Some preparation time will be required to germinate and plant the seeds. Starting at deep purple, and ending at far red, write down the A values. 0. using potassium permanganate and heating, from a protocol from Science & plants for schools. Remember any participants will need to give written consent before any experimenting, and the mild stress of exam conditions must be harmless. Here the challenge is the exploration section. You will find 100 topics on various subjects below. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. Legal 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. with current laws and regulations, you can unsubscribe at any time by clicking on the link in there Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew 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. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. 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. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? Lots of plant ideas in the questions and answers It is also possible to use this method to study glucose levels in ripening fruit, lactase activity in milk producing glucose or maltase activity in germinating seeds. Still feeling a bit uneasy about the task ahead? The climate is different at different altitudes and the growing season begins later at high altitude. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. We use cookies to ensure that we give you the best experience on our website. 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. 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. Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. 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? Athletes perform better if they warm up properly before an event. should include all the normal conventions of d.p. IA is one that has been undertaken with complete zeal and enthusiasm. This FREE guide reveals the most powerful information for boosting your extended essay score and opening the floodgates to that sweet 45! In accordance Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. Pour the bacteria onto the solidified agar plate. Independent Variable: Temperature, Salts, Humidity, Oxygen availability, Dependent Variable: Rate of Decay measured by pH, mass or temperature change. Are you looking for some IB Biology Internal Assessment (IA) ideas? 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! 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. Designed by Harvard tutors to allow you exceed beyond expectations. Despite so, there are still some that can cause bloody diarrhea, severe anaemia or kidney failure, all in which can lead to death. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. 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. They cause our teeth to rot, shaping plaque and causing awful breath. Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? 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. Introduction This is an interesting quantitative method to estimate glucose concentration. Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. Investigation of the functioning of the eyes when using paper or different electronic screens. In order to do well in any science IA, you need to fulfil the criteria i.e. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! This looks like an interesting topic of study. Using paper chromatography to analyse the various dyes present in different brands of jelly candy. What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? The external assessment of biology consists of three written papers. How does the acidity of different beverages affect the deterioration of tooth enamel? Exploring how the Water Quality Index (WQI) is affected by water obtained from Chemical Industries/Sewage Treatment Plants. How does the composition of soil affect the growth of runner Plants from the original plant? Subject to the conditions provided for by applicable Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. 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. IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. 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. At the end of a long endurance event cramps and muscle fatigue will be evident but this is not possible to recreate in the lab in school. 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. How do halophyte seeds respond to increasing salt concentrations compared to normal seeds? Don't do it! 28, How do different antibiotics interact with the process of seed germination? How does extract of the seeds and the leaves of the moringa plant (herbal medicine) show antifungal activity against the Malassezia yeast (Pittosporum) fungi that causes dandruff? In addition to that, the IA explores how inhibitor ethanol affects the rate of the reaction. Preview 1 out of 13 pages Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. You can visit www.ibbiologytutors.com to register for a FREE demo session.. 24. | Is it possible to increase brainpower? and uncertainties. The procedure used should be well structured. Posted October 26, 2015. Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? 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 Antibiotics are used to treat plants for bacteria. 18, What is the effect of isotonic drinks on rehydration and recovery after exercise? (1 More IB Past Papers). 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. 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. 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. Can the max performance be measured best using max heart rate or maximum speed? Student work is internally assessed by the teacher and externally moderated by the IB. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. Right from neurobiology to the fascinating subjects of the immune system, MyAssignmnethelp.com covers a wide range of biology research topics. One idea would be to make a series of soils using active compost and sand. Therefore, 5 trials with 5 samples each make up 25 samples in total. IA Review. disinfectant, rum, vodka, etc.). InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Narrow down the subject. 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. There are many possible variations, perhaps the presence of animal excrement could be the causal factor, otherwise some species may be more resistant to scratching and disturbance, caged animals can selectively graze on parts of a lawn, just to mention a few ideas. Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . Here are a couple of other ideas you could browse and eventually take inspiration from: We hope these little ideas will help you brainstorm and explore further in the vast yet intriguing expanse, which is Biology. Perform the relevant analysis, keeping in mind the research question, and conclude. 17. Photo. If you continue to use this site we will assume that you are happy with it. HL Biology IA Help! Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). On this note, we wish you all the very best for your IB Biology IA Journey :). Browse these for more information! 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. This investigation tries to establish a pattern between the weather and the spread of a disease. Dont panic weve got you covered. The evolution of parasites. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. While having multiple trials is necessary for the investigation, each trial should also have multiple samples. Browse thousands of Internal Assessment, Extended Essay, and TOK examples. Use the epidemiological data to measure rates of change. 1. How does the percentage of salinity in water affect the rate of growth of radishes in mass? Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. 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). This creates fermented products. It is very easy to extract DNA at home just using everyday kitchen supplies. 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. There needs to be some clear links to the biology of blood pressure and how exercise affects it. Contact, Twitter This is a great idea, but it could be complex and time consuming depending on the lab. Nice to see you here. 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. Keep the research question brief and relevant. Teens can work to find out why certain plants present certain colors. They found that they could propagate their leavening by saving a bit of unused dough to sow the . 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Using the pipette dropper to suck in 10 ml of the 3% hydrogen peroxide . It is a complex branch of biology that studies the smallest units and the living organisms. There are some quite nice online tests of colour vision, and also many telephone apps. This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. The effect of pets on the diversity of plants in a garden lawn. Browse. We have a team of awesome tutors ready to help you ace the IB. Canada: +1 (647) 249-7179USA (WhatsApp): +1 (678) 679-2365edu@plusplustutors.com, 407 Iroquois Shore Rd. Several university Extension services are now offering easy-to-use websites for those . Selecting an IBxq Biology IA idea has never been easier! Of course, you can use any of our topics for free. Login length need to be from 3 to 40 characters, Password length need to be from 8 to 40 characters. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. Vegetables decay over time but how can we slow down the process? Investigate how different species of plants respond differently to environmental stimuli. In this post, we give you 50 IB Biology IA Ideas to help you speed up your research process. 1 Department of Food Chemistry,Faculty of Pharmacy, Mahidol University 2 Department of Microbiology, Faculty of Pharmacy, Mahidol University Abstract Recent trends show that consumers have been searching for functional foods to improve bodily functions and overall health. 16, Determine the effect of glucose concentration on the rate of osmosis. 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. Facebook The internal assessment requirements are the same for biology, chemistry and physics. In this investigation a change in a physiological feature is explored. The challenge is really how to control the temperature of the fruit (or the light) for a long period of time, perhaps 2 weeks. Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! What are you waiting for? While there is a considerable challenge in designing apparatus and growing plants the idea of using plants to filter the water in 'ecological' swimming pools is quite well established. 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. 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. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. 8, How do the buffering actions of milk, yogurt, juices, detergents etc. 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 . Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. State your hypothesis; it is important in the context of your research. Originally Answered: what are some examples of good biology IA's? 17, What is the effect of pests on the diversity of plants in a lawn? Take inspiration from these and research further to land on that one idea that gets you going! 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! 3, Describe how the primary productivity of algae changes with temperature, algae concentration, other aquatic plants, salinity, nutrients, and any other variables you may want to consider. Still feeling a bit uneasy about the task ahead? Experimental setup:construct a seed germination experiment with different seeds and add increasing solutions of NaCl, observing the impact of increasing salt concentration in different seeds. NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. Some plants grow well in coastal soils with igh salt concentrations but others don't. Click here for top-notch IB resources or here to assess how your prep is going! My IA was on bacteria by the way if you have any questions. Remember! Enter your email and tell us where to send them! 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. About us This is nice project if there is a specific environmental gradient in the site being investigated. Get up to 300 bonus credits with our tutoring packages! Lactobacilli reproduction and growth is the cause of milk spoilage. One possible solution is to measure another (or some other) factors about the body and look for a correlation. One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. http://www.xrite.com/online-color-test-challenge. To get started, you'll need to make your agar and fill some petri dishes. Experimental setup: In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. The intra-abdominal Campylobacter infection model facilitates the characterization of peripheral blood leukocyte . tillu22. 4, How does varying the gel concentrations of agarose affect DNA migration through a gel? investigation should cover a topic that is commensurate with the level of the course of study. Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. 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. Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. 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. HL Biology IA Help! To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. Investigating muscle activity involved when standing on ones toes(Ballet dancers). (Write your IA title!) Lots of scope but not an easy investigation to complete in the time, in 12 pages. It may even be possible to find a database of measurements of children of different ages. These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. Want some A-quality guidance? Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? 14. The effect of techniques used to preserve milk on its ability to support the growth of probiotic bacteria. It belongs to the family of Enterobacteriaceae where most of them are harmless. Comparing boys and girls for example will be impossible, unless the sample size is very large. In some other cases E. coli can also cause urinary tract infections. This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. IA Biology HL 6 With all the necessary information at your disposal, it is time to present before you some amazing IB Biology IA ideas to encourage you to put your thinking caps on and take on the challenge with newfound zeal! | They investigate the hypothesis that. Toothpaste is labelled according to how natural or how chemical the contents are. 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.
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