Ask an Expert (Page 38)

dead zones

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

dead zones dead zones i am part of a team that is working on dead zones, could I fix dead zones by pumping oxygen rich water into it and mixing it around? Re: dead zones Hello! This is a very interesting question. Yes technically you could pump oxygen rich water into dead zones and mixing it around, but there are 2 issues with that: 1. If it is a large/deep dead zone it will be hard to do this process. 2. This would only be a temporary fix, because you are not fixing the problem at it's… Read more

Doing a script about synthetic vaccines

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

Doing a script about synthetic vaccines Doing a script about synthetic vaccines Hi! I'm a student interested in biochemistry and doing a script about synthetic vaccines. I know that they are supposedly man made proteins to form RNA, but what exactly is the chemistry part about this? :D Re: Doing a script about synthetic vaccines Hello! It's awesome you are exploring biochemistry and synthetic vaccines! Synthetic vaccines are developed using synthesized peptides or proteins instead of whole… Read more

PVA Glue Ingredients

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

PVA Glue Ingredients PVA Glue Ingredients Hello Experts! I am helping my 7th grade son with a project. He wants to test the strength of various brands and types of PVA glue to find out which is the strongest. Knowing the ingredients of the various types does not help him with the actual experiment, but it would perhaps influence his hypothesis as well as help him understand why they performed differently in his experiments. I have done a lot of searching on brand websites and MSDS sheets but… Read more

Questions about the melt rate of ice

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

Questions about the melt rate of ice Questions about the melt rate of ice I'm doing a science fair project about how the shape of ice affects how fast it melts, and I have some questions about the melting rate of ice. I have two related questions: Do ice cubes melt faster on top of a hot surface, or surrounded by warm air? and Would an ice cube surrounded by other ice cubes melt at a different speed than a single ice cube in the same place? Re: Questions about the melt rate of… Read more

Question about How Do Viruses React To Soap? activity

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

Question about How Do Viruses React To Soap? activity Question about How Do Viruses React To Soap? activity Type your question below and then press Submit! What is a dependent variable and independent variable for the topic.. How do viruses react to soap? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/show-soap-kills-virus]How Do Viruses React To Soap?[/url] Re: Question about How Do… Read more

Water Filter Project Assistance

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

Water Filter Project Assistance Water Filter Project Assistance Hi, my name is Symone and I'm in the 10th grade currently conducting a project about how tropical communities around the world can utilize natural and sustainable resources to create fresh water, free of harmful microbes. Right now, I am working on building three different water filter designs that all include sand and gravel as the base, with different sustainable and accessible materials that will vary from filter to filter. I… Read more

Artificial pancreas model

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

Artificial pancreas model Artificial pancreas model Hey everyone I'm working on an artificial pancreas model, but I've been facing some issues in choosing the appropriate materials that are also available where I live. The project uses a 5-6 V peristaltic liquid pump with motor current 500 mA. This pump is unfortunately not an option for me but I found a mini submersible water pump 3-5v with 180 mA current. I also found an R385 DC 6-12V pump with 500-700 mA current. The project also uses an… Read more

Growing rock candy crystals project

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

Growing rock candy crystals project Growing rock candy crystals project We are not sure if we conducted this project correctly, after making the sugar water solution the water is yellow and thick not clear like the picture. Does this mean the project was done wrong? Moderator: project https://www.sciencebuddies.org/science-fair-projects/project-ideas/FoodSci_p005/cooking-food-science/growing-rock-candy-crystals Re: Growing rock candy crystals project Hello! This color might be caused by… Read more

Need Help Making Blue Bot Work

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

Need Help Making Blue Bot Work Need Help Making Blue Bot Work Hello, we purchased the Blue Bot 4-in-1 kit and have been trying to get at least one of the projects to work. In particular, we built the Line Following version of the robot and the problem is that one of the wheels spins much faster than the other. In addition, this fast spinning wheel spins on its own (i.e. without the sensor being exposed to white paper) if one toggles the MOSFET by touching it on the top. As a result when you… Read more

Projects in Petroleum engineering

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

Projects in Petroleum engineering Projects in Petroleum engineering What are simple home-done projects in petroleum engineering using simple tools? Re: Projects in Petroleum engineering Hi! Just so that I can narrow your search down, do you know what you want to accomplish in this kind of a project? As in, do you want to explore ways of extracting oil? Or seeing what types of rocks have the most oil? Or is there something else you want to look into? If you want to see what types of rocks… Read more

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