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

Spring Constant in Paper Speaker Kit Spring Constant in Paper Speaker Kit I am a student in AP Physics C: Mechanics, and I used the Paper Speaker Kit (SKU: SB-PAPSPK) for my research project. I am currently in the process of writing the research paper, and I need to know the spring constant of the spring in the kit. Is there an official spring constant value associated with this spring? Re: Spring Constant in Paper Speaker Kit Hi - there is no official spring constant for the "spring" in… Read more

water filtration project

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

water filtration project water filtration project Hello I am working with on water filtration experiment using charcoal powder. We got confuse about the steps. Do you have a video about this project? https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p108/chemistry/which-filtration-material-leads-to-the-best-drinking-water Re: water filtration project Hi - unfortunately we do not have a video about this project, but if you can be more specific about which step(s)… Read more

Question about Chromatography: Be a Color Detective activity

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

Question about Chromatography: Be a Color Detective activity Question about Chromatography: Be a Color Detective activity where can i find bibliographic references of this experiment? Re: Question about Chromatography: Be a Color Detective activity This activity includes additional reading recommendations at the bottom. See "Additional Resources" https://www.sciencebuddies.org/stem-activities/chromatography-be-a-color-detective For a school science project, there is a project designed to… Read more

How do you prevent a boat from rocking back and forth?

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

How do you prevent a boat from rocking back and forth? How do you prevent a boat from rocking back and forth? Hi. we did this experiment without bilge keels and it worked very well. Once we did it with bilge keels and measured it to the right size and attached it to the boat the boat did not osscilate at all. What should we do? thanks Shana and Devora Re: How do you prevent a boat from rocking back and forth? Hi Shana and Devora, Your results sound very normal! Bilge keels are meant to… Read more

Catalase decompose hydrogen

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

Catalase decompose hydrogen Catalase decompose hydrogen Hello, I'm doing a science fair project about if increasing the temperature of milk will increase the efficiency of removing hydrogen peroxide from it using catalase. Because of this, I'm inclined to include the presence of milk in my experience by adding a large amount of it to a small amount of 3% hydrogen peroxide. But this will decrease the concentration of hydrogen peroxide and make the process catalyze harder and slower. Should I… Read more

Question about Make a Fire Snake activity

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

Question about Make a Fire Snake activity Question about Make a Fire Snake activity Type your question below and then press Submit! What would the chemical equation for this experiment be? Including reactants and products ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/make-a-fire-snake]Make a Fire Snake[/url] Re: Question about Make a Fire Snake activity The reaction involves the… Read more

Chromatography Experiment

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

Chromatography Experiment Chromatography Experiment (Posted on behalf of student/family) Initial post: We have followed the experiment (Skittles dye extraction) multiple times as indicated in the photo attached. We have allowed the samples to spend hours in the solvent and cannot get the chromatograph to spread. We repeated the experiment twice with red skittles, and then again twice with yellow skittles. We have even increased the saline concentration of the solvent from 1/8 tsp salt to… Read more

Using Mushrooms/Fungi to Make Fuel

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

Using Mushrooms/Fungi to Make Fuel Using Mushrooms/Fungi to Make Fuel I am currently researching fungi and the things it can do. I came across articles of mushrooms being used to make fuel but haven't found many resources for information. I have found some articles mentioning it but not going into detail about it and they are usually years old. Does anyone have any recommendations for what to do or know anything about this topic or if it's still relevant in any way? Re: Using… Read more

Are fingerprints inherited?

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

Are fingerprints inherited? Are fingerprints inherited? Hi! My science fair project is " Are fingerprints Inherited" I have to say that its a great project but my science fair is on friday February 9 2024 and at this point i might get a bad grade because i am stuck on the reliability for my science fair project. :D :) PLS HELP AND REPLY QUICK I NEED YOU HELP REPLY!!!! [Administrator note: project url:… Read more

Effect of light intensity and nutrient concentration on the bioluminescence of dinoflagellates

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

Effect of light intensity and nutrient concentration on the bioluminescence of dinoflagellates Effect of light intensity and nutrient concentration on the bioluminescence of dinoflagellates Hi, I'm working on a science fair project about the effect of light intensity and nutrient concentration on the bioluminescence of dinoflagellates. For my project I had three groups of dinoflagellates and they were all exposed to varying light intensity and nutrient concentration. Group 1 - 100 photons,… Read more

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