Grade 3 Science Worksheets

Learning Objectives

• Explain how to compare two solutions using the same criteria and constraints.
• Identify observable evidence that shows which solution meets criteria better.
• Describe which features likely caused a solution to perform better or worse.+ Show more

Learning Objectives

• Identify the main stages in a life cycle model and describe their order.
• Explain how stage characteristics help an organism meet survival needs.
• Compare life cycle models by describing similarities (repeating pattern) and differences (stage length or transitions).+ Show more

Learning Objectives

• Explain how friction is a force that opposes motion between surfaces in contact
• Describe how surface roughness affects how quickly an object slows down
• Predict what happens to distance traveled when friction changes

Learning Objectives

• Explain how gases spread out to fill the space of their container.
• Describe how gas behavior changes when the container space changes.
• Identify key properties of gases, including having no fixed shape and taking up the container’s volume.+ Show more

Learning Objectives

• Identify common external and internal body structures in plants and animals
• Match structures to the functions they help with for survival, growth, and reproduction
• Use models or simple drawings to show how different structures work together

Learning Objectives

• Identify common external structures in plants and animals and explain how they help living things survive.
• Describe how internal structures (such as hearts and digestive tracts) support body functions.
• Use a model or drawing to show how structures are arranged and connected to body systems.

Learning Objectives

• Identify an external structure on an animal or plant.
• Explain what the structure does in the life of the organism.
• Use clues from a reading passage to answer science questions.

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

• Identify pushes and pulls as forces that act on objects with a direction
• Describe how forces can start, stop, or change motion
• Use arrows and basic ideas of net force to predict what happens to an object

Learning Objectives

• Explain how animal body structures help them survive in their environments.
• Identify how body coverings, limbs, and other protective features support movement and safety.
• Use evidence from short texts to describe the main idea about adaptations.

Learning Objectives

• Explain how animals form groups (flocks, herds, schools, or colonies) to improve survival.
• Describe how group behavior can reduce individual risk during threats.
• Use evidence from a short passage to identify main ideas about group survival behaviors.

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 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

• Explain how a net force can change an object’s speed and/or direction
• Use observations of motion to describe patterns of speeding up, slowing down, and turning
• Match key vocabulary (force, direction, speed, motion) to correct definitions

Learning Objectives

• Explain how pushes and pulls affect an object’s motion.
• Determine how net force changes speed and/or direction.
• Use the idea of zero net force to describe when motion stays the same.

Learning Objectives

• Explain how mixture properties reflect the contributions of each component
• Identify evidence that components keep their own properties in a mixture
• Describe observable changes in mixtures without creating a new substance+ Show more

Learning Objectives

• Identify living components of an ecosystem (producers, consumers, and decomposers).
• Describe how nonliving factors (sunlight, air, water, soil, temperature, moisture, and space) affect organisms.
• Explain how changes in one part of an ecosystem can affect other organisms.

Learning Objectives

• Explain how seasons affect temperature, precipitation, and storms over the year.
• Describe how seasonal cycles can be similar overall but not identical every year.
• Use evidence from weather patterns to make simple predictions about what a season may bring.

Learning Objectives

• Identify criteria for success and explain how they can be tested using observable results.
• Recognize constraints and describe how they limit materials, time, or cost in a design problem.
• Sort statements into criteria or constraints and use both to evaluate and improve a solution.

Learning Objectives

• Explain the difference between weather and climate using long-term averages and ranges
• Describe how scientists use many years of data to find typical temperature and precipitation conditions
• Identify how variability and extremes can be included using ranges, not just one year’s results+ Show more

Learning Objectives

• Identify key flower parts and explain how they help produce seeds.
• Describe how fruit forms to protect seeds and help with dispersal.
• Explain why seeds are important for starting new plant life cycles.

Learning Objectives

• Describe how plant roots absorb water and dissolved minerals from soil
• Explain how different root shapes help plants survive in different environments
• Identify how roots support anchoring and help transport materials to stems and leaves+ Show more

Learning Objectives

• Identify observable properties of common materials (color, texture, hardness, and whether they are solid or liquid).
• Explain how a substance’s properties can help distinguish it from other substances.
• Describe how some properties stay the same even when a material changes state.+ Show more

Learning Objectives

• Generate multiple distinct solution options for the same design problem
• Explain how different structures and materials can affect outcomes like stability and impact resistance
• Use criteria (constraints and desired outcomes) to evaluate and improve solution ideas

Learning Objectives

• Identify the parts of a simple design problem statement: a real need or want, the situation, the goal, and success criteria.
• Distinguish between describing what must change (goal and success) and choosing specific materials or exact measurements.
• Create and evaluate clear design problem statements using plain, targeted language.

Learning Objectives

• Explain how magnets interact through forces that act at a distance.
• Distinguish magnetic forces from contact forces such as pushing and friction.
• Describe how magnetic interaction strength changes with distance and pole orientation.+ Show more

Learning Objectives

• Identify the major stages of metamorphosis in monarch/butterflies and frogs
• Explain how an animal’s structures and behaviors change from one stage to the next
• Use science vocabulary related to life cycles to answer questions accurately+ Show more

Learning Objectives

• Describe the difference between magnetic and contact forces.
• Identify examples of magnetic attraction and repulsion.
• Explain how distance and pole orientation affect magnetic forces.+ Show more

Learning Objectives

• Identify whether an interaction is magnetic (at a distance) or a contact interaction (touching).
• Explain how magnet poles can cause attraction or repulsion.
• Describe how changing distance can affect the strength of magnetic attraction or repulsion.+ Show more

Learning Objectives

• Describe how magnets can attract or repel each other without touching
• Distinguish magnetic forces from contact forces such as pushes and friction
• Explain how distance and pole orientation affect the strength of magnetic attraction or repulsion+ Show more

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

• 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

• Identify different design solutions that reduce weather-related hazards.
• Make reasoned claims about the effectiveness of hazard mitigation strategies.
• Use observational evidence and models to compare hazard mitigation options.+ Show more

Learning Objectives

• Make reasoned claims about how design solutions reduce impacts of weather-related hazards.
• Use observational evidence, simple models, and community-style maps to compare the effectiveness of hazard solutions.
• Explain trade-offs (cost, durability, and local topography) when choosing among hazard-reduction designs.

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

• Generate two or more solution ideas using simple sketches or models.
• Compare solutions using measurements and stated criteria.
• Explain trade-offs by citing evidence from a model or test.

Learning Objectives

• Explain how pitch is connected to the speed of vibrations.
• Explain how loudness is connected to the strength of vibrations.
• Use examples (strings, drums) to distinguish pitch from loudness.

Learning Objectives

• Generate multiple simple solution ideas for a science design problem using sketches or models.
• Compare solutions by using measurements and evidence from tests.
• Identify advantages and trade-offs by matching outcomes to given criteria and constraints.+ Show more

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

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

Learning Objectives

• Explain how offspring inherit traits from parents
• Describe how individuals in a population can show variation in inherited traits
• Distinguish inherited traits from traits influenced by the environment+ Show more

Learning Objectives

• Understand how offspring inherit traits from parents.
• Identify observable variations among individuals.
• Interpret data from family traits and trait charts.+ Show more

Learning Objectives

• Identify how speed changes over time using distance measurements at regular intervals
• Explain the difference between constant speed and changing speed patterns
• Use a distance-over-time pattern to make predictions about future positions

Learning Objectives

• Explain how energy and matter move through an ecosystem using producers, consumers, and decomposers.
• Identify relationships in simple food chains and describe how changes in one organism can affect others.
• Use evidence from a passage to determine main ideas and evaluate statements about food relationships.

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

• Explain how scientists use measurements to compare properties of matter.
• Identify what mass, volume, temperature, and size measurements describe.
• Use appropriate units and measurement tools to support fair comparisons.

Learning Objectives

• Explain that combining materials can create a new substance with new properties.
• Identify evidence of new substance formation such as color change, new smell, temperature change, or new behavior.
• Compare initial and final materials to decide whether a chemical change likely occurred.

Learning Objectives

• Explain how energy changes cause matter to change state (solid, liquid, gas).
• Describe melting, freezing, evaporation, and condensation as physical changes.
• Use temperature information to predict which state change is most likely.