives

• Identify key weather elements and describe how they can be observed and recorded.
• Explain how changes in multiple weather elements can affect short-term weather and forecasts.
• Use weather vocabulary (temperature, precipitation, wind, cloud cover, humidity) accurately in scientific responses.

Learning Objectives

• Differentiate precision and accuracy in scientific measurements
• Choose appropriate measurement tools and units and read scales correctly
• Identify and reduce systematic and random errors using calibration and consistent procedures+ Show more

Learning Objectives

• Explain how nutrient loading can lead to eutrophication and lower dissolved oxygen in aquatic ecosystems
• Describe how chemical contaminants can cause endocrine disruption and affect amphibian populations
• Connect bioaccumulation and biomagnification to contaminant levels in food chains and top predators+ Show more

Learning Objectives

• Identify the different parts of Earth's geosphere.
• Understand how the geosphere interacts with other Earth system spheres.
• Describe processes that shape the Earth's landforms.+ Show more

Learning Objectives

• Understand which type of graph best represents different data types.
• Identify appropriate scales and axis labels to accurately display data.
• Learn how to annotate graphs to clarify dataset features.+ Show more

Learning Objectives

• Understand the concepts of voltage and current in electrical circuits.
• Learn where and how to measure voltage and current in circuits.
• Interpret typical readings to infer circuit behavior.+ Show more

Learning Objectives

• Explain how Earth’s axial tilt and its yearly orbital motion produce seasonal changes.
• Describe why opposite seasons occur in the Northern and Southern Hemispheres.
• Use solstice and equinox geometry to relate sunlight angle and day length to seasonal energy distribution.+ Show more

Learning Objectives

• Explain how the relative positions of the Sun, Earth, and Moon determine the sequence of lunar phases.
• Describe the illumination geometry that changes the visible fraction of the Moon over a cycle.
• Distinguish lunar phase appearance from eclipse circumstances using relative alignment ideas.

Learning Objectives

• Understand the standard symbols used in electrical circuits
• Identify symbols for batteries, resistors, lamps, switches, ammeters, and voltmeters
• Learn how to interpret circuit diagrams to determine circuit behavior+ Show more

Learning Objectives

• Describe the main functions of artificial satellites for Earth observation, communication, navigation, and scientific monitoring.
• Compare geostationary and polar orbits using simple features and common uses.
• Classify satellites into operational, scientific, and reconnaissance roles in nontechnical terms.

Learning Objectives

• Understand the role of decomposers in ecosystems
• Identify organisms that act as decomposers
• Explain how decomposition contributes to nutrient cycling+ Show more

Learning Objectives

• Understand what a testable prediction is in science.
• Learn how predictions connect evidence, models, and observations.
• Recognize the importance of refining models based on experimental results.+ Show more

Learning Objectives

• Explain how models help us understand science concepts while also having limitations
• Identify assumptions in a model and describe what those assumptions allow or restrict
• Use evidence to judge whether a model’s predictions match observed results+ Show more

Learning Objectives

• Understand the stages of the water cycle
• Identify the processes involved in water movement and storage
• Recognize how land cover and temperature influence the water cycle

Learning Objectives

• Differentiate primary and secondary ecological succession and describe what conditions start each process
• Explain how pioneer species change an environment and how that affects later species
• Use succession patterns to predict how biodiversity and habitat structure may change over time

Learning Objectives

• Understand the purpose and importance of protected areas
• Identify different conservation strategies
• Analyze how conservation efforts benefit ecosystems and communities

Learning Objectives

• Explain how birth and death rates, immigration, and emigration affect population size over time
• Differentiate exponential growth from logistic growth using the ideas of resources and carrying capacity
• Identify how density-dependent and density-independent factors influence populations+ Show more

Learning Objectives

• Explain how a scientific model leads to a testable prediction.
• Distinguish between evidence that supports a prediction and evidence that suggests a model needs refinement.
• Describe how uncertainty and evaluation criteria affect how scientists interpret results.

Learning Objectives

• Understand how plants absorb carbon dioxide during photosynthesis.
• Learn how carbon moves through living organisms and the environment.
• Identify the roles of producers, consumers, and decomposers in carbon cycling.+ Show more

Learning Objectives

• Distinguish between weather and climate based on their characteristics and timeframes.
• Identify examples of weather and climate phenomena from observations.
• Explain how weather and climate patterns are studied and interpreted.+ Show more

Learning Objectives

• Identify the main idea and key details about biodiversity roles.
• Explain how different species interact to support ecosystem functions.
• Use vocabulary such as keystone species, indicator species, pollination, seed dispersal, and nutrient cycling.

Learning Objectives

• Describe major ways human activities affect forests and forest ecosystems.
• Explain how habitat fragmentation and pollution can harm species and water quality.
• Identify how cumulative effects can change ecological processes over time.+ Show more

Learning Objectives

• Understand the concepts of light reflection and refraction
• Identify how light changes direction when meeting different surfaces
• Explain how lenses focus and disperse light+ Show more

Learning Objectives

• Understand how water causes erosion and shapes Earth's surface.
• Identify different landforms created by erosion and deposition.
• Describe factors that influence the rate of erosion.

Learning Objectives

• Explain diurnal rising and setting as apparent motion caused by Earth’s rotation
• Describe how Earth’s orbit around the Sun leads to apparent changes in the Sun’s position over a year
• Use the celestial sphere and horizon concepts to interpret the apparent paths of visible stars

Learning Objectives

• Understand the difference between reactants and products in a chemical reaction.
• Learn how to identify reactants and products from particle diagrams.
• Explain how the properties of substances change after a chemical reaction.+ Show more

Learning Objectives

• Understand different types of energy: potential and kinetic
• Identify examples of energy transformations in daily life
• Explain how energy changes form while the total energy remains constant

Learning Objectives

• Use a dichotomous key to identify an organism based on contrasting traits
• Construct a simple binary branch by choosing traits that split options clearly
• Evaluate identification accuracy by checking how traits vary by stage or sex

Learning Objectives

• Explain how Earth’s axial tilt changes the solar angle in each hemisphere during the year.
• Describe how Earth’s orbit around the Sun and its tilt lead to solstices and equinoxes.
• Connect latitude-dependent solar energy to differences in seasonal climate and biological cycles.