cactus) and a halophyte (eg. Click, See How do different kinds of toothpaste compare? The first step consists of spitting on the glass and adding a pinch of salt to it. Natural selection - lab bench Which type of water fleas escape predators best? 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. This gives the microbe an advantage when competing for food and water and other limited resources in a particular habitat, as the antibiotic kills off their . Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). These proportions make enough nutrient agar to prepare two petri dishes. Use it to spread the bacteria across the surface of the Petri dish while rotating it. 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. Access them all! It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. classes to learn/preach! IA is one that has been undertaken with complete zeal and enthusiasm. 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. The release of CO2 by the body in the lungs is not simple either, factors to consider include the relative amounts of aerobic and anaerobic respiration, as well as the position of the muscles being exercised. 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. How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? Pay attention to one that is interesting for you, and that you might have ideas on how to develop the topic on. 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. Preview 1 out of 13 pages 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? Don't do it! Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. Different plants that live in different conditions will have different requirements for gas exchange. 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. Enter your email and tell us where to send them! We have a team of awesome tutors ready to help you ace the IB. For instance, if you choose to investigate how light levels affect the predation of peppered moths, you could set a background of you have gained a fascination for that species ever since it was introduced to you for some explanation in your regular classes and eventually give more scientific basis for your choice. 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 They know exactly how to get a 7 in your IA and exam and can give you tips and tricks on how you can do the same. Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! The 80 Most Common IB Biology Exam Questions! Antibiotics. 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. 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. 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. A full experimental setup can be found on this link. Some preparation time will be required to germinate and plant the seeds. In line with the IB Learner Profile, "Act with integrity and honesty". IB Biology IA Ideas wont strike out of the blue, but heres a list of. How does different conditioners affect the strength of hair? Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? By submitting this form, I agree to the data entered being used by Nail IBNSW for sending Level of passive aggression in individual sportsmen is found higher. 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. The biological explanation of why blood pressure might change when reading may be tenuous. Where do you even begin such a task? These are just some of the questions which will need answering. Therefore, 5 trials with 5 samples each make up 25 samples in total. How do you even choose a topic? Are you struggling with choosing your topic for your IB Biology IA? 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. The individual. The challenge will be in deciding which concentrations to test and in explaining the results. The five assessment criteria are personal engagement, exploration, analysis, evaluation and communication. Take inspiration from these and research further to land on that one idea that gets you going! How effective are synthetic antibacterial products compared to natural antibacterial products against the growth of Cut bacterium acnes? While having multiple trials is necessary for the investigation, each trial should also have multiple samples. 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. 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. A quart-sized bowl works great. This investigation is Design an experiment to investigate a factor which affects the precision of colour vision, age, tiredness, gender, eye colour, etc. 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. disinfectant, rum, vodka, etc.). It belongs to the family of Enterobacteriaceae where most of them are harmless. Exemplars. 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: Carry out an experimental investigation in the laboratory or Draw interpretation from a credible database or Make a detailed analysis using a simulation/modeling. The distinctive features of human physiology. The IA explored what affect does Enzyme Trypsin has on protein Casein which is contained in milk. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. 5 years ago. Use a clean, microwave-safe container to mix the agar with water and then boil it. Nice to see you here. Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? | To get started, you'll need to make your agar and fill some petri dishes. Background Information: There are a lot of microscopic organisms and other miniaturized scale creatures living in our mouth. Some plants grow well in coastal soils with igh salt concentrations but others don't. This creates fermented products. Posted October 26, 2015. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? 15, Analysing the impact of river pollution on marine life. 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. But how do we get started on a lab report and, crucially, what should we write about? 7, How do the respiration rates of bakers yeast and wine yeast in various sugar solutions compare? Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. 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. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. Other possibilities are paper simulations, e.g. 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! 1678+ Video tutorials, 1226+ PDF IB Resources, 195+ Sample IAs, 148+ EEs, 8777+ Sample questions, 653+ quizzes, IB Place all 5 of the red apples into the test tubes (1 piece for each test tube). IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . Registration confirmation will be emailed to you. 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? Finding how the respiration rates of bakers yeast and lager and wine yeast in various sugar solutions compare. Contact, Twitter They cause our teeth to rot, shaping plaque and causing awful breath. The video breaks down the c. Bananas lend themselves to this because their skin changes colour. 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. The internal assessment requirements are the same for biology, chemistry and physics. However, if you are still feeling lost, make sure to look at some of the strategies while choosing a good biology research paper topic. (16 More IB Resources), See Experimental Setup: Focus on how leaves in different conditions vary in their stomatal density. If you are a student and wish to access these resources, ask your school to subscribe. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. 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 Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. . Lactobacilli reproduction and growth is the cause of milk spoilage. To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. 17, What is the effect of pests on the diversity of plants in a lawn? Investigating how tuberculosis's Incidence is related to a countrys Human Development Index(HDI) level. The will (hopefully) impact the success of germination. This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. and uncertainties. Measuring the energy content of a packet of Cheetos 30 IB Biology IA Topic Ideas 1. The use of a transect of transects will be useful for the sampling. Challenge: Gathering enough data, Pollution affecting species growth. Extract your own DNA. The difficulty begins with identifying the genres in a scientific way. If you continue to use this site we will assume that you are happy with it. Constraints, if any, need to be mentioned as well. The procedure used should be well structured. . You certainly dont want to miss out on these! All rights reserved. Lost your password? Investigation of the functioning of the eyes when using paper or different electronic screens. Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. Perhaps another research question will be better, something linked to hormones, or to physical activity. Controlling factors which can affect blood pressure could be an investigation in itself! Get your own tutor today! 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. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. Subject to the conditions provided for by applicable 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. [], We all know that scoring superbly on internal assessments is a great way to boost our IB grades. If the algae is green, then the maxima should be over in . 30 Biology IA topic ideas to get your lab report started! These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. 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). Vegetables decay over time but how can we slow down the process? However it could be really interesting to compare simple behaviour in animals. There could be some biology theory applied to the plants leaves, or roots. One nice idea might be to see if the growth in the lungs' vital capacity correlates better with the circumference of the skull or the length of the legs in children of different ages. Topics about Biology, we've collected for you from our best Biology papers samples! 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. In this investigation a change in a physiological feature is explored. The IB advise student and teachers, each year, to avoid this sort of lab. For strict autotrophic organisms - Only inorganic compounds. 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. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. Alcohol is a common active ingredient in many of the commercial mouth washes. 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. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. This is an investigation to test a hypothesis that reaction time wll slow down with age. Student work is internally assessed by the teacher and externally moderated by the IB. You can find more information here, Independent Variable: Different Antibiotics, Different Seeds, Dependent Variable: Success of Germination, Rate of Germination. The effect of techniques used to preserve milk on its ability to support the growth of probiotic bacteria. How does the acidity of different beverages affect the deterioration of tooth enamel? They investigate the hypothesis that. Measuring theses factors might be tricky and will involve some testing, although using a phone camera or a video camera could help. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Many say that as we get older, our reaction times slow down, see if this is true! 30 Biology IA topic ideas to get your lab report started! . Read more here, Dependent Variable: Rate of transpiration (measure with a Potometer), Challenges: Getting the plants, Setting up a Potometer. Get up to 300 bonus credits with our tutoring packages! Toothpaste is supposed to block bacterial growth. Designed by Harvard tutors to allow you exceed beyond expectations. Population growth curves. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. Along with a bundle of, with helpful examples! Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill it. (Write your IA title!) The external assessment of biology consists of three written papers. 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. It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. Still feeling a bit uneasy about the task ahead? 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. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. 3. This is an interesting topic of investigation which relates to osmosis and ecology. There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration.