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Science fair

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

Science fair Science fair My sons doing a science fair project showing soda and diet soda which float and sinks .. what would you write for the purpose? Re: Science fair Hello! The purpose could be to investigate and compare the floatability properties of regular soda and diet soda. I hope this helps! Re: Science fair The purpose of the science fair project is to investigate and compare the density of soda and diet soda to determine why one floats while the other one sinks when placed… Read more

Iodine 1% in a project that calls for 2% Lugol's Iodine Solution

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

Iodine 1% in a project that calls for 2% Lugol's Iodine Solution Iodine 1% in a project that calls for 2% Lugol's Iodine Solution (Posted on behalf of an international student who can't access the iodine solution called for in the project.) -- Can they use what they have locally, which is 1% iodine, for the experiment. Will this work for this project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p044/chemistry/which-orange-juice-has-the-most-vitamin-c [b]The… Read more

Help on CC motor and arduino H bridge programing elevator circuit

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

Help on CC motor and arduino H bridge programing elevator circuit Help on CC motor and arduino H bridge programing elevator circuit i have an elevator circuit that tells me what floor im on after pressing a button but the voltage isnt enough to activate the motor for the going up and down part of the elevator and i need help to get this to work in zync with the buttons pulses in order to work properly Re: Help on CC motor and arduino H bridge programing elevator circuit Hi, You may want to… Read more

Question about Make a Lemon Volcano activity

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

Question about Make a Lemon Volcano activity Question about Make a Lemon Volcano activity Type your question below and then press Submit! -are lemon volcanoes edible after you use them? Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/make-lemon-volcano]Make a Lemon Volcano[/url] Re: Question about Make a Lemon Volcano activity Hello, I would not recommend eating the lemon volcanoes. However, they are edible. I hope… Read more

Raspberry pi electric piano with light

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

Raspberry pi electric piano with light Raspberry pi electric piano with light I am doing this raspberry pi project electric piano with lights. I bought raspberry pi 4 model from Amazon as it is not available on science buddies. Can somebody help me in setting up the circuit with gpio pins so I can work on scratch and get the leds light up. TIA [Administrator note: https://www.sciencebuddies.org/science-fair-projects/project-ideas/CompSci_p053/computer-science/electronic-piano-raspberry-pi … Read more

How to identify plastic in water

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

How to identify plastic in water How to identify plastic in water What are some methods mentioned in the provided text that can be used to detect plastic in water using an Arduino? How does the suggested camera method work, and what precautions should be taken to ensure safety? Read more

Is Earth science taught at high schools in your state?

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

Is Earth science taught at high schools in your state? Is Earth science taught at high schools in your state? I am a high school Earth science teacher in NY currently but considering a move out of state. It’s relatively easy to find earth science job openings in NY due to the Regents exam. Out of curiosity, is earth science commonly taught in your state (and where do you live)? Thank you for helping me informally collect some data. Re: Is Earth science taught at high schools in your… Read more

Question about Make Sprinkles Vibrate with Sound activity

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

Question about Make Sprinkles Vibrate with Sound activity Question about Make Sprinkles Vibrate with Sound activity Type your question below and then press Submit! Hey, I'm doing a project, I was wondering if it would work with a speaker instead of humming. I want to make it more sanitarry. ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/sprinkles-vibrate-sound]Make Sprinkles Vibrate… Read more

Help Needed: Carbon Filter Project

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

Help Needed: Carbon Filter Project Help Needed: Carbon Filter Project Hi - My daughter is doing the carbon filtration project using granular activated carbon and powdered activated carbon. She has followed the experimental procedure but the results were not as she expected. Through her research she assumed that the granular activated carbon would remove some contaminants but not as much as the powdered activated carbon would. The results were that with both food color concentrations after… Read more

Help Needed: Carbon Filter Project

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

Help Needed: Carbon Filter Project Help Needed: Carbon Filter Project Hi - My daughter is doing the carbon filtration project using granular activated carbon and powdered activated carbon. She has followed the experimental procedure but the results were not as she expected. Through her research she assumed that the granular activated carbon would remove some contaminants but not as much as the powdered activated carbon would. The results were that with both food color concentrations after… Read more

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