Grade 3 Science Worksheets

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

• Explain how engineers help structures support forces without collapsing
• Identify features that increase stability, such as triangles and wider bases
• Describe how testing results guide design improvements for stronger structures+ Show more

Learning Objectives

• Identify safe tool-use practices that help people avoid injury and damage to materials.
• Explain why using the right tool for a task improves accuracy and results.
• Choose correct actions for an organized, safe workspace during building activities.+ Show more

Learning Objectives

• Identify how specific structures in plants and animals support their life processes.
• Understand the link between form and function through examples in nature.
• Compare different species to observe variations in structures related to survival.+ Show more

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 common structural forms (arches, beams, frames) and describe how their shapes help them support loads.
• Explain how compressive and bending forces affect different structures in real-world examples.
• Compare span, curvature, and connection types to predict strength and stability.

Learning Objectives

• Identify common structural forms (arches, beams, frames) and describe how their shapes help carry loads.
• Compare compressive and bending behavior using simple, real-world construction examples.
• Explain how span and connections affect strength and stability in basic structures.

Learning Objectives

• Define design criteria and explain how they guide engineering decisions.
• Identify success measures and constraints in a design problem.
• Describe trade-offs when multiple requirements compete.

Learning Objectives

• Understand conservation practices that help sustain soil health and fertility.
• Identify urban and rural measures to protect groundwater and reduce contamination.
• Recognize the role of vegetation and land management in conservation efforts.+ Show more

Learning Objectives

• Explain how rock weathering, deposition, and organic matter help form soil
• Identify physical, chemical, and biological processes that break rock into smaller particles
• Describe how earthworms and microbes contribute to soil structure and fertility

Learning Objectives

• Explain how group behaviors can reduce the risk of harm to individual animals during predator attacks
• Identify examples of collective defense such as schooling, flocking, watchful attention, and protective clustering
• Use evidence from a passage to determine the main idea and to answer questions about survival strategies

Learning Objectives

• Identify how an object's direction can stay the same or change over time.
• Use observations from regular time moments to describe a direction or position pattern.
• Predict a likely next position when direction changes follow a repeating pattern.

Learning Objectives

• Understand how daily and seasonal weather patterns can be represented using graphs and tables.
• Interpret graphical data to identify patterns in temperature, precipitation, and cloud cover.
• Relate observed weather trends to phenomena such as Earth's tilt and sunlight angle.+ Show more

Learning Objectives

• Identify common structural forms such as arches, beams, and frames.
• Understand how shape, span, and connection type affect strength and stability.
• Compare the properties of compression and bending in simple structural examples.+ Show more

Learning Objectives

• Explain how a force can cause an object to vibrate
• Describe how vibration size affects the loudness of sound
• Identify how sound travels through a medium

Learning Objectives

• Identify observable material properties such as color, texture, size, shape, and how materials respond to light or touch.
• Compare two material samples by describing both similarities and differences in their properties.
• Use evidence from observations to explain why properties help people describe and identify materials.

Learning Objectives

• Explain how the vibration rate of an object affects the pitch we hear
• Describe how stronger vibrations relate to loudness
• Use evidence from observations to connect heard sound characteristics to vibrating motion

Learning Objectives

• Understand how multiple forces acting at the same time affect the motion of an object.
• Identify examples of forces in different directions and their effects.
• Explain how forces that act together produce different results depending on their direction and magnitude.+ Show more

Learning Objectives

• Describe the major stages involved in seed germination, including imbibition, radicle emergence, and seedling development.
• Explain the role of seed reserves and how they support early plant growth.
• Identify environmental requirements such as moisture, temperature, and oxygen necessary for successful germination.+ Show more

Learning Objectives

• Understand methods for describing and recording how objects move using units like metres and seconds.
• Explain the concepts of distance and elapsed time as key measures of motion.
• Compare the speeds of different objects using simple numerical statements.+ Show more

Learning Objectives

• Understand how to compare the motion of objects using simple data summaries.
• Distinguish between steady-speed and changing-speed motion visually and numerically.
• Use ratios and relative language to compare speeds without complex calculations.+ Show more

Learning Objectives

• Understand the concepts of balanced and unbalanced forces on objects.
• Predict whether an object will stay at rest or change motion based on forces applied.
• Learn how net influence determines motion or stillness.+ Show more

Learning Objectives

• Understand the basic concepts of cause-and-effect relationships in physical scenarios.
• Predict outcomes of changes in influence, surface incline, or added influences.
• Apply qualitative reasoning to interpret slope tendencies, resistance, and overall effects.+ Show more

Learning Objectives

• Explain how test results provide evidence for improving a design
• Describe how engineers use small changes to improve performance toward a goal
• Identify what to adjust when outcomes do not match the design goal

Learning Objectives

• Organize and interpret information from simple tables and graphs to find patterns.
• Use evidence from data to support a claim about a scientific question.
• Explain how reasoning connects a pattern to what the data show.

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

• Understand different types of loads acting on structures such as beams, columns, and arches.
• Identify internal reactions like tension, compression, bending, and shear in simple structures.
• Learn how external forces like wind pressure, snow loads, and weight affect structural stability.+ Show more

Learning Objectives

• Understand how earth materials like rocks and soil are used for specific purposes.
• Compare the properties of rocks and soil and how they support different needs.
• Explain why different materials are chosen for construction and environmental uses.+ Show more

Learning Objectives

• Explain how an evidence-supported claim connects a question to observations or results.
• Identify evidence types such as comparisons, repeated observations, and patterns over time.
• Revise an explanation so that it matches gathered evidence instead of personal opinion.

Learning Objectives

• Understand how to generate and compare simple solutions using models and measurements.
• Evaluate different options to meet specific criteria and constraints.
• Identify advantages and trade-offs of various solutions in practical contexts.+ Show more

Learning Objectives

• Understand how inclined surfaces influence an object's tendency to move.
• Differentiate between gentle and steep inclines and their effects on motion.
• Identify factors, such as slope angle, that affect speed in inclined motion.+ Show more

Learning Objectives

• Explain what friction is and how it affects moving objects.
• Describe how surface texture and material influence resistance to motion.
• Identify real-world examples where friction plays an important role.+ Show more

Learning Objectives

• Understand the concept of force as a push or pull.
• Identify examples of forces in everyday life.
• Learn that force has both direction and strength (magnitude).+ Show more

Learning Objectives

• Understand how to plan and conduct fair tests for prototypes.
• Identify variables, failure points, and design modifications in testing.
• Record and analyze outcomes to improve project performance.+ Show more

Learning Objectives

• Identify and define design criteria and constraints for projects.
• Articulate measurable functions and success measures.
• Recognize limits such as material availability, cost, size, and time.+ Show more

Learning Objectives

• Understand that force is a push or pull that can change an object's speed or direction.
• Identify real-life examples of forces such as pushing a toy car or opening a door.
• Distinguish between contact and non-contact forces in simple terms.+ Show more

Learning Objectives

• Explain how a stronger force can create larger vibrations and louder sound
• Describe how sound depends on vibrations traveling through a medium
• Identify examples of force changing how an object vibrates+ Show more

Learning Objectives

• Understand how organisms interact and cooperate for survival.
• Identify examples of group behaviors like fighting for resources and defending against predators.
• Explain how sharing resources and cooperation increase survival chances.+ Show more

Learning Objectives

• Explain how an organism’s structures help it survive by linking form to function.
• Use evidence to describe how internal and external structures support life processes.
• Compare structural differences between species and predict how those differences affect survival and reproduction.

Learning Objectives

• Explain how thermal energy changes matter’s state (solid, liquid, gas)
• Identify melting, freezing, evaporation, and condensation as state changes
• Describe how a sample’s shape and volume can change when it changes state+ Show more

Learning Objectives

• Identify observable properties of materials such as color, texture, size, and shape.
• Compare two material samples based on their properties.
• Understand how materials respond to light and touch.+ Show more

Learning Objectives

• Explain how equal forces in opposite directions can balance to keep an object’s motion unchanged
• Predict whether an object will remain at rest or change speed or direction based on net influence
• Describe net influence as the combined effect of all forces acting at the same time

Learning Objectives

• Identify the meaning of motion in everyday situations
• Explain how friction affects an object's movement
• Find everyday examples of friction and match them to outcomes

Learning Objectives

• Explain how balanced forces keep an object’s motion the same (no change).
• Describe how unbalanced forces cause changes in speed or direction.
• Differentiate contact forces (pushes and friction) from net force effects.+ Show more

Learning Objectives

• Identify and describe the structure of roots, stems, leaves, and flowers in plants.
• Explain the functions of plant organs in growth, resource absorption, and reproduction.
• Relate plant organ characteristics to their roles in plant survival and reproduction.+ Show more

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

• Understand the concept of balanced and unbalanced influences on an object.
• Learn how to predict whether an object will remain at rest or change motion based on combined influences.
• Identify scenarios where equal and unequal forces affect an object's movement.+ Show more

Learning Objectives

• Understand how distance and time are used to describe motion.
• Learn the importance of using consistent units like metres and seconds.
• Compare different objects’ speeds using basic measurements.+ Show more