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Science Fair project questions. Good project idea? If so, what is my Independent Variable?

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

Science Fair project questions. Good project idea? If so, what is my Independent Variable? Science Fair project questions. Good project idea? If so, what is my Independent Variable? Do you think this is a good idea for a Science Fair project? "Which has more bacteria on it in restaurants; menus or the entrance handle to the bathroom?" Our controls would be swabbing a brand new (right out of the box) handle, and a new printed menu. The dependent variables would be four samples swabbed from… Read more

Absorption of Radiant Energy by Different Colors- equation 5

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

Absorption of Radiant Energy by Different Colors- equation 5 Absorption of Radiant Energy by Different Colors- equation 5 I performed the exact equation you did for equation 5 and i always end up with a negative exponent When i do the equation with your numbers i also get a negative number. What you did wrong is when you divide with the 1.6 x 10 -19 you are using a positive 19. should i be using a positive 19 instead of a negative 19? Moderator Note: Hi Billily, I've combined your 3 posts… Read more

Lego shake table - graphing and variables

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

Lego shake table - graphing and variables Lego shake table - graphing and variables I am helping my kindergartener with the Lego shake table experiment, for his science fair project. He’s planning to build a few different tower heights and we will decide on several displacement values which we will repeat for each tower. I had a couple of questions: 1. How would you display the data in a fun way? Is there a certain type of graph that fits well with these variables and results? 2. Should the… Read more

Measuring glucose in food

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

Measuring glucose in food Measuring glucose in food https://www.amazon.com/Scientific-Glucose-Science-Diffusion-Experiments/dp/B08F5JSDYZ/ref=sr_1_31?crid=2ZAR0LTEU7UAM&keywords=bartovation&qid=1674322432&sprefix=bartovation%2Caps%2C364&sr=8-31 This is the link of what strips I am using, are these strips good for this project??? Please help :( Re: Measuring glucose in food This seems like it would work. Re: Measuring glucose in food I wanted to follow up with some… Read more

Question about Build Your Own Sports Equipment activity

Ask an Expert Topic Forum: STEM Activities

Question about Build Your Own Sports Equipment activity Question about Build Your Own Sports Equipment activity Do you like balls -------------------------------- :twisted: ----- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/make-sports-equipment]Build Your Own Sports Equipment[/url] Read more

Question about Build a Paper Roller Coaster activity

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

Question about Build a Paper Roller Coaster activity Question about Build a Paper Roller Coaster activity I previously did this project and it was great, but I was wondering if it would be better to use copy paper, construction paper or card stock. What is tried and true? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/paper-roller-coaster]Build a Paper Roller Coaster[/url] Re:… Read more

Big Five Personality traits and visual search test

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

Big Five Personality traits and visual search test Big Five Personality traits and visual search test Objective: Test to check which personality factors or traits best influence careers with extreme focus. Hypothesis: Low conscientiousness rates will result in missing targets, and thus not being able to join any career that signifies and necessitates high concentration levels. Question to be answered immediately by experts: IS my science fair project good ? and how can i improve it Re: Big… Read more

Smart Medicine Cabinet

Ask an Expert Topic Forum: Grades 6-8: Math and Computer Science

Smart Medicine Cabinet Smart Medicine Cabinet Hi, my name is Zara and i'm in grade 7. My science fair is very close and ive been trying to create a smart medicine alerting system. For my example for the judges I sent a timer for 10 seconds and made a serial monitor where if the medicine bottle is within 4 or less inches and the timer for 10 seconds reaches zero the buzzer i coded sounds and the LED lights up. I coded an if statement where if the medicine bottle is more than 4 inches away the… Read more

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