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Which would live longer?

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

Which would live longer? Which would live longer? My question is which would live longer, an invasive plant species or a native plant species. Can someone help me? Re: Which would live longer? Hi, Is your question in reference to a science project you are doing or planning? This forum is specifically for developing science projects, experiment planning and trouble-shooting. If you would care to describe your project with the hypothesis and methods, we may be able to help with the… Read more

Growing bacteria and antimicrobial activity

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

Growing bacteria and antimicrobial activity Growing bacteria and antimicrobial activity Hello, I'm going to have a science fair this year. My topic is to observe which plant extracts affect the death of bacteria the most. I've completed the procedure of my experiment by asking lots of experts, but I'm not sure about safety, so I want to get a final check from experts. I'm going to do this experiment at home. I will disinfect all items and place before and after the experiment. First of all,… Read more

PLS HELP - URGENT

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

PLS HELP - URGENT PLS HELP - URGENT Hello, On the Waste Not Want Not page (building an MFC), I am wondering about the Making salt bridges part. What tubes are they talking about? I thought the agar solution was simple poured into the petri dish and put into the fridge. [i]these are the instructions:[/i] [i]2) Cover one end of the tube section from the compression fitting securely with aluminum foil. Repeat with the tubes from all of the compression fittings. Place all tubes, open end up,… Read more

Question about How Fish Sink and Float activity

Ask an Expert Topic Forum: STEM Activities

Question about How Fish Sink and Float activity Question about How Fish Sink and Float activity Greetings ! The article How Fish Sink and Float explains the behavior of the balloon-bottle system. But using these observations to explain the behavior of bladdered fish is completely wrong! The article ignores a whole scientific literature dating back to the 60s [Root effect, rete mirabile, oval body etc.] The example of the gas-free balloon that sinks the bottle and floats it when filled with… Read more

soap2day.to

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

soap2day.to soap2day.to Soap2Day is essentially a loose streaming web site that lets in users to be utilized by users from all over the global to download and watch tv shows, films, and indicates at no cost. Official Soap2Day website became close off the internet due to issues with piracy and this web site came up with comparable capabilities and features. You can utilize this web site to flow your selected content material at the net without downloading it and downloading it should you want… Read more

soap2day.to

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

soap2day.to soap2day.to Soap2Day is essentially a loose streaming web site that lets in users to be utilized by users from all over the global to download and watch tv shows, films, and indicates at no cost. Official Soap2Day website became close off the internet due to issues with piracy and this web site came up with comparable capabilities and features. You can utilize this web site to flow your selected content material at the net without downloading it and downloading it should you want… Read more

measurements

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

measurements measurements Hello[url=https://boobsgifs.com].[/url] I finished the experiment and have a question about results. My index numbers for each of the sugar preparations get smaller as the percentage goes up, and all of them and the angles are smaller than the one with plain water. My question is: shouldn't I expect the angles to increase as the percentage of sugar increases since it should slow the light down and make it "bend" more? Read more

Questions about rotating prism in Measuring Sugar Content of a Liquid with a Laser Pointer

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

Questions about rotating prism in Measuring Sugar Content of a Liquid with a Laser Pointer Questions about rotating prism in Measuring Sugar Content of a Liquid with a Laser Pointer Hello and thank you in advance. I'm a teacher guiding a student with the project "Measuring Sugar Content of a Liquid with a Laser Pointer" [url]https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p028/physics/measuring-sugar-content-of-a-liquid-with-a-laser-pointer[/url] and I have some… Read more

Category and data collection Question

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

Category and data collection Question Category and data collection Question My daughter is applying glogerm to her hands and then washing her hands with different types of soap to see if one type is better at cleaning her hands than others. What category would this be in for a science fair? Is it chemistry, medicine/health or consumer science or something else? She has to enter a category for registering. Also after she applies the glogerm she will take a picture showing that her hands… Read more

Simple drone won’t lift

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

Simple drone won’t lift Simple drone won’t lift My daughter is doing the simple drone project from Popsicle sticks. We have followed all directions and verified multiple times everything was correct and the drone will not lift. Please help with some trouble shoot options other than checking wires because they’re all correct. We can also feel air under the propellers so I don’t think that’s the issue either and we’re running out of time. Re: Simple drone won’t lift Hi, Just to clarify, you… Read more

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