Ask an Expert (Page 60)

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

Machine Learning Variables and Trials Machine Learning Variables and Trials Hi, I doing a science fair project to see how well teachable machine can be trained to classify happy, sad, surprised and angry faces. I'm confused about the variables and trials for this type of project. I understand confusion matrixes, but what should my three trials test? I think the independent variable would be the number of images the tool is trained with. My dependent variable would be the AI's performance. My… Read more

math

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

math math I'm really srtees about the fiar [size=50][size=200][/size][/size] Re: math Do you have a question about the project you've selected? Or are you still looking for a project? Amy Science Buddies Read more

Question on "Are More Expensive Golf Balls Worth It?"

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

Question on "Are More Expensive Golf Balls Worth It?" Question on "Are More Expensive Golf Balls Worth It?" Hello, I am planning to do the project "Are More Expensive Golf Balls Worth It?" from this site. For this project, there needs to be a "means for measuring the distance of your drives." Aside from the materials suggested, can I use a golf simulator or a Swing Caddie that will give a "comprehensive report of [my] swing [and] ball speed, carry distance, launch angle,… Read more

Solar-Powered Water Desalination and Filtration System

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

Solar-Powered Water Desalination and Filtration System Solar-Powered Water Desalination and Filtration System Hi! So I’m a 7th grade student and I decided to do this project but my teacher wants us to use the “If,then,because” method for our hypothesis. Does anyone have any suggestions or tips? :?: [Administrator note: Project url: https://www.sciencebuddies.org/science-fair-projects/project-ideas/EnvEng_p022/environmental-engineering/solar-powered-water-desalination Science Buddies… Read more

Question about Build a Rubber Band-Powered Car activity

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

Question about Build a Rubber Band-Powered Car activity Question about Build a Rubber Band-Powered Car activity what is the safety information for this activity peyton ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/rubber-band-car]Build a Rubber Band-Powered Car[/url] Re: Question about Build a Rubber Band-Powered Car activity Hi peytonbalduff, This activity should not require any… Read more

Microbiology in a PJAS project

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

Microbiology in a PJAS project Microbiology in a PJAS project [size=150][/size][size=85][/size]I am doing a PJAS (Pennsylvania Junior Academy of Science) project and I really want to do a microbiology project but my teacher said they most likely wouldn't allow it. Is there any way I could still do this? :cry: Re: Microbiology in a PJAS project You will need to look carefully at the rules for the fair to see what limitations there are. Your teacher may have run into an issue in the past? We… Read more

Bioluminescent Street Lights

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

Bioluminescent Street Lights Bioluminescent Street Lights I want to do a project experimenting on bioluminescent street lights, but I'm not sure where to start, initially I wanted to test like if they have a negative effect on the environment and how they are sustainable and I'm not sure exactly how I would test it because there are a few cities that have tried having bioluminescent or natural lighting but there isn't enough info for me to put together a concrete science proposal. I can do… Read more

Need Help to Rewrite A CRISPR Project Procedure?

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

Need Help to Rewrite A CRISPR Project Procedure? Need Help to Rewrite A CRISPR Project Procedure? Hello! I am in the eighth grade and I am trying to do a project relative to CRISPR and was trying to base it off this project (link below) but I wanted to try and make E. coli unresistant to an antibiotic instead of making it resistant to the antibiotic, but because I am new to CRISPR I am not confident enough to be able and create my own procedure. Link for project:… Read more

Investigate the Kinetics of the Color Changing Iodine Clock Reaction

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

Investigate the Kinetics of the Color Changing Iodine Clock Reaction Investigate the Kinetics of the Color Changing Iodine Clock Reaction Can you explain what Iodines are and their role in the experiment? [Administrator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p091/chemistry/iodine-clock-reaction-kinetics ] Re: Investigate the Kinetics of the Color Changing Iodine Clock Reaction Hi LaylaHall, Iodine is the main ingredient in this chemical… Read more

Neodymium Magnets

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

Neodymium Magnets Neodymium Magnets Hello, I am doing a project where I move a Neodymium magnet closer and farther to a circuit and see how it affects the voltage. Is there any suggestions you have to set up the circuit? Thanks! Re: Neodymium Magnets Hi - we have several projects about generating electricity with magnets that you may find… Read more

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