Grade 3 Science Worksheets

Learning Objectives

• Compare motions by interpreting distance-over-time information.
• Identify steady-speed motion versus changing-speed motion using simple data.
• Use numerical ratios and relative language (faster, slower, same speed) to describe which object moves more quickly.

Learning Objectives

• Identify everyday examples of water phase changes caused by heating and cooling
• Explain how melting, freezing, evaporation, and condensation describe changes between states of matter
• Connect temperature/heat energy to visible changes in water (solid, liquid, gas)

Learning Objectives

• Explain what a habitat is and how it provides shelter, food, and water for living things.
• Describe how different habitats (forest, pond, field) meet the needs of organisms.
• Identify the role of physical surroundings and resources in helping organisms survive.+ Show more

Learning Objectives

• Explain how temperature changes can affect evaporation and the formation of clouds.
• Describe how precipitation (rain and snow) helps show wet and dry weather patterns.
• Compare temperature and rainfall across months to understand seasonal changes.

Learning Objectives

• Explain what unbalanced forces are and how they change an object’s motion
• Identify how pushes and pulls in opposite directions affect speed and direction
• Use evidence from simple examples to describe cause and effect in motion

Learning Objectives

• Explain how adding forces (net force) affects an object's motion.
• Determine whether opposite forces cancel or add by comparing their directions and strengths.
• Use everyday examples (pushes, tug-of-war, stacked pushes) to predict motion changes.

Learning Objectives

• Explain how vibration rate affects perceived pitch (higher rate = higher pitch).
• Describe how vibration strength relates to loudness.
• Use evidence from observations to connect sound characteristics to vibrating motion.

Learning Objectives

• Explain that Earth’s rotation on its axis causes day and night.
• Identify which side of Earth faces the Sun during daytime and which side faces away during nighttime.
• Describe how the daily light pattern repeats regularly because Earth keeps rotating.

Learning Objectives

• Explain how weather can change from day to day even within the same season.
• Describe how precipitation and temperature may arrive earlier or later than expected.
• Differentiate between weather (day-to-day conditions) and climate (typical patterns over time).+ Show more

Learning Objectives

• Explain how water changes form during the water cycle (vapor, liquid, solid).
• Describe how cooling and heating affect evaporation, condensation, and precipitation.
• Identify connections between clouds and Earth’s surface in the water cycle.

Learning Objectives

• Describe how thermal energy causes matter to change state (solid, liquid, gas).
• Identify state-change processes such as melting, freezing, evaporation, and condensation.
• Explain how state changes can be observed through shape and whether matter flows.

Learning Objectives

• Identify how load bearing structures keep their shape when forces push or pull on them.
• Explain how design features like triangles, wider bases, and cross-bracing increase stability.
• Use testing evidence (bending, alignment, and support) to improve a structure design.

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

• Explain how group living can help animals survive using observable traits and ecological context.
• Describe how organisms in a group may share resources such as food, shelter, or protection.
• Use evidence-based reasoning to support claims about cooperation and competition in nature.+ Show more

Learning Objectives

• Explain how intended function, load paths, and support locations affect the strength and stability of simple structures.
• Describe how material compatibility and connection quality influence how loads transfer through a structure.
• Use simple evaluation strategies to compare expected forces with material limits and identify common failure modes.

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

• 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

• Explain how animals in groups can find food more successfully than alone
• Describe examples of cooperative foraging using signals or coordinated movement
• Use scientific words such as forage, signal, and coordinated to answer questions+ 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 Earth’s rotation creates daily day and night cycles.
• Describe how the amount of daylight changes across the year due to changes in the Sun’s position.
• Connect seasonal changes to observable differences in day length.

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

• 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

• 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

• Explain what makes a science question testable using evidence.
• Identify what observations and measurements can serve as evidence for a question.
• Match a claim to the type of evidence that could support it.

Learning Objectives

• Understand how clouds form through condensation and water vapor.
• Identify the relationship between temperature, evaporation, and precipitation.
• Describe different types of precipitation such as rain and snow.+ Show more

Learning Objectives

• Understand the importance of safe practices when using tools.
• Identify correct handling and organization of tools to prevent accidents.
• Learn simple guidelines for safe tool operation and workspace management.+ Show more

Learning Objectives

• Understand how objects block light to form shadows.
• Identify materials as opaque, transparent, or translucent based on light transmission.
• Explain how different materials affect what can be seen through them.+ Show more

Learning Objectives

• Understand how Earth's rotation causes day and night.
• Identify the role of the Sun's light in creating daytime and nighttime.
• Explain that Earth's motion, not the Sun's movement, causes the daily cycle.

Learning Objectives

• Understand the importance of load bearing structures in engineering.
• Identify strong shapes and connections used in structures.
• Describe how structures distribute weight to stay stable.+ Show more

Learning Objectives

• Understand how vibration speed affects the pitch of sound.
• Identify the relationship between vibration strength and loudness.
• Explain how vibrations relate to perceived sound characteristics.+ Show more

Learning Objectives

• Understand that sound is produced by vibrations.
• Identify different sources of sound that involve vibrations.
• Explain how vibrations travel through a medium to produce sound.+ Show more

Learning Objectives

• Understand how different properties can be used to sort and describe materials.
• Identify and compare properties such as mass, volume, texture, and shape.
• Use evidence to distinguish between different materials in everyday contexts.+ Show more

Learning Objectives

• Compare and contrast rocks and soil based on appearance and behavior.
• Identify different characteristics of rocks and soil, such as texture, size, and composition.
• Understand how rocks and soil respond to pressure and can be separated or shaped.+ Show more

Learning Objectives

• Describe observable weather conditions such as temperature, precipitation, and wind.
• Compare weather patterns across different days.
• Identify how weather factors affect daily life.+ Show more

Learning Objectives

• Understand the steps of the water cycle and how water changes form.
• Identify the processes of evaporation, condensation, and precipitation.
• Explain how water moves between air, clouds, and ground.+ Show more

Learning Objectives

• Understand how soil properties affect water retention, drainage, and aeration in plant growth.
• Identify differences among loam, clay, and sandy soils and their suitability for plants.
• Learn about pore size, soil structure, and their impact on water movement and oxygen supply to roots.+ Show more

Learning Objectives

• Compare different life cycle patterns among plants such as annuals, biennials, perennials, and woody plants.
• Describe strategies like seed banking and seasonal cues that influence plant development and survival.
• Explain how environmental factors and human land use affect reproductive timing and plant population persistence.+ Show more

Learning Objectives

• Understand how forces travel through structural systems from points of application to supports.
• Identify how trusses, beams, and columns distribute forces such as axial loads, bending moments, and shear.
• Explain the importance of clear load paths for maintaining stability under different conditions.+ Show more

Learning Objectives

• Understand how a sloped surface affects an object's tendency to move.
• Identify how slope steepness influences speed of sliding or rolling objects.
• Recognize the difference in motion on gentle versus steep inclines.+ Show more

Learning Objectives

• Identify the main parts of a flower and their roles in reproduction.
• Explain how pollen is produced and received for fertilization.
• Differentiate between wind pollination and animal pollination with examples.+ Show more

Learning Objectives

• Understand the key concepts of simple structure design, including strength and stability.
• Identify common failure modes and ways to prevent them.
• Evaluate design choices based on load paths, support positions, and material properties.+ Show more