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. 20 Fun and Interesting Biology Experiments for High School To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. . Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. These ideas are for you to start exploring and begin! To find out more, see our. 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. Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. Challenge: Gathering enough data, Pollution affecting species growth. IB Biology IA topics: Biology being a scientific course encompasses a lot of investigation and research. Below you will find science fair project ideas primarily related to biology. Can the max performance be measured best using max heart rate or maximum speed? www.thinkib.net. 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. Studying how sudden workout affects the heart rate and baroreceptor feedback. One possible solution is to measure another (or some other) factors about the body and look for a correlation. Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. Experiment with Fermentation using Kombucha - RockEDU 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. We have a team of awesome tutors ready to help you ace the IB. To make things as simple as possible for you, we've put together a list of biology research project ideas. 10, Can we slow down the decaying times of vegetables? To seek where great ideas come from and change the way teachers/students learn in the 21st century. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). 7, How do the respiration rates of bakers yeast and wine yeast in various sugar solutions compare? then this could be a very good study. To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. Before you can grow bacteria, you'll need to prepare sterile culture dishes. Experimental setup:Follow this link to for more information of modelling! Investigating muscle activity involved when standing on ones toes(Ballet dancers). Top 80 Most Common IB Biology Exam Questions. But how do we get started on a lab report and, crucially, what should we write about? Antibiotics are used to treat plants for bacteria. You. Studying how different carbohydrates in edibles impact the blood sugar levels in humans. IB Biology Internal Assessment - AMAZING WORLD OF SCIENCE WITH MR. GREEN We know that our topic has to be somewhat related to the syllabus, but where should we focus? Remember that these samples are meant to give direction and ideas. 23 Ideas for Science Experiments Using Plants - ThoughtCo 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. Login length need to be from 3 to 40 characters, Password length need to be from 8 to 40 characters. Math solutions -. Decomposing bacteria and fungi are organisms that help the process of decomposition. The role of a warm up in sport is clear. PDF SIENE IA UIDE SCIENCE IA GUIDE - Lanterna Still feeling a bit uneasy about the task ahead? 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. Does it matter what type of light the plant is exposed to affect the growth of auxin? Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! Test the stomatal density of different leaves exposed to variable conditions using a microscope. 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. Of course, you can use any of our topics for free. This is an interesting topic of investigation which relates to osmosis and ecology. You certainly dont want to miss out on these! Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Get up to 300 bonus credits with our tutoring packages! Observe how changing the colour of the light source impacts the success of phototropism! 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? 15, Analysing the impact of river pollution on marine life. We use cookies to ensure that we give you the best experience on our website. Other possibilities are paper simulations, e.g. Subject to the conditions provided for by applicable Originally Answered: what are some examples of good biology IA's? Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. This is a list of possible sites for students to use as online labs. Independent Variable: Age, Tiredness, Gender, Eye Colour. Passion is fundamental in research, after all. Some preparation time will be required to germinate and plant the seeds. Introduction 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. (1 More IB Past Papers). 1. Click, See This is a great idea, but it could be complex and time consuming depending on the lab. 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. 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. 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. 100 Biology Research Topics Ideas For Students Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! How do you even choose a topic? The biological explanation of why blood pressure might change when reading may be tenuous. Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. 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. Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . Proper research on your part is a bare minimum, and the rest follows. The challenge is really how to control the temperature of the fruit (or the light) for a long period of time, perhaps 2 weeks. The video breaks down the c. 3. These Biology IA Ideas Will Help You Get A High Grade In Your Biology IA. Use it to spread the bacteria across the surface of the Petri dish while rotating it. Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. All rights reserved. OP. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. An ideal IA idea is one that reeks of originality and leaves room for proper investigation and analysis in the process. This begs the question, is there an ideal concentration of sucrose for yeast growth? 1, Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. investigation should cover a topic that is commensurate with the level of the course of study. IB Biology IA Ideas wont strike out of the blue, but heres a list of 30+ IB Biology IA ideas to inspire and stimulate your grey cells! 2. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. Maybe you can suggest that to your teacher? Preview 1 out of 13 pages Exploring how the Water Quality Index (WQI) is affected by water obtained from Chemical Industries/Sewage Treatment Plants.