Grade 9 Worksheets

Learning Objectives

• Describe the processes involved in the formation of igneous, sedimentary, and metamorphic rocks.
• Explain how different rock types transition from one to another in the rock cycle.
• Identify examples of rocks generated through melting, erosion, compaction, and metamorphism.

Learning Objectives

• Evaluate energy system transition pathways by comparing reliability, affordability, and greenhouse gas (GHG) reduction goals.
• Apply life-cycle greenhouse gas accounting to compare energy sources beyond tailpipe or stack emissions.
• Analyze how renewables integration, energy storage, grid capacity, and carbon capture affect emissions and environmental impacts.+ Show more

Learning Objectives

• Identify key components involved in molecular signaling pathways.
• Understand how signal transduction cascades influence gene expression.
• Explain mechanisms of hormonal and receptor-ligand signaling.+ Show more

Learning Objectives

• Understand the concept of scientific models and their purpose.
• Identify how mathematical and computational methods are used in scientific modeling.
• Recognize the components involved in developing performance objective functions and sensitivity analysis.+ Show more

Learning Objectives

• Understand the differences between digital and analog signals.
• Learn how bandwidth and signal-to-noise ratio affect data transmission.
• Explore sampling criteria and error-correcting techniques used in communication.+ Show more

Learning Objectives

• Understand the causes and effects of earthquakes and related hazards.
• Learn to evaluate hazard risks through data analysis and modeling.
• Explore case studies involving natural hazard impacts on communities.+ Show more

Learning Objectives

• Understand the structure and function of DNA
• Learn how genes are transmitted through reproduction
• Explore the processes of DNA replication and chromosomal segregation+ Show more

Learning Objectives

• Understand the concept of gravitational and electrostatic forces.
• Learn the inverse-square law and its impact on force magnitude.
• Apply mathematical formulas to calculate forces between objects.+ Show more

Learning Objectives

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

Learning Objectives

• Understand how nucleic acid sequences determine amino acid chains
• Learn how protein folding influences cell structures
• Explore the relationship between molecular coding and organelle architecture+ Show more

Learning Objectives

• Understand how photovoltaic cells convert solar energy into electrical energy.
• Identify the process and limitations of energy conversion devices.
• Analyze the concept of energy efficiency and losses during energy transformation.

Learning Objectives

• Understand the law of conservation of mass in chemical reactions.
• Learn how to write and interpret chemical formulas and equations.
• Practice balancing chemical equations through examples and exercises.+ Show more

Learning Objectives

• Describe the solid, liquid, and gas phases of matter and their distinguishing features.
• Explain the processes of phase changes such as freezing, evaporation, and condensation.
• Link energy changes to phase transitions in environmental contexts.+ Show more

Learning Objectives

• Understand the environmental impacts of different resource extraction and energy production methods.
• Compare the trade-offs between renewable and non-renewable energy sources.
• Analyze the life-cycle and sustainability considerations of resource management decisions.

Learning Objectives

• Identify key volcanic hazards and their effects.
• Understand the causes of volcanic eruptions.
• Analyze how volcanoes influence landscapes and communities.

Learning Objectives

• Compare diverse family structures (extended, nuclear, single-parent) and explain how they function in communities
• Describe how families shape identity through cultural values, stories, and everyday responsibilities
• Practice empathy and respect by recognizing common values across different family experiences

Learning Objectives

• Understand the stages of star formation and evolution
• Identify key features of stellar life cycles from gas clouds to final remnants
• Interpret Hertzsprung-Russell diagrams and spectral classifications+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy
• Calculate kinetic energy of moving objects
• Recognize the relationship between height, mass, and gravitational potential energy+ Show more

Learning Objectives

• Define endothermic and exothermic reactions based on energy flow.
• Describe how bond breaking and formation influence energy changes.
• Interpret energy diagrams to connect molecular interactions with observable phenomena.

Learning Objectives

• Understand the basic forces involved in motion, such as gravity and applied force.
• Describe how forces affect the movement of objects using free-body diagrams.
• Analyze the relationship between net force and acceleration based on Newton's laws.+ Show more

Learning Objectives

• Explain the causes of apparent diurnal and annual motion of celestial objects as viewed from Earth.
• Describe how Earth's rotation and revolution create observable patterns in the sky over nights and seasons.
• Relate celestial coordinate concepts such as rising, setting, altitude, and azimuth to observational sky patterns.+ Show more

Learning Objectives

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

Learning Objectives

• Explain the particle model of matter and how particles behave in solids, liquids, and gases.
• Describe real-world examples of particle behavior, such as diffusion and pressure.
• Connect observable phenomena to particle arrangements and motion.

Learning Objectives

• Identify parts of the electromagnetic spectrum and understand their relative frequencies.
• Explain how photon energy relates to wave frequency.
• Understand phenomena such as atomic emission and absorption lines.+ Show more

Learning Objectives

• Understand the concept of cosmic expansion and how it is measured.
• Interpret observational evidence such as redshift and cosmic microwave background.
• Learn how astronomers determine the age of the universe using various measurements.

Learning Objectives

• Identify dominant and recessive traits in Punnett squares
• Understand Mendel's laws of segregation and independent assortment
• Analyze genetic crosses to predict genotype and phenotype ratios+ Show more

Learning Objectives

• Understand different types of renewable energy sources
• Learn about the role of energy transition in reducing greenhouse emissions
• Explore the concepts of energy storage, grid capacity, and carbon sequestration+ Show more

Learning Objectives

• Understand what a free body diagram represents and its purpose in physics.
• Identify and sketch all external forces acting on a single object in a free body diagram.
• Calculate net force and determine the resulting acceleration from force vectors.+ Show more

Learning Objectives

• Describe the stepwise process of glycolysis and its key intermediates.
• Explain how ATP and NADH are produced during glycolysis.
• Identify the different fates of pyruvate under aerobic and anaerobic conditions.+ Show more

Learning Objectives

• Define evolution and identify its main mechanisms.
• Explain how natural selection, genetic drift, mutation, and gene flow influence genetic change over time.
• Analyze examples of how populations adapt and diverge through evolutionary processes.+ Show more

Learning Objectives

• Understand how molecular data is used to infer evolutionary relationships.
• Identify key concepts such as homologous genes, sequence divergence, and molecular clocks.
• Analyze patterns of genetic similarities and differences among species.+ Show more

Learning Objectives

• Describe how the nervous and endocrine systems coordinate responses to stimuli.
• Explain the roles of nerve impulses and hormones in maintaining homeostasis.
• Identify examples of rapid neural responses and longer-term hormonal effects.+ Show more

Learning Objectives

• Understand the concepts of heat transfer via conduction, convection, and radiation.
• Apply mathematical formulas involving specific heat capacity, mass, and temperature change to calculate thermal energy transfer.
• Identify sign conventions and their significance in heat flow and energy changes within closed systems.+ Show more

Learning Objectives

• Understand how decision models incorporate economic, environmental, and social variables.
• Analyze trade-offs involved in mitigation and adaptation strategies for climate resilience.
• Evaluate policy instruments and their impacts across multiple scales using scenario analysis.+ Show more

Learning Objectives

• Understand the processes involved in plate tectonics such as seafloor spreading, subduction zones, and mountain uplift.
• Identify the surface features and geological evidence associated with tectonic activity.
• Explain how mantle convection influences lithospheric deformation and faulting patterns.+ Show more

Learning Objectives

• Understand the process of seafloor spreading at mid-ocean ridges.
• Identify evidence supporting the theory of plate tectonics, including magnetic striping and age progression.
• Explain how oceanic crust is created and recycled in earth's lithosphere.

Learning Objectives

• Understand measures of dispersion such as variance, interquartile range, range, and coefficient of variation.
• Interpret how each variability measure informs confidence in estimates and decision-making.
• Relate variability to sampling design, heterogeneity across groups, and model expectations.+ Show more

Learning Objectives

• Describe the differences between catabolic and anabolic pathways.
• Explain how energy is harvested or stored during metabolic reactions.
• Identify mechanisms regulating pathway activity such as feedback inhibition and substrate availability.+ Show more

Learning Objectives

• Describe mechanisms of molecular movement across cellular membranes such as diffusion, osmosis, and active transport.
• Explain the role of electrochemical gradients and membrane potential in facilitating transport.
• Differentiate between paracellular and transcellular pathways in epithelial layers.+ Show more

Learning Objectives

• Describe how receptor proteins bind ligands to initiate cell signaling.
• Identify different types of cell signaling pathways and their functions.
• Explain how signal transduction pathways alter cellular responses like gene expression and metabolism.+ Show more

Learning Objectives

• Describe how hormonal feedback regulates blood glucose levels.
• Explain the roles of insulin and glucagon in maintaining energy balance.
• Identify the effects of insulin and glucagon on liver and muscle tissues.+ Show more

Learning Objectives

• Distinguish between contact and non-contact forces with examples and descriptions.
• Identify the direction, point of application, and relative magnitude of different forces.
• Recognize action–reaction pairs and understand their roles in interactions.+ Show more

Learning Objectives

• Describe the process of ATP production during cellular respiration and photosynthesis.
• Explain how catabolic and anabolic reactions are coupled in energy transfer.
• Compare the roles of electron transport chains in photosynthesis and cellular respiration.+ Show more

Learning Objectives

• Understand how Earth's atmosphere, hydrosphere, cryosphere, lithosphere, and biosphere interact to influence climate.
• Identify the main drivers of climate variability and change, including solar energy and internal heat.
• Explain the role of energy balance, greenhouse gases, aerosols, ocean circulation, and land surface properties in shaping regional climates.+ Show more

Learning Objectives

• Explain the concept of work as energy transfer involving force and displacement.
• Identify the factors that influence the amount of work done on an object.
• Differentiate between positive and negative work in various scenarios.+ Show more

Learning Objectives

• Describe the structure of DNA and its double-helix organization
• Explain the concept of chromosomes and their role in heredity
• Differentiate between nuclear and organelle genomes+ Show more

Learning Objectives

• Explain the process of fertilization and zygote formation.
• Differentiate between internal and external fertilization strategies.
• Describe embryonic stages, cell differentiation, and morphogenesis.+ Show more

Learning Objectives

• Compare the structural features of bacterial, archaeal, and eukaryotic cells.
• Identify key differences in size, compartmentalization, and genetic material among these cell types.
• Explain how cell organization affects metabolic processes and complexity.