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. 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. Other possibilities are paper simulations, e.g. 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. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. 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. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). 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. 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. Biology_IA.pdf - IB Biology HL II - Internal Assessment Click here to reset it. We use cookies to ensure that we give you the best experience on our website. IB Biology IA: Enzymes Institution GEMS World Academy Level 7 IA (22/25 points) conducted on topic 2.5 (enzymes). Investigation of the functioning of the eyes when using paper or different electronic screens. with current laws and regulations, you can unsubscribe at any time by clicking on the link in Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). Experimental setup:Gather participants for the study and compare how quickly they can catch a ruler (measured in cm). How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. 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. 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. To people who got a 7 in their HL Biology IA, what topic did - Reddit Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. To get started, you'll need to make your agar and fill some petri dishes. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. 12 Investigation ideas with a biological twist. Perform the relevant analysis, keeping in mind the research question, and conclude. 1. Athletes perform better if they warm up properly before an event. It may even be possible to find a database of measurements of children of different ages. Top 100 Biology Topics | Thesis Writing Ideas Every year the examiners' report mentions problematic Investigations, those which are unethical, or standard labs which are not applied to any specific interest. HL Psychology or HL History? 12 Examples and Tips for IB Biology IA | MakeSensei Remember that these samples are meant to give direction and ideas. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. 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? If the algae is green, then the maxima should be over in . To seek where great ideas come from and change the way teachers/students learn in the 21st century. Kimchi is a traditional fermented cabbage dish from Korea. 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! Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. Passion is fundamental in research, after all. Biology IA Topics: 20+ Great Ideas to Get You Started The first step consists of spitting on the glass and adding a pinch of salt to it. Outline the Equipment, time, and resources to keep a check on its feasibility. There are biology topics that can be connected to culture, music, language, and the like. PDF SIENE IA UIDE SCIENCE IA GUIDE - Lanterna Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. By siging up, I agree to Lanternas Below you will find science fair project ideas primarily related to biology. Understanding some basic biology and the processes of plant breeding can help individuals understand GMOs and their safety. How does different conditioners affect the strength of hair? How does the acidity of different beverages affect the deterioration of tooth enamel? Bacteria - Definition, Shapes, Characteristics, Types & Examples 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). 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. What are some potential topics for my MATH IA that related to biology This investigation is Design an experiment to investigate a factor which affects the precision of colour vision, age, tiredness, gender, eye colour, etc. 170+ Biology Research Topics for Students - EduBirdie.com Don't do it! Avoid any investigation where you are getting friends to drink Gatorade and measuring some unrelated but easy to measure factor, like pulse rate. 30 Biology IA topic ideas to get your lab report started! 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. Controlling factors which can affect blood pressure could be an investigation in itself! On this note, we wish you all the very best for your IB Biology IA Journey :). Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. The performance in internal assessment at both SL and HL is marked against common assessment criteria, with a total mark out of 24. 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. CareerBuilder TIP. They investigate the hypothesis that. You certainly dont want to miss out on these! But how do we get started on a lab report and, crucially, what should we write about? Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. Remember! Read more about it here. | 1678+ Video tutorials, 1226+ PDF IB Resources, 195+ Sample IAs, 148+ EEs, 8777+ Sample questions, 653+ quizzes, IB Before you can grow bacteria, you'll need to prepare sterile culture dishes. Water Bath Method - Loosen the agar bottle cap, but do not remove it completely. In line with the IB Learner Profile, "Act with integrity and honesty". 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. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. The Biology of Sourdough | Discover Magazine This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. Browse. Comparing the buffering actions of various substances: antacids, milk, sodium bicarbonate, sodium carbonate, detergents, etc. , its objectives, partwise breakdown, and what IB expects of you. 23 Ideas for Science Experiments Using Plants - ThoughtCo Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill 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. IA Advice & Ideas; Help! Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. 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 . The external assessment of biology consists of three written papers. 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. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. should include all the normal conventions of d.p. there Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew The challenge will be in deciding which concentrations to test and in explaining the results. Studying the effect of enzymes on Cheese production. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. How to Choose Interesting Biology Research Topics? - MyAssignmenthelp.com This creates fermented products. Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. At Lanterna we have hundreds of tutors who smashed Biology. Population growth curves. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Hurry, this offer ends on January 17th! When looking for information, be sure to seek information from institutions and agencies that share science-based, objective results. disinfectant, rum, vodka, etc.). It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. One idea would be to make a series of soils using active compost and sand. Independent Variable: Temperature, Salts, Humidity, Oxygen availability, Dependent Variable: Rate of Decay measured by pH, mass or temperature change. It belongs to the family of Enterobacteriaceae where most of them are harmless. Keep the research question brief and relevant. http://www.xrite.com/online-color-test-challenge. 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! Designed by Harvard tutors to allow you exceed beyond expectations. Does it matter what type of light the plant is exposed to affect the growth of auxin? Lots of plant ideas in the questions and answers, https://sciencecourseware.org/BiologyLabsOnline/, Mean arterial pressure calculator online -, Sciencelab Chemical data sheets MSDS (Materials Safety data sheets). While these organisms inhibit the growth of many pathogenic bacteria and are also inten- tionally employed to ferment milk to make other dairy products such as yogurt and cheese, they can also induce Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at terms of service. assessment, worth 20% of the final assessment, consists of one scientific investigation. to inspire and stimulate your grey cells! 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 :) 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. It is thought that there may be some aggressive behaviour depending on the qualities of the sportsman, trainer's tactics, and sports fan and media pressure. It is important that you do the work yourself and not just copy the material. IB Biology IA: Enzymes - IB Biology IA: Enzymes - Stuvia US If you continue to use this site we will assume that you are happy with it. What effect do conditions, such as temperature, sunlight have on the rate of spoilage. Free Biology Topics for Writing - Essay Samples and Research Paper Examples Senior Scientist | Biology-Discovery - Animal Health Different plants will change their transpiration rates in response to the environment. Experimental setup:Use a potometer to measure the rate of transpiration. Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? 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. You will find 100 topics on various subjects below. 10, Can we slow down the decaying times of vegetables? 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. (Use egg as imitation of tooth). biology IA --- bacteria ? - Biology and ESS - IB Survival Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. (16 More IB Resources), See I got a 7 for Biology HL and my IA was awarded a 22/24. Are you struggling with choosing your topic for your IB Biology IA? Subscribe and get the latest IB guides, notes,news, tips and product updates. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! location on shore. 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? IA Review. Clearly state your interest. Independent Variable: Halophyte seed vs Normal Plant seed. 3. . 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. Keep the research question brief and relevant. Toothpaste is labelled according to how natural or how chemical the contents are. 5 DIY Biology Experiments You Can Easily Do at Home - Labiotech.eu This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. This is an interesting quantitative method to estimate glucose concentration. (DOC) BIOLOGY Practice IA | Riona Claire - Academia.edu Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. Are you looking for some IB Biology Internal Assessment (IA) ideas? Is there an optimum intensity of warm up to achieve best performance? Experimental setup:Find a few friends willing to participate and measure their ventilation rates with a respirometer (the human version) and then subject them to different stimuli. My IA was on bacteria by the way if you have any questions. This was my Biology HL IA which was given a 21/24 by the IB. This is a nice wet laboratory project and there are some simple ways to measure the growth of the bacteria but these can be fiddly to work out, and concentrations of bacteria used in inoculations will need working out. Tips for the Biology IA - IBlieve Experimental setup:In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. Finding a topic is one of the - if not THE - most important part of writing your IA so we want to make sure that you get it right! Get up to 300 bonus credits with our tutoring packages! IB Biology Internal Assessment - AMAZING WORLD OF SCIENCE WITH MR. GREEN Biology HL IA Idea Proposal - Bacteria vs Fertilizer - Stuvia Place all 5 of the red apples into the test tubes (1 piece for each test tube).