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Sulfuric acid

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Sulfuric acid Sulfuric acid "Let s assume the pH, as with most municipal tap waters, is approximately 8 or 9. Begin adding 95% H2SO4 one drop at a time, mixing thoroughly, and measuring the pH with the pH meter or the range 5.0-6.5 pH papers between each drop until the pH is about 5.8 or 6.0." I'm not sure if i read that the sulfuric acid has to be clear, or not. I bought one bottle at home depot, virgin sulfuric acid. It's not clear, kind of rusty brownish. Can this be ok to use to lower… Read more

Agar Petri dish seeds growing

Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences

Agar Petri dish seeds growing Agar Petri dish seeds growing I have a project that I’m supposed to grow seeds in Petri dish agar so I placed the seeds after two days I noticed something white /yellow starts to show up around the seeds is it normal? Read more

I have a question

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

I have a question I have a question How can we effectively utilize online forums and communities to enhance collaborative learning and support among students undertaking science fair projects? Re: I have a question Hi Aaron - This is an interesting question, but it may not be a question for the Ask an Expert forums. These forums are designed specifically to offer troubleshooting support and assistance for students (and teachers) working on K-12 independent science projects. Students can… Read more

Astronomy

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Astronomy Astronomy Kinda a weird question, but: If we lived inside a black hole, the void of space would be white. If we lived inside a white hole, wouldn’t space be black? Does that mean we are within a white hole? Re: Astronomy A really headache-inducing question :lol: :lol: :lol: Re: Astronomy In theory, if we were within a white hole, space might appear black due to the absence of matter and light escaping. This idea is explored in "The Nature of Space and Time" by Stephen Hawking… Read more

Breast Cancer / AI KNN

Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences

Breast Cancer / AI KNN Breast Cancer / AI KNN [Posting on behalf of parent/student] My son, a 7th grader, is interested in doing the "Can AI diagnose breast cancer" project. https://www.sciencebuddies.org/science-fair-projects/project_ideas/ArtificialIntelligence_p010/artificial-intelligence/KNN-breast-cancer We are following the instructions as per the video listed. In the video by Tracy @2:21 she says that we should normalize or scale the features that are specified in the project… Read more

Bioluminescence experimeny

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

Bioluminescence experimeny Bioluminescence experimeny Hi, My 5th grader is working on the bioluminescence experiment and we are on day 7. We were expecting the test tubes that we moved between light and dark every 12 hours to do the best (as in glow the brightest), consistent with the circadian rhythm. However the ones doing the best are the ones exposed to light round the clock, with only brief periods of darkness when we turn off the light to check luminescence twice a day. What could be… Read more

Effect of Mental imagery training on the improvement of profficiency in drawing straight lines

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Effect of Mental imagery training on the improvement of profficiency in drawing straight lines Effect of Mental imagery training on the improvement of profficiency in drawing straight lines Hello. As far as i know mental imagery training can improve motor functions so much so that it can even affect the power output of a spesific muscle group if trained in a repeated order just like usual physical exercising. Drawing pictures is a motor function since it involves the usage of the muscle… Read more

interest games

Ask an Expert Topic Forum: Grades 9-12: Physical Science

interest games interest games hello, friends and colleagues, and everyone who reads this message, i found one great australian site, [url=https://bizzo.casinologinaustralia.com/]bizzo casino log in[/url] a very large variety of games including slots, poker, roulette, blackjack, various bonuses and promotions for new and regular players, what could be better to just play games, visit the site. Read more

Know Rifaximin Use for Breast Cancer Treatment

Ask an Expert Topic Forum: Careers in Science

Know Rifaximin Use for Breast Cancer Treatment Know Rifaximin Use for Breast Cancer Treatment [b][url=https://www.genericcures.com/product/rifagut-200mg/]Rifaximin use[/url][/b], a popular antibiotic for treating gastrointestinal problems, has recently shown potential in the treatment of breast cancer. Rifaximin has been shown in studies to limit the growth of breast cancer cells by targeting particular pathways involved in cancer progression. This medication works by blocking the… Read more

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