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

Validity of the WebFx Hex Color Picker Validity of the WebFx Hex Color Picker Hello, My daughter is working on a 7th grade science fair project and is doing the "Ho to Make the Boldest, Brightest Tie-Dye" experiment. I am trying to understand how the project suggested the use of the "color picker" tool which is the WebFx Hex Color Picker. The teacher wanted to know how we decided to use that specific tool, I know it is suggested, however how did they decided on that specific tool and a… Read more

Question about Build a Popsicle Stick Catapult activity

Ask an Expert Topic Forum: STEM Activities

Question about Build a Popsicle Stick Catapult activity Question about Build a Popsicle Stick Catapult activity The Most Complex Question in the World About a Popsicle-Stick Catapult In the world of simple engineering tools, few objects appear as unassuming as the popsicle-stick catapult. It is frequently used in classrooms and science fairs as an introduction to physics, elasticity, mechanical advantage, and projectile motion. Yet beneath its humble construction lies the potential for deep… Read more

Agricultural Biodegradable Ph Indicator Hydrogel

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

Agricultural Biodegradable Ph Indicator Hydrogel Agricultural Biodegradable Ph Indicator Hydrogel Hello, I am requesting your help on a experiment I am conducting. The experiment is an agricultural biodegradable Ph Indicator Hydrogel. For my hydrogel, I am following the instructions from Science Buddies, and for the Ph Indicator, I am using red cabbage. Will this work? I plan to pour the red cabbage in the hydrogel, and study whether the water is acidic or not. Moderator: Related projects:… Read more

fossil fuels

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

fossil fuels fossil fuels how can I show people that fossil fuel usage affects our planet? :cry: Re: fossil fuels Hello, That is a great idea! One way you could show that fossil fuel usage affects our planet is by looking at data from the past twenty or so years and comparing the usage of fossil fuels to climate change. A fun experiment to demonstrate the effect of greenhouse gases on our planet is to simulate it in a jar. Here is a link to instructions for this project:… Read more

Voltage measuring

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

Voltage measuring Voltage measuring I’m doing the “dealing with diabetes” project but when I measure the voltage of the conductivity sensor in the distilled and tap water they both come out to 5.07 which I know is above what it is supposed to be. Along with that, the voltage readings shouldn’t both be the same. Is there something wrong with my project? The attached file is what my project looks like so far in case it is an issue with that. [Administrator note: project URL:… Read more

Which Bait attracts flies (homemade Flytrap)

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

Which Bait attracts flies (homemade Flytrap) Which Bait attracts flies (homemade Flytrap) What are the variables including constants and controls. Moderator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Zoo_p065/zoology/bait-homemade-fly-trap Re: Which Bait attracts flies (homemade Flytrap) This project is an "abbreviated project idea," which means it doesn't have a step-by-step procedure. Instead, it's an "idea" around which you can design your own… Read more

Using Invertase for Glucose Experiment

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

Using Invertase for Glucose Experiment Using Invertase for Glucose Experiment Posted on behalf of student ----------------------------------- Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/HumBio_p035/human-biology-health/sugar-metabolism#materials Question: For the invertase can it be used after opened and diluted after a week? (It was put refrigerator but forgot to put for 1 day) Re: Using Invertase for Glucose Experiment Enzymes can be denatured from… Read more

microbiology project

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

microbiology project microbiology project I have to determine what unknown bacteria I have been given after performing a variety of tests, but I am struggling. None of my results perfectly match with research and therefore I am stuck on how to narrow it down. I am unsure how to interpret a couple of test results, so I have attached some pictures in hopes of receiving some help. Specifically regarding the semisolid motility test -- I cannot tell if this indicates motility or not. Here are… Read more

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

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Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

(Telegram:@officialtopshelfmenu0) BUY weed, cocain, Clone cards, fake note, guns (Telegram:@officialtopshelfmenu0) BUY weed, cocain, Clone cards, fake note, guns (Telegram:@officialtopshelfmenu0) BUY weed, cocain, Clone cards, fake note, guns, in uk, Copenhagen manchester,london, Birmingham, poland, France, poland, dubai, span, all europe (Telegram:@officialtopshelfmenu0) We have many products on DMT, LSD, MDMA, Psilocybin Magic mushrooms, cannabis, and microdosing psychedelics. Buy… Read more

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