IB Biology curriculum expects you to appreciate scientific problems in a global context with stimulating opportunities, and IB Biology IAs help you accomplish just that. If there are any ethical implications to your report, how do you plan on minimizing the environmental impact of your experiment?. http://www.xrite.com/online-color-test-challenge. How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? An IB Internal Assessment is an individual assignment assessed by a subject teacher following a given set of criteria to guide, construct, and evaluate the finished assignment. 1, Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. Lactobacilli reproduction and growth is the cause of milk spoilage. How would changing (storage) temperatures affect the rate of change of pH of different types of milk due to spoilage? 2. In accordance This investigation might sound simple at a first glance but there are many difficulties to overcome in terms of controlled variables and the method of measuring the CO2. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. At SL and HL levels, the performance is rated concerning a defined assessment criterion which is marked out of the score of 24. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. Originally Answered: what are some examples of good biology IA's? At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. Halophytes grow in Salty conditions whereas normal plants dont. Still feeling a bit uneasy about the task ahead? test HL - mark scheme, Animal physiology - test HL - mark scheme, Topic 2 - Molecular biology revision activities, Topic 3 - Genetics SL revision activities, Topic 5 - Evolution SL revision activities, Topic 6 - human physiology SL revision activities, Topic 7 - Nucleic acids HL revision activities, Topic 8 - Metabolism HL revision activities, Topic 9 - Plant biology HL revision activities, Topic 10 - Genetics HL Revision activities, Topic 11 - Physiology HL Revision activities, Option A - Neurobiology - Revision activities, Option D - Human Physiology Revision activities, Membrane structure & function quiz 1.3 & 1.4, DNA replication, transcription, translation quiz 2.7, Evolution - natural selection quiz 5.1 & 5.2, Humans - digestion and absorption workout, IA investigation - teachers marks summary, Extended Essay titles and research questions, Extended essay - self review quiz for students, EE supervisor roles - during the writing process, EE supervisor roles - feedback on a draft. Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the. We know that our topic has to be somewhat related to the syllabus, but where should we focus? Preview 1 out of 13 pages IB Biology IA topics: Biology being a scientific course encompasses a lot of investigation and research. I'll do so in a series of questions that will help you probe deeper into your IA. location on shore. 6, How does sudden change in body position affect heart rate and baroreceptor feedback? This looks like an interesting topic of study. How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? The challenge will be in deciding which concentrations to test and in explaining the results. Comparing Gersmehl diagrams from different biomes or applying them in different real-world conditions by measuring the content of nutrient sinks- biomass, litter, or soil. Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. 10, Can we slow down the decaying times of vegetables? Internal assessments make up for 20% of the grade and are all about scientific writing and research. So there we have it! All rights reserved. Once spread on the soil, compost and manure are broken down into minerals by decomposing bacteria and fungi, as well as by . Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. 1. Place all 5 of the red apples into the test tubes (1 piece for each test tube). In general, keep in mind that for your Chemistry IA we want to measuring how changing one variable has an [], Choosing where to start with an IA can be the hardest part, and this is definitely true for the Physics IA. Photo. Independent Variable: Temperature, Salts, Humidity, Oxygen availability, Dependent Variable: Rate of Decay measured by pH, mass or temperature change. Luckily, theres so many great topics to choose from, and we've asked some of our top team to note down some topics that might inspire your own incredible research! How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Other possibilities are paper simulations, e.g. Pay attention to one that is interesting for you, and that you might have ideas on how to develop the topic on. Soil respiration can be measured using a CO2 probe and a data logger the same equipment could be used to measure the rate of photosynthesis, although growth (or photosynthesis) can be measured in other ways too. How does stomatal density change according light exposure of red and blue light? Bananas lend themselves to this because their skin changes colour. Independent Variables: Different toothpaste manufacturers (Colgate vs Sensodyne vs Crest vs Aquafresh), Dependent Variable: Success of bacterial growth (seen by growth on an agar plate), Milk goes off because of lactobacilli reproduction and growth. A quart-sized bowl works great. Take inspiration from these and research further to land on that one idea that gets you going! Halophytes and Xerophytes have different adaptations to control transpiration rates, how do they each respond to temperature changes? IB Biology IA Ideas wont strike out of the blue, but heres a list of 30+ IB Biology IA ideas to inspire and stimulate your grey cells! How does different conditioners affect the strength of hair? Water Bath Method - Loosen the agar bottle cap, but do not remove it completely. How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? This FREE guide reveals the most powerful information for boosting your extended essay score and IA Review. are the criteria against which the investigation is assessed. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. Measuring the change in iron levels of avocados as they go through different ripening stages 25. This study could be an investigation of how effectively the toothpaste inhibits the growth of bacteria according to the scale of the chemicals in the toothbrush. But how do antibiotics affect the growth or successful germination of plants? Change the different conditions in which the plants are found as well as the species. Tip 1: The level of interest matters. 3. . Give us the email address you use to log in to Lanterna and well send you instructions for resetting your password. Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. Different plants will change their transpiration rates in response to the environment. It may even be possible to find a database of measurements of children of different ages. Clearly state your interest. (Write your IA title!) Using nationally published data on epidemiology and weather data is certainly possible and it could happen that there are correlations between climate and some disease outbreaks this will need explaining in terms of the mechanisms of transmission of the specific disease. promotional emails that we send to you. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. While having multiple trials is necessary for the investigation, each trial should also have multiple samples. Experimental setup:Find a xerophyte (eg. This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. Understanding some basic biology and the processes of plant breeding can help individuals understand GMOs and their safety. Exploring how the height of plants is affected by Nitrogen or Fluoride based fertilizers used. Independent Variable: Temperature/Psychological Stress (scary movies? A well. The practice of making sourdough is as ancient as bread itself. In some other cases E. coli can also cause urinary tract infections. Stomata are the areas of gas exchange in leaves. Here the challenge is the exploration section. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? It is important to set the Research Question in the background of the chosen topic. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! To measure the rate, you can either measure how quickly different species grow, or one of the other factors described below. HL Psychology or HL History? Take 10 micro liters of the cultured. On 10/25/2014 at 9:58 AM, AndovarEdoras said: On 10/25/2014 at 9:02 AM, mariiia said: you can do something with the rate at which cells/bacteria/etc multiply, which I think is population growth so it would involve natural logarithms and exponential curves at least. Writing the IA Your introduction is about summarizing what you are doing and why you are doing it. 2.1.2 Salt Doenjang is incubated at different salt concentration, controlled by the amount of sodium chloride dissolved in 100 ml of . location on shore. The greatest challenge in this investigation is getting a large enough data set which takes into consideration enough of the factors which need to be controlled. What are you waiting for? Read more about it here. with peppered moth types. 16, Determine the effect of glucose concentration on the rate of osmosis. which are specifically designed for self study and revision. [], or you can call us here at: +44 20 4571 0455. NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. There are many possible variations, perhaps the presence of animal excrement could be the causal factor, otherwise some species may be more resistant to scratching and disturbance, caged animals can selectively graze on parts of a lawn, just to mention a few ideas. There are some quite nice online tests of colour vision, and also many telephone apps. NOTES: Probiotics eat the lactose in milk through fermentation. Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. (1 More IB Past Papers). Even though many of these topics led to high scores for some of our graduates in the past, it is important that you listen to the advice of your subject teacher before choosing any topic! The role of a warm up in sport is clear. Whether you are looking for immediate help for IB Biology internal assessments ideas, online tutoring for any IB subject including biology or best study material for any IB group 1 to IB . For strict autotrophic organisms - Only inorganic compounds. Within each topic listed below, we include the basic reasons for investigating each topic, what the possible independent variables and dependent variables are as well as the basic experimental setup! It could be used in a wide range of labs. How do different kinds of toothpaste compare? They found that they could propagate their leavening by saving a bit of unused dough to sow the . Probiotic Frozen Yogurt W. Tungrugsasut1*, C. Wiwat2, V. Srisukh1, K. Thoophaew1, and P. Tippawat1. Experimental setup:Place a corn seed in a dark cupboard with a single light source. Need inspo for Physics too? Still feeling a bit uneasy about the task ahead? Heres a link to a scientific article that did something very similar, copy their method. The stages of embryonic development. Alternatively, sign up to our sites at www.studyib.net As the cell membrane disintegrates, alcohol can then enter the cell and . Be unique and think about how it's interesting to YOU! Of course there will be other factors to consider, for example local feature of the habitat where the plants are growing and the aspect of the flowers' location, not to mention grazing and grass cutting. 13, Comparative study between 5 different species of animals using BLAST analysis to determine evolutionary history. IA Overview. Unit 8, Suite V4Oakville, Ontario,CanadaL6H 1M3. Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? At the end of a long endurance event cramps and muscle fatigue will be evident but this is not possible to recreate in the lab in school. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. Let's help inspire M22 students since it's already IA season! 5 years ago. There are obviously many different factors influencing the rate of ventilation, you can investigate which those are! Here are a couple of other ideas you could browse and eventually take inspiration from: We hope these little ideas will help you brainstorm and explore further in the vast yet intriguing expanse, which is Biology. Using paper chromatography to analyse the various dyes present in different brands of jelly candy. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? CareerBuilder TIP. One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. Alcohol is a common active ingredient in many of the commercial mouth washes. The video breaks down the c. Does it matter what type of light the plant is exposed to affect the growth of auxin? Click here for top-notch IB resources or here to assess how your prep is going! should include all the normal conventions of d.p. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. Read more about it here. Coli bacteria using a micro pipette. 19, What is the difference in the CO2 levels exhaled before and after enduring physical exercise? Are you struggling with choosing your topic for your IB Biology IA? I got a 7 for Biology HL and my IA was awarded a 22/24. At this point, all apparatus should have been properly set-up and the experimentations should be able to commence. Report. If you are a student and wish to access these resources, ask your school to subscribe. IA Biology HL 6 Investigating the relationship between consumption of fat and carbohydrates per capita per day measured in kcal and share of adult obesity in a country as a percentage of the population IA Biology HL 7 Investigating Effect of Different concentration of pesticides on bacterial growth. Browse. It is quite easy to record the number of individual plants / animals of a single species in a river at different distances above and below a possible source of pollution.

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