IAs are not easy and should not be simplistic. The packet I gave you contains basic research questions, but you have to modify them to IB standards. Some research on your part is required.
Sample A
Sample B
Sample C
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IB Chemistry G12
Need to know what constitutes a decent IA? Below are links to IAs with teacher comments. This is for you to understand the depth and breadth of the data you want to collect. Your IAs need to be between 9 - 12 pages. You should review these so that you have an idea of what I expect.
IAs are not easy and should not be simplistic. The packet I gave you contains basic research questions, but you have to modify them to IB standards. Some research on your part is required. Sample A Sample B Sample C
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This list is not comprehensive; it is subject to change so check in regularly. If you have questions or additions or suggestions, respond to this blog post.
We will be gone 8 days. You need to pack: Comfortable sneakers, sandals and rain boots (just in case). And socks. Phone chargers. Singapore uses a 220V socket, just like in KSA. Bound spiral notebook with a sturdy water-resistant cover that you can hold in your hand. Pencils & pens. Keep them in a Ziploc bag or pencil case. You can bring your laptops if you choose, but you will not be able to use them during the actual workshops. We will not be carrying them on any of the field visits; they must remain in your hotel room. Details: Umbrella and rain gear – Because of its location, the average temperature in Singapore is steady all year round. It ranges between 25 and 31 degrees celsius and humidity is high, usually between 70% – 80%. It usually rains in the afternoons and early evenings. Trust me when I tell you that when it rains, it bloody rains. So make sure you pack a decent umbrella and other rain gear you think you’ll need. The two main monsoon seasons in Singapore, where it rains more than usual, are December to March and June to September. Mosquito repellant – It’s important to pack a good mosquito repellant and any other pest control products you think you may need, like these ones from Mortein. There are regular sprays done to stay on top of mosquito-born diseases, like dengue fever, but it’s still important for you to take precautions, especially if you’re visiting areas on the outer regions of the island, like the Night Safari and Zoo. Sun-smart gear – You’ll definitely need a hat and sunscreen with high SPF to protect you from sunburn. I always recommend the Cancer Council’s sunscreen as you know it’s good quality. Remember, sunscreen is only as good as its user and it’s up to you to reapply during the day to ensure you don’t get burned. Similarly, a rash-shirt or sun-shirt is a good idea too for those long days by the pool. Remember, cloudy days mean U.V rays! Don’t be deceived if there’s no sun, you can still burn. Heavy-duty deodorant – It’s really important to pack a good quality deodorant as you will sweat more due to the heat and the last thing you need is to be feeling and smelling horrible after a big day walking around in the heat. Swimmers ear medicine – I got a terrible ear infection from swimming and the humidity, which meant my ear didn’t dry out properly. There are products you can buy from a chemist to prevent swimmers ear and treat it quickly if it does happen. Money – Don’t be too concerned about changing a lot of money before you arrive in Singapore. There are ANZ and other ATMs everywhere, they’re safe and easy to use. If you do need to change money, there are money changers everywhere too and again, they’re safe and easy to access. Beware of what you bring into the country – There are strong restrictions on what you can bring into the country, especially around alcohol and cigarettes. It’s really important you thoroughly check the allowances before you enter the country or you could find yourself in trouble! Comfortable, light clothing – Pack light, breathable clothing that isn’t restrictive. I would recommend women packing cotton shirts, skirts and dresses and anything else that is easy to move around in. It really is very hot so it’s not a good idea to try to wear synthetic clothing that clings to your body or causes you to sweat. Comfortable shoes – Pack comfortable shoes for walking around in. Nice clothing – While I always recommend you eat at Hawker Centres and food courts, you may want to treat yourself to a meal at a nice restaurant. Singaporeans take great pride in their appearance and rarely look scruffy, so it’s a good idea to pack one nice outfit to wear to a restaurant. Make a little kit bag – I always have a little bag with some wet wipes and hand sanitiser in it. Freshen up before I touch my food and after I eat, because sticky food on your hands + humidity = nightmare. Wet Wipes/Tissues – If you get out of the main tourist areas and head out to the outer lying areas of Singapore you may find the public toilets a little grubby. I’ve had a few unfortunate moments of being caught without toilet paper, so make sure you have a pocket pack of tissues (or wet wipes) in your bag, just in case. Wet wipes are preferable. Medicines – It’s so easy to buy medicines in Singapore so, aside from your prescriptions, don’t feel like you need to pack absolutely everything. There’s usually a chemist or Watson’s nearby so if you get a tummy ache or headache, you can easily run in and get what you need. I’ve never had any problems getting my ailment communicated to the pharmacist, they’re always great. Plastic bags – Stash some large plastic grocery bags and small sandwich bags in your luggage, they come in so very handy for storing dirty shoes and clothes as well as bars of soap, wet swimwear or leaky toothpaste tubes! From http://littlegreybox.net/2014/11/21/what-to-pack-for-a-trip-to-singapore/ This is the IB Bio Internal Assessment Guide. Read it.
Group 4 Timeline. Look at the description of the timeline as we will MODEL it, but it is from another school's G4 project last year. We will be doing our G4 on phylogenetics and will do our planning here at the school. But this is the format that we will use. What you will be submitting upon return is this G4 Project Reflection sheet. Bear in mind that BEFORE WE LEAVE, you will choose a topic of interest and from there, come up with some sort of research question, hypothesis, and IV/DV/Controls. Once there, you will refine each of these based on the data you collect and the instructions the professors give. I will be checking for the adjustments to your RQs as we complete each workshop. Also bear in mind that the IA requires the use of statistics, which means that you will have TWO hypotheses. The first hypothesis is the one you determine from your research. The second hypothesis MUST BE: Is there a statistical difference between... The way you answer the second hypothesis is through the use of statistical tests, such as the t-test, ANOVA, and/or chi-square. You should be learning about statistics in math studies. The first thing you need to do is research. Here is a link that has 100 questions, but these aren't really good research questions for an IA. However, these questions provide a starting point.
Fragrance structure
Remember, you have to have an independent variable that changes. While you may not be able to do the actual manipulation of your IV, you can ask the instructors to guide you in the right direction so that you can collect plausible data were you to try and make your own perfumes at home. I strongly recommend that you try this when you return. Ask them for instructions and recipes so you can collect data. Potential research questions include: How does changing the temperature affect a fragrance? How does changing the "boiling" or "cooking" time affect a fragrance? How does altitude or climate affect a fragrance? For each of the above, you have to determine the dependent variable based on what effects you're looking for. The instructors can help you with this. Bear in mind that the DV must be a NUMBER and you have to generate a LINE GRAPH to show change. You also have to come up with hypotheses for each research question. The first hypothesis is to predict the outcome. The second is to determine if there is a significant difference between one factor and another factor. The instructors can help you with this. Both of you need to decide today which question you want to focus on so that you can begin doing your background research. By the time you are in the workshop, you should have some idea of what kind of data you should be collecting. I've already given you a list of links to start with. You should also review some academic journals on perfume chemistry, as the IA requires reliable sources and not just websites. Housekeeping: As we are trying to get Q3 complete before the Singapore trip, I have examined the gradebook and discovered you need a quiz in order for your grade to manifest. So today we are taking a 5-question quiz over the first three sections. We will spend 10 minutes reviewing and you'll have 10 minutes max for the quiz. After that, let's make sure you have grades in the gradebook for last week's homework. p. 132 #14-17, p. 136 #18-20 I need your rough drafts today so you can get them back tomorrow. If you don't have them, then you better make sure that final draft is on point. Remember, written labs get sent to the IB for external assessment. Agenda: 1. Quiz 2. Review: Resonance & Giant Molecular Structures 3. Intermolecular forces Lesson Objectives. By the end of this lesson, you should be able to: 1. List and describe all the intermolecular forces and determine their presence in certain compounds. Content Review: Links: VSEPR Theory Molecular Geometry Intermolecular Forces Textbook Readings: Chapter 4. Student Missions: Mission 1: What's Keeping Us Together Other Than Love? Covalent bonds holds atoms together within molecules, but what forces hold molecules together? The answer depends on the polarity and size of the molecules involved, and so said intermolecular forces will vary. The strength of intermolecular forces determine the physical properties of a substance. Volatility, solubility, and conductivity can all be predicted and explained from knowledge of the nature of intermolecular forces. Dispersion forces (aka London forces): These are weak forces of attraction that occur between opposite ends of two temporary dipoles, usually with nonpolar molecules. A dipole occurs when the density of an electron cloud at any one moment be greater in one region of a molecule or atom. These dipoles are called temporary or instantaneous because they do not last long. When temporary dipoles influence the electron behavior of a nearby atom or molecule, induced dipoles result. Examine the images on page 149. Dipole-dipole forces: Polar molecules that have a permanent separation of charge within their bonds as a result of electronegative differences have dipole-dipole attractions. Water has a clear positive end and a clear negative end. This is called a permanent dipole. When it bonds with another water molecule, a dipole-dipole attraction results. The strength varies depending on the distance and orientation of the dipoles. The umbrella term van der Waals includes both dipole-dipole and dispersion forces. Hydrogen bonding: When a molecule contains hydrogen covalently bonded to a very electronegative atom (fluorine, oxygen, or nitrogen), these molecules are attracted to each other by a particularly strong force called a hydrogen bond. These are specific instances of dipole-dipole attraction. The large electronegativity difference results in the electron pair being pulled away from hydrogen. It now exerts a strong attractive force on a lone pair of electrons in a nearby molecule. Hydrogen bonds are the strongest intermolecular force. As a result, they cause the boiling points of substances to be higher than normal. Task: Read pages 153-156 and determine how these types of bonding affect the physical properties of substances. We will continue this discussion on Day 6.
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