Profile. 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. At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. Population growth curves. Student work is internally assessed by the teacher and externally moderated by the IB. This FREE guide reveals the most powerful information for boosting your extended essay score and Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! to inspire and stimulate your grey cells! 16. We have a team of awesome tutors ready to help you ace the IB. How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the IB Biology Diploma Programme Subject, its objectives, partwise breakdown, and what IB expects of you. Pease comment on broken links and suggest alternative ideas in the comments. Challenge: Gathering enough data, Pollution affecting species growth. IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc 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. 30 Biology IA topic ideas to get your lab report started! Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. 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. Perhaps another research question will be better, something linked to hormones, or to physical activity. 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. The different pH levels are pH 1, 3, 5, 7, 11, and 14. How does the concentration of zinc chloride affect the growth of plaque? If you continue to use this site we will assume that you are happy with it. Need inspo for Physics too? 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. These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. 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. Is it possible to increase brainpower? Read more about it here. They are produced in nature by soil bacteria and fungi. Exploring how the Water Quality Index (WQI) is affected by water obtained from Chemical Industries/Sewage Treatment Plants. 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. Paper 2 contains short-answer and extended-response questions on the core (and Additional Higher Level (AHL) material . However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. Independent, Dependent variables need to be highlighted, as should the hypothesis. Where do you even begin such a task? (16 More IB Resources), See Get your own tutor today! It is important that you do the work yourself and not just copy the material. Test how different household cleaning products affect seed germination! The data must be analysed by the student and tables / graphs etc. Experimental setup:Find a xerophyte (eg. Controlling factors which can affect blood pressure could be an investigation in itself! tillu22. These are all genera and the specific species present definitely vary between cultures. Hurry, this offer ends on January 17th! 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. So there we have it! 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 siging up, I agree to Lanternas The task will have the same assessment criteria for SL and HL. 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. For this experiment, youll investigate how different variables affect the rate of decay! (Use egg as imitation of tooth). Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. One possible solution is to measure another (or some other) factors about the body and look for a correlation. 6, How does sudden change in body position affect heart rate and baroreceptor feedback? It is very easy to extract DNA at home just using everyday kitchen supplies. The Aim answers Why while the Research Question answers the What. This is a simple experiment to carry out, but a difficult experiment to get good controlled data for. The individual investigation should cover a topic that is commensurate with the level of the course of study. investigation should cover a topic that is commensurate with the level of the course of study. 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. Antibiotics are used to treat plants for bacteria. As the cell membrane disintegrates, alcohol can then enter the cell and . 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 Can the max performance be measured best using max heart rate or maximum speed? Browse thousands of Internal Assessment, Extended Essay, and TOK examples. 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. The importance of agricultural microbiology. Use it to spread the bacteria across the surface of the Petri dish while rotating it. Some diseases spread through direct contact, others are transmitted by an insect vector. 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. Then is is going to be a challenge to design a method of data collection which controls all the possible variables. This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. 30+ New IB Biology IA Ideas. 17, What is the effect of pests on the diversity of plants in a lawn? The Aim answers Why while the Research Question answers the What. Pay attention to one that is interesting for you, and that you might have ideas on how to develop the topic on. 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. IB HL Biology IA Proposal - The effect of lactase on various percentages of milk The digestive - Studocu the effect of lactase on various percentages of milk the digestive enzyme lactase breaks down sugar in milk called lactose, in order to produce glucose. In paper 1 there are 30 (at SL) or 40 (at HL) multiple-choice questions. IB Biology IA, EE on enzymes kinetics amylase using Visible spectrophotometer EE and IA on enzyme study is safe, easy and doable for IB students Starch digestion using Amylase Source for amylase from bacteria, malt or salivary amylase. It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. 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. There are some quite nice online tests of colour vision, and also many telephone apps. How does stomatal density change according light exposure of red and blue light? 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. promotional emails that we send to you. But how do we get started on a lab report and, crucially, what should we write about? This is a great idea, but it could be complex and time consuming depending on the lab. 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. | We use cookies to ensure that we give you the best experience on our website. Some preparation time will be required to germinate and plant the seeds. Remember! which are specifically designed for self study and revision. 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. Of course, you can use any of our topics for free. How does the composition of soil affect the growth of runner Plants from the original plant? The stages of embryonic development. Investigation of the functioning of the eyes when using paper or different electronic screens. 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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