Grade 6 Science Worksheets

Learning Objectives

• Explain how photosynthesis converts light energy into chemical energy stored in glucose and other carbon-based molecules.
• Describe the inputs and outputs of photosynthesis, including carbon dioxide, water, glucose, and oxygen.
• Compare the light-dependent reactions and the Calvin cycle in terms of what each one produces.

Learning Objectives

• Explain how matter can be modeled as particles and how atoms form elements.
• Describe how different particle compositions lead to measurable properties of substances.
• Use particle model ideas to interpret properties like density, melting point, and reactivity.

Learning Objectives

• Explain what a compound is and why compounds contain atoms of more than one element.
• Use particle models to describe how atoms of different elements are arranged in a compound.
• Describe how definite proportions in compounds help explain consistent properties and measurable outcomes.

Learning Objectives

• Explain the difference between reactants and products in a chemical reaction
• Use particle diagrams to describe how atoms are rearranged from reactants into products
• Identify evidence that a chemical reaction occurred by comparing properties of reactants and products

Learning Objectives

• Explain how cooling and saturation lead to condensation of water vapor into droplets or ice crystals
• Describe how droplets and ice crystals collect to form clouds and how cloud growth can lead to precipitation
• Connect cloud properties to energy balance by explaining how clouds reflect and absorb sunlight and radiation+ Show more

Learning Objectives

• Explain how moving water erodes sediment and transports it downstream.
• Describe how deposition happens when water energy decreases.
• Identify real-world landforms formed by erosion and deposition (such as river terraces and deltas).+ Show more

Learning Objectives

• Explain how precipitation returns water to Earth’s surface through rain, snow, sleet, and hail.
• Describe how infiltration moves water into soil moisture and can help recharge groundwater.
• Compare infiltration and runoff and relate them to gravity, landscape, vegetation, and soil type.+ Show more

Learning Objectives

• Explain how oceans absorb, store, and release heat to moderate temperature changes.
• Describe how ocean heat affects evaporation, humidity, and atmospheric stability.
• Connect ocean circulation and ocean heat content changes to possible shifts in weather patterns.+ Show more

Learning Objectives

• Explain how energy can change forms while the total energy in a system remains conserved.
• Identify common energy transformations (potential ↔ kinetic, kinetic → thermal, electrical → light/thermal).
• Use observations of motion, temperature, and brightness to infer where energy went during a transformation.

Learning Objectives

• Explain how behavioral adaptations help organisms survive in changing environments.
• Compare different behavioral strategies such as migration, hibernation, and daily timing.
• Describe how behaviors work alongside structural and physiological traits.

Learning Objectives

• Describe how structural adaptations help organisms obtain food, move efficiently, and survive predators.
• Explain how physical features relate to an organism’s habitat and survival needs.
• Use evidence from examples (shells, webbed feet, roots, camouflage) to identify the function of a trait.

Learning Objectives

• Explain how scientific knowledge improves through iterative refinement when new evidence becomes available.
• Differentiate scientific theories and laws and describe how evidence supports each.
• Identify how communication, peer evaluation, and reproducibility strengthen scientific claims.+ Show more

Learning Objectives

• Explain what makes a prediction testable by connecting it to a model or explanation.
• Use evidence to judge whether observations support or challenge a prediction.
• Describe how scientists communicate criteria for evaluating results and measurement uncertainty.

Learning Objectives

• Explain how uneven solar heating and Earth’s rotation drive global atmospheric circulation.
• Describe the roles of Hadley, Ferrel, and polar cells in forming trade winds and westerlies.
• Connect ocean currents and thermohaline circulation to heat transport and moisture distribution.+ Show more

Learning Objectives

• Explain how Earth’s rotation causes day and night.
• Describe how Earth’s 23.5° axial tilt and orbit around the Sun produce seasonal changes.
• Identify solstices and equinoxes as predictable observational events.+ Show more

Learning Objectives

• Explain how conduction, convection, and radiation transfer energy from one place to another.
• Identify which energy-transfer process best matches a real-world temperature change.
• Use evidence from observations (touching, air/fluid movement, and light emission) to justify answers.

Learning Objectives

• Explain how interference and superposition affect sound and light waves when they overlap.
• Describe constructive vs. destructive interference and how they change wave energy.
• Model how standing waves form nodes and antinodes and how resonance amplifies certain frequencies.+ Show more

Learning Objectives

• Explain how air density is affected by temperature, humidity, and altitude.
• Use air density ideas to predict how buoyancy and lift change under different atmospheric conditions.
• Interpret examples from prairie and mountain environments to describe real-world effects on airflow.

Learning Objectives

• Explain the difference between parasitic drag and induced drag and how each one changes with flight conditions.
• Identify how surface roughness, frontal area, lift generation, and wingtip vortices affect drag.
• Connect drag to thrust requirements and to the energy demands of flight.

Learning Objectives

• Explain how wing shape features (camber, thickness, and aspect ratio) affect lift and drag
• Compare high-aspect-ratio glider wings with low-aspect, robust wings used on short-field aircraft
• Use pressure-distribution ideas to describe how curvature and taper influence airflow

Learning Objectives

• Explain how Earth–Sun geometry models help predict apparent positions of the Sun and timing of events.
• Interpret how axial tilt and Earth’s orbital position affect seasonal solar angles and daylight duration.
• Use simplified models to connect predicted outcomes (sunrise, sunset, lunar phases) to observable sky patterns.

Learning Objectives

• Explain how to turn observations and data into clear scientific claims supported by evidence
• Use descriptive statistics and appropriate visuals to summarize patterns in environmental data
• Communicate evidence clearly using proper labelling, units, and data-source citations

Learning Objectives

• Explain how human activities can disrupt the cycling and distribution of water on Earth.
• Describe how dams, withdrawals, pollutants, and land-cover change affect water quality, flow patterns, sediment, and habitats.
• Connect changes in the hydrosphere to effects on other Earth systems (geosphere, biosphere, atmosphere).

Learning Objectives

• Explain how climate differs from weather and why climate changes more slowly
• Identify climate factors (latitude, altitude, distance from water, ocean currents, and winds) and connect them to regional patterns
• Use climate information to compare deserts, grasslands, and rain forests+ Show more

Learning Objectives

• Explain why energy transfer between trophic levels is not 100% efficient
• Describe how energy loss (especially as heat) limits the number of top predators in food webs
• Predict how removing a key organism can affect populations across multiple trophic levels

Learning Objectives

• Differentiate precision from accuracy and explain how repeated trials show precision.
• Choose appropriate measurement tools and units for common science tasks.
• Read measurements correctly from graduated scales (including the meniscus).+ Show more

Learning Objectives

• Describe how cells, tissues, organs, organ systems, and organisms are organized into nested levels of life
• Explain how the function of one level depends on the levels below it
• Predict how disruptions at a lower level can affect higher levels of biological organization

Learning Objectives

• Define an organ and explain how it is made of multiple tissue types working together.
• Describe how tissue interactions in an organ support coordinated functions (such as contraction, secretion, and absorption).
• Explain how organ structure relates to the specific job it performs in the body.

Learning Objectives

• Explain energy efficiency as the fraction of input energy that becomes useful output energy.
• Identify common sources of energy loss in machines, lighting, and heating systems.
• Calculate or reason about efficiency using useful output energy and total input energy.+ Show more

Learning Objectives

• Explain how light can be described as both waves and particles (photons).
• Relate wavelength and frequency to the energy carried by light.
• Describe how different wavelengths affect whether materials transmit, absorb, or reflect light.+ Show more

Learning Objectives

• Explain how sound travels as a mechanical wave through different media.
• Describe how frequency and amplitude affect pitch and loudness.
• Connect sound speed to the medium and temperature to predict how sound behaves.+ Show more

Learning Objectives

• Explain how particle arrangement differs between crystalline and amorphous solids.
• Use the particle model to predict how structure affects melting behavior and mechanical properties.
• Compare features such as brittleness, cleavage, and strength using evidence from bonding and order.

Learning Objectives

• Explain the law of conservation of mass for closed systems during physical and chemical changes.
• Distinguish between closed and open systems when interpreting changes in measured mass.
• Use particle and evidence-based reasoning to account for reactants and products in mass conservation problems.

Learning Objectives

• Explain how decomposers break down dead organic matter and recycle nutrients.
• Describe the roles of fungi, bacteria, and detritivores in nutrient cycling.
• Predict how environmental conditions (temperature, moisture, oxygen) can affect decomposition.+ Show more

Learning Objectives

• Explain how habitat fragmentation reduces available habitat and affects species survival
• Describe how fragmentation increases edge effects and limits movement between wildlife populations
• Identify human activities that cause fragmentation and propose mitigation strategies such as corridors

Learning Objectives

• Explain how invasive species are introduced and why they can spread quickly.
• Describe how invasive species can change food webs and habitats.
• Identify both ecological and economic impacts of invasive species.+ Show more

Learning Objectives

• Describe how the atmosphere is structured and how air masses form and move.
• Explain how fronts and pressure systems affect regional weather and prevailing winds.
• Connect heat transfer and the greenhouse effect to local climate patterns and seasonal trends.

Learning Objectives

• Identify minerals using physical and chemical properties such as hardness, cleavage, streak, magnetism, and acid reaction.
• Classify rocks as igneous, sedimentary, or metamorphic using diagnostic evidence like texture, grain size, and sedimentary layering.
• Explain how the rock cycle connects mineral resources to formation environments, including contact metamorphism near intrusions.

Learning Objectives

• Differentiate between renewable and nonrenewable natural resources and explain why renewal rates matter.
• Describe how natural resources form and where they are commonly found in regions.
• Analyze environmental and economic impacts of extracting and using natural resources.+ Show more

Learning Objectives

• Explain how Earth’s revolution and axial tilt cause seasons and changes in solar heating.
• Describe orbital and gravitational interactions that produce predictable sky patterns, including day/night and apparent planetary motion.
• Model the Moon’s phases and eclipses using moon-sun-earth geometry.+ Show more

Learning Objectives

• Differentiate physical and chemical changes by using observable evidence such as gas formation, precipitate formation, permanent color change, and temperature change.
• Recognize physical-change indicators such as reversible shape changes or reversible phase changes (melting/freezing/condensing).
• Apply the idea of conservation of matter by tracking how the total amount of substance is preserved during both physical and chemical changes.

Learning Objectives

• Classify matter as an element, a compound, or a mixture using composition and observable characteristics
• Distinguish homogeneous mixtures from heterogeneous mixtures based on how uniform the parts appear
• Describe how separation techniques (filtration and distillation) relate to a substance’s homogeneity

Learning Objectives

• Define systematic observation and explain how to plan data collection before measuring or recording.
• Distinguish qualitative notes from quantitative measurements and choose appropriate units.
• Use observation logs to improve accuracy by reducing bias and maintaining consistent sampling over time.+ Show more

Learning Objectives

• Identify ethical criteria such as beneficence, risk minimization, and informed consent in real scientific scenarios.
• Explain how responsible data use and privacy matter when collecting and sharing information from scientific measurements.
• Evaluate environmental and long-term ecological consequences when making decisions about scientific technologies and biotechnology.

Learning Objectives

• Identify how scientific inquiry and technology work together in common science careers
• Describe typical tasks (data collection, equipment maintenance, interpreting measurements, and communicating results) for several science jobs
• Connect science career skills to math, scientific reasoning, and technical literacy+ Show more

Learning Objectives

• Explain how the center of mass and center of pressure affect longitudinal and lateral static stability.
• Describe how design features such as dihedral angles and tail volume influence an object’s tendency to return to a steady attitude after a disturbance.
• Apply balance ideas to real contexts such as aircraft payload placement and small glider flight in changing wind.

Learning Objectives

• Explain how Earth’s rotation produces the daily cycle of day and night
• Describe how Earth’s axial tilt and orbit around the Sun change daylight duration through the year
• Use evidence from seasons and latitude to connect observed day length patterns to Earth’s orientation

Learning Objectives

• Explain what an operational definition is and why it improves clarity and comparability in science.
• Identify the key parts of an operational definition (unit, measurement method, location, and timing).
• Convert qualitative observations into measurable, quantitative descriptions using correct units and protocols.