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IB IA examples for all subjects

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All IA Examples

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How does the presence of earthworms influence the growth of stem in length [cm] of monocots (Avena sativa) and dicots (Phaseolus vulgaris) as measured by the mean height of the stem through 25 days?
IABiologySL6
New Syllabus
How does the mass of a marble (0.0050, 0.0100, 0.0150, 0.0200, 0.0250 kg) affect its vertical terminal velocity in a water container when dropped from a constant height measured using video analysis software?
IAPhysicsHL7
New Syllabus
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What is the effect of boiling in 100°C and filtering using the carbon filter on the hardness of tap water (mol/dm3) as measured using EDTA complexometric titration?
IAChemistryHL7
New Syllabus
What is the effect of cooking temperature (10, 25, 40, 55, 70 °C) of Ipomoea aquatica on its concentration of iron (II) ions, as measured by the titration volume of 0.002M potassium permanganate solution required to completely oxidize iron (II) ions in a solution of Ipomoea aquatica after cooking it for 10 minutes?
IAChemistrySL7
New Syllabus
How does the pKa value of certain weak acids present in food (2.85, 2.99, 3.13, 4.10, 4.76) affect the loss in mass of calcium carbonate (in grams, measured using an electronic balance, ±0.01 g), and how does the addition of sodium fluoride solution affect this reaction, keeping the concentration and temperature of the acid solutions and sodium fluoride solutions, the time taken for the reaction and the surface area of the calcium carbonate chips controlled?
IAChemistryHL7
New Syllabus
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How does varying the temperature of a copper wire (25.0, 100.0, 125.0, 150.0, 175.0, 200.0 °C) impact its resistance (Ω) measured by a multimeter (200 Ω) and an infrared thermometer?
IAPhysicsHL7
New Syllabus
What is the effect of increasing iron (III) chloride concentration (0 mg/L, 2mg/L, 4mg/L, 6mg/L, 8mg/L, 10mg/L) on the growth of duckweed (Lemna minor) in terms of change in number of leaves over 5 days?
IABiologyHL7
New Syllabus
What is the effect of the socio-economic development of European countries, as measured by the HDI, on the mortality rate from hypertensive heart disease within the older population (50+)?
IABiologyHL7
New Syllabus
How does the concentration of 50ml of ethanol solution (15%, 30%, 45%, 60%, 75%) influence the cell membrane permeability of beetroot, measured by the absorption transmission of light (Au) using a colorimeter, for 10 minutes?
IABiologySL7
New Syllabus
How does the variety of Capsicum annuum L. (green bell pepper, yellow bell pepper, red bell pepper, red sweet long pepper) and Allium cepa L. (yellow onion, red onion, white onion) influence their vitamin C content in mg/100g, as measured by vegetable juice volume needed to titrate 2 ml of 0.1% DCPIP solution?
IABiologyHL7
New Syllabus
What is the effect of the concentration (0%, 20%, 40%, 60%, 80%, 100%) of tea tree (Melaleuca alternifolia) oil on the growth of bacteria (non-pathogenic DH5- Alpha Escherichia coli) measured in the diameter of the inhibition zone around the paper disc?
IABiologySL7
New Syllabus
How does the height to which water is filled in a bottle (5.50, 7.20, 8.90, 10.60. 12.30, 14.00, 15.70 cm) affect the volume of water lost (in cm^3 ) and hence the volumetric flow rate (in cm^3 s^-1 )?
IAPhysicsSL7
New Syllabus
How do altering salicylic acid concentrations (0.0%, 0.5%, 1.0%, 1.5%, 2.0%) affect the germination of Capsicum annuum longum seeds measuring the radicle length (mm) of the sprouts over 7 days?
IABiologySL6
New Syllabus
How does the source of caffeine (Lipton Earl Grey, Lipton Yellow Label, Remsey Earl Grey, Milton Earl Grey Classic) affect its content (in g), determined using the DCM-facilitated separation funnel technique?
IAChemistryHL7
New Syllabus
What is the effect of increasing mass (2.0, 4.0, 6.0, 8.0 g) on the drag coefficient at terminal velocity as measured by the tracking of the position of the ball during free fall?
IAPhysicsHL7
New Syllabus
What is the effect of the temperature (30, 40, 50, 60, 70 °C) on the buffering capacity (mol/dm3) of phosphate buffer, as measured using titration with 0.1 mol/dm3 HCl?
IAChemistrySL7
New Syllabus
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How does the length of a beam (0.100 m, 0.125 m, 0.150 m, 0.175 m, 0.200 m, 0.225 m, 0.250 m) affect the sag (δ) produced as measured by adding a known mass?
IAPhysicsSL7
New Syllabus
What is the effect of changing temperatures (20, 40, 60, 80, 100 °C) on the amount of iodine remaining in iodized salt (in grams) after exposure to heat during cooking, as measured by an iodometric titration?
IAChemistryHL7
New Syllabus
How does changing the current [3.0, 3.5, 4.0, 4.5, 5.0 A] in electrolysis affect the mass of products formed at the cathode in the electrolysis of copper and aluminium respectively?
IAChemistrySL7
New Syllabus
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What is the effect of increasing tension (25 N, 29 N, 33 N, 37 N, 41 N, 45 N, and 49 N) on the fundamental frequency of an electric guitar string as measured by analyzing the produced sound via a digital tuner?
IAPhysicsHL7
New Syllabus
What is the effect of increasing graphite content (50%, 55%, 60%, 63%, 71%, 74%, and 79%) on the electrical conductivity of the core of a pencil as measured by the resistance across the pencil’s ends?
IAPhysicsSL7
New Syllabus
How does a steel spring’s temperature (20.0, 40.0, 60.0, 80.0, 100.0°C) affect its spring constant as measured by the length of the spring’s extension from the position of equilibrium under applied uniform load?
IAPhysicsSL6
New Syllabus
How does the distance from the city centre (1.3 km, 3.1 km, 4.1 km, 6 km, 7.1 km) affect the number of millimoles of the dissolved oxygen concentration in city ponds as measured by the Winkler Titration Method?
IAChemistrySL7
New Syllabus
Should Starbucks continue to focus on corporate social responsibility to increase its profits?
IABusiness and ManagementHL6
New Syllabus
To what extent does Twitter's downsizing strategy impact its financial performance and overall market positioning?
IABusiness and ManagementSL7
New Syllabus
To what extent did the collaboration with Travis Scott influence McDonald’s brand image and sales?
IABusiness and ManagementHL7
New Syllabus
What is the profitability of Facebook’s change into Meta Platforms?
IABusiness and ManagementSL7
New Syllabus
Should ‘Safety.co’ move to online retailing?
IABusiness and ManagementHL7
New Syllabus
To what extent construction process of Tesla Gigafactory Texas may be considered ethical and profitable?
IABusiness and ManagementSL7
New Syllabus
To what extent did the end of the password sharing influence Netflix brand image and sales?
IABusiness and ManagementHL7
New Syllabus
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To what extent will the change of Microsoft’s Bing into an AI-powered search engine be profitable?
IABusiness and ManagementSL7
New Syllabus
How does the concentration of sodium chloride ions (0.0, 0.3, 0.6, 0.9, 1.2, 1.5, 1.8 )% affect the rate at which -amylase hydrolyses starch, measured as the rate of change of absorbance values/ Au s-1(±0.001) of starch in iodine solution using a spectrophotometer, (light wavelength set at 430nm) in 300s?
IABiologyHL5
How significant were the impacts of the Suez Crisis on British foreign policy?
IAHistoryHL7
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US inflation hits 40-year high of 8.6% as food, gas and shelter costs rise (Macroeconomics)
IAEconomicsSL7
How does the surface area of a liquid affect its rate of evaporation?
IAPhysicsSL5
Modelling heart rate (BPM) of an individual during aerobic exercise
IAMath AASL6
A study investigating how effort heuristic affects the perception of quality
IAPsychologyHL7
What effect does the temperature of the solution (K) have on the rate of decomposition (cm3 s -1) of carbonic acid (H2CO3) to carbon dioxide (CO2) and water (H2O) and therefore what is the activation energy (kJmol-1) of this reaction?
IAChemistryHL6
Examining the Index of Refraction of Water at Different Temperatures
IAPhysicsSL6
What is the correlation between Human Development Index and case-fatality rate due to breast cancer per 100,000 people in 2020 among very high and highly developed European countries in female populations aged 45 or more?
IABiologyHL6
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