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Question about How Much Weight Can Aluminum Foil Boats Float? activity

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

Question about How Much Weight Can Aluminum Foil Boats Float? activity Question about How Much Weight Can Aluminum Foil Boats Float? activity Type your question below and then press Submit! I am trying to make a tin foil boat that holds exactly 45 grams ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/aluminum-foil-boats-float]How Much Weight Can Aluminum Foil Boats Float?[/url] Read more

Mass driver flyback question

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

Mass driver flyback question Mass driver flyback question Am building a mass driver model very similar to one posted on this site. Wondering if there is any flyback caused by suddenly deactivating the coils, and if so, would there be protection required(diode, etc)? In circuit diagram provided, none seems to be present. I do not know that much about the topic and I may be worrying too much. Moderator note: Project:… Read more

Solar Powered Water Desalination

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

Solar Powered Water Desalination Solar Powered Water Desalination I am using a 150 watt lamp, a plastic bowl, a jar, plastic foil, ice cubes, ice cube bag holder(maybe) for my science project. Any tips, advice(or anything in general)? I really need a reply by today to finish my background research(the basis for my science experiment.) assignment. :?: :!: :!: :( :( I need to talk to someone in order to submit the assignment. :shock: :? :( Moderator note: Project:… Read more

How can I make slime without contact solution or borax ?

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

How can I make slime without contact solution or borax ? How can I make slime without contact solution or borax ? Type your question below and then press Submit! Hi 👋! I’m very curious 🤨 in many questions, but this one is my most curious question. I wanted to ask “ How can I make slime without contact solution or borax ???” Please 🙏🏻 reply me ASAP (as soon as possible). Thank you 🤩 very much!!! … Read more

Question about Afterimages: The Colorful Tricks Eyes Play activity

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

Question about Afterimages: The Colorful Tricks Eyes Play activity Question about Afterimages: The Colorful Tricks Eyes Play activity Type your question below and then press Submit! Why might staring time affect the afterimage? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/afterimages-illusions]Afterimages: The Colorful Tricks Eyes Play[/url] Re: Question about Afterimages: The… Read more

Easy Science Fair Project Ideas for Beginners

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

Easy Science Fair Project Ideas for Beginners Easy Science Fair Project Ideas for Beginners Hi everyone! I'm looking for some interesting and easy science fair project ideas that can be done at home using simple materials. I'm especially interested in experiments related to physics, chemistry, or everyday science. What projects would you recommend, and what makes them interesting? I'd love to hear your suggestions and learn from your experiences. Thanks for your help! Re: Easy Science… Read more

Question on copper corrosion testing

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

Question on copper corrosion testing Question on copper corrosion testing Hello! I am working on my science fair project and need help choosing a copper test and the right solutions. My research question is: How does pH affect the amount of copper released from copper samples over time? I plan to compare solutions at pH 3, 4, and 5 and measure dissolved copper over several days. I will use a digital pH meter to measure the pH. 1.Would the Seachem MultiTest Copper kit accurately measure… Read more

ساعه تفحص فقر الدم من خلال إضاءات وهي الأحمر للتحذير والذهاب إلى الطبيب والاصفر أخذ الغذاء والعلاج والأخضر ممتاز

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

ساعه تفحص فقر الدم من خلال إضاءات وهي الأحمر للتحذير والذهاب إلى الطبيب والاصفر أخذ الغذاء والعلاج والأخضر ممتاز ساعه تفحص فقر الدم من خلال إضاءات وهي الأحمر للتحذير والذهاب إلى الطبيب والاصفر أخذ الغذاء والعلاج والأخضر ممتاز يلا أبيك تسوي المشروع Re: ساعه تفحص فقر الدم من خلال إضاءات وهي الأحمر للتحذير والذهاب إلى الطبيب والاصفر أخذ الغذاء والعلاج والأخضر ممتاز We don't have a student project that does what you describe -- or any project that directly detects and monitors blood health.… Read more

What Are Some Simple Science Experiments to Test Reaction Time?

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

What Are Some Simple Science Experiments to Test Reaction Time? What Are Some Simple Science Experiments to Test Reaction Time? Hi everyone, I'm interested in finding simple science experiments that explore reaction time and concentration. For example, one idea is to use a ruler-drop test to measure how quickly someone reacts when catching a falling ruler. I would like to know whether reaction time changes when people are distracted by background noise or have to focus on another task at… Read more

Build obstacle detecting glasses for visually impaired people

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

Build obstacle detecting glasses for visually impaired people Build obstacle detecting glasses for visually impaired people After completing the experiment, the buzzer is not beeping at all. Attaching picture for reference. I have made changes to the ping code and uploaded code to the buzzer as well. Is this code correct? const int trigPin = 7; const int echoPin = 8; void setup() { Serial.begin(9600); pinMode(trigPin,OUTPUT); pinMode(echoPin,INPUT); } void loop() { long duration,… Read more

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