Ask an Expert (Page 16)

Mini Drone Problem with lift

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

Mini Drone Problem with lift Mini Drone Problem with lift Posted on behalf of family Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Aero_p058/aerodynamics-hydrodynamics/diy-drone-how-much-weight (Or this activity: https://www.sciencebuddies.org/stem-activities/diy-mini-drones ) ------------------------ Hello, my son and I just completed the DIY mini drone and it’s not taking off. I was careful with the instructions and at first it did rise up about 6 inches and… Read more

Vitamin C glass vs plastic jar

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

Vitamin C glass vs plastic jar Vitamin C glass vs plastic jar Posted on behalf of student Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p044/chemistry/which-orange-juice-has-the-most-vitamin-c ------------------------------------------ Would it be possible to substitute the glass jar for a clean plastic one in the "Which Orange Juice Has the Most Vitamin C?" experiment? If so, does it have to be made of a specific kind of plastic? Re: Vitamin C glass vs… Read more

ARDUINO UNO R4 MINIMA

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

ARDUINO UNO R4 MINIMA ARDUINO UNO R4 MINIMA Can I please have the instructions on how to activate bootloader mode on my ARDUINO UNO R4 MINIMA. I think this is why I keep getting the "exit status 74" error in Arduino IDE. Moderator note: Projects: … Read more

Exploring STEM Through Hands-On Projects: How Practical Activities Strengthen Scientific Thinking in the Digital Age

Ask an Expert Topic Forum: Using the Scientific Method and Engineering Design Process

Exploring STEM Through Hands-On Projects: How Practical Activities Strengthen Scientific Thinking in the Digital Age Exploring STEM Through Hands-On Projects: How Practical Activities Strengthen Scientific Thinking in the Digital Age In today’s rapidly evolving technological world, introducing students to STEM through hands-on projects has become one of the most effective approaches in modern education. Platforms like ScienceBuddies.org demonstrate that students learn scientific concepts more… Read more

Question About Project of Developing an E-Nose for the Detection of Breath VOC Makeup changes

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

Question About Project of Developing an E-Nose for the Detection of Breath VOC Makeup changes Question About Project of Developing an E-Nose for the Detection of Breath VOC Makeup changes Hi! We’re building a low-cost e-nose to detect psychological stress from human breath VOCs (Volatile Organic Compounds), using MQ-3, MQ-135, MQ-138, CCS811, and BME688 sensors. The device will feed data to a machine learning model to classify “stressed” vs “relaxed” breath patterns, accounting for… Read more

Measuring the oxygen content of air project

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

Measuring the oxygen content of air project Measuring the oxygen content of air project I have set up my project and am on my first day of taking results. 1. Does this project have to be done outside? I put the test tubes out overnight and two jars of water froze. 2. Are the test tubes supposed to be just slightly above the surface of the water or fully submerged into the jar of water? I put the test tube at the level of water a little bit down from the mouth of the test tube, but how can I… Read more

not sure what to do!!!

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

not sure what to do!!! not sure what to do!!! SOOOO... I know the science fair for my school is almost a month away but I'm not sure what to do it on! I know I want to do it on animals but I'm not sure what!!! :? Re: not sure what to do!!! Hi! You were thinking about something else (a different thread you started) and are still undecided, and now you're thinking about a project about animals? Is there a specific kind of animal you are thinking about or interested in and a question that… Read more

Ultrasonic Haptics project help

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

Ultrasonic Haptics project help Ultrasonic Haptics project help Posted on behalf of student Student is using Science Buddies kit Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p122/electricity-electronics/ultrasonic-haptic-feedback --------------------------------- I am doing the Ultrasonic Haptic Project. I followed all the instructions and bought all the listed parts. But no vibration is coming out of the transducer. What are common problems and their… Read more

incubator help

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

incubator help incubator help hello- my daughter is in 4th grade and is doing her first science fair project - Who's mouth is cleaner a dogs or a humans. She started the experiment and swabbed the dogs mouths and then swabbed the Petri dishes and we've been trying to incubate them but we're having some troubles. Our house is only about 70 degrees so I'm thinking it's not exactly the best environment for the bacteria to grow because most of the dishes have no growth on them and its been 48… Read more

Asking abouut anemometer prototyping from e-waste

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

Asking abouut anemometer prototyping from e-waste Asking abouut anemometer prototyping from e-waste Originally, we planned to use a Reed Switch as the main sensor in our design. The problem is that in my country, it is extremely difficult to find Reed Switches in local electronics stores, and online delivery is slow and unreliable. We also tried looking for old devices to salvage the Reed Switch from, but most of the devices available to us either do not contain one or require complicated… Read more

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