Grade 3 Science Worksheets

Learning Objectives

• Understand how heating and cooling cause observable phase changes in water.
• Identify examples of melting, freezing, evaporation, and condensation.
• Describe how the same material can appear in different states.+ Show more

Learning Objectives

• Explain how evidence is used to choose the best fit solution based on agreed-upon criteria for success.
• Describe tradeoffs by connecting improvements in one criterion to possible effects on another criterion.
• Acknowledge constraints (such as material limits and rules) and explain how they shape a design choice.

Learning Objectives

• Compare annual, biennial, perennial, and woody plant life cycles by timing of germination, flowering, seed set, and dormancy.
• Explain how seed banking and seasonal cues help plant populations survive through unfavorable seasons.
• Describe how environmental variability and human land-use can favor certain life histories and affect population persistence.

Learning Objectives

• Identify a repeating motion pattern using time comparisons.
• Use distance and time ideas to describe how rolling motion changes.
• Predict what might happen next in a rolling motion pattern.

Learning Objectives

• Understand different types of structural forms such as arches, beams, and frames.
• Identify how shape, span, and connection types affect the strength and stability of structures.
• Learn vocabulary related to compression, bending, and load distribution in structures.+ Show more

Learning Objectives

• Identify the main idea and key details from a short weather-data description.
• Use notes and simple data to describe daily weather changes.
• Explain how clouds and temperature can vary from day to day.

Learning Objectives

• Use evidence from a text to make a reasoned claim about a solution for flood risk.
• Compare benefits and trade-offs of hazard solutions using details from a short passage.
• Explain why a chosen design would work better during strong rain in a specific setting.

Learning Objectives

• Understand how objects reflect and absorb light.
• Identify the differences between shiny and dull surfaces.
• Observe how light interactions affect the appearance of objects.+ Show more

Learning Objectives

• Identify the main idea of a science passage about group survival.
• Find key details that explain how groups help organisms survive.
• Use evidence from the passage to answer questions about traits and resources.

Learning Objectives

• Explain how vibrations produce sound.
• Identify common sound sources and describe how they vibrate.
• Classify sound effects using cause-and-effect reasoning.

Learning Objectives

• Identify examples of water changing phases when heated or cooled.
• Explain solid, liquid, and gas changes using everyday observations.
• Match phase changes (melting, freezing, evaporation, condensation) to states of matter.

Learning Objectives

• Identify the controlled variables in a fair test.
• Explain why keeping conditions the same helps results make sense.
• Connect test results to design improvements.

Learning Objectives

• Identify sunny, rainy, windy, snowy, and stormy weather conditions
• Plot and read simple weather charts and monthly temperature graphs
• Compare weather and climate using graphic organizers+ Show more

Learning Objectives

• Identify major flower parts (sepals, petals, stamens, and pistils) and explain what each part does in reproduction
• Describe how pollen production, stigma reception, and fertilization lead to seed formation
• Compare wind pollination and animal pollination and explain how flower traits help attract pollinators+ Show more

Learning Objectives

• Make a reasoned claim about which design solution best reduces flooding or strong-wind impacts
• Use observational evidence and simple models to compare solution effectiveness under different weather scenarios
• Explain trade-offs among cost, durability, and fit to local topography

Learning Objectives

• Understand how simple classification rules help organize organisms.
• Identify observable features used in classification.
• Apply classification rules to sort new organisms.+ Show more

Learning Objectives

• Explain how a habitat provides shelter, food, water, and environmental conditions for living things.
• Identify examples of shelter in different habitats (forest floor, pond, field).
• Describe how living things in the same habitat interact when their needs overlap.

Learning Objectives

• Explain how predators and prey depend on each other within an ecosystem.
• Describe how changes in prey population can affect predator survival and behavior.
• Use evidence to support how food and shelter needs connect different organisms in a habitat.

Learning Objectives

• Describe how life cycles progress through stages from early growth to adulthood
• Compare plant life cycles (seed-to-seed) with animal life cycles (youth stages and adult stages)
• Explain how different life cycle stages help organisms survive, grow, and reproduce

Learning Objectives

• Identify common weather elements such as temperature, precipitation, cloud cover, and wind.
• Explain how weather measurements are recorded and used to look for patterns over time.
• Use weather data to answer questions about short-term conditions and possible seasonal changes.

Learning Objectives

• Explain how offspring can inherit traits from parents
• Describe variation among individuals in a population using examples
• Use simple trait data to identify inherited characteristics and variation+ Show more

Learning Objectives

• Explain how Earth’s rotation causes day and night
• Describe how different sides of Earth face the Sun during its spin
• Recognize that the daily cycle is caused by Earth’s motion, not the Sun’s motion+ Show more

Learning Objectives

• Explain how adaptations help organisms survive by matching their needs to habitat conditions.
• Describe examples of adaptations in deserts and in forests/grasslands.
• Use evidence from a habitat scenario to predict how an organism might survive when conditions change.

Learning Objectives

• Understand how balanced forces produce no change in an object's motion.
• Recognize examples of balanced and unbalanced forces in everyday life.
• Explain how unbalanced forces cause objects to start, stop, or change direction.+ Show more

Learning Objectives

• Explain that a force is a push or a pull that can change how an object moves.
• Describe how force has direction and magnitude using everyday examples.
• Distinguish between contact forces and non-contact forces in simple terms.

Learning Objectives

• Explain how groups of organisms can increase survival through shared defense, foraging, or care of young.
• Describe how competition for limited resources affects which traits help a population survive.
• Use observable traits and ecological context to support a claim about group survival.

Learning Objectives

• Describe how friction affects the motion of objects
• Explain how surface roughness and material change the strength of friction
• Identify everyday examples where friction helps or slows movement

Learning Objectives

• Describe how xylem and transpiration pull move water through stems to support growth
• Explain how phloem translocation moves sugars to different parts of a plant
• Compare herbaceous and woody stems by vascular bundle arrangement and growth over time+ Show more

Learning Objectives

• Explain how observations and measurements can be organized into clear representations like tally tables and bar graphs.
• Use correct labels and an appropriate scale to make data in a representation easier to compare.
• Identify patterns and comparisons in data representations and explain what they show.

Learning Objectives

• Explain how temperature and water vapor help form clouds
• Describe how condensation can lead to precipitation (rain or snow)
• Use observations of cloudiness and timing to connect weather to water’s changing forms

Learning Objectives

• Understand how predators and prey depend on each other within an ecosystem.
• Identify the effects of changes in prey populations on predator survival.
• Explain the relationship between habitat conditions, food sources, and animal survival.+ Show more

Learning Objectives

• Explain what a force is and that forces can act by touching or without touching.
• Identify how balanced forces keep an object’s motion the same.
• Describe how unbalanced forces change an object’s motion.

Learning Objectives

• Explain how Earth’s rotation causes day and night.
• Describe how sunlight reaches the side of Earth facing the Sun.
• Recognize that Earth’s motion, not the Sun’s motion, creates the daily cycle.

Learning Objectives

• Explain why shadows form when objects block light.
• Identify how opaque and transparent materials affect what you can see.
• Use evidence from a diagram to describe where light goes and where shadows form.

Learning Objectives

• Identify patterns in motion by comparing distance and time for an object
• Describe how friction can cause objects to slow down and how slopes can change speed
• Use simple measurements to make predictions about future motion

Learning Objectives

• Identify inherited traits in a family by reading and observing similarities.
• Describe how variation can still happen even when traits are inherited.

Learning Objectives

• Understand how increasing influences affect outcomes.
• Recognize how surface inclines alter the speed of objects.
• Predict effects when multiple influences are applied simultaneously.+ Show more

Learning Objectives

• Identify patterns in an object’s motion over equal time intervals.
• Use a pattern to predict what happens next in an object’s position or distance.
• Explain how repeated measurements support motion predictions.

Learning Objectives

• Use cause-and-effect reasoning to predict how changes in a situation can change outcomes.
• Explain directional influences (increase/decrease) and speed-related consequences using scientific language.
• Compare two scenarios and justify which one will produce a faster, slower, or different result.+ Show more

Learning Objectives

• Explain how fair tests control variables to learn whether a prototype change improves results.
• Identify possible failure modes in a prototype and describe how test outcomes guide design modifications.
• Use recorded observations to compare test results from the original model and an improved version.

Learning Objectives

• Understand different state changes of matter when heating or cooling.
• Identify features that indicate whether a sample is solid, liquid, or gas.
• Describe the processes of melting, freezing, evaporation, and condensation.+ Show more

Learning Objectives

• Explain how an organism’s survival needs can change as it grows and develops.
• Describe examples of changing needs in plants and animals at different life stages.
• Use evidence from a text to identify relationships between growth and resources.

Learning Objectives

• Identify observable inherited traits in plants and animals and describe how they pass from parents to offspring.
• Use evidence from multiple generations to explain why offspring resemble their parents.
• Distinguish between shared traits in a group and differences between individual organisms.

Learning Objectives

• Explain how soil pore size and structure affect water retention and drainage
• Describe how soil aeration influences oxygen supply to plant roots
• Compare loam, clay, and sandy soils using retention, drainage, and aeration+ Show more

Learning Objectives

• Explain how changing sunlight across the year leads to predictable seasonal patterns in temperature and precipitation.
• Describe how atmospheric processes connect longer-term seasonal trends to typical weather outcomes.
• Distinguish predictable seasonal patterns from short-term weather events that can vary.

Learning Objectives

• Explain that living things grow through predictable life cycle stages.
• Identify common stages such as egg, juvenile, and adult in familiar organisms.
• Describe how life cycle patterns connect one generation to the next.

Learning Objectives

• Explain what balanced forces are and how they affect an object's motion.
• Identify examples of balanced forces in everyday situations.
• Describe how net force relates to whether an object stays at rest or moves steadily.

Learning Objectives

• Describe how soil, light, water, temperature, and nutrients affect plant germination and growth
• Explain how human practices and environmental stresses can change where plants survive and establish
• Use evidence from scenarios to predict how a change in conditions may affect plant survival