![]() Part III is the fun lab practical, 90-min, 2 problems. Just AP Chem knowledge will not hold well here (sophomore year, I sat there for over an hour doing nothing after I finished my guessing). Part II is the free-response, 105-min, 8-question section that tests more advanced chemistry knowledge. ![]() Faster-paced than local with harder questions. Part I is the multiple choice, 90-min, 60-question test. It was really weird to go to a “nationals” with 6 people, believe me :)Īt the national level, there are 3 parts of the exam: This isn't really a conference where everyone goes to DC or something, it’s just a nationally-standardized exam held in your home state or region. ![]() From the local exam, usually two kids from each school advance to nationals. Point is, if you love chemistry, this is the type of test that challenges what you do know while exposing you to content that is typically given to college undergrads.Ī local coordinator (usually a high school chemistry teacher) holds the local exam, a 60-question, 110-minute multiple choice test. Of course, I don't agree with people who pick their area of study based on prestige, but it is what it is, I guess. The US National Chemistry Olympiad is the most well-known chemistry contest for American high schoolers and very often gets lumped in with USABO (biology) as the "medium-level" science olympiad, right below the one for physics. Those are the people who have worked 2, 3, maybe 5 times harder than me overall – I don’t have experience at the very top) (please note that if you want to make the official team or succeed internationally, I am not the person to ask. After camp, I decided to drop it entirely this year – I auto-qualified for nationals because I was a camp attendee, but I made less than 40/60 on the national exam and didn’t even get to take the Part II free response woops! I won’t say that it was the best idea, but I did pull off top 20 by some dumb luck and went to the camp (extreme impostor syndrome nice). In junior year, I was accepted to a state STEM boarding school (the other school that takes the test lol), where I decided to focus nearly all my energy into preparation for USNCO. Because the state that I come from is highly non-competitive, I qualified for the national exam with 75% knowledge of AP chemistry (only two schools actually take the local exam!) and unsurprisingly got destroyed that year. I’m a current high school senior graduating who-knows-what-month that took AP Chemistry sophomore year, had a pretty chill teacher who introduced me to Chemistry Olympiad then. If you have any questions for me, ask away in the comments! Sorry this isn’t another waitlist post or AP complaint :p but I hope this will help at least one person out there. This will be pretty college-focused per this sub. It’s important to pick the right material for a job based on its chemical and physical properties.Hey! Since I don’t have much else to do during this quarantine, I figure I might as well write up a sell (and a little bit of a warning) for one of the best chemistry opportunities for high schoolers out there. Whereas normal steel will rust when exposed to air and water.Īnd wood will react with oxygen if heated. Like the stainless steel metal in cutlery, which doesn’t react with food and remains shiny after washing. Sometimes, we choose the right material based on its chemical properties - which describe how reactive it is. Whereas other materials, like the glass bulb of this lamp, are brittle. Metal is a good electrical conductor.īoth the metal and the plastic can be easily shaped into long flexible wires - we say they’re ductile. The electric current can flow through the inner metal part of the wire to light the lamp. And plastic has a lower melting point too.īut plastic is a good electrical insulator, meaning we can touch the outside of electrical plugs and wires without getting an electric shock. Whereas the plastic of the handle doesn’t conduct heat so well, it’s an insulator. Metal is a good conductor of heat, and has a high melting point, making it good to cook with. Physical properties are the basic features of a material that affects how it behaves in different situations. It’s because of the physical properties of the materials. I’m going to find out why we make frying pans out of metal, and why the case around electrical plugs out of plastic, but not the other way round.
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