Grade 7 Science Worksheets

Learning Objectives

• Identify the forces shown on a free-body diagram
• Determine the net force direction from component forces
• Use perpendicular component addition to find the net force magnitude description

Learning Objectives

• Understand the key force systems driving plate motion within the Earth.
• Describe how mantle convection, slab pull, and ridge push influence tectonic activity.
• Explain the interaction between different plate mechanisms and their effects on plate velocity and direction.+ Show more

Learning Objectives

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

Learning Objectives

• Explain that pure substances have uniform composition and characteristic properties.
• Distinguish elements from compounds using physical and chemical tests.
• Use fixed melting and boiling points to support identification of pure substances.+ Show more

Learning Objectives

• Understand the concept of an individual organism and its characteristics
• Recognize examples of individual organisms in ecological contexts
• Identify how individual traits contribute to higher levels of ecological organization+ Show more

Learning Objectives

• Define saturation and solubility in terms of dissolved solute at a given temperature and pressure
• Explain what happens when more solute is added after a solution becomes saturated
• Describe supersaturation and why it can lead to sudden precipitation

Learning Objectives

• Understand how test results guide design modifications for improved performance.
• Identify specific weaknesses based on data and suggest targeted changes.
• Explain how evidence from results connects to design decisions and improvements.+ Show more

Learning Objectives

• Understand the different types of biotic interactions such as predation, competition, mutualism, commensalism, and parasitism.
• Identify examples of biotic relationships in ecosystems.
• Explain how human actions can disrupt biotic relationships and affect biodiversity.+ Show more

Learning Objectives

• Understand the concept of the particle model as a representation of matter.
• Explain how chemical reactions involve the breaking and forming of bonds between particles.
• Describe why mass remains constant during chemical changes in a closed system.+ Show more

Learning Objectives

• Explain how disturbances (fire, flood, landslide, windthrow) change habitats and trigger succession.
• Describe how disturbance frequency, intensity, and spatial scale affect diversity and population trends.
• Identify examples of species adapted to disturbance regimes and species that may be locally lost.

Learning Objectives

• Understand how vibrating objects produce sound
• Identify the relationship between frequency and pitch
• Explain how amplitude affects loudness+ Show more

Learning Objectives

• Describe how magma composition and eruption style influence volcanic landforms.
• Identify different types of volcanic structures and their formation processes.
• Explain the roles of tectonic settings such as subduction zones and hotspots in volcanic activity.+ Show more

Learning Objectives

• Understand the different types of volcanoes and their characteristics
• Identify the factors that influence volcanic landforms
• Recognize the global distribution of volcanoes in relation to tectonic activity+ Show more

Learning Objectives

• Understand the roles of producers and consumers in ecosystems.
• Explain how energy transfer between trophic levels is inefficient.
• Describe the structure and dynamics of food chains and energy pyramids.+ Show more

Learning Objectives

• Understand how inclined planes reduce the effort needed to move loads by distributing work over distance.
• Identify and explain the components of force parallel and perpendicular to an inclined plane.
• Calculate the mechanical advantage of inclined planes using input force and load.+ Show more

Learning Objectives

• Understand the concept of mass conservation in closed-system reactions.
• Learn how to balance inputs and outputs in chemical reactions.
• Apply mass relationships to predict product yields from reactants.+ Show more

Learning Objectives

• Explain why long-term ecological monitoring uses standardized sampling protocols
• Identify common monitoring methods (fixed-site surveys, point counts, remote sensing, and water quality sampling)
• Describe how sampling design, temporal replication, and data quality improve the reliability of ecological trends+ Show more

Learning Objectives

• Explain how internal processes (uplift, deformation, earthquakes, eruptions) can reshape Earth’s surface.
• Describe how external processes (erosion, wind and water transport, deposition) form landforms.
• Use surface evidence such as rock strata, landform patterns, and hazard history to support a claim about past events.

Learning Objectives

• Explain what saturation means in terms of dissolved solute and solubility limits at a given temperature and pressure.
• Describe how supersaturation can form and why precipitation may occur suddenly.
• Identify real-world examples of saturation and crystallization, including evaporation and road salt effects.+ Show more

Learning Objectives

• Identify and describe the three main states of matter: solids, liquids, and gases.
• Explain particle arrangement, spacing, and movement in different states of matter.
• Understand how temperature and pressure affect changes between states.+ Show more

Learning Objectives

• Identify evidence of external and internal surface processes such as erosion, uplift, and volcanic activity.
• Understand how natural events like earthquakes and eruptions shape Earth's surface.
• Analyze landform patterns and hazard histories to interpret Earth's surface changes.

Learning Objectives

• Understand the importance of fair testing in scientific experiments.
• Identify appropriate measurement tools and units for testing variables.
• Learn how to control variables to ensure accurate comparisons.+ Show more

Learning Objectives

• Understand how solution concentration quantifies solute relative to solvent.
• Identify common measures of concentration such as mass percent and grams per litre.
• Recognize how concentration affects physical properties like boiling point and freezing point.+ Show more

Learning Objectives

• Understand how energy pathways and transformations are represented in system models.
• Analyze energy flow diagrams like Sankey charts for efficiency and loss identification.
• Connect real-world energy systems' operation with conservation principles.+ Show more

Learning Objectives

• Explain how distance affects sound amplitude and perceived loudness
• Connect frequency to pitch and amplitude to perceived volume
• Describe how reflection creates echoes and absorption reduces sound intensity+ Show more

Learning Objectives

• Understand how sound waves reach the observer and how they change along the path.
• Identify factors that affect loudness, pitch, and sound intensity.
• Explain how surfaces reflect sound to produce echoes and how materials absorb sound.+ Show more

Learning Objectives

• Understand how temperature variations influence ecosystems
• Identify ways in which temperature affects organisms and habitats
• Analyze the effects of environmental changes on population dynamics

Learning Objectives

• Use physical and chemical properties to predict how substances may react.
• Identify evidence that suggests a chemical change has occurred.
• Predict likely product types and possible energy changes using reactivity trends.

Learning Objectives

• Explain how changes in temperature, rainfall, light, habitat structure, and water quality can affect ecosystems
• Describe how shifts in populations of key species can alter relationships such as predation, competition, and symbiosis
• Use evidence from a passage to answer questions about environmental change and ecosystem impacts

Learning Objectives

• Explain how inclined planes reduce the required input force by increasing the distance over which the force acts.
• Identify and interpret force components parallel to and perpendicular to the slope.
• Calculate and compare mechanical advantage using input force and load.

Learning Objectives

• Use an energy budget to connect conduction, convection, and radiation to system energy performance
• Apply conservation of energy to compare net heat gain and required fuel energy in building or district heating systems
• Interpret how storage and conversion losses affect predicted temperature responses

Learning Objectives

• Understand how energy moves through mechanical and industrial systems
• Identify different forms of energy involved in systems like power plants and hydroelectric dams
• Explain the principles of energy conservation within system models+ Show more

Learning Objectives

• Understand the different types of interactions such as competition, predation, and symbiosis.
• Identify examples of each interaction type in ecosystems.
• Explain how these interactions influence community composition and resource availability.+ Show more

Learning Objectives

• Understand the basic principles of levers and how they provide mechanical advantage.
• Calculate the mechanical advantage of a lever using the ratio of effort arm to load arm lengths.
• Identify examples of levers and other simple machines in everyday life.+ Show more

Learning Objectives

• Explain how model evaluation compares predicted outcomes to evidence from observations or experiments
• Identify likely causes of mismatches between model predictions and evidence, including incorrect assumptions or missing factors
• Describe how computational simulations and sensitivity testing can reveal which inputs most affect model outputs+ Show more

Learning Objectives

• Identify how building orientation changes solar heat entering a home.
• Explain what passive solar gains are and how they affect seasonal heating needs.
• Describe trade-offs between comfort and energy demand in cold climates.

Learning Objectives

• Explain how natural climate records (ice cores, sediment layers, and tree rings) reveal past temperature and precipitation.
• Describe how modern instruments confirm and refine recent climate trends.
• Identify major climate drivers that can change Earth’s energy balance and circulation over time.

Learning Objectives

• Explain how energy transfer causes phase changes between solid, liquid, and gas states.
• Describe how particle motion and particle spacing change during heating and cooling.
• Differentiate melting, freezing, vaporization, condensation, sublimation, and deposition based on state changes.

Learning Objectives

• Distinguish mutualism, commensalism, and parasitism by the effects on both species.
• Explain how symbiosis types can influence population dynamics and community structure.
• Use examples to describe ecological consequences such as resource distribution and coevolution.

Learning Objectives

• Define calorimetry and explain its purpose
• Identify components involved in calorimetric experiments
• Describe how temperature change relates to energy transfer+ Show more

Learning Objectives

• Understand the definition of a population and how its size can change over time.
• Identify factors that influence population density and distribution patterns.
• Explain how reproductive capacity and survival rates affect population growth.+ Show more

Learning Objectives

• Explain conservation of mass in chemical reactions using particle-level ideas.
• Describe how closed systems affect mass before and after a reaction.
• Use evidence from balanced equations and atom rearrangement to justify constant total mass.

Learning Objectives

• Describe the different types of phase changes and what causes them.
• Explain how energy transfer affects particle movement during phase changes.
• Identify the characteristics of melting, freezing, vaporization, condensation, sublimation, and deposition.+ Show more

Learning Objectives

• Define and identify physical change in substances.
• Differentiate between reversible and irreversible physical changes.
• Describe common examples of physical changes such as melting, freezing, and dissolving.+ Show more

Learning Objectives

• Identify signs that indicate a physical change has occurred
• Differentiate between physical and chemical changes based on observable indicators
• Understand examples of physical changes in daily life

Learning Objectives

• Understand the key chemical properties and how they describe a substance.
• Identify observable indicators of chemical reactions.
• Assist in predicting reactions based on chemical properties like flammability, reactivity, and pH.

Learning Objectives

• Understand how energy changes occur during chemical reactions, including exothermic and endothermic processes.
• Explain how energy transfer relates to bond breaking and formation in chemical reactions.
• Distinguish between chemical and physical changes using energy evidence and other signs.+ Show more

Learning Objectives

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