It may even be possible to find a database of measurements of children of different ages. Or find the correlation between the height of one's parents and their own height, then make predictions based on your findings. How does the acidity of different beverages affect the deterioration of tooth enamel? This is a great idea, but it could be complex and time consuming depending on the lab. Student work is internally assessed by the teacher and externally moderated by the IB. A quart-sized bowl works great. Login length need to be from 3 to 40 characters, Password length need to be from 8 to 40 characters. 12 Investigation ideas with a biological twist. The practice of making sourdough is as ancient as bread itself. This is an interesting quantitative method to estimate glucose concentration. Interactions of Bacteria and Fungi on Decomposing Litter Biology . Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. It is very easy to extract DNA at home just using everyday kitchen supplies. Get your own tutor today! Are you struggling with choosing your topic for your IB Biology IA? The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. For 5,000 years or more, humans have mixed flour and water, waited for the mixture to ferment, and when it was good and sour and full of gas, used it as leavening to make dough rise. What effect does temperature have on the ripening process of a fruit?. to inspire and stimulate your grey cells! NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. The problem of this investigation is that it is difficult to measure rehydration or salinity. Get for free what others have paid $100s in tuition Personal engagement, exploration, analysis, evaluation, and communication. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. Finding a topic is one of the - if not THE - most important part of writing your IA so we want to make sure that you get it right! Read more about it here. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. The difficulty begins with identifying the genres in a scientific way. At Lanterna we have hundreds of tutors who smashed Biology. Registration confirmation will be emailed to you. Experimental setup: For this experiment, combine a fixed mass of yeast with increasing concentrations of a sucrose solution and measure the rate of CO2 production! Let's help inspire M22 students since it's already IA season! Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? compare? Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. Browse these for more information! 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. . terms of service. This FREE guide reveals the most powerful information for boosting your extended essay score and The bacterial component shows more variation, including representation from Acetobacter and Gluconacetobacterto turn ethanol into acetic acid (giving the sour, vinegar flavor)as well as Lactobacilluslactic acid-producing bacteriain some instances. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). 30, Exploring mollusc shapes with regards to an external variable e.g. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. The stages of embryonic development. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. Independent Variable: Age, Tiredness, Gender, Eye Colour. using potassium permanganate and heating, from a protocol from Science & plants for schools. My IA was on bacteria by the way if you have any questions. Use it to spread the bacteria across the surface of the Petri dish while rotating it. Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! Dependent Variable: Rate of Seed Germination. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Place all 5 of the red apples into the test tubes (1 piece for each test tube). Comparing the Carbon Dioxide levels in the air exhaled after and before workout sessions. Teens can work to find out why certain plants present certain colors. http://www.xrite.com/online-color-test-challenge. A full experimental setup can be found on this link. Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Measuring theses factors might be tricky and will involve some testing, although using a phone camera or a video camera could help. Independent, Dependent variables need to be highlighted, as should the hypothesis. IB Biology IA: Enzymes Institution GEMS World Academy Level 7 IA (22/25 points) conducted on topic 2.5 (enzymes). 15, Analysing the impact of river pollution on marine life. Stuck for Ideas planning your Biology IA? Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. Experimental setup: In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. 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. There may be a combination of roles for plant roots and bacteria in the substrate and both of these link to the nitrogen cycle and so would allow for a detailed hypothesis and a focused research question. IA Advice & Ideas; Help! 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Still feeling a bit uneasy about the task ahead? How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? The challenge will be in deciding which concentrations to test and in explaining the results. Reference to Course: Molecular Biology(Enzymes). How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? Halophytes grow in Salty conditions whereas normal plants dont. This is a simple experiment to carry out, but a difficult experiment to get good controlled data for. Several university Extension services are now offering easy-to-use websites for those . By siging up, I agree to Lanternas NOTES: Probiotics eat the lactose in milk through fermentation. Independent Variable: Halophyte seed vs Normal Plant seed. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? This begs the question, is there an ideal concentration of sucrose for yeast growth? In this investigation a change in a physiological feature is explored. Bananas lend themselves to this because their skin changes colour. 17, What is the effect of pests on the diversity of plants in a lawn? Proper research on your part is a bare minimum, and the rest follows. 14. The Internal Assessment can be a daunting task, for many students this will be the first time you're tackling such an assignment. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. You certainly dont want to miss out on these! How does the percentage of salinity in water affect the rate of growth of radishes in mass? Understanding how a particular abiotic factor affects the biodiversity in a habitat. The practical methods to germinate seeds and select appropriate salt concentrations will present definite challenges but this is an interesting study for students living near the coast, or in places where salt is applied to the roads in winter. As the cell membrane disintegrates, alcohol can then enter the cell and . One possible solution is to measure another (or some other) factors about the body and look for a correlation. Investigate how different species of plants respond differently to environmental stimuli. Observe how changing the colour of the light source impacts the success of phototropism! watch this thread. If the algae is green, then the maxima should be over in . . Reply 7. Heres a link to a scientific article that did something very similar, copy their method. At SL and HL levels, the performance is rated concerning a defined assessment criterion which is marked out of the score of 24. Avoid any investigation where you are getting friends to drink Gatorade and measuring some unrelated but easy to measure factor, like pulse rate. Want some A-quality guidance? Alcohol kills bacteria by first making the lipids, which contribute to the outer protective cell membrane, more soluble in water so that the cell membrane begins to lose its structural integrity. Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. The biological explanation of why blood pressure might change when reading may be tenuous. This investigation could be a nice way to combine two standard procedures, one to estimate the rate of respiration in the soil and another to estimate the rate of growth of a plant. The analysis of the results and the design of the method is another place where PE can be demonstrated, try to take the standard lab and adapt it so show something which is not 'standard'. There are some quite nice online tests of colour vision, and also many telephone apps. Experimental setup:Find a xerophyte (eg. Stomata are the areas of gas exchange in leaves. An ideal IA idea is one that reeks of originality and leaves room for proper investigation and analysis in the process. (1 More IB Past Papers). Kimchi is a traditional fermented cabbage dish from Korea. Some diseases spread through direct contact, others are transmitted by an insect vector. The evolution of parasites. For strict autotrophic organisms - Only inorganic compounds. Click, See Is there an optimum intensity of warm up to achieve best performance? Click here to learn more. Most strands of this bacteria are found to be harmless and even healthy to be part of the human digestive system, however some strands can cause to the development of serious problems like . They are the foundation of food chains in almost every ecosystem. Be unique and think about how it's interesting to YOU! The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. The first step consists of spitting on the glass and adding a pinch of salt to it. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). In line with the IB Learner Profile, "Act with integrity and honesty". Canada: +1 (647) 249-7179USA (WhatsApp): +1 (678) 679-2365edu@plusplustutors.com, 407 Iroquois Shore Rd. Investigation of the functioning of the eyes when using paper or different electronic screens. To make things as simple as possible for you, we've put together a list of biology research project ideas. 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? Read more about it here. Need inspo for Physics too? OP. Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. Measuring the energy content of a packet of Cheetos 30 IB Biology IA Topic Ideas 1. Outline the Equipment, time, and resources to keep a check on its feasibility. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. Selecting an IBxq Biology IA idea has never been easier! A clear RQ is essential and there are quite a few possibilities. There are also many factors to consider in the type of reaction speed test that is used and there are also problems associated with the learning of the skill during the experiment. 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). Use a clean, microwave-safe container to mix the agar with water and then boil it. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. There are some online simulations but these can only be used in conjunction with some other analysis; never just present the online lab as an investigation on it's own. 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. Perhaps another research question will be better, something linked to hormones, or to physical activity. HL Psychology or HL History? 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. It is important that you do the work yourself and not just copy the material. 1678+ Video tutorials, 1226+ PDF IB Resources, 195+ Sample IAs, 148+ EEs, 8777+ Sample questions, 653+ quizzes, IB Dont panic weve got you covered. The data must be analysed by the student and tables / graphs etc. at which many forms of bacteria thrive [9]. They investigate the hypothesis that. Alcohol is a common active ingredient in many of the commercial mouth washes. The importance of agricultural microbiology. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. Toothpaste is supposed to block bacterial growth. Here is a list of top 22 Biology Internal Assessment (IA) ideas: IB ++tutors is a Canadian company that is committed to providing global, high-quality IB private tutoring services by IB expert tutors. If you are still not dissuaded then be sure to collect enough data and try to be analytical, don't mix types of music and tempos of music and try to keep the investigation to some biological cause or effect. The performance in internal assessment at both SL and HL is marked against common assessment criteria, with a total mark out of 24. Of course the IB guidelines on experimentation needs to be followed and written consent sought for participants. 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. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. should include all the normal conventions of d.p. State your hypothesis; it is important in the context of your research. Many methods are possible, and there has been some very recent research suggesting that antibiotics can affect the growth of seeds and plants.ref P.W. Of course the ideas are just ideas, nothing is specified and all the details will need to be explored and evaluated by students during their investigations. The individual investigation should cover a topic that is commensurate with the level of the course of study. Using paper chromatography to analyse the various dyes present in different brands of jelly candy. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. How do you even choose a topic? The following examples are not unethical, but just not very good, because the data is rarely enough for a good analysis and difficult to control. Do individuals of different types all behave in the same way to a stimulus. 30+ New IB Biology IA Ideas. Some suggestions of research questions may be; Is there a difference in the composition of photosynthetic pigments in the leaves of a plant found in the sun or the shade? Lactobacilli reproduction and growth is the cause of milk spoilage. IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. The sure shot way to ace ones IB Biology IA or any IA for that matter is by picking a topic that sparks ones interest. On this note, we wish you all the very best for your IB Biology IA Journey :). 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! Topics about Biology, we've collected for you from our best Biology papers samples! So there we have it! IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? We hope this article will serve as a foundation for you to get going on that IB Biology IA Investigation of yours! Math solutions -. Its very important that you consider if whether you can apply these topics to your own life, as this shows personal engagement. Therefore, 5 trials with 5 samples each make up 25 samples in total. Practical work could look at the density of aphids on leaves of different shades, or bumble bee feeding on flowers of different shapes or predator prey interactions etc. Copyright 2023 Get the grade you deserve. It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! Plants also play a significant role in the environment by influencing climate and producing life-giving oxygen. All rights reserved. It is a complex branch of biology that studies the smallest units and the living organisms. Probiotic Frozen Yogurt W. Tungrugsasut1*, C. Wiwat2, V. Srisukh1, K. Thoophaew1, and P. Tippawat1. 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 . To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. The role of a warm up in sport is clear. investigation should cover a topic that is commensurate with the level of the course of study. Student work is internally assessed by the teacher and externally moderated by the IB. You will find 100 topics on various subjects below. 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. Biology IA Checklist for HL & SL The International Baccalaureate Biology Internal Assessment makes up 20% of the final grade achieved by Biology HL and Biology SL students. Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. These are all genera and the specific species present definitely vary between cultures. These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. For this experiment, youll investigate how different variables affect the rate of decay! Despite so, there are still some that can cause bloody diarrhea, severe anaemia or kidney failure, all in which can lead to death. Using a previously characterized and described abdominal model to define the avian immune response to Salmonella intra-abdominal challenge in chickens, we have adapted this technique for the study of chickens' immune response to a Campylobacter intra-abdominal challenge. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. To measure the rate, you can either measure how quickly different species grow, or one of the other factors described below. Your data shall be kept until you unsubscribe. Challenges: Providing biological context for why youre measuring certain factors. IB Biology IA, EE on enzymes kinetics amylase using Visible spectrophotometer EE and IA on enzyme study is safe, easy and doable for IB students Starch digestion using Amylase Source for amylase from bacteria, malt or salivary amylase. These ideas are meant to give you a little head start along this path; your final IB Biology Investigation idea is your interpretation of one. Click here to reset it. In this post, we outline the different necessary components. 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. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. These are just some of the questions which will need answering. )/ Studying, Dependent variable:Ventilation rate. Facebook The Aim answers Why while the Research Question answers the What. 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. Exploring how the reaction times of humans get affected with age. We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. Exploring root hair cells and finding their visibility with age. For example, an idea inspired by how the soil pH affects seed germination could be investigated in a new light; think of other factors controlling/affecting seed germination, and with a focus on quantitative data, you could progress further in your report. By Background, IB expects you to briefly explain what encouraged you to choose a particular topic and hopefully a personal story that validates your choice and engagement.
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