Ask an Expert (Page 133)

Winter/Summer Sun Angle

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

Winter/Summer Sun Angle Winter/Summer Sun Angle I know the sun angle, the earths tilt, causes summer and winter. Is this because of the distance the light has to travel in the atmosphere with a greater angle? If yes, what the difference in atmosphere distance between summer and winter? Re: Winter/Summer Sun Angle Hi - this forum is intended for K-12 students working on science projects. If your question is related to a student science project, please provide more details and we may be able… Read more

The Skinny on Moisturizers -jello flavour/colour

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

The Skinny on Moisturizers -jello flavour/colour The Skinny on Moisturizers -jello flavour/colour Hi there! For my science fair project I am doing the skinny on moisturizers. I suggest reading the experiment before answering this. Anyways, for the jello, they use the green lime flavouring. I was wondering if I could use any flavour or colour for the jello. Also, my science teacher told me to put my jello/moisturizer samples at a room temperature room with the lid of the Petri dish open. How… Read more

nice discussion

Ask an Expert Topic Forum: STEM Activities

nice discussion nice discussion With the choice of the front door, I need to choose where to order it and which door will suit me better, so glass paneled exterior doors https://unitedporte.us/entry-doors/with-glass is what I prefer. Good design and excellent quality, not to mention the best price, so I chose one for me on this website. Read more

Eyewitness reliability- what's the control group

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

Eyewitness reliability- what's the control group Eyewitness reliability- what's the control group I have to turn in the basic summary with the control group and experimental group on my project today and I can't figure out which group is which. Read more

Going Green as You Clean: Are 'Green' Detergents Less Toxic Than Conventional Detergents?

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

Going Green as You Clean: Are 'Green' Detergents Less Toxic Than Conventional Detergents? Going Green as You Clean: Are 'Green' Detergents Less Toxic Than Conventional Detergents? This experiment tells us to use worms, is it possible for us to switch out the worms for stained clothes? Re: Going Green as You Clean: Are 'Green' Detergents Less Toxic Than Conventional Detergents? Hello! I'm sorry for the late response. The purpose of using the worms is to test whether or not the "green"… Read more

Compensating gear for engaging and disengage idler gear to output gear

Ask an Expert Topic Forum: STEM Activities

Compensating gear for engaging and disengage idler gear to output gear Compensating gear for engaging and disengage idler gear to output gear Hi, I am building a conveyer lift to send cut plywood (4ft x 8ft x 40mm) into a 20-tier conveyor rack. I like my conveyer motor to be on the conveyer lift only. I need the motor to drive the lift conveyer belt and the rack conveyer belt when it stops on that level. Please point me to the right mechanism or gear to use. I prefer fully mechanical than… Read more

Help on bioengineering kidney from stem cell

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

Help on bioengineering kidney from stem cell Help on bioengineering kidney from stem cell Hello, I am doing a project on using stem cell for bioengineering kidneys. They mentioned in the project that new studies have come out looking at differentiating pluripotent stem cells into Bowman's capsule cells and looking at soluble factors for that. I did literature search but am not able to find papers on this. Can you help me find some relevant studies? Thank you Read more

HELP!!! Need Catchy title!

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

HELP!!! Need Catchy title! HELP!!! Need Catchy title! I need help figuring out a catchy title for my project: "What is the Effect of Permeable Pavement on Preventing Urban Flooding?" My hypothesis is that permeable pavement is more effective in reducing surface runoff than regular paved concrete with a storm drain. PLEASE HELP ME! RESPOND! :oops: :cry: :| Re: HELP!!! Need Catchy title! Hi! This sounds like a cool experiment! Typically science fair project names consist of a catchy… Read more

In need of a mentor

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

In need of a mentor In need of a mentor Hi, I know this may be a little bit unprecedented but could anyone in this forum volunteer to be my mentor for my science fair project. I desperately need one. The only real qualifications are that you are 21 and older and have some form of expertise in the realm of marine biology. I would really appreciate it, if you can mentor me please reply with your email down below so we can begin the process, thank you so much! Re: In need of a mentor Hi -… Read more

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