Grade 4 Science Worksheets

Learning Objectives

• Explain how wave patterns can represent information using amplitude, frequency, timing, and pulses
• Identify examples of information transfer that use sound or light pulses
• Compare how signal clarity can change when interference and bandwidth limits affect transmission

Learning Objectives

• Plan a fair test by isolating one variable and keeping other conditions the same
• Collect and record quantitative data such as time, displacement, or load
• Interpret results to identify likely failure modes and choose an improved design change+ Show more

Learning Objectives

• Describe how energy can transfer when objects collide, roll, or swing.
• Connect changes in motion to energy transfer during interactions.
• Explain heat flow from warmer materials to cooler materials and relate it to temperature change.+ Show more

Learning Objectives

• Identify amplitude as the maximum displacement of a wave from its rest position
• Determine wavelength as the distance between successive crests on a wave diagram
• Use displacement-versus-position graphs to describe how changing amplitude or wavelength affects wave patterns+ Show more

Learning Objectives

• Identify map symbols and use the map scale to interpret distances on surface maps
• Explain how contour lines show elevation changes and identify steep vs. gentle slopes
• Determine drainage patterns from map features and describe how rivers deposit sediments+ Show more

Learning Objectives

• Identify examples of thermal, light, sound, and electrical energy from everyday situations
• Describe observable effects that show energy is moving
• Explain how heat, light, sound, and electrical energy transfer through matter and space+ Show more

Learning Objectives

• Describe how animals gather information using their senses.
• Explain how sensory input helps an animal decide on a response.
• Match senses to common behaviors such as moving, freezing, or seeking shelter.+ Show more

Learning Objectives

• Describe how energy is produced from natural resources such as coal, oil, natural gas, wind, and sunlight.
• Explain how burning fuels and using energy can affect air and water quality and habitats.
• Compare trade-offs between fossil fuels and renewable energy sources using examples.+ Show more

Learning Objectives

• Generate multiple possible design solutions for a simple problem.
• Compare solutions using measurable and observable criteria such as distance, speed, and stability.
• Use qualitative and quantitative evidence to choose one solution for refinement.

Learning Objectives

• Describe how waves can be reflected, absorbed, or transmitted when they meet different materials
• Use the terms reflection, absorption, and transmission to explain observable changes in wave behavior
• Compare how different materials affect wave direction and intensity

Learning Objectives

• Describe how sedimentary rock layers (strata) form and how they can be read in order.
• Identify evidence in rock strata such as fossils, buried soil horizons, cross-cutting events, and unconformities.
• Explain how fossils in different layers can show changing environments over time.+ Show more

Learning Objectives

• Identify a design problem using measurable success criteria and realistic constraints.
• List constraints such as materials, cost, and size when planning a solution.
• Use simple sketches or models to represent requirements and trade-offs among criteria.

Learning Objectives

• Identify abiotic and biotic components of a habitat.
• Explain how shelter, food, water, space, and light are habitat components.
• Distinguish habitat from niche using simple examples.+ Show more

Learning Objectives

• Explain the roles of producers, consumers, and decomposers in an ecosystem
• Describe how energy and matter move through feeding relationships and nutrient recycling
• Use ecosystem role vocabulary to predict how changes affect other organisms

Learning Objectives

• Explain how energy comes from natural resources and how the process affects land, air, and water
• Identify ways energy choices can improve or harm the environment
• Use evidence from simple texts to describe energy-resource impacts

Learning Objectives

• Explain how pulleys transmit motion in single fixed pulleys and block-and-tackle systems
• Describe how adding pulleys changes mechanical advantage and how it affects rope distance
• Identify how linkages like four-bar linkages and crank-rocker setups control motion paths

Learning Objectives

• Explain how changing string length, tension, and mass per unit length affects pitch.
• Describe how wind instruments change the effective air column to change pitch.
• Connect percussion size, tension, and stiffness to differences in frequency.+ Show more

Learning Objectives

• Identify design choices that affect mechanical advantage, size, and failure modes in simple mechanisms.
• Explain how material choice, safety margins, and tolerance fit impact performance and durability.
• Use criteria such as strength, cost, and maintenance needs to evaluate and improve a mechanism design.

Learning Objectives

• Explain the difference between criteria for success and constraints in an engineering design problem.
• Identify criteria and constraints in a real-world design scenario.
• Use criteria and constraints to decide what design changes are needed after testing.

Learning Objectives

• Describe minerals as naturally occurring, inorganic solids with a characteristic chemical composition and crystal structure
• Distinguish minerals using properties such as hardness, cleavage, fracture, streak, lustre, and colour
• Use simple field tests to identify and classify minerals, linking properties to rock formation and uses

Learning Objectives

• Explain how forces can change an object’s motion, including starting, slowing, and changing direction.
• Distinguish between contact forces (pushes and pulls) and describe the role of strength and direction.
• Use evidence from a scenario to identify what force is happening and predict the effect on motion.

Learning Objectives

• Identify producers, primary consumers, secondary consumers, and decomposers in a community
• Explain how energy and matter move through feeding roles over time
• Distinguish pollinators, predators, and prey by their roles in a food relationship+ Show more

Learning Objectives

• Identify the main stages of a plant life cycle (seed, sprout, mature plant, reproduction).
• Explain how plant structures such as roots, stems, leaves, flowers, and seeds support survival and reproduction.
• Describe how plants meet basic needs (water, nutrients, and light) during growth.+ Show more

Learning Objectives

• Identify common forms of energy (light, heat, sound, and electrical energy) and describe how each can affect matter.
• Explain how energy can transfer from one object to another and change form.
• Use evidence from real-world examples to support predictions about energy-related changes.

Learning Objectives

• Explain how structure and function help organisms survive in challenging environments.
• Describe how plant traits (like spines and tough stems) can reduce harm and water loss.
• Describe how animal sensory structures (like eyes, antennae, and whiskers) help locate resources and avoid threats.+ Show more

Learning Objectives

• Explain how evaporation and condensation are related to heating and cooling of water.
• Identify evidence of evaporation and condensation in everyday situations.
• Describe how matter changes between liquid and gas phases without becoming a new substance.

Learning Objectives

• Explain how food, water, oxygen, and temperature support growth over time.
• Describe how habitat features can affect an organism’s growth and development.
• Use evidence from a passage to answer questions about growth conditions.

Learning Objectives

• Explain how evidence supports a scientific claim by describing the reasoning connection.
• Use organized representations (tables, graphs, labeled diagrams) to communicate evidence clearly.
• Distinguish between what is known from evidence and what is being proposed or tested next.+ Show more

Learning Objectives

• Explain how evidence from observations supports a scientific claim.
• Connect patterns in data to original observations and to predicted outcomes for similar situations.
• Revise a claim using the strength and limitations of the evidence.

Learning Objectives

• Explain how scientific investigations connect a question to evidence using observations and measurements.
• Identify the role of tools and units in collecting consistent data.
• Classify common investigation practices such as using variables, recording results, and using data to support conclusions.

Learning Objectives

• Explain how predator-prey relationships can change population sizes over time
• Describe how competition for limited resources can affect growth rates and survival
• Identify mutual relationships and use population evidence to infer ecosystem connections

Learning Objectives

• Explain the roles of producers, consumers, and decomposers in a food chain.
• Describe how energy moves through an ecosystem from one organism to another.
• Model how decomposers recycle nutrients back into the environment.

Learning Objectives

• Explain how combining gears, pulleys, levers, and linkages changes force, speed, and direction in a system.
• Identify interface points and sequencing in a combined mechanism that produce a desired output.
• Describe common design trade-offs in integrated mechanisms, such as torque versus speed and simplicity versus complexity.

Learning Objectives

• Describe how water depth and soil saturation affect wetland plants and animals.
• Explain structural adaptations of wetland plants, including aerenchyma and root features.
• Compare marshes, swamps, and bogs using their dominant vegetation and hydrology.+ Show more

Learning Objectives

• Define the difference between the independent variable and the dependent variable in a controlled experiment.
• Identify which conditions must stay the same to keep a test fair.
• Explain how controlling variables helps scientists avoid misleading results.+ Show more

Learning Objectives

• Explain how testing results provide evidence about whether a solution works as expected
• Interpret recorded results to find patterns from multiple attempts
• Identify which parts of a design are effective and which parts need improvement+ Show more

Learning Objectives

• Identify common system components in a simple technological system, including a source, mechanism, and control or connector.
• Explain how energy moves through a system to produce an output from an input.
• Describe how material and component properties affect how well a system works.

Learning Objectives

• Explain how force, friction, gravity, electricity, and material properties affect a design’s performance.
• Match scientific ideas to real-world design examples.
• Use scientific vocabulary to complete sentences and questions about simple prototypes.+ Show more

Learning Objectives

• Describe criteria that show how well a prototype works.
• Identify constraints that limit materials, size, or safety for a prototype.
• Compare prototype features to criteria while following constraints.+ Show more

Learning Objectives

• Describe how observations of a real situation lead to a design problem
• Explain how a design solution can change materials, shape, or structure
• Use evidence from a scenario to choose an effective design approach+ Show more

Learning Objectives

• Explain how recording results can show a relationship between design changes and performance.
• Identify which outcome measure increases or decreases when a feature changes.
• Use patterns in data to suggest a targeted design revision.

Learning Objectives

• Explain how constraints limit design options and create tradeoffs.
• Identify examples of competing needs in a simple engineering design problem.
• Use criteria to choose the best tradeoff that still meets important limits.+ Show more

Learning Objectives

• Identify observable traits used to group living things.
• Explain why using multiple traits improves classification.
• Match classification terms to examples and definitions.+ Show more

Learning Objectives

• Identify basic survival needs of living things, including water, air or gases, food, and suitable conditions.
• Explain how limited resources can change how living things function over time.
• Match survival needs to the organisms and conditions that depend on them.

Learning Objectives

• Describe the repeating stages in an organism’s life cycle from one generation to the next.
• Identify structures that provide evidence for life cycle stages at different times in a life cycle.
• Explain how life cycle stages can differ within the same environment.

Learning Objectives

• Explain how energy moves through an ecosystem using a food chain
• Identify producers and consumers in a food chain
• Describe how changes in one population can affect other connected populations

Learning Objectives

• Describe the roles of producers, consumers, and decomposers in an ecosystem
• Explain how organisms transfer energy through feeding relationships
• Model how decomposers return nutrients to the environment+ Show more

Learning Objectives

• Explain how predators and prey can affect each other’s population sizes in an ecosystem over time.
• Describe how competition for limited resources can change populations and growth rates.
• Identify examples of mutual relationships and predict how they may affect ecosystem stability.