This looks like an interesting topic of study. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. 9, Do our reaction times slow down with age? 6 years ago. Browse. 5 years ago. Narrow down the subject. In addition to that, the IA explores how inhibitor ethanol affects the rate of the reaction. 30 Biology IA topic ideas to get your lab report started! Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! How does stomatal density change according light exposure of red and blue light? Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. The data collection using the online lab may be easy enough, but the challenge is going to be designing a meaningful experiment and collecting enough results to complete the analysis well. Constraints, if any, need to be mentioned as well. Vegetables decay over time but how can we slow down the process? Pease comment on broken links and suggest alternative ideas in the comments. For strict autotrophic organisms - Only inorganic compounds. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. 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. Independent, Dependent variables need to be highlighted, as should the hypothesis. 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. (16 More IB Resources), See The internal assessment requirements are the same for biology, chemistry and physics. How does the percentage of salinity in water affect the rate of growth of radishes in mass? Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the. Despite so, there are still some that can cause bloody diarrhea, severe anaemia or kidney failure, all in which can lead to death. You certainly dont want to miss out on these! with current laws and regulations, you can unsubscribe at any time by clicking on the link in Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? We have a team of awesome tutors ready to help you ace the IB. 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. In line with the IB Learner Profile, "Act with integrity and honesty". 6, How does sudden change in body position affect heart rate and baroreceptor feedback? Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. 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. using potassium permanganate and heating, from a protocol from Science & plants for schools. Internal assessment criteria the new assessment model uses five criteria to assess the final report of the individual investigation with the following raw marks and weightings assigned: Complete this form and well match you with a Tutor to help you master your EE! 12, What happens after the best-by date of dairy products? Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. 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. Some plants grow well in coastal soils with igh salt concentrations but others don't. There are biology topics that can be connected to culture, music, language, and the like. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? What's IB IA Program? investigation should cover a topic that is commensurate with the level of the course of study. Bacteria are single-celled microorganisms with prokaryotic cells, which are single cells that do not have organelles or a true nucleus and are less complex than eukaryotic cells. 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. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. Investigating muscle activity involved when standing on ones toes(Ballet dancers). Therefore, 5 trials with 5 samples each make up 25 samples in total. This begs the question, is there an ideal concentration of sucrose for yeast growth? Studying how different carbohydrates in edibles impact the blood sugar levels in humans. Subject to the conditions provided for by applicable Experimental Setup: Focus on how leaves in different conditions vary in their stomatal density. Exemplars. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. How do cleaning products affect the growth of house plants? The challenge is to explain why there might be a change using biology and then to test it using some type of ecological sampling. Athletes perform better if they warm up properly before an event. Remember that these samples are meant to give direction and ideas. The problem of this investigation is that it is difficult to measure rehydration or salinity. 1678+ Video tutorials, 1226+ PDF IB Resources, 195+ Sample IAs, 148+ EEs, 8777+ Sample questions, 653+ quizzes, IB Registration confirmation will be emailed to you. Experimental setup:Find a xerophyte (eg. 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. there Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew Which pigments are made first in a growing leaf, or are all the pigments made at the same time? )/ Studying, Dependent variable:Ventilation rate. 0. 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. Outline the Equipment, time, and resources to keep a check on its feasibility. This is nice project if there is a specific environmental gradient in the site being investigated. 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 . the 5, Effect of BMI on skin surface temperature in various body areas on rate of recovery once exposed to cold. Independent Variable: Different household cleaning products/increasing concentrations of cleaning product. These are all genera and the specific species present definitely vary between cultures. Originally Answered: what are some examples of good biology IA's? Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. Investigation of the functioning of the eyes when using paper or different electronic screens. 16. To get started, you'll need to make your agar and fill some petri dishes. The importance of agricultural microbiology. How does the shade of a leaf relate to the composition of photosynthetic pigments it contains? Experimental setup:Use a potometer to measure the rate of transpiration. Keep the research question brief and relevant. Pour the bacteria onto the solidified agar plate. IB Acronym Glossary - Please help IB Community :) 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. promotional emails that we send to you. By submitting this form, I agree to the data entered being used by Nail IBNSW for sending What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? It is important that you do the work yourself and not just copy the material. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. How do different concentrations of lactases affect the breakdown of disaccharides like lactose in milk effectively? Stomata are the areas of gas exchange in leaves. Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration. 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. Experimental setup:Gather participants for the study and compare how quickly they can catch a ruler (measured in cm). 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. In this post, we outline the different necessary components. While it is an interesting idea, like the example above there are many factors to control in this investigation, which is an interesting modification of a standard lab looking at exercise. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. The existence of living organisms without cells. Place all 5 of the red apples into the test tubes (1 piece for each test tube). I'll start first; for my HL Biology IA, I Investigated the effect of varying wavelengths of light on the growth of bacteria; and ended up getting a 21/24 which is equal to a 7 :) Toothpaste is labelled according to how natural or how chemical the contents are. It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. 19, What is the difference in the CO2 levels exhaled before and after enduring physical exercise? So there we have it! Comparing boys and girls for example will be impossible, unless the sample size is very large. At Lanterna we have hundreds of tutors who smashed Biology. Below is a list of 30+ topic ideas for Biology Internal Assessment: Assessment of the effect of temperature on the vitamin C content of various juices What effect can quick shifts in body posture have on baroreceptor feedback and pulse rate? 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. The procedure used should be well structured. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. opening the floodgates to that sweet 45! 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! 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. Coli bacteria using a micro pipette. Legal 12 Investigation ideas with a biological twist. Then is is going to be a challenge to design a method of data collection which controls all the possible variables. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. (Use egg as imitation of tooth). Enter your email and tell us where to send them! Introduction Other possibilities are paper simulations, e.g. 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. All rights reserved. Topics about Biology, we've collected for you from our best Biology papers samples! Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. But how do antibiotics affect the growth or successful germination of plants? 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. This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. 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. Decomposition is crucial to the cycling of elements, such as carbon from one living organism to another. This is an investigation to test a hypothesis that reaction time wll slow down with age. CareerBuilder TIP. This is an interesting quantitative method to estimate glucose concentration. . 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. Some preparation time will be required to germinate and plant the seeds. | The climate is different at different altitudes and the growing season begins later at high altitude. How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? We use cookies to ensure that we give you the best experience on our website. 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. The stages of embryonic development. The IA explored what affect does Enzyme Trypsin has on protein Casein which is contained in milk. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. Without further adieu, lets dive headfirst into 30+ IB Biology IA ideas for your Biology IA Investigation! The individual investigation should cover a topic that is commensurate with the level of the course of study. 3.2 The More Data, The Better. HL Biology IA Help! This investigation tries to establish a pattern between the weather and the spread of a disease.
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