Ask an Expert (Page 143)

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

Need help for my Science fair project Need help for my Science fair project Hello for my science fair project I am doing this one called “how far can you throw (kick) a ball?” And I was wondering if the website that it told me to go on it would allow me to do this on phone or iPad or just on a computer I am having a hard time trying to figure it out. Re: Need help for my Science fair project Hi - it looks like the "Tracker" program is only available for computers and not phones or iPads. If… Read more

Coffee ground into sugar

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

Coffee ground into sugar Coffee ground into sugar Hi! My project is to turn coffee into sugar. My parameter is only temperature. Is CCD suitable to use? Or should I use other methods? Read more

Not sure what all to buy...

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

Not sure what all to buy... Not sure what all to buy... Hello, I am helping my daughter (8th grader) with self driving car project - https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p042/robotics/arduino-self-driving-car. Our aim is to try 3 or more distance sensors such as HC-SR04 and collect data and prove which sensor is best. What we are confused about is: 1. What sensors like HC-SR04 can work with the blue robot kit. 2. Do we have to have 3 programs for 3… Read more

RFID Reader and Tags for Project:Keeping it private

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

RFID Reader and Tags for Project:Keeping it private RFID Reader and Tags for Project:Keeping it private So, on the project Keeping it private you have a product listed for RFID reader and tags to get for the project but when I press the link, it says the product is no longer available. So I’m wondering if there are any other reliable RFID readers and tags kit that I could use in replacement. Thank You Re: RFID Reader and Tags for Project:Keeping it private Hi - this will require some… Read more

Iron in Cereal

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

Iron in Cereal Iron in Cereal When experimenting with the cereal and magnets and collecting the iron samples, I know you will clearly be able to see which cereal contained the most iron. But how do know, or measure, whether or not it matches what the nutrition label says? Like how are we supposed to know if one little pellet of iron collected is the same as the 25% DV on the label?! Re: Iron in Cereal Hello! To figure out if the amount of iron you got matches the % DV on the label, you… Read more

Absorbption of Heat

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

Absorbption of Heat Absorbption of Heat Why do red objects absorb less heat than blue objects if the blue being reflected means that less energy is being absorbed than the red? Re: Absorbption of Heat It seems like the absorption of heat depends mostly on how dark or light a color is and not on the color itself. I would guess that red usually absorbs less heat because its usually lighter, but a dark red would heat up quicker than a light blue. Read more

Science Fair Help

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

Science Fair Help Science Fair Help Hello, I have a science fair coming up soon. For my experiment, I will use CDC recommended hand soaps and sanitizer on public areas bacteria and record my results to see which soap/sanitizer removed the most bacteria. I have a couple of questions for the experiment: 1. Is "Got Bacteria?" a good title? If not, how can I improve it. 2. Is a good question "Which CDC recommended hand soap or sanitizer work best to remove bacteria?". Also, I'm still thinking… Read more

Saltwater battery does not light LED bulb

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

Saltwater battery does not light LED bulb Saltwater battery does not light LED bulb Hi, We added table salt into normal tap water in a glass then placed a small rectangle copper flat rod and a zinc flat rod with alligator clips then connected it to the LED. The LED is working with a battery but it does not with the saltwater. What is my son missing? Regards Manju Re: Saltwater battery does not light LED bulb Hi - you may need to connect multiple batteries in series to light up an LED. A… Read more

PEPSE GT version 82

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

PEPSE GT version 82 PEPSE GT version 82 2022 crack software download. Please press Ctrl+F to find your cracked software you needed. --------------------------------------------------------------------- I have the more latest cracked softwares. If you need any softwares, please email me: crdlink#hotmail.com change # into @ --------------------------------------------------------------------- Use Ctrl + F to search the program you… Read more

DIgSilent powerfactory 2022

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

DIgSilent powerfactory 2022 DIgSilent powerfactory 2022 2022 crack software download. Please press Ctrl+F to find your cracked software you needed. --------------------------------------------------------------------- I have the more latest cracked softwares. If you need any softwares, please email me: crdlink#hotmail.com change # into @ --------------------------------------------------------------------- Use Ctrl + F to search the program you… Read more

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