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Purpose of Standard tests

Ask an Expert Topic Forum: Grades 9-12: Math and Computer Science

Purpose of Standard tests Purpose of Standard tests In this experiment, https://www.sciencebuddies.org/science-fair-projects/project-ideas/GreenChem_p008/green-chemistry/sunscreen-water-solubility what is the purpose of the standard testings of all the suncreens. How can I compare that to the one that was on the human? Read more

Microbial Fuel Cell Project

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

Microbial Fuel Cell Project Microbial Fuel Cell Project Hey, I am making a microbial fuel cell for my school science project. I am planning on making two of them, one with the kit from Home Science Tools and one from scratch. I was wondering if anyone could help me out with this project as I am fairly new. Is it possible for me to charge a device like a phone even if its just a tiny bit? I just want the charging symbol to pop up on my phone when I connect it if that's even possible. I read… Read more

Gas to rust: measuring the content of air

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

Gas to rust: measuring the content of air Gas to rust: measuring the content of air I am performing the gas to rust: measuring the content of oxygen in air experiment but I do not understand the formula and how to analyze my results Read more

Help With ISEF Project Presentation

Ask an Expert Topic Forum: Preparing for the Competition

Help With ISEF Project Presentation Help With ISEF Project Presentation Hi everyone, I'm a freshman in high school and I just got qualified for ISEF. What are some tips for the 7-min presentation with the judges? Thanks! Re: Help With ISEF Project Presentation Congratulations on your science fair project going to ISEF. What is your project on? You may find this resource helpful:… Read more

Disinfectant / Bacteria project problem

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

Disinfectant / Bacteria project problem Disinfectant / Bacteria project problem Posted on behalf of student ------------------------------------------ I am using the bacteria growing kit and was doing the disinfectants experiment. (https://www.sciencebuddies.org/science-fair-projects/project-ideas/MicroBio_p012/microbiology/how-well-do-disinfectants-work) I used plastic cups as my fomite (rather than the cutting board) and used water as my control group. I have the plates on cookie sheet… Read more

Science Buddies Build a Simple Drone and Test How Much It Can Lift

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

Science Buddies Build a Simple Drone and Test How Much It Can Lift Science Buddies Build a Simple Drone and Test How Much It Can Lift My 10-year-old son is working on a science fair project from Science Buddies called "Build a Simple Drone and Test How Much It Can Lift." We purchased the drone kit (made of popsicle sticks) from Home Science Tools. We followed the directions precisely. We got all the propellers to spin in the correct direction. It is still too heavy to lift. We tried… Read more

Question about Generate Electricity with a Lemon Battery activity

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

Question about Generate Electricity with a Lemon Battery activity Question about Generate Electricity with a Lemon Battery activity On the lemon energy experiment is there a way that I can measure that amount of electricity and then compare it with the electricity from other fruits and vegetables? Or just something I could measure. ------------------------------------- Leave this to help the Experts: The activity can be viewed at:… Read more

Orange v Sports Drink Resistor

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

Orange v Sports Drink Resistor Orange v Sports Drink Resistor Materials state that there is a resistor required, but it is not in the procedure. Where does the resistor fit into the procedure. I am not getting a good reading and have secured and tried every other trouble shooting trick. Thank you Re: Orange v Sports Drink Resistor Hi - The resistor is included in the kit. It is not used in the procedure. It is used for troubleshooting - if you think you have blown a fuse. There are… Read more

Question about Exploring Enzymes activity

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

Question about Exploring Enzymes activity Question about Exploring Enzymes activity For the enzyme lab where we can add the enzymes found in yeast into hydrogen peroxide, in the explore further section, if we wanted to know how environment affects the reaction and wanted to change either pH or temperature, do we change the environment of the hydrogen peroxide and soap solution or the enzyme solution? Please answer as fast as possible its for a School assignment. Thank you very… Read more

Science fair

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

Science fair Science fair My sons doing a science fair project showing soda and diet soda which float and sinks .. what would you write for the purpose? Read more

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