Grade 7 Science Worksheets

Learning Objectives

• Explain how physical and biological disturbances can change population sizes and community composition.
• Describe mechanisms of resilience, resistance, and ecological succession during ecosystem recovery.
• Interpret observations and longitudinal data to connect specific abiotic or biotic changes to population trends.+ Show more

Learning Objectives

• Explain how kinetic energy depends on mass and speed
• Interpret proportional patterns in kinetic energy graphs
• Relate stored potential energy to future motion through energy conversion

Learning Objectives

• Compare distances and sizes in space using astronomical units, planetary diameters, and light-years
• Interpret orders of magnitude and explain how scale affects what we can observe
• Use scaled representations to reason about relative positions of the Sun, planets, and nearby stars

Learning Objectives

• Explain how potential energy depends on an object’s position or arrangement in a system
• Compare gravitational, elastic, and magnetic potential energy using real-world examples
• Describe how changes in configuration can transform stored energy into motion or work

Learning Objectives

• Explain how evidence such as seafloor structures, earthquakes, and volcanoes supports the idea of moving tectonic plates.
• Use fossil distributions and continental margin features to infer past continental positions.
• Describe how magnetic striping and mountain building relate to plate motion and paleogeographic reconstructions.

Learning Objectives

• Explain how synthetic materials can be produced from natural resources by outlining key steps such as feedstock selection, polymerization, and refining.
• Describe how chemical composition changes during processing and how those changes affect material properties like strength, flexibility, and durability.
• Compare examples (polyethylene, PET, nylon, and metals from ores) and discuss trade-offs involving recyclability and environmental impact.

Learning Objectives

• Explain how weathering, erosion, transport, and deposition change Earth’s surface over short and long timescales.
• Differentiate mechanical and chemical weathering and identify their likely effects on landforms and soils.
• Describe how water, wind, ice, and gravity contribute to shaping features such as canyons, coastal cliffs, moraines, and deltas.

Learning Objectives

• Analyze patterns in the fossil record, including diversity, extinction events, and morphological change over geologic time
• Explain how stratigraphy and index fossils support correlation and inferences about ancestry
• Describe how transitional fossils provide evidence for evolutionary continuity

Learning Objectives

• Explain how gravity, electric, and magnetic forces can act at a distance without direct contact.
• Describe the qualitative relationship between gravity and mass and between gravity and distance.
• Identify when electric and magnetic forces can be attractive or repulsive using real-world examples.

Learning Objectives

• Explain how scientists use environmental indicators to monitor human impacts on land, water, and air.
• Describe how remote sensing and land-cover data can reveal changes over time.
• Evaluate mitigation strategies and trade-offs between economic needs and long-term ecosystem resilience.

Learning Objectives

• Interpret balanced chemical equations to determine the mole-to-mole relationships between reactants and products.
• Use ratio reasoning and unit consistency to convert between amounts of substances during chemical transformations.
• Scale reactant and product quantities proportionally and predict outcomes using conservation of matter.

Learning Objectives

• Explain how photosynthesis transforms light energy into chemical energy stored in sugar molecules
• Describe how cellular respiration converts chemical energy in food into ATP that cells can use
• Compare energy use in active versus resting tissues and interpret how limits affect energy transformation rates+ Show more

Learning Objectives

• Explain how homologous and analogous structures provide evidence for evolution
• Use comparative anatomical features (limb bones, skull shape, vestigial organs) to infer evolutionary relationships
• Connect morphological comparisons with basic genetics and paleontology evidence to support phylogenetic ideas

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Explain how unbalanced forces change an object's motion, including changes in speed and direction.
• Use free-body diagrams to identify forces and determine the direction of the net force.+ Show more

Learning Objectives

• Identify different types of symbiotic relationships in ecosystems.
• Describe mutualism, commensalism, and parasitism using regional examples.
• Understand ecological impacts of these relationships on community dynamics.

Learning Objectives

• Define contact and non-contact forces.
• Explain how net force influences the acceleration of an object.
• Identify examples of push and pull forces in everyday life.

Learning Objectives

• Explain how the kinetic motion of particles affects temperature.
• Describe the differences between heat and temperature.
• Identify the methods of thermal transfer: conduction, convection, radiation.+ Show more

Learning Objectives

• Define what simple machines are and describe their basic functions.
• Identify different types of simple machines including lever, pulley, wedge, screw, inclined plane, and wheel-and-axle.
• Explain the concept of mechanical advantage and how it is achieved using simple machines.+ Show more

Learning Objectives

• Understand the criteria used to evaluate species' conservation status.
• Interpret evidence related to species population trends, threats, and recovery potential.
• Analyze regional examples of conservation status assessments.+ Show more

Learning Objectives

• Understand the concept of radiant energy transfer through electromagnetic waves
• Identify factors affecting radiative heating and cooling
• Recognize how solar angles and surface properties influence local microclimates

Learning Objectives

• Define what solution concentration means in chemistry.
• Identify different measures of concentration such as mass percent and grams per litre.
• Understand how concentration affects physical properties like boiling point and freezing point.+ Show more

Learning Objectives

• Understand the importance of oral histories in ecological knowledge.
• Identify how traditional place-based knowledge informs environmental understanding.
• Recognize examples of stewardship practices in Indigenous communities.

Learning Objectives

• Identify particles and describe their arrangement in solids, liquids, and gases.
• Explain how particle motion affects the state of matter.
• Relate microscopic particle behavior to macroscopic observations such as diffusion, condensation, and evaporation.

Learning Objectives

• Understand the basic concepts of heat transfer and insulation.
• Identify different materials used for insulation.
• Explain how insulation improves energy efficiency in buildings.+ Show more

Learning Objectives

• Identify and explain what homologous structures are
• Compare bone structures found in different species
• Understand how anatomical similarities inform evolutionary relationships

Learning Objectives

• Understand the concept of energy transfer in ecosystems
• Identify the roles of producers, consumers, and decomposers
• Explain how energy moves through food webs and trophic levels+ Show more

Learning Objectives

• Identify the main organelles in plant cells
• Understand the functions of nucleus, mitochondria, chloroplasts, endoplasmic reticulum, and membranes
• Compare plant cell structures with animal cells+ Show more

Learning Objectives

• Understand how carbon moves through biological processes
• Describe the pathways of matter recycling within organisms
• Explain how atoms are conserved during metabolic activities+ Show more

Learning Objectives

• Understand the concept of density as mass per unit volume.
• Describe how particle arrangement affects the density of materials.
• Explain how heating changes particle spacing and impacts density.+ Show more

Learning Objectives

• Understand how clouds form from water vapor
• Identify different types of clouds and their characteristics
• Describe the relation between cloud formation and weather patterns+ Show more

Learning Objectives

• Identify the assumptions made in scientific models.
• Recognize the boundaries and limitations of various models.
• Understand how discrepancies between observations and models signal the need for revision.+ Show more

Learning Objectives

• Understand the concept of density as it relates mass and volume.
• Compare densities of different materials like oil and water, aluminum and iron.
• Recognize that density is an intensive property that does not depend on the amount of material.

Learning Objectives

• Understand the difference between mixtures and pure substances
• Identify different types of mixtures based on observable traits
• Learn how to recognize homogeneous and heterogeneous mixtures+ Show more

Learning Objectives

• Define what a scientific model is and describe its purpose.
• Identify different types of models used in science.
• Explain how models help in understanding and predicting natural phenomena.+ Show more

Learning Objectives

• Understand the role of decomposers in ecosystems
• Identify the types of organisms that act as decomposers
• Explain how decomposition recycles nutrients back into the environment+ Show more

Learning Objectives

• Identify signs of gas production in chemical reactions.
• Differentiate between physical changes and chemical changes involving gases.
• Use observable evidence to infer chemical reactions.

Learning Objectives

• Understand the steps involved in the design process
• Identify functional requirements and constraints
• Learn how to compare design alternatives using criteria and trade-offs+ Show more

Learning Objectives

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

Learning Objectives

• Understand the basic components of ecosystems and their functions.
• Explain how energy flows through an ecosystem from the Sun to various organisms.
• Recognize factors that influence nutrient cycling and matter movement.+ Show more

Learning Objectives

• Understand how chemicals can affect water sources
• Identify safety measures related to water contamination
• Analyze human activities and their environmental consequences+ Show more

Learning Objectives

• Understand how matter such as carbon and nitrogen move through ecosystems
• Identify pathways like photosynthesis, respiration, decomposition, and nutrient transport
• Explain the role of decomposers in nutrient recycling+ Show more

Learning Objectives

• Define the particle model of matter
• Describe how particle motion relates to temperature
• Explain macroscopic properties like pressure and diffusion in terms of particles+ Show more

Learning Objectives

• Understand and calculate measures of central tendency: mean, median, and mode.
• Interpret dispersion using interquartile range, variance, and outliers.
• Represent data with simple graphical summaries.+ Show more

Learning Objectives

• Understand natural water sources and their limitations
• Identify factors that affect water availability such as natural events and human use
• Analyze how environmental conditions influence resource access and societal responses

Learning Objectives

• Understand the principles of temperature measurement and the functions of different thermometers.
• Identify and compare liquid-in-glass, bimetallic, and digital thermometers.
• Describe Celsius scale conventions and the importance of calibration.+ Show more

Learning Objectives

• Identify energy flow within food chains
• Understand the roles of producers, consumers, and decomposers
• Describe how energy transfer affects ecosystem stability+ Show more

Learning Objectives

• Understand the concept of natural selection and how it leads to adaptation.
• Identify factors that influence survival and reproduction in populations.
• Describe examples of traits that enhance survival in different environments.+ Show more

Learning Objectives

• Understand how symbolic chemical equations represent matter interactions.
• Interpret graphs showing changes in mass or temperature over time.
• Analyze tabulated experimental data to draw conclusions about chemical reactions.