Internal assessments make up for 20% of the grade and are all about scientific writing and research. 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. On this note, we wish you all the very best for your IB Biology IA Journey :). Access them all! If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. Copyright 2023 Get the grade you deserve. To seek where great ideas come from and change the way teachers/students learn in the 21st century. Reply 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. Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. The internal assessment requirements are the same for biology, chemistry and physics. Do individuals of different types all behave in the same way to a stimulus. How does stomatal density change according light exposure of red and blue light? Observe how changing the colour of the light source impacts the success of phototropism! First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. In paper 1 there are 30 (at SL) or 40 (at HL) multiple-choice questions. OP. 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. Every year the examiners' report mentions problematic Investigations, those which are unethical, or standard labs which are not applied to any specific interest. A well. To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. This is a great idea, but it could be complex and time consuming depending on the lab. compare? Exploring how the height of plants is affected by Nitrogen or Fluoride based fertilizers used. 0. . Reply 7. Lost your password? The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. 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. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. This is an interesting quantitative method to estimate glucose concentration. Click, See Then use agar plates and bacteria to test their effectiveness by seeing how many bacteria grow in the different plates! Test the stomatal density of different leaves exposed to variable conditions using a microscope. So there we have it! | Dont panic weve got you covered. How does the percentage of salinity in water affect the rate of growth of radishes in mass? 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. Read more here, Dependent Variable: Rate of transpiration (measure with a Potometer), Challenges: Getting the plants, Setting up a Potometer. with peppered moth types. Studying how different carbohydrates in edibles impact the blood sugar levels in humans. 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. Don't do it! This investigation tries to establish a pattern between the weather and the spread of a disease. 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. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. The five assessment criteria are personal engagement, exploration, analysis, evaluation and communication. Place all 5 of the red apples into the test tubes (1 piece for each test tube). IA is one that has been undertaken with complete zeal and enthusiasm. If you insist on trying this then be sure to cover the control of variables, there are a lot which can affect the heart. Vegetables decay over time but how can we slow down the process? A challenge is to work out the biological reasons behind you hypothesis, and it may be a good idea to branch away from toothpaste to test a specific chemical from the ingredients in the toothpaste. Stomata are the areas of gas exchange in leaves. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. By submitting this form, I agree to the data entered being used by Nail IBNSW for sending These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. Teens can work to find out why certain plants present certain colors. 1. It is a complex branch of biology that studies the smallest units and the living organisms. The individual. 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? www.thinkib.net. Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. IB Biology IA Ideas wont strike out of the blue, but heres a list of. 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. Topics about Biology, we've collected for you from our best Biology papers samples! Click here (amylase) or Click here ( pancreatin amylase) from Carolina. Need inspo for Physics too? Probiotic Frozen Yogurt W. Tungrugsasut1*, C. Wiwat2, V. Srisukh1, K. Thoophaew1, and P. Tippawat1. tillu22. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. 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. It may even be possible to find a database of measurements of children of different ages. Still feeling a bit uneasy about the task ahead? Want some A-quality guidance? Take 10 micro liters of the cultured. Halophytes grow in Salty conditions whereas normal plants dont. 17. There are some quite nice online tests of colour vision, and also many telephone apps. Stir these together well: -teaspoon agar (1 1/5 grams) The biological functions of water. 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'. Can the max performance be measured best using max heart rate or maximum speed? The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. Different plants that live in different conditions will have different requirements for gas exchange. Avoid this type of investigation, . , its objectives, partwise breakdown, and what IB expects of you. How do cleaning products affect the growth of house plants? As the cell membrane disintegrates, alcohol can then enter the cell and . 12, What happens after the best-by date of dairy products? Without further adieu, lets dive headfirst into 30+ IB Biology IA ideas for your Biology IA Investigation! location on shore. There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration. Studying how sudden workout affects the heart rate and baroreceptor feedback. Other possibilities are paper simulations, e.g. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. 30+ New IB Biology IA Ideas. HL Biology IA Help! We hope this article will serve as a foundation for you to get going on that IB Biology IA Investigation of yours! This could be compared to listening to music where research has been done to establish that pulse rate can be affected by music. To measure the rate, you can either measure how quickly different species grow, or one of the other factors described below. This is a list of possible sites for students to use as online labs. I'll do so in a series of questions that will help you probe deeper into your IA. How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Different plants will change their transpiration rates in response to the environment. 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? Coli bacteria using a micro pipette. 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! The data must be analysed by the student and tables / graphs etc. Pour 250 ml hydrogen peroxide of 3% concentration into the 300 ml glass beaker. 30, Exploring mollusc shapes with regards to an external variable e.g. The development of biotechnology. At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. 17, What is the effect of pests on the diversity of plants in a lawn? This FREE guide reveals the most powerful information for boosting your extended essay score and To get started, you'll need to make your agar and fill some petri dishes. Personal engagement, exploration, analysis, evaluation, and communication. Nice to see you here. We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. The milk that they are added to can be preserved in certain ways before the bacteria is added and the growth One idea would be to make a series of soils using active compost and sand. The challenge will be in deciding which concentrations to test and in explaining the results. 1: Cell Biology 1.1: Introduction to Cells 1.2: Ultrastructure of Cells 1.3: Membrane Structure 1.4: Membrane Transport 1.5: The Origin of Cells 1.6: Cell Division 2: Molecular Biology 2.1: Molecules to Metabolism 2.2: Water 2.3: Carbohydrates and Lipids 2.4: Proteins 2.5: Enzymes 2.6: DNA and RNA 2.7: DNA Replication, Transcription and Translation The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. 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. Antibiotics. Plants also play a significant role in the environment by influencing climate and producing life-giving oxygen. are the criteria against which the investigation is assessed. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? 15, Analysing the impact of river pollution on marine life. Many say that as we get older, our reaction times slow down, see if this is true! Challenges: Being consistent in assessing the fruit ripeness. 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. 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. 3.2 The More Data, The Better. legislation, you have rights in relation to your data. The first step consists of spitting on the glass and adding a pinch of salt to it. Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . to inspire and stimulate your grey cells! 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. 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. Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. 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. Clearly state your interest. (Use egg as imitation of tooth). The effect of pets on the diversity of plants in a garden lawn. The Aim answers Why while the Research Question answers the What. To find out more, see our. 9, Do our reaction times slow down with age? Experimental setup:Use a potometer to measure the rate of transpiration. To make things as simple as possible for you, we've put together a list of biology research project ideas. The practice of making sourdough is as ancient as bread itself. cactus) and a halophyte (eg. Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. Using the pipette dropper to suck in 10 ml of the 3% hydrogen peroxide . 20, Testing the effectiveness of different types of toothpaste in inhibiting the growth of different types of bacteria.https://qa.lanterna.com/wp-content/uploads/2019/04/Biology-Revision-Guide-213x300.png, 21, The effect of temperature / light on fruit ripening, 22, Exploring stomatal density in a variety of conditions, 23, Testing the effectiveness of toothpaste types, 24, Investigating the effect of smoke water on the germination and growth of E.pilularis, 25, Exploring the effect of sunlight on biomass, 26, Exploring effect of light levels on the predation of the peppered moth, 27, Investigating the effect of different light intensities on water weeds. 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. There needs to be some clear links to the biology of blood pressure and how exercise affects it. Paper 2 contains short-answer and extended-response questions on the core (and Additional Higher Level (AHL) material . 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 . Background Information: There are a lot of microscopic organisms and other miniaturized scale creatures living in our mouth. at which many forms of bacteria thrive [9]. 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. Use a clean, microwave-safe container to mix the agar with water and then boil it. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. The 80 Most Common IB Biology Exam Questions! Remember that these samples are meant to give direction and ideas. We have a team of awesome tutors ready to help you ace the IB. Perhaps another research question will be better, something linked to hormones, or to physical activity. What is the most effective way of fighting an endemic? 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. One possible solution is to measure another (or some other) factors about the body and look for a correlation. A clear RQ is essential and there are quite a few possibilities. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. reply. Selecting an IBxq Biology IA idea has never been easier! Some preparation time will be required to germinate and plant the seeds. then this could be a very good study. Kimchi is a traditional fermented cabbage dish from Korea. terms of service. 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. (16 More IB Resources), See 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 :) Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. Does the behaviour of an animal change as the population increases? Along with a bundle of, with helpful examples! Selecting an IBxq Biology IA idea has never been easier! Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. 2.1.2 Salt Doenjang is incubated at different salt concentration, controlled by the amount of sodium chloride dissolved in 100 ml of . Experimental setup:In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. You certainly dont want to miss out on these! | newsletters and promotional offers. Narrow down the subject. Browse. IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc NOTES: Probiotics eat the lactose in milk through fermentation. If the algae is green, then the maxima should be over in . Measuring the change in iron levels of avocados as they go through different ripening stages 25. 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. Some assessment of the reliability of the sources will be needed and some discussion of ethics of using someone's data, with their consent, hopefully. 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. Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? Independent Variable: Temperature, Salts, Humidity, Oxygen availability, Dependent Variable: Rate of Decay measured by pH, mass or temperature change. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. Photo. But how do we get started on a lab report and, crucially, what should we write about? 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. It could be used in a wide range of labs. Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. Bacterial Growth and Nutrition | Biology Ideas | Microbiology Media June 22, 2021 by Ruturaj Mundhe Culture media and Bacterial Growth Bacterial Growth and Culture media are solid, semisolid, and liquid nutrient preparations employed for the cultivation of microorganisms. This could be a difficult investigation to do quantitatively unless there was a longer time period available to observe growth. All rights reserved. Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. Are you looking for some IB Biology Internal Assessment (IA) ideas? 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. 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? This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. Your Ultimate Guide for Acing IB Psychology Paper 2, The Perfect Guide to Earn a 7 in your IB Psychology IA, The A to Z Guide for Structuring your TOK Essay for Optimal Success, 7 Different Ways to Make the Most of your IB DP Y1 Winter/Summer Break, How to Stay Sane: A Promising Guide to Stress Management in the IB DP. In this post, we outline the different necessary components. Here the challenge is the exploration section. Constraints, if any, need to be mentioned as well. This is an interesting topic of investigation which relates to osmosis and ecology. Pease comment on broken links and suggest alternative ideas in the comments. Proper research on your part is a bare minimum, and the rest follows. 7, How do the respiration rates of bakers yeast and wine yeast in various sugar solutions compare? 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. Top 80 Most Common IB Biology Exam Questions. . Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. Homemade extraction of your own DNA. Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). 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. 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. The individual investigation should cover a topic that is commensurate with the level of the course of study. 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. There could be some biology theory applied to the plants leaves, or roots.

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