, its objectives, partwise breakdown, and what IB expects of you. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. | Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. Perhaps another research question will be better, something linked to hormones, or to physical activity. They are produced in nature by soil bacteria and fungi. Toothpaste is supposed to block bacterial growth. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. Processes such as diffusion and osmosis as well as the effect of chemicals on components of cell membranes, or on enzymes could be included in the theory. Investigation of the functioning of the eyes when using paper or different electronic screens. Are you looking for some IB Biology Internal Assessment (IA) ideas? 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 . At Lanterna we have hundreds of tutors who smashed Biology. 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! There should be a distinct maxima in the curve, that is the most sensitive wavelength, and is the one you should use for all your experiments. Stuck for Ideas planning your Biology IA? Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. If a person exercises regularly they should have a better level of fitness, this might mean that their heart rate increases by less in the short burst of exercise than someone who does no regular exercise. Biology Labs Online have the potential for making biology education more interactive, effective, and fun!Biology Labs Online is a collaboration between the California State University system and Pearson, Inc.You can access these here https://sciencecourseware.org/BiologyLabsOnline/ (Thanks to Sarah Kelley for the link), Lab bench fly breeding lab Breeding Drosophila, fruit flies. There are some quite nice online tests of colour vision, and also many telephone apps. Math solutions -. classes to learn/preach! Controlling other factors which affect germination and collecting a large enough data set will also be good challenges for a Biology student to work out. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. 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). Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the IB Biology Diploma Programme Subject, its objectives, partwise breakdown, and what IB expects of you. The effect of techniques used to preserve milk on its ability to support the growth of probiotic bacteria. 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. OP. Heres a link to a scientific article that did something very similar, copy their method. Dependent Variable: Degree of growth of plant towards a light source. How do different concentrations of lactases affect the breakdown of disaccharides like lactose in milk effectively? Several university Extension services are now offering easy-to-use websites for those . 17. The IB advise student and teachers, each year, to avoid this sort of lab. Measuring the change in iron levels of avocados as they go through different ripening stages 25. Maybe you can suggest that to your teacher? Homemade extraction of your own DNA. Interactions of Bacteria and Fungi on Decomposing Litter Biology . By submitting this form, I agree to the data entered being used by Nail IBNSW for sending 1. Download our Guide: How to Write a Perfect Biology IA (Click Here), If youre interested in getting additional support for your Biology IA, we have a team of expert IB Biology tutors that can help you plan, structure and execute your assignment. Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. Before we match you with one of our trusted tutors, we want to know a little bit about you so we can ensure the best possible support. Do individuals of different types all behave in the same way to a stimulus. compare? 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. Help us improve CareerBuilder by providing feedback about this job: Report this job Job ID: 9096_4208814345. But how do we get started on a lab report and, crucially, what should we write about? Once spread on the soil, compost and manure are broken down into minerals by decomposing bacteria and fungi, as well as by . How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. The Aim answers Why while the Research Question answers the What. It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. Facebook Compost is made from dead plants and manure is the waste from animals. It is very easy to extract DNA at home just using everyday kitchen supplies. Clearly state your interest. This is a nice idea for an investigation into the number of species found in a garden in houses where there are pets and no pets. Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Studying the effect of enzymes on Cheese production. 19, What is the difference in the CO2 levels exhaled before and after enduring physical exercise? Still feeling a bit uneasy about the task ahead? Click here to reset it. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. What has inspired you to do that topic? Before you can grow bacteria, you'll need to prepare sterile culture dishes. Below you will find science fair project ideas primarily related to biology. Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. Be unique and think about how it's interesting to YOU! Independent Variable: Temperature/Psychological Stress (scary movies? 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. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. Is there an optimum intensity of warm up to achieve best performance? You can extract your own DNA from your saliva, or you can use any fruit or vegetable you can find at home bananas and strawberries are some of the most popular at science fairs. All rights reserved. 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Studying how sudden workout affects the heart rate and baroreceptor feedback. While having multiple trials is necessary for the investigation, each trial should also have multiple samples. Hurry, this offer ends on January 17th! Lost your password? Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. 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! The individual investigation should cover a topic that is commensurate with the level of the course of study. Starting at deep purple, and ending at far red, write down the A values. . Don't do it! Reply Grab ideas, see examples and create own perfect Biology essay and research paper! The development of biotechnology. Take inspiration from these and research further to land on that one idea that gets you going! So there we have it! 8, How do the buffering actions of milk, yogurt, juices, detergents etc. opening the floodgates to that sweet 45! Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. Reference to Course: Molecular Biology(Enzymes). cactus) and a halophyte (eg. Coli bacteria using a micro pipette. 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. Comparing the Carbon Dioxide levels in the air exhaled after and before workout sessions. Some independent variables will be easier to test than others, for example size of text and distance wt which it can be read, would be better than measuring reading speed which can be affected by many other variables. Exploring root hair cells and finding their visibility with age. 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 topic of investigation which relates to osmosis and ecology. )/ Studying, Dependent variable:Ventilation rate. 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 . it might even be possible to use mesocosms to perform this investigation as these would make it easier to control more of the other variables. Ensuring that there is enough data will also be important as there are likely to be quite a few other factors which will need controlling or considering at least. Independent Variable: Age, Tiredness, Gender, Eye Colour. All rights reserved. They are the foundation of food chains in almost every ecosystem. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. How does the pH level of watering solution affect the growth and development of chickpea (Cicer arietinum) and mung bean (Vigna radiata) over a time period of 5 days indicated by the length of the stem measured? The distinctive features of human physiology. Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. For strict autotrophic organisms - Only inorganic compounds. IB Acronym Glossary - Please help IB Community :) (Use egg as imitation of tooth). Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? 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. IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . assessment, worth 20% of the final assessment, consists of one scientific investigation. Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! The external assessment of biology consists of three written papers. Decomposing bacteria and fungi are organisms that help the process of decomposition. Lactobacilli reproduction and growth is the cause of milk spoilage. Measuring theses factors might be tricky and will involve some testing, although using a phone camera or a video camera could help. Koreans eat kimchi year round, enjoying its spicy taste and the fact that it contains loads of vitamins B and C. In this cooking and food science fair project, you will make kimchi from scratch and investigate changes in pH and glucose as the kimchi ferments. IA Overview. Neither should the idea be too generic and nor too simplistic. This was my Biology HL IA which was given a 21/24 by the IB. 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? Challenges: Being consistent in assessing the fruit ripeness. 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. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! You certainly dont want to miss out on these! This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. Your data shall be kept until you unsubscribe. Controlling factors which can affect blood pressure could be an investigation in itself! 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. The easiest way to solve it is to simply ask your teacher whether it will be possible, if you have good arguments they may let you do it Reply Posted June 10, 2015 Our bio teacher informed us we can do IAs involving bacteria as long as we use the incubator in the school, under his supervision. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. 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. which are specifically designed for self study and revision. When it comes to selecting from several IB Biology IA ideas for your investigation, it is essential to note that your IA would either require you to: Either way, you have to connect to your topic and portray personal engagement as it lays the foundation for the rest of your investigation. They found that they could propagate their leavening by saving a bit of unused dough to sow the . A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. How does different conditioners affect the strength of hair? Click here for top-notch IB resources or here to assess how your prep is going! The will (hopefully) impact the success of germination. This is a standard lab and the challenge will be to ensure that it is put into an interesting biological context. Subscribe and get the latest IB guides, notes,news, tips and product updates. It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. State your hypothesis; it is important in the context of your research. investigation should cover a topic that is commensurate with the level of the course of study. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? Halophytes and Xerophytes have different adaptations to control transpiration rates, how do they each respond to temperature changes? 13. http://www.xrite.com/online-color-test-challenge. Dont worry, weve all been there. Toothpaste is labelled according to how natural or how chemical the contents are. We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. Get your own tutor today! Read more about it here, Independent Variables: Concentration of Sucrose. I did one on predator-prey relationships and in the end I modelled two sine graphs. At this point, all apparatus should have been properly set-up and the experimentations should be able to commence. Topics about Biology, we've collected for you from our best Biology papers samples! Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . What's IB IA Program? Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. 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! The Internal Assessment can be a daunting task, for many students this will be the first time you're tackling such an assignment. 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. Then use agar plates and bacteria to test their effectiveness by seeing how many bacteria grow in the different plates! Report. First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. Measuring the energy content of a packet of Cheetos 30 IB Biology IA Topic Ideas 1. The video breaks down the c. How does stomatal density change according light exposure of red and blue light? Proper research on your part is a bare minimum, and the rest follows. 5, Effect of BMI on skin surface temperature in various body areas on rate of recovery once exposed to cold. Passion is fundamental in research, after all. it might even be possible to use mesocosms to perform this investigation as these would make it easier to control more of the other variables. 25 Unique Biology IA Ideas Mitosis: Calculate the Mitotic Index in onions and garlic How do different household products affect plant growth Effect of different types of contamination of plants Testing salt tolerance on plants The effect of different variables on fruit and vegetable decay Hereditary effect of Parkinson 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. 2. Some diseases spread through direct contact, others are transmitted by an insect vector. 3. . The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. Outline the Equipment, time, and resources to keep a check on its feasibility. Perhaps the muscles with a greater blood flow will cause a different effect to those in the bodies extremities, and what effect could warming up have on the process? Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill it. What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? Observe how changing the colour of the light source impacts the success of phototropism! Experimental setup:Use a potometer to measure the rate of transpiration. Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. This creates fermented products. Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). How does a sudden and intensive workout affect the heart rate, and to what extent does warm up have an impact on the maximum heart rate? 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? 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. Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. 12, What happens after the best-by date of dairy products? The challenge is to explain why there might be a change using biology and then to test it using some type of ecological sampling. 9, Do our reaction times slow down with age? using potassium permanganate and heating, from a protocol from Science & plants for schools. . So there we have it! Different plants that live in different conditions will have different requirements for gas exchange. Legal 18, What is the effect of isotonic drinks on rehydration and recovery after exercise? Exemplars. 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. Remember! These are all genera and the specific species present definitely vary between cultures. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. This is a great idea, but it could be complex and time consuming depending on the lab. IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc How does the composition of soil affect the growth of runner Plants from the original plant? Alcohol is a common active ingredient in many of the commercial mouth washes. Stir these together well: -teaspoon agar (1 1/5 grams) Does the behaviour of an animal change as the population increases? This investigation relies on the recording of abiotic data and data about the stage of the flowering cycle using the number of flowers / fruit / buds etc in a single species at different altitudes up a mountain. 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 height of plants is affected by Nitrogen or Fluoride based fertilizers used. This sounds like an easy investigation but it is tricky because first there needs to be some biological reason why the heart should speed up in the presence of music and this is impossible to explain with IB Biology. In paper 1 there are 30 (at SL) or 40 (at HL) multiple-choice questions. In this post, we outline the different necessary components. In line with the IB Learner Profile, "Act with integrity and honesty". InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at 6, How does sudden change in body position affect heart rate and baroreceptor feedback? But how do antibiotics affect the growth or successful germination of plants? HL Biology IA Help! Extract your own DNA. Want some A-quality guidance? Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. 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. These proportions make enough nutrient agar to prepare two petri dishes. 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. How does the concentration of zinc chloride affect the growth of plaque? 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. This is a simple experiment to carry out, but a difficult experiment to get good controlled data for.
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