Ask an Expert (Page 79)

Wondering How to average my expirment results?

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

Wondering How to average my expirment results? Wondering How to average my expirment results? Hello I am doing my project on which drink has more electrolytes sports drink or orange juice and I am wondering do I average the results regularly like a regular experiment add it all up then divide by 3? [Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p053/chemistry/electrolyte-challenge-orange-juice-vs-sports-drink ] Re: Wondering How to average my expirment… Read more

Line-following robot

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

Line-following robot Line-following robot [Posted on behalf of educator ] My students are working on building the line-following robot. I think I am struggling setting up a course for them that the robot will follow the line. What line thickness do you recommend for the course? We have tried several ways to slow down the robot as well, what are some other tricks that you recommend for that? [Project:… Read more

Artificial Pancreas

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

Artificial Pancreas Artificial Pancreas Hello dear friends, This is Eduardo from Honduras, i´m actually developing this project for my sister's science fair, and I would like to ask which changes, or what components we have to aggregate using a 12 V pump instead of a 5 V. Kind regards, Greetings from Honduras. Re: Artificial Pancreas Hi, If you are using a 12V pump then you will need an external 12V power supply and you will not be able to power the pump directly from the Arduino's 5V… Read more

earth science fair porject ideas

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

earth science fair porject ideas earth science fair porject ideas any ideas? Re: earth science fair porject ideas There are a lot of great options found on this website under Science Projects. If you look near the bottom left, there is a section for earth science project ideas. Hope this helps! Read more

Re: detecting plastic with an ROV

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

detecting plastic with an ROV detecting plastic with an ROV I'm currently working on an engineering project relating to arduino. my team and I stumbled upon the idea of making a ROV that's controlled by a joystick and has a sensor that detects plastic. similarly to a video science buddies have posted but instead a camera, a sensor will be used. any idea how to install the sensor and program it, and what kind of sensor we should use? Re: detecting plastic with an ROV Hello! This is a very… Read more

detecting plastic with an ROV

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

detecting plastic with an ROV detecting plastic with an ROV I'm currently working on an engineering project relating to arduino. my team and I stumbled upon the idea of making a ROV that's controlled by a joystick and has a sensor that detects plastic. similarly to a video science buddies have posted but instead a camera, a sensor will be used. any idea how to install the sensor and program it, and what kind of sensor we should use? Re: detecting plastic with an ROV Hello! This is a very… Read more

Building a motion-activated Guard Robot using vero-board

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

Building a motion-activated Guard Robot using vero-board Building a motion-activated Guard Robot using vero-board I want to create the Motion-Activated Guard Robot but instead of using breadboard I will be using vero-board, can I get help on how to start? Re: Building a motion-activated Guard Robot using vero-board Hi - can you be more specific about what you need help with? We have a tutorial about soldering… 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 Your picture of a detergent molecule/micelle and the statement/description of a detergent molecule are contradictory to each other. The illustration says the heads are hydrophobic and tails hydrophilic, but the written statement says they are similar to the lipid membrane of a cell with hydrophilic heads and hydrophobic tails. Clarification or correction? Thank you.… Read more

i need help making a lava lamp for 4th grade science fair

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

i need help making a lava lamp for 4th grade science fair i need help making a lava lamp for 4th grade science fair I don't know what makes it glow help me please Re: i need help making a lava lamp for 4th grade science fair Hello, Are you working on this STEM Activity? Make an Alka-Seltzer Powered Lava Lamp ( https://www.sciencebuddies.org/stem-activities/make-a-lava-lamp ) The picture at the top of this webpage that makes the "lava lamps" look like they are glowing has been taken… Read more

Paper Towels (title help)

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

Paper Towels (title help) Paper Towels (title help) I need to find a catchy title for my science fair project within the next three days. My project is about the absorbency of paper towels and which brand absorbs the most water once dipped in it for one minute. Re: Paper Towels (title help) Hello, That sounds like an interesting project! Here are a few name ideas: Powerful Paper: A Study on Paper Towel Absorption Sponge or Sham? An Exploration of Paper Towel Absorption Rates On Your Mark,… Read more

Ask an Expert (top 2,000 results)

Explore Our Science Videos