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LC Circuit

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

LC Circuit LC Circuit Hi! I am having trouble understanding how an LC circuit works. Can someone please explain this to me? All I know is that it uses electrical energy to output frequency, but the frequency output decreases over time. Is there a way to prevent the amount of output frequency from being decreased? Thank you! Brindha Re: LC Circuit Hi - this forum is for K-12 students who need help with science fair projects. Are you working on a science project that involves LC circuits,… Read more

Question on Measure the Frequency Response of a Paper Speaker Project

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

Question on Measure the Frequency Response of a Paper Speaker Project Question on Measure the Frequency Response of a Paper Speaker Project Hi! This project is really fascinating and my friends and I chose it for our final physics project. I had a few questions regarding the materials. 1. Would it work fine if we use 1 inch magnet (instead of half inch)? 2. If yes, would we have to make any changes to the size of our speaker? 3. Here are two links found for magnets available locally, which… Read more

A student believes she is observing a chemical reaction when pure sugar is burned and caramelizes. How can the student

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

A student believes she is observing a chemical reaction when pure sugar is burned and caramelizes. How can the student A student believes she is observing a chemical reaction when pure sugar is burned and caramelizes. How can the student Do I need to compare their state of matter, volume, mass, or volubility in water? Re: A student believes she is observing a chemical reaction when pure sugar is burned and caramelizes. How can the stud I'm not exactly sure what the question is, but… Read more

Question about Make a Whirlybird from Paper activity

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

Question about Make a Whirlybird from Paper activity Question about Make a Whirlybird from Paper activity Type your question below and then press Submit! How is it that the whirly bird fights against gravity? Why cant gravity push the whirly bird down all the way? What makes it so the whirly bird spins so that it can fight gravity? If I attatch a big and strong enough whirly bird to me, can I also fight against gravity?And lastly, can it exist to where something is against gravity by so much… Read more

What heat lamp should I use for the water desalination kit?

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

What heat lamp should I use for the water desalination kit? What heat lamp should I use for the water desalination kit? There is a water desalination kit that mentions that you can use a heat lamp to replace sunlight to evaporate water. Which lamp should I use? Wattage? [Administrator note: Project URL: https://www.sciencebuddies.org/science-fair-projects/project-ideas/EnvEng_p022/environmental-engineering/solar-powered-water-desalination#help ] Re: What heat lamp should I use for the water… Read more

Question about Make Ice Cream in a Bag activity

Ask an Expert Topic Forum: STEM Activities

Question about Make Ice Cream in a Bag activity Question about Make Ice Cream in a Bag activity Type your question below and then press Submit! cat ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/ice-cream-bag]Make Ice Cream in a Bag[/url] Read more

Question about Gravity-Powered Sorting Machine activity

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

Question about Gravity-Powered Sorting Machine activity Question about Gravity-Powered Sorting Machine activity What is the independent variable for the sorting machine? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/gravitypowered-sorting-machine]Gravity-Powered Sorting Machine[/url] Re: Question about Gravity-Powered Sorting Machine activity Hello, This sounds like a fun… Read more

Help With DNA Repair Deficient and Regular Yeast React to UV Radiation

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

Help With DNA Repair Deficient and Regular Yeast React to UV Radiation Help With DNA Repair Deficient and Regular Yeast React to UV Radiation Hi! I started the yeast and UV radiation project and am having trouble with the counting the cultures part of it. Is there any way to tell whether the cells are dead or not? I asked my science teacher and he recommended using a microscope or something that could measure the carbon dioxide in the air, and I don't have the former and neither have nor… Read more

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