the curious pencil

Learning Objectives

• Calculate heat transfer using mass, specific heat capacity and temperature change.
• Determine unknown specific heat capacities from calorimetry data.
• Calculate energy absorbed or released by a calorimeter.+ Show more

Learning Objectives

• Compare how levers, pulleys and inclined planes change force and distance
• Calculate mechanical advantage using input and output forces
• Determine power from work and elapsed time+ Show more

Learning Objectives

• Define physical systems, boundaries and surroundings
• Calculate work using force components and displacement
• Interpret signed areas on force-displacement graphs+ Show more

Learning Objectives

• Compare instrumental observations with historical climate proxy records
• Interpret temperature measurements using SI units and uncertainty
• Distinguish short-term fluctuations from sustained climate trends+ Show more

Learning Objectives

• Analyse how reflection and absorption shape Earth's energy budget
• Calculate reflected and absorbed solar radiation using albedo
• Explain how greenhouse gases affect outgoing infrared radiation+ Show more

Learning Objectives

• Explain how solar energy drives the stages of the water cycle
• Interpret weather information using pressure, humidity and dew point
• Calculate dew-point depression from air temperature measurements+ Show more

Learning Objectives

• Explain how selective breeding changes inherited traits over generations
• Compare selective breeding with genetic engineering methods
• Interpret crop-damage measurements and calculate differences in means+ Show more

Learning Objectives

• Compare divergent, convergent and coevolutionary patterns using biological examples
• Evaluate fossil, embryological and molecular evidence of common ancestry
• Explain limitations of mitochondrial DNA in evolutionary investigations+ Show more

Learning Objectives

• Compare genetic drift and sexual selection in populations
• Explain how reproductive isolation contributes to speciation
• Describe adaptive radiation from a common ancestral species+ Show more

Learning Objectives

• Explain how mutations introduce inherited genetic variation.
• Interpret changes in inherited trait frequencies across generations.
• Calculate population percentages using inherited characteristic data.+ Show more

Learning Objectives

• Describe the repeating-unit structure and formation of PET.
• Relate ester groups and aromatic rings to PET properties.
• Design controlled investigations using SI units and repeated measurements.+ Show more

Learning Objectives

• Interpret structural and condensed formulas of organic molecules
• Identify hydroxyl, carboxyl, and alkene functional groups
• Apply IUPAC naming conventions to simple organic compounds+ Show more

Learning Objectives

• Select analytical methods suited to specific water-quality questions
• Interpret calibration graphs and repeated chemical measurements
• Convert reported measurements to appropriate significant figures+ Show more

Learning Objectives

• Calculate molarity using solute moles and final solution volume
• Determine stock solution volumes using the dilution equation
• Calculate individual ion concentrations after solutions are mixed+ Show more

Learning Objectives

• Distinguish solutes, solvents and solutions using particle representations
• Compare molecular and ionic substances dissolved in water
• Construct balanced dissociation equations for ionic compounds+ Show more

Learning Objectives

• Resolve initial velocity vectors into horizontal and vertical components.
• Calculate projectile velocity components using trigonometric relationships.
• Analyze horizontal and vertical motion using elapsed time.+ Show more

Learning Objectives

• Interpret position–time graphs using slope and measured positions.
• Calculate velocity and displacement using kinematics equations.
• Determine acceleration from velocity–time graph slopes.+ Show more

Learning Objectives

• Distinguish scalar quantities from vectors using magnitude and direction
• Compare distance and displacement in different motion paths
• Calculate average speed and average velocity from motion data+ Show more

Learning Objectives

• Relate sound frequency and amplitude to pitch and loudness.
• Explain resonance, natural frequencies and harmonics using wave properties.
• Calculate beat frequency from two nearby sound frequencies.+ Show more

Learning Objectives

• Predict pulse reflection at fixed and free boundaries
• Compare wave transmission, refraction and diffraction
• Calculate resultant displacement using the superposition principle+ Show more

Learning Objectives

• Compare transverse and longitudinal waves by particle motion
• Distinguish pulses from periodic waves using physical examples
• Calculate wave speed and wavelength using v = fλ+ Show more

Learning Objectives

• Explain how composting transforms organic waste into useful materials
• Identify benefits and risks of community resource-management processes
• Formulate testable hypotheses for investigations of chemical processes+ Show more

Learning Objectives

• Interpret energy diagrams to identify activation energy
• Determine net energy change from reactant and product energies
• Compare exothermic and endothermic reactions using observations+ Show more

Learning Objectives

• Classify solutions as acidic, basic or neutral using pH evidence
• Interpret logarithmic pH changes through hydrogen ion concentration
• Construct balanced equations for acid–base neutralization reactions+ Show more