Ask an Expert (top 2,000 results)

Methodology- Bacteriophages

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

Methodology- Bacteriophages Methodology- Bacteriophages hello, so I am conducting an experiment testing the effect of bacteriophages at varying temperatures on bacteria. After looking at multiple different experiments, I am unclear on the methodology to do this experiment. All different experiments used different types of agar and solutions to plate the bacteria and to grow the bacteriophages, so how should bacteriophages be grown, and any advice on how to conduct this experiment,… Read more

What's the Fastest Way to Solve a Rubik's Cube?

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

What's the Fastest Way to Solve a Rubik's Cube? What's the Fastest Way to Solve a Rubik's Cube? Why does it say on the list of different parts in the science experiment, "What's the Fastest Way to Solve a Rubik's Cube?" that there are only 8 corner pieces and 12 edge pieces on the entire cube when there are really more? Do you multiply the number on the top and the number on the bottom to get the true answer? That would make sense, as the true answer is 24 for both of those. Re: What's the… Read more

Measuring vibrational frequency using light

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

Measuring vibrational frequency using light Measuring vibrational frequency using light Hello, I am working on a project measuring vibrational frequency using light. I was having trouble understanding how to make the circuit using a breadboard. I was wondering if there is a separate example of it or a schematic for the breadboard specifically. Thank you, Will Weaver Re: Measuring vibrational frequency using light Hi, We do not currently have a breadboard diagram available for this… Read more

Cell Phone

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

Cell Phone Cell Phone Hi, My name is Devin. I am in 6th grade and doing my science project about reaction time when a person is talking on a cell phone. People will be trying to catch a meter stick while they are talking on the cell phone. I will measure where they caught it. The farther down the stick, the longer it took them to catch it. Here is my problem. I know that I can only have one thing different each time i do a test. But if I say "go" before I drop the meter stick and they… Read more

Science Fair Project Catchy Title

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

Science Fair Project Catchy Title Science Fair Project Catchy Title Hello! Mu daughter is doing her 7th grade science fair project on: does salt water or lemon juice have any effect on the rate of dehydration of different types of apples? She'll be testing Gala, Granny Smith & Red Delicious apples in both salt water & lemon juice. However, she's having a hard time trying to title her project. Can you offer some catchy titles for her project? Re: Science Fair Project Catchy… Read more

What genes it does or doesn’t have that may influence its suitability for use as a probiotic?

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

What genes it does or doesn’t have that may influence its suitability for use as a probiotic? What genes it does or doesn’t have that may influence its suitability for use as a probiotic? Hi everyone, I'm a student working on a project - Analysis of the genome of a probiotic bacterium to support commercial development. I need help determining if the gene classes may be beneficial or detrimental to the strains used as a probiotic. For the overview of the project, I received 2 short read… Read more

Help for designer

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

Help for designer Help for designer Hello everyone. The topic will be more for graphic designers. I am new to this field and I am currently working on a project. I need a variety of curved lines for it. Where do you usually find such images for your works? Re: Help for designer There are many useful sites for aspiring graphic designers. It was there that I found all the elements I needed when starting out. Re: Help for designer Hello, The Science Buddies Ask the Expert forums are for… Read more

Question about Make Your Own Harmonica! activity

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

Question about Make Your Own Harmonica! activity Question about Make Your Own Harmonica! activity I found it very interesting to read this STEM lesson. I have a question, what does the structure of the Harmonica have to do with students' products? Can you explain more clearly about the physics knowledge used here? Thank you so much ------------------------------------- Leave this to help the Experts: The activity can be viewed at:… Read more

Artificial Pancreas (alternative for Peristaltic pump)

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

Artificial Pancreas Artificial Pancreas (alternative for Peristaltic pump) I can't find peristaltic pump in my area within 4 days. So, I need an alternative way to make Artificial Pancreas insulin project. Please reply asap Artificial Pancreas I have a 12V peristaltic pump. Instructions said, I need to add external power supply. If I connect an adapter with it, what type of adapter should I use? Also, the Arduino code will make the pump stop automatically. But if I give power supply… Read more

Explore Our Science Videos

Measure Pitch with Google's Science Journal App

Paper Bridges STEM Activity

Why Do Apples and Bananas Turn Brown? - STEM activity

Top

Free science fair projects.