Ask an Expert (Page 160)

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

Science Fair project title ideas Science Fair project title ideas My daughter completed the “Why Aren’t all Medicines Pills” experiment for her science fair project. It is a great project and she really enjoyed it and learned a lot. For the presentation board, she is having trouble coming up with a catchy title. Any ideas or suggestions for a title for this project? Thank you for your help! Re: Science Fair project title ideas For a catchy title, unless something real good springs to… Read more

Need feedback on demonstration to educate kids on bacteria :)

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

Need feedback on demonstration to educate kids on bacteria :) Need feedback on demonstration to educate kids on bacteria :) [color=#40BFFF][color=#BFBF40]Hi all, I am new here so any advice and feedback is always appreciated! I have planned a demonstration to teach Grade 6-8 about the spread of bacteria. This demonstration would involve are completely safe, hypoallergenic and none toxic hand gel known as "Glo Germ". The Glo Germ is impossible to see under normal light, however, under the… Read more

Need help in making smart glasses

Ask an Expert Topic Forum: STEM Activities

Need help in making smart glasses Need help in making smart glasses Hi!! I am here to get help with my science project(not a school project) which is gonna be a smart glasses.I just did some research and have a basic model in mind but honestly, dont know which components go in the making and are they in available in my country or not but i will try my best if i do get a reply from you guys about a model that may work.I'll give it my all.I may be asking for a lot of help but i just need you… Read more

Question about Model of a Black Hole activity

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

Question about Model of a Black Hole activity Question about Model of a Black Hole activity Type your question below and then press Submit! Our 3rd grade student was fascinated by a NASA poster showing spaghettification of a rocket ship. He wants to show how this happens. He wants to use a magnet and a slinky to show how this happens. I wanted to eliminate the magnet as I didn’t want him to confuse gravitational force from magnetic force. So he thought a vacuum’s sucking power might show… Read more

Biology

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

Biology Biology The reproductive system in both males and females are controlled and regulated by the interaction of hormones from the hypothalamus and pituitary glands with hormones from the reproductive organs. How do these hormones affect the development of male and female reproductive systems? (Provide an answer of minimum of 25 words) Re: Biology Hello, The experts here at Science Buddies can not answer questions about homework assignments! Read more

URGENT!!!????? HELPPP!!

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

URGENT!!!????? HELPPP!! URGENT!!!????? HELPPP!! Hi all, I am a seventh grader and I need a good title for my science fair project! My project researches whether bacteria levels in pond water decrease or increase when in temperatures outside of its "life zone". Thanks!! Re: URGENT!!!????? HELPPP!! If you're looking for a catchy title, you could try something like "Hot, Cold, Just Right: Bacterial Growth In Varying Temperatures". Maybe play with the "life zone" being similar to the… Read more

Archimedes Screw

Ask an Expert Topic Forum: STEM Activities

Archimedes Screw Archimedes Screw In the Science Fair Project for the Archimedes Screw [url]https://www.sciencebuddies.org/science-fair-projects/project-ideas/ApMech_p039/mechanical-engineering/build-archimedes-screw-pump[/url] the procedure lists the period as the length of the pipe divided by the number of times the tube is wrapped around the pipe. In the FAQ for "how to find the period", it lists the period as the reciprocal (# of wraps/length). Which is the correct way to find the… Read more

Now you see it, now you don't science experiment

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

Now you see it, now you don't science experiment Now you see it, now you don't science experiment My son has completed the "Now You See It, Now You Don't - how acidic groundwater makes rocks disappear" experiment. The changes in mass over time indicate that the experiment went "as expected", as the mass decreased for the rocks in the vinegar solutions. However, his PH values are confusing and we are concerned they are not correct. We helped him make the solutions so feel that the start of… Read more

About moles of alanine, iron and nitrobenzene

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

About moles of alanine, iron and nitrobenzene About moles of alanine, iron and nitrobenzene I need some answer guys. please help me. 1. How many Moles of alanine would be formed if 3.78moles of iron and 5.69 moles nitrobenzene were mixed in excess water. 2. How many grams of alanine would be formed if 3.78g of iron and 5.69 g of nitrobenzene were mixed in excess water. 3. How many grams of alanine would be formed if 32.78g of iron were mixed with 23.89g nitrobenzene in excess water. if… Read more

Ask an Expert (top 2,000 results)

Explore Our Science Videos