Ask an Expert (Page 170)

Question about How Salty Does the Sea Have to Be for an Egg to Float? activity

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

Question about How Salty Does the Sea Have to Be for an Egg to Float? activity Question about How Salty Does the Sea Have to Be for an Egg to Float? activity Type your question below and then press Submit! How do you calculate the absolute and relative concentrations in this experiment? How do we figure the densities of the eggs? I have reviewed the info in science buddies but still don’t understand how to calculate those results. Will you please help me? Thanks! Moderator note: I've… Read more

Question about Shed Light on Electric Generators: Do More Coils Generate More Electricity? activity

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

Question about Shed Light on Electric Generators: Do More Coils Generate More Electricity? activity Question about Shed Light on Electric Generators: Do More Coils Generate More Electricity? activity Type your question below and then press Submit! When testing the generator, the led would not light up. Checked the output with a multimeter and would only get .5 volts max. ------------------------------------- Leave this to help the Experts: The activity can be viewed at:… Read more

Question about Paper Ball Run Challenge activity

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

Question about Paper Ball Run Challenge activity Question about Paper Ball Run Challenge activity Fluor Ball Run: If a student comes up with a way to fold a column or a ramp, can they draw it multiple times on a piece of paper and make copies of it like a template? ------------------------------------- Leave this to help the Experts: The activity can be viewed at:… Read more

Phage therapy

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

Phage therapy Phage therapy I am using sewage sample to isolate bacteriophage but after many rounds of enrichment, I am not able to get sufficient phage titre and the spot assay is not showing much clearance. Please suggest why Re: Phage therapy Hello! Can you share the procedure that you used to isolate the bacteriophages? We can take a look at it and see if we can identify where it might be going wrong. Re: Phage therapy Sewage sample was collected. It was centrifuged at 4C at… Read more

Healthy Microbiomes vs Viruses

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

Healthy Microbiomes vs Viruses Healthy Microbiomes vs Viruses In light of prophylactic antibiotics given to help prevent secondary infections in covid, I wondered whether killing the good bacteria might be harmful. Last year, I did a project where I knocked out the bacterial microbiome in bean plants. I then infected the plants with tobacco mosaic virus and found that the virus was more infective in the absence of a good soil microbiome. I won both our Colorado State and Pikes Peak Regional… Read more

Need Title! Question about Modeling the Human Cardiovascular System: The Factors That Affect Blood Flow Rate activity

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

Need Title! Question about Modeling the Human Cardiovascular System: The Factors That Affect Blood Flow Rate activity Need Title! Question about Modeling the Human Cardiovascular System: The Factors That Affect Blood Flow Rate activity Type your question below and then press Submit! Im confused on what the constant would be here. Thanks! Actually never mind I forgot not all experiments have a constant. Also stuck on a title. Any ideas would be fondly… Read more

Artificial Pancreas Pump

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

Artificial Pancreas Pump Artificial Pancreas Pump Hello, I'm currently working on my science project which is based off of the Dealing with Diabetes: The Road to Developing an Artificial Pancreas project. For some reason my pump does not turn off when the solution neutralizes. Even though the original neutralized solution is 7, and the conductivity sensor is first calibrated in that solution, the pump does not turn on. Any… Read more

Data collection in Drugs & Genetics Project

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

Data collection in Drugs & Genetics Project Data collection in Drugs & Genetics Project Hello, this is my first year in my school’s Science Research class, and I have chosen to do the Science Buddies project “Drugs & Genetics: Why Do Some People Respond Differently Than Others?” for science fair. After looking through the project and doing my background research focused on the drug Carbamazepine, I am worried that the data is not sufficient for my project. I am unsure of what… Read more

NEEDED: INTV with a Transportation Engineer ASAP

Ask an Expert Topic Forum: Interview Requests

NEEDED: INTV with a Transportation Engineer ASAP NEEDED: INTV with a Transportation Engineer ASAP Hello, my 8th grade son needs to interview a Transportation Engineer for his Science Fair Project asap. He has the following 6 questions... 1. What are the pros and cons of transportation using kinetic energy? 2. How much energy is lost using vehicles on the ground versus vehicles that are not grounded such maglev technology and airborne vehicles? 3. What are the pros and cons using… Read more

Question about Is it Getting Hot in Here? Investigate the Greenhouse Effect activity

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

Question about Is it Getting Hot in Here? Investigate the Greenhouse Effect activity Question about Is it Getting Hot in Here? Investigate the Greenhouse Effect activity Hello, Because of the winter condition in Canada (where I live), I will not be able to perform this experiment under the sunlight. Hence, can I simulate the sun using a floodlight to do this experiment? Thanks, Aarav ------------------------------------- Leave this to help the Experts: The activity can be viewed at:… Read more

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