Grade 3 Science Worksheets

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

• Identify common types of simple machines and describe what kind of change they make to force or direction.
• Explain how levers, pulleys, and inclined planes can make work easier.
• Match simple machine vocabulary words with correct definitions.

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 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 how weathering, erosion, and deposition change landforms over time.
• Explain how water, wind, and ice can move soil and sediment to create features like valleys, stream channels, deltas, and hills.
• Use maps, photos, and simple models to connect observable landform changes to surface processes.

Learning Objectives

• Explain how Earth’s tilt and orbit change the height of the Sun and the length of daylight.
• Describe how changes in sunlight can lead to broad seasonal temperature patterns.
• Differentiate predictable seasonal changes from day-to-day weather variations.

Learning Objectives

• Understand environmental factors affecting material performance in structures.
• Identify causes and consequences of material decay over time.
• Learn about protective treatments and maintenance for durability.+ Show more

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

• 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 what makes a question testable and connected to evidence.
• Identify observations that relate to scientific questions.
• Learn how to select relevant evidence to support a question.+ Show more

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

• 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 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 basic needs of plants and animals for survival.
• Identify resources plants and animals obtain from their environment.
• Describe how different species meet the same needs using different body structures.+ 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 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

• Understand how Earth's rotation and tilt affect day length across seasons.
• Identify observable changes in sunlight during different times of the year.
• Connect the position of the Sun in the sky with seasonal daylight patterns.+ Show more

Learning Objectives

• Understand that light travels in straight lines.
• Describe how light moves through space and interacts with openings or edges.
• Explain observations related to light paths and regions receiving light.+ Show more

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 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

• Describe the major stages of seed germination, including imbibition, radicle emergence, hypocotyl and epicotyl growth, cotyledon function, and true leaf development.
• Explain the role of seed reserves during early growth.
• Compare germination processes in different plants such as beans, corn, and dandelions.+ Show more

Learning Objectives

• Identify the main parts of a flower and their functions.
• Explain how flowers reproduce and produce seeds.
• Describe different pollination methods and traits that attract pollinators.+ 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 forces, bending moments, and shear.
• Explain the concept of supports and foundations accepting combined loads.+ Show more

Learning Objectives

• Understand the different types of forces acting on simple structures.
• Identify load types such as dead loads and live loads.
• Relate forces like tension, compression, bending, and shear to structural elements.+ Show more

Learning Objectives

• Compare common construction materials and their properties related to strength and stability.
• Identify how environmental factors affect different materials over time.
• Understand trade-offs in choosing materials based on weight, durability, and cost.+ Show more

Learning Objectives

• Understand the key considerations in planning and evaluating simple structures.
• Identify common failure modes in structural design.
• Use basic evaluation strategies to compare stresses and material properties.+ Show more

Learning Objectives

• Describe different methods of seed dispersal and their ecological importance.
• Explain how seed morphology and dispersal timing influence plant success.
• Identify how dispersal patterns affect plant populations and habitats.+ Show more

Learning Objectives

• Understand different types of connection methods in structures and their effects on stability.
• Identify the materials and fasteners used in various connections.
• Analyze how connection design influences stress distribution and failure mechanisms.+ Show more

Learning Objectives

• Understand how soil, light, water, temperature, and nutrients affect plant growth.
• Identify human practices that modify landscape and influence plant development.
• Describe how environmental variables impact germination, growth rates, and survival.+ Show more

Learning Objectives

• Understand the processes of infiltration, percolation, capillary rise, and runoff in soil water movement.
• Identify how soil texture and structure influence water movement and retention.
• Explain how slope affects surface runoff and water distribution in different landscapes.+ 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 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

• 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

• Understand how living things are connected in a simple ecosystem.
• Identify relationships between predators, prey, plants, and animals.
• Learn how habitats support the survival of plants and animals.+ 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

• 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

• Understand how organisms are classified based on observable features.
• Identify different features such as body covering, leaf shape, number of legs, and seed coat type.
• Learn classification rules that are consistent and based on direct observation.+ 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

• Understand the different stages in an organism's life cycle.
• Identify key features and needs of organisms at each stage.
• Describe how growth and development change an organism over time.+ Show more

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

• 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

• 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 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

• 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

• 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 how simple forces cause objects to vibrate.
• Learn how vibrations produce sound and how sound travels through media.
• Identify different types of forces and their effects on objects.+ Show more

Learning Objectives

• Understand the basic types of simple machines and their functions.
• Identify examples of levers, pulleys, inclined planes, wheels and axles, wedges, and screws.
• Explain how simple machines make work easier by changing force or direction.+ Show more

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