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Archimedes Screw

Ask an Expert Topic Forum: STEM Activities

Archimedes Screw Archimedes Screw In the Science Fair Project for the Archimedes Screw [url]https://www.sciencebuddies.org/science-fair-projects/project-ideas/ApMech_p039/mechanical-engineering/build-archimedes-screw-pump[/url] the procedure lists the period as the length of the pipe divided by the number of times the tube is wrapped around the pipe. In the FAQ for "how to find the period", it lists the period as the reciprocal (# of wraps/length). Which is the correct way to find the… Read more

Now you see it, now you don't science experiment

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

Now you see it, now you don't science experiment Now you see it, now you don't science experiment My son has completed the "Now You See It, Now You Don't - how acidic groundwater makes rocks disappear" experiment. The changes in mass over time indicate that the experiment went "as expected", as the mass decreased for the rocks in the vinegar solutions. However, his PH values are confusing and we are concerned they are not correct. We helped him make the solutions so feel that the start of… Read more

About moles of alanine, iron and nitrobenzene

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

About moles of alanine, iron and nitrobenzene About moles of alanine, iron and nitrobenzene I need some answer guys. please help me. 1. How many Moles of alanine would be formed if 3.78moles of iron and 5.69 moles nitrobenzene were mixed in excess water. 2. How many grams of alanine would be formed if 3.78g of iron and 5.69 g of nitrobenzene were mixed in excess water. 3. How many grams of alanine would be formed if 32.78g of iron were mixed with 23.89g nitrobenzene in excess water. if… Read more

Evolution

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

Evolution Evolution Complete the following analogy: beak size:Galápagos finches as white hair:______ Read more

Recycling of Lithium Ion Batteries by Flash Joule Heating

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

Recycling of Lithium Ion Batteries by Flash Joule Heating Recycling of Lithium Ion Batteries by Flash Joule Heating Hello, I am currently researching ways to improve the recycling and raw material extraction methods for lithium ion batteries for a potential research proposal competition. This is because current hydrometallurgical and pyrometallurgical processes are quite energy intensive, and not exactly environmentally friendly. Another reason is because, there has been many human rights… Read more

PLS HELP - URGENT - How salty?

Ask an Expert Topic Forum: Grades 6-8: Physical Science

PLS HELP - URGENT - How salty? PLS HELP - URGENT - How salty? plz help me! I need help on the science project "How Salty Does the Sea Have to Be for an Egg to Float?" and im stuck on the absolute mass concentration and relative salt concentrations. I have Looked everywhere for an answer and yet i cant seem to understand. Plz someone help fast i dont have too much time to complete this project! Re: PLS HELP - URGENT - How salty? Hello, This sounds like a fun project! Step 4, part g in the… Read more

Importance of English Language

Ask an Expert Topic Forum: Raspberry Pi Projects Kit

Importance of English Language Importance of English Language The English Language is turning out to be increasingly more typical on the planet. Therefore, progressively individuals are devoting time to concentrating on English as their subsequent language. Indeed, numerous nations remember it for their school prospectus to show youngsters this language from early on. Notwithstanding, the genuine worth of this language is that it helps eliminate numerous obstructions in our life. Regardless… Read more

Hypothesis for How are Antibodies Used for Blood Typing?

Ask an Expert Topic Forum: Grades 9-12: Life, Earth, and Social Sciences

Hypothesis for How are Antibodies Used for Blood Typing? Hypothesis for How are Antibodies Used for Blood Typing? Any suggestions for a hypothesis for how are antibodies used for blood typing without using temperature as a factor? [Administrator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/BioChem_p008/medical-biotechnology/how-are-antibodies-used-for-blood-typing ] Read more

Microbial Fuel Cell Project

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

Microbial Fuel Cell Project Microbial Fuel Cell Project Hello! I am doing an experiment with Microbial Fuel Cells. This is the project I am doing: https://www.sciencebuddies.org/science-fair-projects/project-ideas/EnvSci_p061/environmental-science/microbial-fuel-cell-urine I already assembled both microbial fuel cells once, and left it there for around 10 days. I didn't see anything happening. The LED wasn't blinking. The fuel cell was in all of the right conditions. It was left undisturbed,… Read more

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