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career

Ask an Expert Topic Forum: Careers in Science

career career I want to start my career as an [url=https://lawnscanner.com/best-electric-hedge-trimmer/:3g9ev4p3]agriculturist and wants suggestion about it. Read more

Suggested Amperage for electromagnet

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

Suggested Amperage for electromagnet Suggested Amperage for electromagnet Hello, I am a Sophomore student working on my science fair project. I am applying varying magnetic field strengths to plasmas to see how the voltage change over the ionized gas. My theory is that if ionized gas is condensed into a tighter stream, the energy will flow easier through the ions. I am using a type of cathode-ray tube to form the plasma. I am still unsure what the range of amperage should be for the small… Read more

Which Team Batting Statistic Predicts Run Production Best?

Ask an Expert Topic Forum: Grades 9-12: Math and Computer Science

Which Team Batting Statistic Predicts Run Production Best? Which Team Batting Statistic Predicts Run Production Best? I have completed everything for this project except the Linear Regression Analysis. For step 2 of that part of the project I am not exactly sure what is supposed to be my output and input values because I have tried inputting some with the directions it tell me and the excel sheet will not run it. So I am wondering if someone could help to show or tell me exactly what the… Read more

measuring the freshness of food

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

measuring the freshness of food measuring the freshness of food Hello! Me and my friend need a way to measure the freshness of food for our science project. Its about finding which preservative is best for keeping food fresh. The only way I figured we could do this is by looking at food with a microscope. Is there any other way to do this because we don't have access to or know how to use microscopes. Re: measuring the freshness of food Hello! This sounds like an interesting project! Do you… Read more

Lead testing for soil science project

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

Lead testing for soil science project Lead testing for soil science project Hello, Trying to help my 4th grader with the science project that tests soil to determine if there are dangerous levels of lead in it. The DIY kit listed in the project on the science buddies website doesn’t have good reviews, and the universities listed to send the samples to aren’t doing these tests anymore. Looking for suggestions on both a reliable DIY soil test kit and an actual lab to send the samples to… Read more

Dilution of An Enzyme Solution

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

Dilution of An Enzyme Solution Dilution of An Enzyme Solution Hello, My science fair project aims to find out how diluting an enzyme solution will affect its reaction. If I were to make a 10% dilution, would it be 1 part of the enzyme solution to 10 parts distilled water or just 10% distilled water added to the enzyme solution that was created in the experiment? Another question I have is, would the undiluted solution be just the enzyme solution without distilled water? If I could receive… Read more

Trying to produce Venom from Bacteria by plasmid insert

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

Trying to produce Venom from Bacteria by plasmid insert Trying to produce Venom from Bacteria by plasmid insert Hello, My idea is trying to produce venom by inserting the gene for the venom into a K12 strain of E. Coli bacteria. I would be following a method similar to that of the PGLO lab (the only difference here would be the gene that was added would be of the venom instead of a glowing protein). I am wondering, however, why no one has done this before. When researching this I could not… Read more

Make your own shampoo experiment

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

Make your own shampoo experiment Make your own shampoo experiment Why do we need acetone, can’t we just use plain oil? Re: Make your own shampoo experiment Hi there, Welcome to Science Buddies! I assume you're referring to this experiment: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p109/chemistry/make-your-own-shampoo-and-test-how-it-performs#procedure My understanding is that the acetone helps make the experiment more "realistic," i.e. the oily wool will… Read more

Lemon\potato batteries

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

Lemon\potato batteries Lemon\potato batteries Hello[url=https://www.bigtitsporn.xxx/],[/url] How long do potato batteries last? How long do lemon batteries last? Re: Lemon\potato batteries Hi fotiweli, There is no straightforward answer to this question, as the time will depend on the moisture content of the potato/lemon. The moisture acts as an electrolyte, which helps the electrons flow from the anode to the cathode (the metal electrodes stuck into the potato). The potato will eventually… Read more

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