Ask an Expert (Page 15)

Heat lamp

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

Heat lamp Heat lamp My project is: how does color affect heating by absorption of light? I was looking for a heat lamp bulb, and the project requires a 250 plus watts light bulb, but the only ones i can find are infrared light. Is that ok or does it need to be white light? Moderator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p030/physics/how-does-color-affect-heating-by-absorption-of-light Related:… Read more

Question about Build a Paper Roller Coaster activity

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

Question about Build a Paper Roller Coaster activity Question about Build a Paper Roller Coaster activity Type your question below and then press Submit! Hello, I see your template and I also purchased the Andrew Gatt template. Which template is correct because I am all confused ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/paper-roller-coaster]Build a Paper Roller… Read more

Fish?

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

Fish? Fish? Okay so, how come we humans can’t breathe water if we evolved from fish? Re: Fish? Hello AT science buddies we are unable to give answer to homework or schoolwork. Is this a homework question or out of curiosity? Read more

Tempering Chocolate

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

Tempering Chocolate Tempering Chocolate My student would like to turn this into a Science Fair project but we are having a hard time determining what we would be testing. Could you help with this? Moderator note: https://www.sciencebuddies.org/science-fair-projects/project-ideas/FoodSci_p038/cooking-food-science/tempering-chocolate Re: Tempering Chocolate Hi there, The experimental procedure for this project is totally up to you—you get to choose what you would like to explore… Read more

AI for Litter Detection

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

AI for Litter Detection AI for Litter Detection Hello, I am doing a litter detection AI project that requires using Google Colab. I have done all the steps accordingly and I am currently on step no.4 and it states to simply run the code block it has provided me. But every time I try to run it it gives me an error message. I would appreciate if you could help guide me through this issue as soon as possible. Thank You, Saira Moderator note: … Read more

Question about Distance

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

Question about Distance Question about Distance up close, the plane is huge, about 45 people max. far away, the plane is about the size of a toy plane. Why is that? Re: Question about Distance Hi! This is all due to a concept called a “visual angle,” which is in your retina (in your eye). When closer, this plane, looks much larger because it appears as a larger visual angle in your retina, so it takes up more space in your field of view. When further, the visual angle gets smaller and the… Read more

upgrading trash skimming robot

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

upgrading trash skimming robot upgrading trash skimming robot hello! so i made it to regionals with my prototype of an rov with a net attached to collect trash in waters, but the teachers that judged my project worried about wild life getting caught in the net. my teacher wants me to upgrade my prototype with this feedback and i could use some suggestions. one judge told me to use a rotator to detect what is solid and what is wild life but im a bit confused? i went looking for rotators and… Read more

Ultrasonic levitator

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

Ultrasonic levitator Ultrasonic levitator Posting on behalf of student Project: Ultrasonic levitator https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p121/electricity-electronics/ultrasonic-levitator ---------------- [attachment=0]hDtvwWgzz30vKCLCZaO9FZtgOzGZRUte4g.png[/attachment] Re: Ultrasonic levitator Hello, If this is your first Arduino project, we recommend going through at least the very first tutorial on this page:… Read more

MY light seeking robot

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

MY light seeking robot MY light seeking robot There is a problem with my speedy light seeking robot. The wheels are going at different speeds somehow. We did finish building and put all of things in the right spot on the bread board. Its just the motors that are moving at different speeds. We did have to switch one motor wires because the wheels went opposite ways. Heres a picture. [attachment=0]Screenshot 2025-12-03 3.35.29 PM.png[/attachment] Moderator note: Related Project: … Read more

Question about Making a Sugar Thermometer activity

Ask an Expert Topic Forum: STEM Activities

Question about Making a Sugar Thermometer activity Question about Making a Sugar Thermometer activity How does sugar affect kids energy? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/making-a-sugar-thermometer]Making a Sugar Thermometer[/url] Re: Question about Making a Sugar Thermometer activity Hi - It doesn't sound like this is related to this "Making a Sugar Thermometer" science… Read more

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