Ask an Expert (Page 191)

Disposal of agar plate

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

Disposal of agar plate Disposal of agar plate I had tried out an experiment a few weeks ago involving growing bacteria from different water sources on agar plates at home. Now, I am done with the experiment and a few of my plates have bacterial colonies on them and one has fungi(???) on it. I have been keeping them within sealed ziploc bags and I've seen on many websites not to ever take them out of the bag once you put them in and not to take the cover off of the dish, and I've also seen… Read more

What do you do in your free time?

Ask an Expert Topic Forum: Grades K-5: Physical Science

What do you do in your free time? What do you do in your free time? Run again and enjoy. [url=https://cookieclicker3.com:1vxaijaj][size=50:1vxaijaj]cookie clicker[/size:1vxaijaj] Read more

Quiz best

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

Quiz best Quiz best Welcome! How much time do you spend relaxing? This is probably where you spend the most time [url=https://theimpossible-quizbest.com:p4uv2ap8][size=50:p4uv2ap8]the impossible quiz[/size:p4uv2ap8] Read more

Converting a ketone to a double bond, alkylation

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

Converting a ketone to a double bond, alkylation Converting a ketone to a double bond, alkylation Hey, I'm trying to figure out the compound/type of reaction needed to get from the molecule at the top to the one at the bottom (Step I). The main issue is that I can't think of an alkylation which converts a ketone to a C/C double bond without leaving a methyl group. If it were an aldehyde, then it would be a rather simple Wittig reaction, but a Wittig reaction forms a double bond at the C… Read more

Need help with a question about this experiment on germination of seedlings

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

Need help with a question about this experiment on germination of seedlings Need help with a question about this experiment on germination of seedlings Need help with a question about this experiment on germination of seedlings. I did an experiment where we used seedlings of Lepidium sativum to see under which conditions it would germinate. We'd use cotton wool and dampen it, and placing the seedlings at the bottom. Depending on which bottle it was, some were mixed with dampened cotton wool,… Read more

Slime Mould escaping !

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

Slime Mould escaping ! Slime Mould escaping ! Hi! I am currently completely a year 11 experiment for biology, investigating the effect of essential oils as natural enzyme inhibitors on a sample of Physarum polycephalum (slime mould). I have finished the actual experiment now, but have still been growing the slime mould and the plan was to freeze it for long term storage and use it again in year 12. However, yesterday the slime was starting to escape the petri dish and so I just left it and… Read more

steps in high school/university to get into biological engineering

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

steps in high school/university to get into biological engineering steps in high school/university to get into biological engineering Hello science buddies, I am in ninth grade currently and am hoping to go into biological engineering when I am older. I am wondering what classes and steps you took in high school and university to help you get into your desired scientific field. thankyou. Re: steps in high school/university to get into biological engineering You may find it helpful to look… Read more

Finding Project/Idea/Field for Science Fair

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

Finding Project/Idea/Field for Science Fair Finding Project/Idea/Field for Science Fair Hello there! My name is Brindha Srivatsav and I am a rising sophomore (as of this fall). I did Science Research in my freshman year and my project was in the Environmental Engineering field. For my project last year, I built three different microbial fuel cells and tested which level of nitrogen affected the overall output (electricity output) the most. However, this year, I want to plan ahead for my… Read more

Chemistry

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

Chemistry Chemistry How do the outermost occupied energy level of a calcium ion Ca2+ compare with the outermost occupied energy level of a sulfide ion S2−? Describe the formation of each ion from its neutral atom. Re: Chemistry Can you please let us know a bit about the project you are doing? Experts can't help with homework questions, but if you are working on a hands-on science project, please let us know more about your project and where you are in the process. Amy Science Buddies Read more

I need an expert's opinion regarding my research paper.

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

I need an expert's opinion regarding my research paper. I need an expert's opinion regarding my research paper. My paper is entitled "Analyzing the Potential of Crescentia cujete in SARS-CoV-2 Treatment". My research shows that certain phytochemicals in this fruit like quercetin and more can help combat CoVid-19. Is it safe to assume that this fruit as a whole can really fight CoVid-19? I also need more of your expert's opinions. Thank you very muchh :D Re: I need an expert's opinion… Read more

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