Grade 3 Science Worksheets

Learning Objectives

• Understand how evidence strengthens scientific explanations and claims.
• Identify different types of evidence used to support claims.
• Connect specific results to reasoning statements through evidence.+ Show more

Learning Objectives

• Identify major stem parts and describe how xylem and phloem help plants transport resources.
• Explain how transpiration pull and sugar translocation support plant growth.
• Contrast herbaceous and woody stems, including vascular bundle arrangement and secondary growth.+ Show more

Learning Objectives

• Identify structural forms (arches, beams, and frames) and describe their typical uses
• Compare how curvature, span, and connections affect strength and stability
• Distinguish compressive and bending behavior in simple structural examples

Learning Objectives

• Describe how forces move from where they act to structural supports through a load path.
• Identify how trusses, beams, and columns share axial forces, shear, and bending moments.
• Explain how supports and foundations accept combined loads to help structures stay stable.

Learning Objectives

• Identify how material properties such as density, stiffness, tensile strength, compressive strength, brittleness, and corrosion resistance affect structural stability.
• Match common construction materials to key property descriptions and choose the best material for a given load or environment.
• Explain, using evidence from a short passage, how material choice involves trade-offs among strength, durability, weight, and cost.

Learning Objectives

• Explain how the properties of rocks help them be used for hard, durable surfaces and construction.
• Describe how soil properties support plant growth and water absorption.
• Compare how rocks and soil behave and explain why different materials are chosen for different jobs.

Learning Objectives

• Identify the main components of soil: mineral particles, organic matter, water, and air.
• Describe how sand, silt, and clay particle sizes affect soil texture and drainage.
• Explain how organic matter and pore space relate to aeration and nutrient availability.+ Show more

Learning Objectives

• Describe how root morphology and root architecture help plants survive in different soils and conditions.
• Compare fibrous root systems and taproot systems, including how they affect water uptake and nutrient acquisition.
• Explain how root hairs, storage roots, mycorrhizal associations, and specialized aerial roots support plant survival.+ Show more

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

• Understand how water moves through different soil types and landscapes.
• Identify processes such as infiltration, percolation, capillary rise, and runoff.
• Explain how soil texture and structure affect water distribution and drainage.+ Show more

Learning Objectives

• Understand the stages of a plant's life cycle from seed to adult.
• Identify the importance of water, air, and light in plant growth.
• Describe how adult plants produce seeds to continue the cycle.+ Show more

Learning Objectives

• Explain that many light paths can be described as straight lines.
• Identify how light behaves when it meets an opening, a barrier, or an edge.
• Use evidence from simple observations to describe where light can and cannot reach.

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

• 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

• Explain how evidence can support or challenge a model’s predictions.
• Use observations to judge whether a model’s main idea fits real results.
• Revise an explanation when evidence does not match a model.

Learning Objectives

• Explain how friction is a resistive force that can slow or stop moving objects.
• Compare sliding versus rolling to describe differences in friction effects.
• Predict how different surface textures and materials change how easily an object moves.+ Show more

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.

Learning Objectives

• Understand how organisms change as they grow.
• Identify the different needs of young and adult organisms.
• Describe how size, structures, and behaviors relate to survival needs.+ Show more

Learning Objectives

• Explain what physical adaptations are and how they help organisms survive and reproduce.
• Identify examples of physical adaptations in animals and plants and match them to the habitat or need they support.
• Describe how different environments can lead to different body features.

Learning Objectives

• Explain how a sloped surface changes an object's tendency to move by redirecting the pull of gravity.
• Compare gentle versus steep inclines by describing how the slope angle affects downward motion tendency.
• Use examples of sliding and rolling to predict how speed tendency changes with slope and surface conditions.

Learning Objectives

• Use multiple material properties (mass, volume, texture, and shape) as evidence to sort and describe materials.
• Explain how comparing two materials with shared properties—but different other properties—helps distinguish them.
• Make and justify claims about materials using observations rather than guessing.

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

• Describe how human actions can change soil quality over time
• Identify ways soil erosion, compaction, and nutrient loss can happen
• Explain how conservation practices help protect soil health+ Show more

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

• Understand the main stages of metamorphosis in animals.
• Identify the characteristics of each stage in a life cycle.
• Explain how stage changes help animals meet their needs.+ Show more

Learning Objectives

• Define force as a push or a pull
• Explain how a force can change an object's speed or direction
• Distinguish between contact forces and non-contact forces in everyday examples+ Show more

Learning Objectives

• Explain that organisms go through distinct life cycle stages (such as germination, growth, and adulthood).
• Describe how an organism’s needs change from one life cycle stage to another.
• Use examples to connect life cycle stages to how populations continue from one generation to the next.

Learning Objectives

• Identify design choices that improve strength and stability in simple structures
• Explain how intended function, load paths, supports, and span affect structural performance
• Describe common failure modes such as buckling, tension fracture, and joint slippage+ Show more

Learning Objectives

• Identify how rigid and pin connections affect stiffness and movement in structures
• Explain how fasteners and adhesives transfer loads through joints
• Describe how joint geometry and bearing area can change stress concentration+ Show more

Learning Objectives

• Explain how faster and slower vibrations affect perceived pitch
• Describe how stronger vibration motions relate to loudness
• Match vocabulary terms to definitions about sound and vibrations+ Show more

Learning Objectives

• Explain how living things in a simple ecosystem are connected through food and habitat needs.
• Identify producers, consumers, and predators/prey relationships in a shared habitat.
• Describe how animals and plants affect each other through seed spreading and growth.

Learning Objectives

• Identify the main parts of vascular plants: roots, stems, leaves, and flowers.
• Describe how roots, stems, leaves, and flowers help plants grow and reproduce.
• Connect specific structures (like taproots and woody stems) to their functions.+ Show more

Learning Objectives

• Define prototype and explain why testing is used
• Identify evidence from prototype tests (strength, fit, stability, function)
• Compare test results with the intended goal and describe how designs improve+ Show more

Learning Objectives

• Identify the main stages of metamorphosis in insects: egg, larva, pupa, and adult.
• Explain how each stage’s body form helps an organism meet its needs.
• Use vocabulary (larva, pupa, adult) to describe life cycle changes.

Learning Objectives

• Understand what a habitat is and how it provides shelter for living things.
• Identify different types of habitats and their resources.
• Describe how habitats support the needs of organisms like water, shelter, and food.+ Show more

Learning Objectives

• Understand how test results provide evidence for improving designs.
• Learn how small adjustments can change performance in measurable ways.
• Identify different types of design changes such as shape, support, and materials.+ Show more

Learning Objectives

• Identify major life cycle stages of common organisms and explain what happens in each stage.
• Describe how needs (food, shelter, and environment) can change from a young stage to an adult stage.
• Explain how life cycles help populations continue from one generation to the next.

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

• Use qualitative cause-and-effect reasoning to predict what happens when an influence changes
• Describe how slope and added influences affect the speed and direction of an object’s motion
• Explain predictions using clear directional and comparative language

Learning Objectives

• Explain how changing one influence affects an outcome using qualitative cause-and-effect reasoning
• Predict how slope incline and additional influences change the speed and direction of motion
• Use comparisons (greater/less) to justify predictions about resistive interactions

Learning Objectives

• Understand the steps involved in the engineering design process.
• Identify the importance of defining problems and proposing solutions.
• Recognize how asking questions and considering constraints aid in designing.+ Show more

Learning Objectives

• Define design criteria and constraints for a given engineering problem
• Identify desired function, measurable success measures, and limits in a design scenario
• Describe trade-offs between competing requirements when choosing a solution

Learning Objectives

• Explain how test results provide evidence to improve a design.
• Identify ways a design can be changed (shape, support, or materials) and what is being measured.
• Describe how matching outcomes to a goal helps refine a solution.

Learning Objectives

• Identify observable material properties such as color, texture, size, shape, and response to light or touch.
• Compare two samples by describing similarities and differences in their material properties.
• Use evidence from observations to explain why two materials are alike or different.

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

• Identify key parts of daily weather observations, such as temperature, precipitation, and wind.
• Use daily weather measurements to compare what happens from one day to the next.
• Explain how observable weather conditions affect daily life.

Learning Objectives

• Identify the main parts of a flower and describe their roles in reproduction.
• Explain how pollen is produced, received by the stigma, and how fertilization leads to seeds.
• Compare wind pollination and animal pollination and describe traits that help flowers interact with pollinators.+ Show more

Learning Objectives

• Explain the difference between a claim and evidence
• Use evidence to support a reasoning statement that answers a question
• Recognize patterns in observations over time and across comparisons+ Show more