Grade 9 Science Worksheets

Learning Objectives

• Understand and describe how materials appear and behave under ordinary conditions.
• Identify different observable properties such as colour, texture, density, and solubility.
• Use vocabulary related to observable material properties to classify and compare substances.+ Show more

Learning Objectives

• Describe the structure and function of the heart, including its valves and chambers.
• Explain the hierarchy of blood vessels and their roles in circulation.
• Understand haemodynamics, including blood flow and vascular resistance.+ Show more

Learning Objectives

• Define the criteria for establishing control and comparability in causal inference.
• Understand how variable isolation, replication, baseline characterization, and reference conditions influence causal claims.
• Explain how residual confounding and uncontrolled variation affect the strength of causal inferences.+ Show more

Learning Objectives

• Understand how energy moves through ecosystems from producers to consumers and decomposers.
• Describe the process of photosynthesis and how energy is transferred trophically.
• Explain the concept of energy transfer efficiency and its impact on food chain length.+ Show more

Learning Objectives

• Explain the components of atomic structure, including protons, neutrons, and electrons.
• Understand how atomic number and mass number define isotopes and element identity.
• Describe simple models of nuclei and electron shells to explain chemical behavior.+ Show more

Learning Objectives

• Compare the particle models of solids, liquids, and gases based on shape, volume, and particle motion.
• Explain phase changes (melting, freezing, evaporation, condensation, and deposition) using energy changes and particle behavior.
• Predict how temperature and pressure changes can influence the state of matter in real-world examples.

Learning Objectives

• Understand how wind energy contributes to renewable power sources.
• Identify concepts related to grid balancing with intermittent energy sources.
• Explain the environmental and economic impacts of renewable energy integration.

Learning Objectives

• Explain speciation as the splitting of one ancestral population into distinct species.
• Compare allopatric and sympatric speciation and identify how gene flow changes in each.
• Distinguish prezygotic and postzygotic reproductive barriers and give examples of each.

Learning Objectives

• Identify major parts of a phylogenetic tree.
• Interpret what branching patterns suggest about common ancestry.
• Use vocabulary such as rooted, unrooted, ancestor, descendants, and clade to explain tree features.

Learning Objectives

• Understand the diagnostic physical and chemical properties of common rock-forming minerals.
• Explain how mineral composition relates to formation environment and stability.
• Connect mineral assemblages to petrogenetic histories and economic significance.+ Show more

Learning Objectives

• Compare physical and chemical changes by describing how energy transfer relates to what happens to particles and bonds.
• Explain endothermic and exothermic processes using the direction of energy flow and the resulting temperature changes.
• Use system–surroundings thinking to predict whether energy is absorbed or released during a change.

Learning Objectives

• Explain the concept of work in physics and how it relates to energy transfer.
• Identify situations where work is positive, negative, or zero.
• Describe the relationship between work, force, and displacement.+ Show more

Learning Objectives

• Explain the particle model as a framework for understanding states of matter and particle motion.
• Describe how particle arrangement and forces influence phase stability and behavior.
• Relate temperature changes to particle kinetic energy and movement.+ Show more

Learning Objectives

• Explain the particle model as a framework for understanding states of matter and diffusion.
• Describe how particle motion and spacing relate to temperature and phase.
• Link microscopic particle behaviour to macroscopic phenomena such as gas pressure and diffusion rates.+ Show more

Learning Objectives

• Explain the three laws of motion proposed by Sir Isaac Newton.
• Identify real-world examples that illustrate each of Newton's laws.
• Predict the motion of objects when forces act upon them based on Newton's principles.+ Show more

Learning Objectives

• Describe chemical properties as tendencies to undergo specific chemical changes.
• Identify evidence of chemical change, such as new substances, gas evolution, precipitate formation, and permanent colour change.
• Distinguish chemical changes from physical changes using reaction observations and product evidence.

Learning Objectives

• Explain how gases are exchanged at the alveolar–capillary interface.
• Identify factors that influence oxygen and carbon dioxide movement between alveoli and blood.
• Describe the mechanics of ventilation and the concept of dead space in breathing.+ Show more

Learning Objectives

• Explain how friction opposes relative motion and how it can convert kinetic energy into thermal energy
• Differentiate static friction and kinetic friction and describe how each affects motion
• Use the idea that friction depends on surface properties and normal force to predict net force and acceleration

Learning Objectives

• Define and explain the concept of work in physics and how it relates to force and displacement.
• Identify and distinguish between kinetic and potential energy.
• Calculate work done by constant forces in various scenarios.+ Show more

Learning Objectives

• Explain how graphs and tables represent data and how axes, labels, and units affect interpretation.
• Identify qualitative trends and quantitative relationships in data displays, including spread and outliers.
• Use evidence from a representation tool to support cautious scientific conclusions.

Learning Objectives

• Explain how environmental chemical reactions can be analyzed using evidence, atomic/particulate explanations, and mass conservation.
• Apply system boundary ideas to track measurable mass flows in real environmental contexts (e.g., acid deposition, tailings chemistry, nutrient cycling).
• Use chemical and environmental vocabulary to describe how substances transform and where they go in an ecosystem.

Learning Objectives

• Understand the concept of energy profiles and their role in chemical reactions.
• Identify the differences between exothermic and endothermic reactions based on energy changes.
• Interpret the significance of activation energy and transition states in reaction pathways.+ Show more

Learning Objectives

• Draw and interpret free-body diagrams by identifying all forces acting on an isolated object
• Apply force-vector conventions (direction, labeled forces, points of application, and coordinate axes)
• Differentiate equilibrium from acceleration using net force and Newton’s second law+ Show more

Learning Objectives

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

Learning Objectives

• Understand the law of conservation of matter during chemical reactions
• Explain how atoms are rearranged during reactions without being created or destroyed
• Identify examples of conservation of atoms in chemical processes+ Show more

Learning Objectives

• Identify the four main tissue types and their functions.
• Describe tissue structure and how cell specialization influences organ properties.
• Explain how tissues work together at the organ level to perform specific functions.+ Show more

Learning Objectives

• Understand how inclined planes decompose gravitational forces into components parallel and perpendicular to the surface.
• Identify the effects of mechanical advantage on applied force and displacement when using inclined planes.
• Analyze the role of friction and slope angle in determining net acceleration and energy transfer during motion.+ Show more

Learning Objectives

• Describe how particle behavior differs in solids, liquids, and gases
• Identify evidence in a text that matches each state of matter to its particle model
• Explain phase changes using energy and particle motion

Learning Objectives

• Explain how an inclined plane changes gravity into components parallel and perpendicular to the surface.
• Predict how friction and slope angle affect acceleration down an incline.
• Relate mechanical advantage to the tradeoff between force and distance using work ideas.

Learning Objectives

• Understand the different states of matter: solid, liquid, and gas.
• Explain phase changes such as melting, vaporization, sublimation, and condensation.
• Describe how energy transfer affects particle motion during phase transitions.+ Show more

Learning Objectives

• Understand different types of chemical bonds: ionic, covalent, and metallic.
• Describe how bond energies, polarity, and lattice structures influence material properties.
• Interpret Lewis structures, electron sharing, and electron transfer models to explain molecular geometry.+ Show more

Learning Objectives

• Understand how inclined planes decompose gravitational force into components that affect motion.
• Explain the concept of mechanical advantage and its effects on applied force and distance traveled.
• Analyze the roles of friction and slope angle in determining net acceleration and energy transfer during motion.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how net force and direction determine an object’s acceleration when forces do not balance
• Use force reasoning to predict how changes in net force affect both the magnitude and direction of motion
• Differentiate between balanced and unbalanced forces using examples and real-world scenarios

Learning Objectives

• Explain how protons determine the identity of an element and how electrons influence chemical behavior
• Differentiate atomic mass and isotopes by relating them to protons and neutrons
• Use the atom model (nucleus and electron energy regions) to predict basic properties and bonding patterns

Learning Objectives

• Understand the conventions and components of free-body diagrams for isolated objects.
• Identify and represent the fundamental forces acting on objects, such as weight, normal force, tension, and friction.
• Apply free-body diagrams to analyze scenarios involving inclined planes and hanging masses.+ Show more

Learning Objectives

• Explain how collision frequency and activation energy affect reaction rate
• Calculate rate changes using reaction-order exponents in rate laws
• Describe how temperature and concentration affect molecular collisions+ Show more

Learning Objectives

• Identify different types of epithelial tissues.
• Describe the structure of epithelial cells.
• Explain the functions of epithelial tissue in organs.+ Show more

Learning Objectives

• Identify the parts of a phylogenetic tree, including branches, nodes, and common ancestors.
• Understand the significance of rooted and unrooted trees.
• Differentiate between monophyletic, paraphyletic, and polyphyletic groups.+ Show more

Learning Objectives

• Understand key safety standards and codes related to electrical installations.
• Identify the purpose of protective devices and how to interpret their labels.
• Recognize environmental considerations affecting electrical safety.+ Show more

Learning Objectives

• Interpret position–time graphs to determine velocity from slope.
• Interpret velocity–time graphs to determine acceleration from slope.
• Use area under a velocity–time graph to find displacement over an interval.+ Show more

Learning Objectives

• Define static and kinetic friction and understand their differences.
• Identify real-world examples of static and kinetic friction.
• Explain how surface properties influence static and kinetic friction.+ Show more

Learning Objectives

• Understand how electric motors convert electrical energy into mechanical work.
• Identify different types of electric motors and their basic operating principles.
• Recognize applications of motors and generators in regional industrial contexts.+ Show more

Learning Objectives

• Understand how chemical change and mass conservation relate to environmental issues.
• Identify observable evidence of environmental transformations and interpret their causes.
• Explain the importance of system boundaries and measurable mass flows in environmental analysis.+ Show more

Learning Objectives

• Describe major carbon reservoirs in the atmosphere, biosphere, oceans, and geosphere.
• Explain how carbon moves through pathways such as photosynthesis, respiration, dissolution, and sedimentation.
• Quantify the idea of residence time and interpret how human emissions perturb natural carbon budgets.+ Show more

Learning Objectives

• Understand the structure and function of the kidneys in maintaining fluid and ion balance.
• Identify processes such as filtration, reabsorption, secretion, and concentration within the nephron.
• Explain the influence of hormones like antidiuretic hormone and aldosterone on kidney function.+ Show more

Learning Objectives

• Identify key physical and chemical properties used to distinguish minerals.
• Understand how mineral properties relate to their formation environment.
• Recognize the significance of mineral properties in economic deposits.+ Show more

Learning Objectives

• Understand how fossil records provide evidence for the history of life on Earth.
• Identify the processes and methods used to date fossils and interpret their significance in evolution.
• Explain the concept of transitional fossils and their importance in linking major groups.+ Show more