Ask an Expert (Page 85)

Growing Rock Candy

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

Growing Rock Candy Growing Rock Candy Hello! We are finished with our growing rock candy project. Unfortunately the rock candy crystals are stuck to the bottom of the jar so we cannot pull the string out to measure to see which one is bigger. Can you offer any other suggestions on how to confirm which one grew better, aside from just observation. Would weighing the jars be acceptable way? This is for a school science fair project. Thank you so much! Re: Growing Rock Candy Hello, This… Read more

Stuck on self driving car project with Aurdino

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

Stuck on self driving car project with Aurdino Stuck on self driving car project with Aurdino Hi, I am having trouble controlling the right motor voltage of my bluebot using auduino uno. The left motor is working well and I am able to control the speed. But the right motor is constantly moving at the same speed, How do I debug this problem? I have verified that there is no problem with the connections. Could it be a problem with the h-bridge? Any help is appreciated. Thanks in advance. Re:… Read more

test for amy

Ask an Expert Topic Forum: Careers in Science

test for amy test for amy This is a test for Amy. Read more

Science Fair project question: ChatGPT's AI-Generated Text

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

Science Fair project question: ChatGPT's AI-Generated Text Science Fair project question: ChatGPT's AI-Generated Text Hello! My 6th grade son is entering a science fair, and I wanted to understand a couple of things so that I can guide him as he's working. 1/He found a project here on science buddies by using the topic selection wizard: "Can Humans Recognize ChatGPT's AI-Generated Text?" Is this question that the project asks enough of a testable question for a science fair? 2/Is the… Read more

Urgent help! stimulate stomach acid.

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

Urgent help! stimulate stomach acid. Urgent help! stimulate stomach acid. I am doing a science experiment and want to stimulate stomach acid. I was planning on using vinegar since HCl requires a ton of forms and approvals to use as be also very hazardous. Can I dilute and use vinegar instead. Any and all help is appreciated! Re: Urgent help! stimulate stomach acid. Hi JSN, Stomach acid is hydrochloric and the acidity as measured by pH is 1-2. Distilled white vinegar like you can buy in the… Read more

Question about Build a Solar Updraft Tower activity

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

Question about Build a Solar Updraft Tower activity Question about Build a Solar Updraft Tower activity Hi! I am making the solar updraft tower for my physics project according to your videos. However although the temperature reached 51℃ inside, the propeller still did't spin. :shock: I wonder the approximate temperature when the propeller starts spinning. And moreover, I made the propeller with A4 paper, is that because I didn't use the construction paper? And will the distance between the… Read more

Testing for Glucose in Liquids

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

Testing for Glucose in Liquids Testing for Glucose in Liquids [[Posting on behalf of student/family]] My daughter completed the experiment utilizing glucose test kit from the website to measure glucose in beverages. We tested whole milk, Fairlite Milk (50% less sugar) , Orange Juice not from concentrate, Orange Juice not from concentrated (59% less sugar), Diet Coke, Coke, and water. All tested positive for glucose to some degree (except water of course). We expected Coke but why the others?… Read more

Life Science: how genes work

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

Life Science: how genes work Life Science: how genes work So, can anyone explain how genes even work, and how they even became the major part of natural selection and evolution? :cry: :?: :?: :?: It will help if anyone can answer me, and I would appreciate it. :mrgreen: Also, this is my first time being on this website, so if anyone could guide me around, please do! I'm lost An 8th Grade student, E P.s. Thx! Moderator Note: I've combined your two questions into one post so the… Read more

'The Power of Suggestion' Social Experiment

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

'The Power of Suggestion' Social Experiment 'The Power of Suggestion' Social Experiment [url]https://www.sciencebuddies.org/science-fair-projects/project-ideas/Soc_p026/sociology/the-power-of-suggestion[/url] I am trying to conduct this experiment for a 2-week experimental project assigned to me in class. I wanted to know how many images of the individuals it would be best to have? Thank you! Re: 'The Power of Suggestion' Social Experiment Hi there! Thank you for your question! This… Read more

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