Grade 7 Science Worksheets

Learning Objectives

• Explain the concept of heat capacity and specific heat
• Identify factors that influence heat capacity in everyday objects
• Apply the idea of heat capacity to real-world heating scenarios

Learning Objectives

• Describe how ecological organization moves from individuals to populations, communities, and ecosystems
• Identify patterns that appear at higher levels that cannot be explained by single organisms alone
• Compare properties of populations, communities, and ecosystems using a local river example+ Show more

Learning Objectives

• Explain how disturbances like fire, floods, landslides, and windthrow change habitats and affect species populations.
• Describe how frequency, intensity, and spatial scale influence whether ecosystems recover or experience long-term declines.
• Use examples of disturbance-adapted species and less-adapted species to predict recovery patterns and community change.+ Show more

Learning Objectives

• Understand different types of organism interactions such as competition, predation, and symbiosis
• Identify examples of competition, predation, and symbiosis in nature
• Analyze how these interactions influence populations and resource availability

Learning Objectives

• Explain how particle arrangement, spacing, and motion differ in solids, liquids, and gases.
• Predict how temperature and pressure can cause substances to change state.
• Use observable properties to classify common materials by state of matter.

Learning Objectives

• Identify measurable design criteria and explicit constraints in a design problem.
• Explain how trade-offs can affect multiple requirements in engineering design.
• Connect a solution plan to goals, constraints, and evidence of improvement.+ Show more

Learning Objectives

• Understand the relationship between living organisms and non-living elements in ecosystems.
• Identify how sunlight, soil, water, temperature, and topography influence plant and animal communities.
• Explain cause-and-effect links that shape ecosystem structure across regional environments.+ Show more

Learning Objectives

• Describe how natural climate records (ice cores, sediment layers, and tree rings) can be used to infer past temperature and precipitation.
• Explain how modern instruments provide evidence of recent climate trends.
• Identify major climate drivers over time and describe how they can change Earth’s energy balance and circulation.

Learning Objectives

• Understand how weathering breaks down rocks into sediments.
• Identify different depositional environments.
• Describe the process of lithification.+ Show more

Learning Objectives

• Describe how a fulcrum position changes effort distance in a lever
• Explain how pulley systems can change effort and direction to produce mechanical advantage
• Calculate ideal mechanical advantage using simple ratios for common lever and pulley setups+ Show more

Learning Objectives

• Identify and describe various physical properties of substances.
• Understand how properties like density, melting point, and solubility help characterize materials.
• Use observable behaviors to infer properties of unknown substances.+ Show more

Learning Objectives

• Explain the different methods of heat transfer: conduction, convection, and radiation.
• Identify real-world examples of heat transfer processes.
• Describe how temperature differences drive heat flow.+ Show more

Learning Objectives

• Explain how model evaluation compares predictions to evidence
• Identify common reasons a model may fail, such as incorrect assumptions or missing factors
• Describe how changing input parameters in a simulation can reveal which assumptions matter most+ Show more

Learning Objectives

• Describe how energy is involved in chemical reactions.
• Differentiate between exothermic and endothermic reactions based on energy changes.
• Explain the link between energy transfer and bond formation or breaking in chemical processes.+ Show more

Learning Objectives

• Understand how material properties, transfer modes, and conservation principles combine to evaluate energy performance.
• Analyze energy budgets including conduction, convection, radiation, storage, and conversion losses.
• Interpret numerical and graphical data to compare system efficiencies and responses.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the importance of habitat preservation in conservation
• Identify various strategies used to protect ecosystems
• Analyze the impact of invasive species and habitat restoration+ Show more

Learning Objectives

• Explain what physical properties are and how they can be measured to help identify substances.
• Describe density, solubility, melting point, and boiling point and use these ideas to predict comparisons.
• Use electrical conductivity and hardness as observable physical properties when sorting materials.

Learning Objectives

• Understand the concept of conduction as a heat transfer process
• Identify examples of conduction in everyday objects
• Describe how heat moves from warmer to cooler regions through conduction

Learning Objectives

• Explain how invasive species spread beyond their native range and why they can grow quickly
• Describe ecological effects of invasive species on food webs, energy flow, and nutrient cycling
• Evaluate how invasive species can reduce biodiversity and change habitats

Learning Objectives

• Explain how convection transports heat through fluid motion driven by density changes
• Compare natural convection and forced convection using real-world examples (atmosphere, reservoirs, HVAC)
• Use boundary layer and buoyancy ideas to describe flow patterns and seasonal temperature changes

Learning Objectives

• Explain how erosion detaches sediment and how transport moves sediment by water, wind, ice, and gravity
• Describe how transport energy and distance affect grain size and sorting in sedimentary records
• Interpret landscape history using clues such as graded bedding, till, moraines, loess, and dunes

Learning Objectives

• Explain how physical, chemical, and biological weathering break down rock at Earth’s surface.
• Describe how freeze-thaw cycles, thermal expansion, and abrasion contribute to physical weathering.
• Connect oxidation, hydrolysis, and dissolution to chemical changes in minerals.+ Show more

Learning Objectives

• Understand how plate tectonics cause earthquakes and volcanic activity.
• Identify evidence of geologic processes like faults and lava flows.
• Explain how Earth's surface changes over time through natural processes.

Learning Objectives

• Explain how system models show energy inputs, useful outputs, and waste heat using energy flow diagrams or Sankey-style arrows.
• Use energy accounting ideas to describe conservation of energy in mechanical and industrial systems.
• Identify major sources of energy loss and describe how conversion efficiency is determined from an energy flow.+ Show more

Learning Objectives

• Use physical and chemical properties to predict whether a substance is likely to react in a given situation.
• Identify evidence of chemical change (new substances formed) and relate it to energy changes.
• Apply property trends such as reactivity with oxygen, acid–base behavior, flammability, and solubility to anticipate products.

Learning Objectives

• Understand how different building materials behave under compression, tension, and bending.
• Compare timber, steel, and reinforced concrete regarding strength, stiffness, and environmental resilience.
• Analyze how material behavior influences long-term performance and maintenance in local climates.+ Show more

Learning Objectives

• Explain how internal structures and external features help organisms survive, grow, and reproduce
• Identify how different traits increase an organism’s chance of obtaining resources and avoiding danger
• Use functional relationships to describe how structures support transport, digestion, and coordination

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Explain conservation of mass in a closed system during physical and chemical changes.
• Use reactants and products to predict mass relationships in sealed-container reactions.
• Interpret experimental observations to support the idea that atoms are conserved.

Learning Objectives

• Understand different ecological monitoring techniques
• Recognize the importance of consistent data collection
• Learn how monitoring data is used to track ecological changes

Learning Objectives

• Explain how sound waves affect loudness and how distance changes perceived intensity.
• Describe how reflection and absorption of sound influence echoes and intensity.
• Connect amplitude and frequency to the brain’s perception of volume (loudness) and pitch.

Learning Objectives

• Explain how common anthropogenic pollutants (nutrient runoff, hydrocarbons, and airborne deposition) move through terrestrial and aquatic ecosystems.
• Describe measurable ecological effects of pollution, including organism health changes and food web disruption.
• Use cause-and-effect reasoning to connect pollutant sources to ecosystem chemistry and community-level outcomes.

Learning Objectives

• Describe how magma forms through different geological processes such as decompression, heat transfer, and volatile addition.
• Explain how cooling rates influence the texture and mineral composition of igneous rocks.
• Identify the roles of fractional crystallization and magma mixing in producing diverse igneous rock types.+ Show more

Learning Objectives

• Understand the formation of shield volcanoes and their features.
• Identify different types of volcanic landforms based on magma composition and eruption style.
• Learn how tectonic settings influence volcanic activity and landform creation.

Learning Objectives

• Understand the purpose of control methods in experiments.
• Identify different strategies used to reduce external influences.
• Explain how comparison conditions improve experiment credibility.+ Show more

Learning Objectives

• Understand how to express thermal processes through numerical representations of energy transfer.
• Calculate energy transfer using specific heat, mass, and temperature change in Joules and kilojoules.
• Recognize practical examples of heat transfer, such as heating water, melting snow, and warming air in greenhouses.+ Show more

Learning Objectives

• Define ecosystem resilience and describe how disturbances change ecosystems
• Explain how population changes and community relationships can indicate stability
• Predict how recovery may differ when key species or nutrient cycles are disrupted

Learning Objectives

• Explain how energy flows through interconnected feeding relationships in a food web
• Identify producers, consumers, and decomposers and describe their roles in trophic connections
• Predict how adding or removing a species can change dependencies and stability in an ecosystem

Learning Objectives

• Understand the concept of mass conservation in closed systems during chemical changes.
• Identify factors that influence the accuracy of mass measurements and their impact on conservation assessments.
• Recognize the importance of including all phases and accounting for gases or dissolved species when measuring mass.+ Show more

Learning Objectives

• Understand how conservation status is assessed for different species.
• Identify key criteria used in evaluating conservation risk.
• Interpret information about threats, recovery potential, and population trends.+ Show more

Learning Objectives

• Identify the main idea and key details about ecological inquiry.
• Explain what makes an ecological question testable.
• Describe measurable variables and how evidence supports conclusions.

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves
• Identify factors that affect net radiative heating
• Use emissivity and absorptivity ideas to predict heating and cooling patterns

Learning Objectives

• Describe how material properties such as strength, stiffness, density, and durability affect load-bearing design
• Explain how materials behave under compression, tension, and bending and why that matters for long-term performance
• Evaluate material choices for frost and snow resilience in a Canadian prairie climate

Learning Objectives

• Explain how the rock cycle connects tectonics, magmatism, weathering, erosion, burial, and metamorphism.
• Describe how plate motions create igneous rocks and how surface processes later recycle them into sediments.
• Use cause-and-effect reasoning to trace how rocks change environments over geologic time.+ Show more

Learning Objectives

• Understand how water movement in hydroelectric systems converts to electrical energy
• Identify different forms of energy transfer and losses in energy systems
• Interpret energy flow diagrams and Sankey diagrams+ Show more

Learning Objectives

• Explain how data tables use consistent units and meaningful labels to communicate measurements clearly.
• Read and interpret graphs by using axis labels, scale, and category information to identify patterns.
• Compare groups and describe relationships using trends, clusters, and the direction/shape of patterns rather than isolated values.

Learning Objectives

• Explain the main idea of conduction in solids
• Describe how particle motion transfers kinetic energy during conduction
• Use key vocabulary (kinetic energy, particles, conductivity, interface) to answer questions about heat flow+ Show more