Grade 9 Science Worksheets

Learning Objectives

• Explain how ice cores, marine sediments, and terrestrial proxies can be used to reconstruct past atmospheric carbon conditions.
• Interpret how isotope ratios and trapped gases provide evidence for changes in greenhouse gases over time.
• Compare natural carbon-climate variability with recent anthropogenic increases using proxy and instrumental records.

Learning Objectives

• Describe the organization and function of the nervous system from neurons to neural circuits.
• Explain how signals propagate via action potentials and synaptic transmission.
• Relate cellular features such as myelination to conduction velocity.+ Show more

Learning Objectives

• Identify the main idea of a science passage about energy flow in ecosystems.
• Use key vocabulary related to producers and how energy begins in food chains.
• Explain how sunlight becomes usable energy for living things.

Learning Objectives

• Explain how chemical transformations in the environment can be described using particulate and atomic models.
• Apply mass conservation and system boundaries to interpret environmental mass flows (inputs, outputs, and storage).
• Analyze regional case studies (acid deposition on limestone, tailings chemistry, and prairie nutrient cycling) using evidence and chemical reasoning.

Learning Objectives

• Describe the particle model of matter using particle motion, spacing, and forces
• Explain how temperature relates to particle kinetic energy and particle motion
• Compare particle arrangements in solids, liquids, and gases and predict macroscopic behaviors+ Show more

Learning Objectives

• Understand the basic types of simple machines and their functions.
• Learn how simple machines reduce effort and change the direction of forces.
• Compare ideal mechanical advantage with real-world outcomes considering friction.+ Show more

Learning Objectives

• Understand the structure and function of various organs in the human body.
• Identify how tissues work together to form organs and systems.
• Explain the importance of organ systems for organismal survival.+ Show more

Learning Objectives

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

Learning Objectives

• Identify protons, neutrons, and electrons in atomic structure
• Explain how atomic structure determines atomic number and ion formation
• Describe electron configurations and identify valence electrons+ Show more

Learning Objectives

• Understand the concept of inertia and its significance in motion.
• Differentiate between rest and constant velocity states.
• Recognize the role of balanced forces in maintaining static and dynamic equilibrium.

Learning Objectives

• Understand how mineral mining changes landforms and ecosystems.
• Identify environmental effects of resource extraction like pollution and erosion.
• Evaluate sustainability criteria related to resource use and land reclamation.+ Show more

Learning Objectives

• Define inertia and understand its relation to an object's mass.
• Explain real-world examples of inertia.
• Identify how forces overcome inertia to change motion.

Learning Objectives

• Understand how genes and alleles influence traits in heredity.
• Identify the difference between dominant and recessive traits.
• Explain how genotypes relate to phenotypes across generations.+ Show more

Learning Objectives

• Understand the basic principles of metric measurement.
• Learn about common measurement tools and their resolution.
• Comprehend the importance of calibration for reliable data.+ Show more

Learning Objectives

• Describe key mechanisms of asexual reproduction (binary fission, budding, spore formation, and vegetative propagation).
• Explain genetic and ecological consequences of producing clones compared with sexual reproduction.
• Apply concepts to Alberta examples such as aspen root-sucker groves and horticultural propagation.

Learning Objectives

• Understand the hierarchical categories used in biological classification
• Recognize the difference between traditional and modern classification systems
• Identify key features used to classify living organisms+ Show more

Learning Objectives

• Explain the particle model using particle motion, spacing, and forces to describe solids, liquids, and gases.
• Relate temperature to average kinetic energy and predict how changes in temperature affect particle behavior.
• Use diffusion and gas pressure examples to connect microscopic particle events with macroscopic observations.

Learning Objectives

• Explain how computational simulations and numerical models generate predictions from hypothesized mechanisms.
• Analyze parameter sensitivity by comparing how changes in inputs affect model outputs.
• Use ensembles, visualizations, and uncertainty representations to compare scenarios and assess forecast reliability.+ Show more

Learning Objectives

• Distinguish elements, compounds, and mixtures using macroscopic appearance and compositional criteria.
• Explain what makes a pure substance different from a mixture and how fixed composition is used for identification.
• Use symbols and formulas to represent and classify elements and compounds.

Learning Objectives

• Explain the difference between primary and secondary ecological succession after disturbance or colonization.
• Identify how species turnover and changing resource availability drive changes in community composition over time.
• Use cause-and-effect reasoning to describe feedbacks that influence habitat conditions and ecosystem stability.+ Show more

Learning Objectives

• Explain the difference between primary and secondary ecological succession after disturbance or initial colonization
• Describe how species turnover and changing resource availability influence habitat conditions during succession
• Interpret succession ideas using simple cause-and-effect reasoning and basic modeling components

Learning Objectives

• Explain how microscope images relate to scale, proportion, and spatial structure in cells.
• Distinguish between light microscopy and electron microscopy in terms of what they can resolve.
• Use diagrammatic and physical models to form and test structural hypotheses about cell processes.

Learning Objectives

• Explain how genes (DNA) encode proteins and how regulation affects gene expression.
• Describe transcription and translation in simplified terms.
• Use examples to connect changes in protein structure or quantity to observable phenotypes.

Learning Objectives

• Identify common sources of uncertainty in scientific measurements and models.
• Explain how uncertainty is estimated from data spread, instrument resolution, and systematic effects.
• Evaluate when differences between results are meaningful compared to uncertainty.

Learning Objectives

• Identify and describe common observable properties of substances.
• Understand regional examples illustrating observable traits.
• Apply vocabulary related to observable properties in classification tasks.+ Show more

Learning Objectives

• Identify protons, neutrons, and electrons within an atom
• Understand how atomic number and mass number relate to isotopes
• Explain simple models of atomic nuclei and electron shells+ Show more

Learning Objectives

• Understand the structure and significance of crystal lattices in solids.
• Identify different lattice types and their properties.
• Explain how unit cells describe the smallest repeating pattern in a crystal.+ Show more

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks connect through rock-cycle processes.
• Identify key driving forces (energy sources and rates) and the role of plate tectonics in uplift and burial.
• Use field evidence such as sedimentary layering, igneous intrusions, and foliated textures to infer rock-cycle pathways.

Learning Objectives

• Represent a force as a vector, identifying its magnitude and direction
• Resolve a force into orthogonal components and use them to find the resultant
• Use vector addition to predict the net force from multiple concurrent forces

Learning Objectives

• Identify major eukaryotic cell organelles and their functions.
• Connect organelle structure to cellular tasks in different tissue types.
• Describe the roles of the nucleus, mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, lysosomes, ribosomes, and plasma membrane.

Learning Objectives

• Understand the hierarchical structure of biological classification systems.
• Identify and differentiate traditional and modern classification approaches.
• Compare various characteristics used to classify living organisms.+ Show more

Learning Objectives

• Define the greenhouse effect and identify the gases involved.
• Explain how greenhouse gases trap heat in the atmosphere.
• Recognize natural vs. human contributions to greenhouse gas levels.+ Show more

Learning Objectives

• Explain how magnetic fields are produced by magnets and moving electric charges
• Use field-line ideas to predict the direction of magnetic forces on different materials
• Relate current direction to magnetic field orientation around a wire

Learning Objectives

• Identify the main steps of binary fission and budding in asexual reproduction.
• Explain how asexual reproduction affects genetic similarity among offspring.
• Describe why asexual strategies can spread well in stable environments.

Learning Objectives

• Explain major sources of genetic variation, including mutation, recombination, gene flow, and chromosomal rearrangements
• Describe how each variation source can increase or decrease genetic diversity within a population
• Use examples of introduced species and managed fisheries to predict changes in gene pools+ Show more

Learning Objectives

• Explain how energy from the Sun and Earth’s interior is transferred through Earth systems using radiation, conduction, and convection
• Describe how energy gradients drive atmospheric and ocean circulation and influence weather and climate patterns
• Connect radioactive heat production in Earth’s mantle to long-term mantle convection and volcanic activity

Learning Objectives

• Explain when total mechanical energy is conserved in a system (kinetic + potential) under negligible non-conservative forces
• Describe how kinetic and gravitational potential energies interconvert using height–speed relationships
• Account for energy dissipation when non-conservative forces (such as friction) do work on a system

Learning Objectives

• Define speed, velocity, and acceleration using distance, displacement, time, and direction
• Distinguish scalar and vector quantities in motion problems
• Apply sign conventions and unit conversions to compare motions

Learning Objectives

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

Learning Objectives

• Understand the concepts of power, energy transfer rate, and efficiency in machines and systems.
• Analyze regional engineering examples to assess power output and energy losses.
• Compare theoretical and practical efficiencies of machines to identify operational trade-offs.+ Show more

Learning Objectives

• Understand the concepts of endothermic and exothermic reactions and how energy is transferred during chemical processes.
• Interpret energy diagrams and relate molecular interactions to observable temperature and phase changes.
• Analyze real-world examples, such as combustion, to comprehend energy release and absorption in chemical bonds.+ Show more

Learning Objectives

• Understand the differences between simple and complex inheritance patterns such as polygenic traits, epistasis, and pleiotropy.
• Explain how variable penetrance and expressivity affect phenotype manifestation.
• Describe how linkage influences independent assortment, and how environmental factors modulate traits.+ Show more

Learning Objectives

• Differentiate heterogeneous mixtures from homogeneous solutions using the concepts of uniformity and separability.
• Identify solute, solvent, and explain how concentration relates to the amount of solute in a solution.
• Describe common separation methods based on physical properties (e.g., filtration, evaporation, distillation).

Learning Objectives

• Explain the main types of seismic waves and how their paths and speeds reveal Earth structure.
• Use seismic wave timing to estimate epicentres and relate earthquake size to magnitude.
• Describe how focal mechanisms reveal fault types and the orientation of stress during earthquakes.

Learning Objectives

• Identify common circuit diagram symbols and connection types used to represent circuit topology.
• Trace current paths and determine likely voltage relationships at nodes in a diagram.
• Use standardized notation (nodes, series/parallel connections) to communicate and predict behavior of simple circuits.

Learning Objectives

• Explain how mid-ocean ridges create new oceanic crust through seafloor spreading
• Describe how magnetic striping in basalt records seafloor spreading history
• Interpret how seafloor age and seafloor features (bathymetry and sediment thickness) support models of plate motion

Learning Objectives

• Understand what a prototype is and its purpose in scientific testing
• Learn how prototypes provide evidence for evaluating design performance
• Identify examples of criteria used to assess prototypes such as strength, accuracy, and efficiency

Learning Objectives

• Understand how Earth's axial tilt affects the seasons
• Explain the relationship between Earth's position in orbit and day length
• Describe how the angle of sunlight influences temperature and weather patterns