Keep the research question brief and relevant. 14, What is the respective change of allele frequency when initial frequencies are manipulated? Reply Experimental setup:Gather participants for the study and compare how quickly they can catch a ruler (measured in cm). [], We all know that scoring superbly on internal assessments is a great way to boost our IB grades. 10, Can we slow down the decaying times of vegetables? This FREE guide reveals the most powerful information for boosting your extended essay score and While these organisms inhibit the growth of many pathogenic bacteria and are also inten- tionally employed to ferment milk to make other dairy products such as yogurt and cheese, they can also induce A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. Exploring root hair cells and finding their visibility with age. 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! Registration confirmation will be emailed to you. NOTES: Probiotics eat the lactose in milk through fermentation. 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. LinkedIn, IBDP Maths: Applications & Interpretation, Changes in the Biology Guide for 2025 exams, Video introduction to Learning activities, Distance learning using InThinking Biology, Setting written tasks using pdf worksheets, Teacher activity - Mastering student access, The origin of cells and cell division 1.5 + 1.6, Molecular biology: Activities for Learning, Molecules to metabolism - planning sheet 2.1, Carbohydrates and Lipids - planning sheet 2.3, Structure of DNA and RNA - planning sheet 2.6, Hairy Hands - genetics of mid-digital hair, Genetic modification - planning sheet 3.5, Species & communities - Planning sheet 4.1, Classification of biodiversity - planning 5.3, Reclassification of figworts using cladistics, Emergency room activity - enzyme inhibition, Electron transport chain - revision games, HL Plant Biology - Activities for Learning, Reproduction in plants - planning sheet 9.4, HL Animal Physiology Activities for Learning, Antibody & vaccination - planning sheet 11.1, Sexual Reproduction - 11.4 planning sheet, Option A - Neurobiology - Activities for learning, Neuropharmacology HL - planning sheet A.5, Option B - Biotechnology and bioinformatics, Organisms in industry Topic - Planning sheet B1, Batch fermentation and continuous culture, Biotechnology in agriculture - planning sheet B2, Cryptic messages - bioinformatics introduction, Environmental protection - planning sheet B3, Option C - Ecology Activities for learning, Species & communities - planning sheet C1, Communities & Ecosystems - planning sheet C2, Conservation of biodiversity - planning sheet C4, Option D - Human physiology Activities for learning, Respiratory gases - planning sheet HL D.6, Individual investigation - skills introduction, IA avoiding common errors - model answers, IA Experiments that could be done at home, Investigating strawberries with a glucose test meter. Look no further; at Nail IB, we have assembled premium content for you to ace your IBs, and you might want to check out our resources for a smooth IB experience. 30 Biology IA Topic Ideas! | Lanterna Education Blog About us IB Biology IA Ideas Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. 100 Biology Research Topics Ideas For Students Coli bacteria using a micro pipette. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? 13, Comparative study between 5 different species of animals using BLAST analysis to determine evolutionary history. In line with the IB Learner Profile, "Act with integrity and honesty". 1. To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. The effect of pets on the diversity of plants in a garden lawn. 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. 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. Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. 30+ New IB Biology IA Ideas. Preview 1 out of 13 pages Antibiotics | Microbes and the human body | Microbiology Society Bacterial Growth and Nutrition | Biology Ideas | Microbiology Media June 22, 2021 by Ruturaj Mundhe Culture media and Bacterial Growth Bacterial Growth and Culture media are solid, semisolid, and liquid nutrient preparations employed for the cultivation of microorganisms. Nice to see you here. How does stomatal density change according light exposure of red and blue light? How does the shade of a leaf relate to the composition of photosynthetic pigments it contains? Therefore, it's super important that your IB Biology IA gets as high a mark as possible. Bio IA graded 7 IB score - Aim: To determine the effect of - Studocu This page is a simple list of general biological ideas for investigations. 12, What happens after the best-by date of dairy products? The external assessment of biology consists of three written papers. Place all 5 of the red apples into the test tubes (1 piece for each test tube). Originally Answered: what are some examples of good biology IA's? Access them all! Change the different conditions in which the plants are found as well as the species. 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. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. To get started, you'll need to make your agar and fill some petri dishes. Remember, the Independent variable is one that you are allowed to change(just one); the Dependent variable is one that you measure as it changes with the Independent variable; all the other experiment conditions must be kept constant to ensure that the experiment is fair. We look forward to joining the Lanterna and being part of your success. How do halophyte seeds respond to increasing salt concentrations compared to normal seeds? Selecting an IBxq Biology IA idea has never been easier! (16 More IB Resources), See Investigate how different species of plants respond differently to environmental stimuli. Posted October 26, 2015. This investigation is a bit biochemical and the answer to simple research questions about the hydrophobic / hydrophyllic properties of photosynthetic pigments themselves would be a little bit obvious, so the challenge is to thing of a research question that could be answered by mixing petroleum ether (a nonpolar solvent) and propanone (a polar solvent) in different proportions and calculating retention factors. This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. OP. A full experimental setup can be found on this link. Test the stomatal density of different leaves exposed to variable conditions using a microscope. 1. Heres a useful link for ventilation rates. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. Investigating muscle activity involved when standing on ones toes(Ballet dancers). The role of a warm up in sport is clear. Take inspiration from these and research further to land on that one idea that gets you going! IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . This is a list of possible sites for students to use as online labs. Alternatively, sign up to our sites at www.studyib.net However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. What are you waiting for? In order to do well in any science IA, you need to fulfil the criteria i.e. For this experiment, youll investigate how different variables affect the rate of decay! What effect does temperature have on the ripening process of a fruit?. Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . One idea would be to make a series of soils using active compost and sand. 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. You have to show that the data has been carefully selected, and that measures have been taken to ensure that other factors which might affect the data have been controlled, by careful selection of the data used. 1. They are produced in nature by soil bacteria and fungi. An important thing to note here is that although you are allowed to take inspiration from existing research, papers/journals, you are expected to give a novel perspective to the idea while producing it in your investigation. Click, See location on shore. Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. Go through several IA ideas to understand what all topics are in sync with the IB Biology curriculum and if something grabs your attention, hold on to it! Lots of scope but not an easy investigation to complete in the time, in 12 pages. These proportions make enough nutrient agar to prepare two petri dishes. The effect of techniques used to preserve milk on its ability to support the growth of probiotic bacteria. For your privacy and protection, when applying to a job online, never give your social security number to a prospective employer, provide credit card or bank account information, or perform any sort of monetary transaction. Where do you even begin such a task? Hurry, this offer ends on January 17th! Contact, Twitter If there are any ethical implications to your report, how do you plan on minimizing the environmental impact of your experiment?. The individual. Understanding some basic biology and the processes of plant breeding can help individuals understand GMOs and their safety. 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. The release of CO2 by the body in the lungs is not simple either, factors to consider include the relative amounts of aerobic and anaerobic respiration, as well as the position of the muscles being exercised. The bacteria-infected mice were given PPEF, BPVF, levofloxacin, and ciprofloxacin at different doses (10 and 20 mg/kg bw) by dissolving in sterile water as a vehicle at a volume of 0.1 mL using a . Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. www.thinkib.net. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. Antibiotics are used to treat plants for bacteria. | Facebook We hope this article will serve as a foundation for you to get going on that IB Biology IA Investigation of yours! This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. By testing people of different ages to see if there is a difference in their reaction time it may seem like a simple study, but there are a lot of factors which need to be controlled and it will be difficult to find enough participants to create a large enough data set. Despite so, there are still some that can cause bloody diarrhea, severe anaemia or kidney failure, all in which can lead to death. disinfectant, rum, vodka, etc.). IBDP Biology InThinkingSubject Sites for teachers & their classes and uncertainties. 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. Vegetables decay over time but how can we slow down the process? Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. HL Psychology or HL History? IB Biology IA | Criteria Break Down, Tips & Tricks and Possible IA Ideas How does the percentage of salinity in water affect the rate of growth of radishes in mass? It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. (Use egg as imitation of tooth). Human benchmark lab - Quite a nice small set of tests, including reaction times, Mean arterial pressure calculator online - a useful little calculator, Sciencelab Chemical data sheets MSDS (Materials Safety data sheets) - useful for risk assessments, document.write(new Date().getFullYear()) InThinking It is all the same when choosing that one Biology IA idea from a platter full of inspiration. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. Take 10 micro liters of the cultured. The five assessment criteria are personal engagement, exploration, analysis, evaluation and communication. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. This creates fermented products. with peppered moth types. at which many forms of bacteria thrive [9]. There are plenty of factors to control which makes this investigation difficult and if there isn't enough data or the controls are not in place this could lead to a low mark after much work. 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. Is there an optimum intensity of warm up to achieve best performance? 0. How does cumin and turmeric powder, in comparison to indigestion tablets, affect the rate of neutralization of hydrochloric acid, measured by the difference of change of pH levels in 5 minutes? A quart-sized bowl works great. Right from neurobiology to the fascinating subjects of the immune system, MyAssignmnethelp.com covers a wide range of biology research topics. 13. Ecological techniques and quadrat sampling could be used together with mapping of digging or scratching to establish whether the presence of a pet increases plant diversity or not. Studying the effect of enzymes on Cheese production. How to Choose Interesting Biology Research Topics? - MyAssignmenthelp.com They know exactly how to get a 7 in your IA and exam and can give you tips and tricks on how you can do the same. You certainly dont want to miss out on these! Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. Without further adieu, lets dive headfirst into 30+ IB Biology IA ideas for your Biology IA Investigation! IB Biology IA ideas - Maths, English, Chem, BM, Eco, ITGS - IB Elite Pour the bacteria onto the solidified agar plate. The stages of embryonic development. Subject to the conditions provided for by applicable . 12 Examples and Tips for IB Biology IA | MakeSensei 3. . Stomata are the areas of gas exchange in leaves. Fear not, we have elite Biology tutors that can assist you through the process IB Maths is a struggle for most people going through their diploma. For instance, if you choose to investigate how light levels affect the predation of peppered moths, you could set a background of you have gained a fascination for that species ever since it was introduced to you for some explanation in your regular classes and eventually give more scientific basis for your choice. Toothpaste is supposed to block bacterial growth. Below you will find science fair project ideas primarily related to biology. These five biology research topics are for graduate-level students, catering specifically to those in top programs around the country: What evidence is there of a pandemic that can wipe out half of the world's population? Are you looking for some IB Biology Internal Assessment (IA) ideas? As the cell membrane disintegrates, alcohol can then enter the cell and . Check out this link for more details, Independent variables: Age of participant/Age + sensory stimuli (how to hearing, seeing and touch-based reaction rates change), Dependent Variables: Time taken to catch ruler between fingers /Time taken to clap when they see light, Challenges: getting enough people to get reliability, controlling variables, Different diseases spread at different rates in different weather conditions depending on how they are passed between organisms (Skin contact, Blood-Blood contact, Cross-species barriers). Level of passive aggression in individual sportsmen is found higher. Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. A limitation with an experiment that finds the relationship between sodium ion concentration and the rate of neurogenesis in the hippocampus of the brain is that its results are not applicable to other parts of the nervous system.