Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. 3. . These ideas are meant to give you a little head start along this path; your final IB Biology Investigation idea is your interpretation of one. The first step consists of spitting on the glass and adding a pinch of salt to it. IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc Here is a list of top 22 Biology Internal Assessment (IA) ideas: IB ++tutors is a Canadian company that is committed to providing global, high-quality IB private tutoring services by IB expert tutors. )/ Studying, Dependent variable:Ventilation rate. The data must be analysed by the student and tables / graphs etc. It is important to set the Research Question in the background of the chosen topic. At this point, all apparatus should have been properly set-up and the experimentations should be able to commence. In general, keep in mind that for your Chemistry IA we want to measuring how changing one variable has an [], Choosing where to start with an IA can be the hardest part, and this is definitely true for the Physics IA. 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. Legal Different plants that live in different conditions will have different requirements for gas exchange. After use of the cell phone, bacterial contamination of the physicians" hands was found in 38 out of 40 cases.In this experiment of prokaryotes students take samples from their mobiles phones and grow prokaryote colonies on agar plates. The individual investigation should cover a topic that is commensurate with the level of the course of study. Read more about it here. HL Biology IA Help! Selecting an IBxq Biology IA idea has never been easier! 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 . 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. HL Biology IA Help! Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. opening the floodgates to that sweet 45! To find out more, see our. IB Elite Academy online tutors provides hundreds of IB Biology IA ideas at both IB Biology higher level, IB Biology standard level. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. Exemplars. | Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. An important thing to note here is that although you are allowed to take inspiration from existing research, papers/journals, you are expected to give a novel perspective to the idea while producing it in your investigation. 12, What happens after the best-by date of dairy products? Below you will find science fair project ideas primarily related to biology. the Experimental setup:Place a corn seed in a dark cupboard with a single light source. Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. Alcohol is a common active ingredient in many of the commercial mouth washes. 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. 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. Change the different conditions in which the plants are found as well as the species. 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! IA Biology HL 6 newsletters and promotional offers. Subject to the conditions provided for by applicable Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? So there we have it! Avoid any investigation where you are getting friends to drink Gatorade and measuring some unrelated but easy to measure factor, like pulse rate. Tip 1: The level of interest matters. Independent Variable: Age, Tiredness, Gender, Eye Colour. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. We look forward to joining the Lanterna and being part of your success. Of course there will be other factors to consider, for example local feature of the habitat where the plants are growing and the aspect of the flowers' location, not to mention grazing and grass cutting. Decomposition is crucial to the cycling of elements, such as carbon from one living organism to another. Are you looking for some IB Biology Internal Assessment (IA) ideas? Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. Independent Variables: Temperature, Sunlight variation, Skimmed vs Whole, Dependent Variable: Rate of bacterial growth (on agar plates), pH of milk. 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. Biology IA Ideas with Independent Variables 1. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. This investigation tries to establish a pattern between the weather and the spread of a disease. Need inspo for Physics too? They are the foundation of food chains in almost every ecosystem. This investigation relies on the recording of abiotic data and data about the stage of the flowering cycle using the number of flowers / fruit / buds etc in a single species at different altitudes up a mountain. Lots of scope but not an easy investigation to complete in the time, in 12 pages. The internal assessment requirements are the same for biology, chemistry and physics. Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. You can find more information here, Independent Variable: Different Antibiotics, Different Seeds, Dependent Variable: Success of Germination, Rate of Germination. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. 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. Once spread on the soil, compost and manure are broken down into minerals by decomposing bacteria and fungi, as well as by . Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. 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. 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. Without further adieu, lets dive headfirst into 30+ IB Biology IA ideas for your Biology IA Investigation! 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 . Teens can work to find out why certain plants present certain colors. A Selection of Topics for a Biology Essay. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. How do halophyte seeds respond to increasing salt concentrations compared to normal seeds? 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. 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. 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? Challenge: Gathering enough data, Pollution affecting species growth. Are you struggling with choosing your topic for your IB Biology IA? The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. Neither should the idea be too generic and nor too simplistic. should include all the normal conventions of d.p. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. 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. Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. Biology IA Checklist for HL & SL The International Baccalaureate Biology Internal Assessment makes up 20% of the final grade achieved by Biology HL and Biology SL students. IBDP Biology InThinkingSubject Sites for teachers & their classes The external assessment of biology consists of three written papers. Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. Perform the relevant analysis, keeping in mind the research question, and conclude. How does cumin and turmeric powder, in comparison to indigestion tablets, affect the rate of neutralization of hydrochloric acid, measured by the difference of change of pH levels in 5 minutes? Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. 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? To measure the rate, you can either measure how quickly different species grow, or one of the other factors described below. Get your own tutor today! IB Acronym Glossary - Please help IB Community :) Some preparation time will be required to germinate and plant the seeds. Keep the research question brief and relevant. Click, See One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. Understanding some basic biology and the processes of plant breeding can help individuals understand GMOs and their safety. [], We all know that scoring superbly on internal assessments is a great way to boost our IB grades. 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. It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. The focus is on the parts of the cell and the interaction of the cytoplasm and the membrane as the topic ideas below show: The Pros And Cons Of The Cytoskeleton System Through The Lens Of Cell Motility. 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! A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. There are obviously many different factors influencing the rate of ventilation, you can investigate which those are! How effective are synthetic antibacterial products compared to natural antibacterial products against the growth of Cut bacterium acnes? How does different conditioners affect the strength of hair? Preview 1 out of 13 pages Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! Ventilation rate is a measure of how quickly you breathe. Experimental setup:Gather participants for the study and compare how quickly they can catch a ruler (measured in cm). Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. Experimental setup:Follow this link to for more information of modelling! Experimental setup:Use a potometer to measure the rate of transpiration. Experimental setup:Set up an experiment that measures the ethylene or CO2 levels of fruits over time, and expose different fruits to different independent variables. If the algae is green, then the maxima should be over in . and uncertainties. Dependent Variable: Degree of growth of plant towards a light source. 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. Remember! They found that they could propagate their leavening by saving a bit of unused dough to sow the . The practical methods to germinate seeds and select appropriate salt concentrations will present definite challenges but this is an interesting study for students living near the coast, or in places where salt is applied to the roads in winter. This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Still feeling a bit uneasy about the task ahead? 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 . This is a list of possible sites for students to use as online labs. Photo. 17, What is the effect of pests on the diversity of plants in a lawn? 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. Student work is internally assessed by the teacher and externally moderated by the IB. The difficulty begins with identifying the genres in a scientific way. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? HL Psychology or HL History? How does the acidity of different beverages affect the deterioration of tooth enamel? 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. 14, What is the respective change of allele frequency when initial frequencies are manipulated? How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? How does the composition of soil affect the growth of runner Plants from the original plant? In accordance Personal engagement, exploration, analysis, evaluation, and communication. IA Review. Help us improve CareerBuilder by providing feedback about this job: Report this job Job ID: 9096_4208814345. 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. IB Biology IA Ideas wont strike out of the blue, but heres a list of. Independent Variable:Temperature, Oxygen availability. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? Auxin hormone is largely responsible for controlling the direction of plant growth. Sometimes sites go ofline or change their address. location on shore. 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. Bananas lend themselves to this because their skin changes colour. 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. However it could be really interesting to compare simple behaviour in animals. which are specifically designed for self study and revision. Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? Independent Variable: Halophyte seed vs Normal Plant seed. State your hypothesis; it is important in the context of your research. Investigating muscle activity involved when standing on ones toes(Ballet dancers). Get for free what others have paid $100s in tuition The use of a transect of transects will be useful for the sampling. Water Bath Method - Loosen the agar bottle cap, but do not remove it completely. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. Stuck for Ideas planning your Biology IA? 4, How does varying the gel concentrations of agarose affect DNA migration through a gel? 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. Test how different household cleaning products affect seed germination! 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. Do individuals of different types all behave in the same way to a stimulus. Its very important that you consider if whether you can apply these topics to your own life, as this shows personal engagement. It may even be possible to find a database of measurements of children of different ages. Enter your email and tell us where to send them! Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? Don't do it! This could be a difficult investigation to do quantitatively unless there was a longer time period available to observe growth. 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. location on shore. compare? These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. There are biology topics that can be connected to culture, music, language, and the like. Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? 6 years ago. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. But how do we get started on a lab report and, crucially, what should we write about? 2. Several university Extension services are now offering easy-to-use websites for those . The problem of this investigation is that it is difficult to measure rehydration or salinity. Download our Guide: How to Write a Perfect Biology IA (Click Here), If youre interested in getting additional support for your Biology IA, we have a team of expert IB Biology tutors that can help you plan, structure and execute your assignment. 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). 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. 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! Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill it. Homemade extraction of your own DNA. Read more about it here. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at 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.

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