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Filter exemplars
IB
College
Category
Subject
Type a subject
Type a subject
Grade
7
6
5
4
3
2
1
A
B
C
D
E
Level
HL
SL
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May 2025
May 2024
November 2023
May 2023
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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?
IA
Biology
HL
7
New Syllabus
To what extent will the change of Microsoft’s Bing into an AI-powered search engine be profitable?
IA
Business and Management
SL
7
New Syllabus
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To what extent did the end of the password sharing influence Netflix brand image and sales?
IA
Business and Management
HL
7
New Syllabus
What is the profitability of Facebook’s change into Meta Platforms?
IA
Business and Management
SL
7
New Syllabus
Should Starbucks continue to focus on corporate social responsibility to increase its profits?
IA
Business and Management
HL
6
New Syllabus
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To what extent did the collaboration with Travis Scott influence McDonald’s brand image and sales?
IA
Business and Management
HL
7
New Syllabus
To what extent does Twitter's downsizing strategy impact its financial performance and overall market positioning?
IA
Business and Management
SL
7
New Syllabus
To what extent construction process of Tesla Gigafactory Texas may be considered ethical and profitable?
IA
Business and Management
SL
7
New Syllabus
Should ‘Safety.co’ move to online retailing?
IA
Business and Management
HL
7
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?
IA
Physics
SL
7
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?
IA
Biology
SL
7
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?
IA
Chemistry
SL
7
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?
IA
Physics
HL
7
New Syllabus
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?
IA
Chemistry
HL
7
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?
IA
Biology
SL
7
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?
IA
Biology
SL
7
New Syllabus
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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?
IA
Biology
HL
7
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?
IA
Physics
SL
7
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?
IA
Chemistry
SL
7
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?
IA
Physics
HL
7
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?
IA
Chemistry
SL
7
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?
IA
Chemistry
HL
7
New Syllabus
To what extent will the acquisition of Activision Blizzard by Microsoft allow it to be more competitive in the Gaming Industry ?
IA
Business and Management
SL
7
How does the rate of Saccharomyces cerevisiae fermentation, measured by volume of CO2 produced (in cm3) over a period of time (5 minutes), change with type of sugar (glucose, fructose, lactose, maltose, sucrose)?
IA
Biology
SL
6
Investigating the effects of using different types of tea on the number of successful germinations of lentils (Lens culinaris)
IA
Biology
SL
4
To what extent do the different acidity levels of acidic, neutral, and alkaline solutions on the pH scale affect the coloration of teeth?
IA
Biology
SL
5
What is the effect of different KCl percentage concentrations (0.0, 0.5, 1.0, 1.5, 2.0, 2.5) on the germination rate of Triticum Aestivum.
IA
Biology
HL
7
How do varying concentrations (0.0,0.1,0.2,0.3,0.4,0.5mol/dm3) of sucrose (C12H22O11) affect the cell respiration rate in yeast (Saccharomyces cerevisiae) by measuring the volume of carbon dioxide (CO2) gas released after yeast activation using a gas syringe over a period of 10 minutes?
IA
Biology
HL
6
What is the effect of changing temperatures (20, 40, 60, 80, 100 °C) on the amount of iodine released from iodized salt (NaCl) measured by an iodometric titration?
IA
Chemistry
HL
7
How does the concentration of lactose, altered by diluting whole milk with water at five different concentrations (20%, 40%, 60%, 80%, 100%), affect the rate of lactase activity, measured by how quickly glucose is produced?
IA
Biology
SL
6
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How does changing the concentration of coffee solutions (0.000%-1.000%) affect the hydrolysis of egg albumin by using the stomach enzyme, pepsin, after a period of 20 minutes?
IA
Biology
HL
7
How does the increase in the mean Body Mass Index (BMI) (24.0 – 30.9 kg/m2 ) for countries have an effect on their case-fatality (%) of patients with SARS-CoV-2, measured using the overall deaths and cases of SARS-CoV-2 patients in the countries, using the databases of World Health Organization, and Johns Hopkins Coronavirus Resource Center?
IA
Biology
HL
6
What is the effect of the volume of copper sulphate solution (0 cm3, 2 cm3, 4 cm3, 6 cm3, 8 cm3) added on the rate of hydrogen peroxide decomposition catalysed by catalase as measured by the height of the oxygen bubbles produced (mm) in 15 minutes?
IA
Biology
HL
7
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What is the effect of increasing Fe (III) concentration (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?
IA
Biology
HL
7
What is the correlation between the Human Development Index (HDI) and the prevalence rate of type 2 diabetes (measured in the number of prevalence by 100 people) in countries worldwide?
IA
Biology
HL
5
How is the daily growth rate of Lemna minor populations influenced by increases in phosphorus concentrations within closed aquatic systems?
IA
Biology
HL
6
How do varying concentrations of hydrogen peroxide (0%, 1.5%, 3.0%, 4.5%, 6.0%, 7.5%) affect the radicle length (mm) of Vigna radiata during its one-hour imbibition (pre-germinative seed soaking) before seed germination over a time period of 72 hours?
IA
Biology
HL
7
How do varying concentrations of Aloe vera gel (10%, 20%, 30%, 40%, 50%) in a pH balanced solution (pH 4) affect the percentage dehydration of Red Delicious apples (Malus domestica) measured by the change in mass (g) after a period of 7 days?
IA
Biology
HL
6
How do the emissions in metric tons of a country affect the incidence rate of non-communicable diseases (Lung Cancer and Chronic Obstructive Pulmonary Disease) per 100,000 people in Europe?
IA
Biology
HL
6
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 of over 7 days?
IA
Biology
HL
7