Other possibilities are paper simulations, e.g. 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. Biology in the DP - International Baccalaureate Natural selection - lab bench Which type of water fleas escape predators best? 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. At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. 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. Exploring how the height of plants is affected by Nitrogen or Fluoride based fertilizers used. 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. 3. . Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. 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? Controlling factors which can affect blood pressure could be an investigation in itself! Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? Where do you even begin such a task? compare? Then is is going to be a challenge to design a method of data collection which controls all the possible variables. Learn everything you need to get a 7 in your IB subjects with our online courses. The performance in internal assessment at both SL and HL is marked against common assessment criteria, with a total mark out of 24. with peppered moth types. The role of a warm up in sport is clear. Independent, Dependent variables need to be highlighted, as should the hypothesis. IA Review. 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. Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? Want some A-quality guidance? www.thinkib.net. You certainly dont want to miss out on these! These are all genera and the specific species present definitely vary between cultures. In this post, we give you 50 IB Biology IA Ideas to help you speed up your research process. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. using potassium permanganate and heating, from a protocol from Science & plants for schools. tillu22. Be unique and think about how it's interesting to YOU! 8, How do the buffering actions of milk, yogurt, juices, detergents etc. For this experiment, youll investigate how different variables affect the rate of decay! This investigation is going to require a very precise research question and some careful methodology to ensure that the data collected can be used to answer the RQ. If youre struggling with the Paper 2 Data Based Questions, we also have a post about that here. Stuck for Ideas planning your Biology IA? PDF Biology Internal Assesment Higher Level are the criteria against which the investigation is assessed. 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. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! Different plants that live in different conditions will have different requirements for gas exchange. Clearly state your interest. How do you even choose a topic? This could be compared to listening to music where research has been done to establish that pulse rate can be affected by music. They are produced in nature by soil bacteria and fungi. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. Is there an optimum intensity of warm up to achieve best performance? 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. Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the. It is possible to establish a theoretical link between mild stress and adrenaline (epinephrine) which will affect features in the body including pupil size but it is not possible to directly measure the level of any hormones in the body. You will find 100 topics on various subjects below. 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 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. Compost is made from dead plants and manure is the waste from animals. How would changing (storage) temperatures affect the rate of change of pH of different types of milk due to spoilage? 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. 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. Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. Bio IA graded 7 IB score - Aim: To determine the effect of - Studocu Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! 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. This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. One idea would be to make a series of soils using active compost and sand. Right from neurobiology to the fascinating subjects of the immune system, MyAssignmnethelp.com covers a wide range of biology research topics. (Write your IA title!) There are some quite nice online tests of colour vision, and also many telephone apps. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. Halophytes and Xerophytes have different adaptations to control transpiration rates, how do they each respond to temperature changes? Writing the IA Your introduction is about summarizing what you are doing and why you are doing it. (DOC) BIOLOGY Practice IA | Riona Claire - Academia.edu Coli bacteria using a micro pipette. Bacterial Growth and Nutrition | Biology Ideas | Microbiology Media State your hypothesis; it is important in the context of your research. The individual. Proper research on your part is a bare minimum, and the rest follows. Heres a quick summary of how you are supposed to choose an appropriate IB Biology IA idea for your report: Now that you know how to settle on that one perfect topic, lets quickly brief ourselves with the proper planning and procedure involved in the making of an IB Biology IA: Concise Research Question: Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. Maths IA, how to combine biology with maths? - IB Survival Stomata are the areas of gas exchange in leaves. Experimental setup:Place a corn seed in a dark cupboard with a single light source. Follow the steps here to extract the DNA. At Lanterna we have hundreds of tutors who smashed Biology. . Reference to Course: Molecular Biology(Enzymes). IA Design - IB Chemistry Biology IA What effect does temperature have on the ripening process of a fruit?. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. Test how different household cleaning products affect seed germination! How the rate of decay affects temperature, water & oxygen - BBC Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). Challenge: Gathering enough data, Pollution affecting species growth. Heres a useful link for ventilation rates. Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. 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. Use it to spread the bacteria across the surface of the Petri dish while rotating it. This could be a difficult investigation to do quantitatively unless there was a longer time period available to observe growth. 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. )/ Studying, Dependent variable:Ventilation rate. How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? Of course, you can use any of our topics for free. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. Avoid this type of investigation, . [], or you can call us here at: +44 20 4571 0455. 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. IA and EE - IB Chemistry Biology IA 17, What is the effect of pests on the diversity of plants in a lawn? Alcohol is a common active ingredient in many of the commercial mouth washes. 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. Comparing the Carbon Dioxide levels in the air exhaled after and before workout sessions. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. The use of a transect of transects will be useful for the sampling. 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. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. In order to do well in any science IA, you need to fulfil the criteria i.e. The first step consists of spitting on the glass and adding a pinch of salt to it. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. 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. IB HL Biology IA Proposal - The effect of lactase on various - StuDocu