Ask an Expert (Page 12)

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

AI Sign Language Detection Model AI Sign Language Detection Model Hello, In the Sign Language Detection Model with Machine Learning project, I am having trouble with cell 2A. When I run the cell, an error appears that says "module 'mediapipe' has no attribute 'solutions.'" I do not know what this means. I have tried running the program multiple times and restarting the session. Is there anything I can do to fix this? Thank you. Moderator note: … Read more

Dissolved oxygen v Temperature

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

Dissolved oxygen v Temperature Dissolved oxygen v Temperature Thanks for your help! I followed the protocol in the Science Buddies website. I used LaMotte Dissolved Oxygen kit. I measured dissolved oxygen at temperature for 30, 50, 70, 90, 110°F today. I aerated with an aquarium pump and airstone. I used water from the stream in my backyard. I am confused by some of my results. Why is the dissolved oxygen getting lower when I aerate the warm water? With my experiment, I expected at all… Read more

Does ice melt in the freezer

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

Does ice melt in the freezer Does ice melt in the freezer Ive been trying to do an expierment but the ice is not melting in the freezer. Re: Does ice melt in the freezer someone please help its not melitng Re: Does ice melt in the freezer Hi - Is this the project you are doing? https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p049/chemistry/what-makes-ice-melt-fastest If so, note that the ice will be in the [i]refrigerator [/i] during the experiment, not the… Read more

Artificial Pancreas

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

Artificial Pancreas Artificial Pancreas Hiii! I want to make a decent science project on how fast an artificial pancreas responds to different glucose levels, like high, low, and regular. Please someone help me on what I could do to manipulate something!! 🥺 Moderator note: https://www.sciencebuddies.org/science-fair-projects/project-ideas/HumBio_p040/human-biology-health/developing-an-artificial-pancreas Read more

Detect Ripe Fruit circuit

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

Detect Ripe Fruit circuit Detect Ripe Fruit circuit Posted on behalf of student/family: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p088/electricity-electronics/build-a-circuit-to-detect-ripe-produce ------------ We are doing the [i]detect if it is ripe fruit sensor[/i] project. We are having a hard time getting the detection to work. The light will turn on for all the fruit, and now it will not turn on for any of the fruit. We have adjusted the sensor,… Read more

Ferromagnetic materials and troubleshooting

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

Ferromagnetic materials and troubleshooting Ferromagnetic materials and troubleshooting Hi I am wanting to do a science fair project on how ferromagnetic metals' spontaneous magnetization are affected by temperature. I also want to compare the results i get to a graph of blochs law which is M(t) = Mo(1-BT^(3/2). I have learned that blochs law is accurate from temperatures well below the metals curie temperature, but is not that accurate close to the curie temperature. I was hoping to use… Read more

Question about Stay warm with thermal insulation activity

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

Question about Stay warm with thermal insulation activity Question about Stay warm with thermal insulation activity Type your question below and then press Submit! where do you use wool in this experiment ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/stay-warm-with-thermal-insulation]Stay warm with thermal insulation[/url] Re: Question about Stay warm with thermal insulation… Read more

Question about Paper Squawker activity

Ask an Expert Topic Forum: STEM Activities

Question about Paper Squawker activity Question about Paper Squawker activity Type your question below and then press Submit! Can we get a video or a picture of this activity! ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/paper-squawker]Paper Squawker[/url] Re: Question about Paper Squawker activity There is no video for this STEM activity. If you have questions about the steps in… Read more

Help with beeper on walking stick

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

Help with beeper on walking stick Help with beeper on walking stick Hello. I am using your walking stick for a science project. We got it to work, and use it sometimes with a beeper and sometimes with a vibrating motor. The beeper or motor does always just beep a little every second until the sensor is close to something. Did we do something wrong or is there a way to turn that off until we are close to an object? We are using your code. Thanks. Alec and Dad Moderator note: … Read more

Where to get animal blood for science project at a reasonable price

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

Where to get animal blood for science project at a reasonable price Where to get animal blood for science project at a reasonable price Hello I am in the middle of science fair and have run into a few problems. Firstly, my project is studying how iron levels can influence the bioimaging expression since there wasn’t a clear awnser in articles I saw. However, in order for this to work I would need blood, and all the pigs and sheep’s blood viles are super expensive and no farmers markets have… Read more

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