Grade 9 Science Worksheets

Learning Objectives

• Explain what magnification means in a microscope image
• Describe resolution and why it matters for seeing fine details
• Identify how contrast and staining affect how specimens look+ Show more

Learning Objectives

• Explain how hydrophilic and hydrophobic parts of phospholipids form a bilayer
• Describe how membrane structure supports selective permeability
• Identify how the bilayer acts as a barrier to some substances and allows others to pass

Learning Objectives

• Identify the main idea of a passage about organelle energy exchange
• Use supporting details to explain how chloroplasts and mitochondria cooperate
• Distinguish key organelle structures and roles in cellular energy transfer

Learning Objectives

• Identify the three core claims of cell theory from a text
• Use evidence from a passage to explain why cells are the basic unit of structure and function
• Explain how cell division supports the idea that new cells come from existing cells

Learning Objectives

• Define ecosystem services and identify their major types.
• Explain the importance of biodiversity in sustaining ecosystem functions.
• Assess human impacts such as land-use change and pollution on ecosystem services.+ Show more

Learning Objectives

• Understand key concepts of population growth, decline, and regulation.
• Identify factors influencing population dynamics such as birth rates, death rates, immigration, and emigration.
• Differentiate between density-dependent and density-independent factors affecting populations.+ Show more

Learning Objectives

• Explain the roles of producers, consumers, and decomposers in food chains and webs.
• Describe how energy flows through trophic levels and what trophic efficiency means.
• Analyze how trophic cascades impact ecosystems and community stability.+ Show more

Learning Objectives

• Apply dimensional analysis to verify that equations are unit-consistent when multiplying or dividing quantities.
• Use unit checking to detect algebraic and model-form errors when deriving relationships and scaling laws.
• Compute derived measurement units (such as density and rate) and evaluate whether numerical results are plausible.+ Show more

Learning Objectives

• Understand how forces influence motion through graphs and equations
• Analyze complex motion scenarios using kinematics, forces, and energy principles
• Interpret graphs and equations to predict physical behavior in real-world contexts

Learning Objectives

• Describe different types of seismic waves and their propagation characteristics
• Explain how earthquake focal mechanisms reveal fault types and stress orientations
• Relate seismic wave travel times to Earth’s interior models and methods for locating epicentres+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy.
• Explain how mechanical energy interconverts between kinetic and potential forms.
• Identify conditions for total mechanical energy conservation in systems.+ Show more

Learning Objectives

• Understand the basic functions of the nephron in renal regulation.
• Identify the hormonal systems involved in kidney function and blood pressure regulation.
• Explain the mechanisms of fluid and electrolyte homeostasis in the kidneys.+ Show more

Learning Objectives

• Understand the concept of speciation and the mechanisms that lead to the formation of new species.
• Identify reproductive barriers and their roles in speciation.
• Distinguish between allopatric and sympatric speciation processes.+ Show more

Learning Objectives

• Define various types of climate drivers including greenhouse gases, albedo changes, aerosols, and land-use feedbacks.
• Explain basic concepts of radiative transfer and how they relate to Earth's energy budget.
• Describe the influence of atmospheric composition on surface temperature.+ Show more

Learning Objectives

• Describe how the atmosphere interacts with solar energy to influence climate.
• Explain the role of the atmosphere in regulating Earth's temperature.
• Identify key factors that drive climate variability and change.

Learning Objectives

• Interpret visual data from microscopy images, including scale bars and resolution limits.
• Identify cellular structures and processes using staining and contrast techniques.
• Differentiate between effects of artifacts and real biological features in microscopy images.+ Show more

Learning Objectives

• Define the law of conservation of mass
• Explain how mass is conserved during chemical reactions
• Identify balanced chemical equations that demonstrate mass conservation+ Show more

Learning Objectives

• Understand the principles of optical and electron microscopy.
• Identify the differences between magnification, resolution, and contrast.
• Learn how to interpret microscope images with scale bars and artifacts.+ Show more

Learning Objectives

• Understand the principles of dimensional analysis and how to apply units to verify physical equations.
• Learn to identify and correct unit inconsistencies in calculations involving measurements and derived quantities.
• Explore the role of unit-checking in detecting algebraic errors and constraining plausible models in scientific analysis.+ Show more

Learning Objectives

• Explain the relationship between wave speed, frequency, and wavelength for waves traveling in the same medium
• Use the equation v = fλ to calculate wavelength or frequency from given values
• Interpret how changes in frequency correspond to compensating changes in wavelength when wave speed stays constant

Learning Objectives

• Understand how the hypothalamus interacts with the pituitary gland to regulate hormones.
• Identify key structural features that support neuroendocrine signaling.
• Describe the effects of neuroendocrine responses on body systems such as metabolism, growth, and stress.+ Show more

Learning Objectives

• Identify the main idea of a scientific passage about community interactions.
• Use details from the text to explain how species interactions shape community structure.

Learning Objectives

• Explain how frequency, wavelength, and amplitude describe different features of a wave
• Predict how changing one wave parameter changes a wave’s observable pattern or signal description
• Relate wave properties to energy and to different representations of the same wave

Learning Objectives

• Explain how frequency, wavelength, and amplitude affect a wave’s observable characteristics
• Use the relationship between wave speed, frequency, and wavelength to predict how one parameter changes when another changes
• Interpret wave “signatures” by connecting amplitude, frequency, and wavelength to different features of a signal

Learning Objectives

• Understand the basic process of glycolysis and its significance in energy production.
• Identify key intermediates and steps involved in glycolysis.
• Explain the differences between aerobic and anaerobic conditions in cellular respiration.+ Show more

Learning Objectives

• Interpret chemical names and formulas to identify elements and compounds.
• Identify elements and compounds using particle models.
• Predict combining ratios using the charges of ions.+ Show more

Learning Objectives

• Identify energy transformations in chemical cells, motors and generators.
• Compare energy inputs and useful outputs in electrical technologies.
• Explain unwanted energy transfers using evidence from technological examples.+ Show more

Learning Objectives

• Trace substance movement through environments, organisms and food webs
• Explain how amount, pathway and context affect exposure and harm
• Compare scientific and community responses to environmental contamination

Learning Objectives

• Calculate electrical power using voltage and current.
• Calculate energy transfer using power and operating time.
• Explain relationships between electrical power, time, and energy.+ Show more

Learning Objectives

• Explain environmental chemistry problems using relevant evidence
• Identify uncertainty in environmental investigations
• Interpret alternative explanations of environmental evidence+ Show more

Learning Objectives

• Compare historical explanations of celestial motion using scientific evidence.
• Identify observations that supported or challenged historical space models.
• Distinguish scientific observations from interpretations of celestial phenomena.+ Show more

Learning Objectives

• Classify materials using composition and measurable properties.
• Distinguish mixtures from pure substances using scientific evidence.
• Differentiate elements, compounds, metals and non-metals.+ Show more

Learning Objectives

• Identify environmental challenges associated with surviving in space
• Explain how space technologies address pressure and temperature challenges
• Compare engineering solutions using evidence from documented space missions+ Show more

Learning Objectives

• Identify predictions and safe methods for investigating chemical problems
• Interpret evidence while recognizing uncertainty and alternative explanations
• Communicate conclusions using evidence and reliable sources+ Show more

Learning Objectives

• Identify evidence of chemical change in documented reaction examples.
• Explain chemical changes involving combustion and corrosion.
• Compare factors that influence chemical reaction rates.+ Show more

Learning Objectives

• Explain how predictions guide investigations of electrical technologies.
• Analyze observations and measurements used as scientific evidence.
• Compare testing methods used to improve electrical designs.+ Show more

Learning Objectives

• Compare chemical measurements with biological observations
• Explain what pH reveals about an environment
• Interpret dissolved oxygen as environmental evidence+ Show more

Learning Objectives

• Identify how substances move through air, water, soil, and food webs
• Explain how persistence affects environmental risk
• Explain how toxicity and exposure affect environmental risk+ Show more

Learning Objectives

• Compare electrical generation technologies using environmental and economic evidence.
• Identify resource demands associated with electrical storage technologies.
• Investigate benefits and unintended consequences of electrical technology projects.+ Show more

Learning Objectives

• Explain how altitude and azimuth describe observed celestial positions.
• Interpret parallax observations as evidence of astronomical distance.
• Explain how Doppler observations reveal celestial motion.+ Show more

Learning Objectives

• Identify inherited variation within species using ecological examples.
• Explain how inherited differences influence survival during environmental change.
• Analyze ecological niches and relationships between organisms.+ Show more

Learning Objectives

• Compare sexual and asexual reproduction using documented scientific examples.
• Explain how inherited characteristics are transmitted between generations.
• Distinguish inherited variation from environmentally influenced characteristics.+ Show more

Learning Objectives

• Identify scientific questions investigated in real space exploration projects.
• Examine predictions, investigation methods and scientific observations.
• Interpret scientific evidence and recognize uncertainty in conclusions.+ Show more

Learning Objectives

• Compare static electric charge with sustained electric current.
• Interpret documented historical examples of electrical principles.
• Explain how conductors affect the movement of electric charge.+ Show more

Learning Objectives

• Compare the information collected by optical and radio telescopes.
• Explain how satellites collect scientific information about Earth.
• Describe how geometric models support position determination.+ Show more

Learning Objectives

• Describe Canadian contributions to space technology and scientific research.
• Explain Canada's involvement in international space cooperation.
• Compare scientific and economic benefits of real space projects.+ Show more

Learning Objectives

• Explain how genes and chromosomes contribute to inheritance.
• Distinguish mitosis from meiosis by their biological outcomes.
• Explain how cell division contributes to genetic variation.+ Show more

Learning Objectives

• Analyze how habitat changes affect biodiversity and population abundance.
• Explain how human activities influence genetic variation.
• Distinguish global extinction from regional disappearance.+ Show more