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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

Jumping Robot

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

Jumping Robot Jumping Robot My son’s science fair project is the jumping robot from this site. We got as far as placing the rubber bands at the top of the motor, but when we did the robot became top heavy. It no longer stands by itself. We are at a standstill now. Any suggestions? Please and thank you! Re: Jumping Robot Hi - for the robot to stand on its own, the center of mass needs to be directly above and inside the support area made by the "feet." If the center of mass falls outside… Read more

Help Needed on "Investigate the Kinetics of the Color Changing Iodine Clock Reaction" Project

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

Help Needed on "Investigate the Kinetics of the Color Changing Iodine Clock Reaction" Project Help Needed on "Investigate the Kinetics of the Color Changing Iodine Clock Reaction" Project Hi, I am following the procedures in the article which says to microwave cornstarch to form a starch solution needed for the reaction. During a test run, I forgot to microwave the cornstarch but the reaction seemed to continue without causing any problems. What is the effect of… Read more

I need help. My teacher said we needed research for our science fair projects and I don't know how to get that rescearch

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

I need help. My teacher said we needed research for our science fair projects and I don't know how to get that rescearch I need help. My teacher said we needed research for our science fair projects and I don't know how to get that rescearch My teacher approved the project "Marble Roller Coaster: How Much Height to Loop the Loop?" and I am toatlly confused because she says we need research and i'm confused on how to get that research. [Admin note: Project:… Read more

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