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

Ultrasonic Levitator not working Ultrasonic Levitator not working Help! I’ve tried and tried and can’t get it to work. What’s wrong? Moderator note: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p121/electricity-electronics/ultrasonic-levitator Re: Ultrasonic Levitator not working Hi - can you give more detail than "it's not working"? Are you having trouble getting a small piece of foam to levitate perfectly? Or as far as you can tell, are the ultrasonic… Read more

Refreshable Braille display

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

Refreshable Braille display Refreshable Braille display Hi, I’m have difficulties with my project. My project from your website is the refreshable braille display. I think that the problem is how I placed the jumper cables and other stuff on the breadboard. I did try following the picture exactly on the site. My project is due almost next week. Please reply as soon as you can and I’ll try to send a picture of the breadboard. Moderator note: … Read more

IRB approval

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

IRB approval IRB approval Hello, I got to know about Science Buddies from my sister. I am looking for help regarding IRB approval. My study is survey based (all participants >18 years of age). The survey will be distributed online (the limitations of online survey will be acknowledged in the study). The study is regarding financial education and understanding of concepts by high school seniors. I have the survey deisgned and it includes a consent section. No identifiable information will… Read more

How to Repolarize Magnetic Tape

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

How to Repolarize Magnetic Tape How to Repolarize Magnetic Tape Hello, this is Julian wanting to ask you a question about how to remagnetize magnetic tape for the science project on how to build a Magnetic levitation train. And currently I have the everything set up to get to data done, but my "train" does not want to lift up off of the track. I have even reordered the correct monopolar tape after accidentally getting bipolar magnets. And I have also repeatedly rubbed the train with a… Read more

Ion Thruster

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

Ion Thruster Ion Thruster We are in need of help designing the ion thruster model on the Van de Graff. We have built the second design that is supposed to be more robust and consistent, but we cannot get it to spin like the video. Is there anyone we can communicate with to get more help in the design? Thank you Moderator note: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p119/physics/ion-wind-rotor Re: Ion Thruster Hi there, I'm not really sure about what… Read more

Confused About Candy Snap Procedure

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

Confused About Candy Snap Procedure Confused About Candy Snap Procedure Posting on behalf of parent/student Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/MatlSci_p044/materials-science/candy-snap ---------------- Can someone send some clear directions on how to do the candy snap project? I am a confused parent, trying to do this project with my child. I do not understand the table to document the findings. I do not get the “trials”. If you are putting one… Read more

Question about How Heavy Is Your Air? activity

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

Question about How Heavy Is Your Air? activity Question about How Heavy Is Your Air? activity Type your question below and then press Submit! How do you measure helium? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/how-heavy-is-your-air]How Heavy Is Your Air?[/url] Re: Question about How Heavy Is Your Air? activity Hello, This is a great activity! For this project, it is not… Read more

Empowerment Technologies- Invention ideas

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

Empowerment Technologies- Invention ideas Empowerment Technologies- Invention ideas Hi I am a Grade 11 STEM Student and we have a group project about creating an instruction book about a new invention that we have to create by ourselves. It is either about communication or could be use for daily tasks but we've decided to choose to construct a new invention that will be helpful for daily chores. We don't have any ideas so can you give us some suggestions? ASAP please it is due on Friday.… Read more

Re: Question about a Metal Spoon Heating Faster Than Water

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

Question about a Metal Spoon Heating Faster Than Water Question about a Metal Spoon Heating Faster Than Water Hello! When I put a metal spoon in a cup of hot water,[url=https://slopeio.org][color=#e1ebf2][size=1]slope game[/size][/color][/url] the spoon becomes hot very quickly while the water cools more slowly. What physical property of the metal causes this difference in heating? Please help? Thanks! Re: Question about a Metal Spoon Heating Faster Than Water Hi there, The physical… Read more

Question about a Metal Spoon Heating Faster Than Water

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

Question about a Metal Spoon Heating Faster Than Water Question about a Metal Spoon Heating Faster Than Water Hello! When I put a metal spoon in a cup of hot water, the spoon becomes hot very quickly while the water cools more slowly. What physical property of the metal causes this difference in heating? Please help? Thanks! Re: Question about a Metal Spoon Heating Faster Than Water Hi there, The physical property of the metal that you are referring to is the metal's specific heat… Read more

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