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Question about Elephant Toothpaste activity

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

Question about Elephant Toothpaste activity Question about Elephant Toothpaste activity what is the chemical equation for the reaction ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/elephant-toothpaste]Elephant Toothpaste[/url] Re: Question about Elephant Toothpaste activity Hi! The chemical reaction for elephant toothpaste is 2 H₂O₂ → 2 H₂O + O₂ (gas). Basically your hydrogen… Read more

Clinostat Arduino Project

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

Clinostat Arduino Project Clinostat Arduino Project Posted on behalf of student Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p054/plant-biology/plants-grow-microgravity-arduino-clinostat ------------------ Hi, I am building the clinostat with the Arduino Uno R4 Minima and after inputting the code and downloading it to the arduino, the motor won't turn or work, what do I do? Read more

Ultrasonic Levitator

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

Ultrasonic Levitator Ultrasonic Levitator Posting on behalf of student Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p121/electricity-electronics/ultrasonic-levitator ------------------------------------------ I followed the instructions in this page to create the ultrasonic levitator. I did the same wiring as mentioned in the page except for the power supply, as mentioned in the video, I added the power supply to the arduino and did the wiring based on… Read more

Question about Erupting Diet Coke® with Mentos® activity

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

Question about Erupting Diet Coke® with Mentos® activity Question about Erupting Diet Coke® with Mentos® activity Type your question below and then press Submit! What does the ridges on a Mento have to do with the reaction when you put it in a coke or carbonated drink of some kind? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/diet-coke-mentos]Erupting Diet Coke® with… Read more

How is the Engineering Method Different?

Ask an Expert Topic Forum: Using the Scientific Method and Engineering Design Process

How is the Engineering Method Different? How is the Engineering Method Different? How is the engineering method different than the scientific method? Not sure which to pick. Re: How is the Engineering Method Different? Great question! Like the Scientific Method, the Engineering Design Process (or "engineering method") is a set of steps that help outline the process engineers follow to come up with a solution to a problem. These steps include: [list][*]Define the problem. [*]Do background… Read more

Question About Domino Theory

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

Question About Domino Theory Question About Domino Theory Hi, I am doing a project about domino spacing, and I think I'm supposed to have one independent variable. I have two sets of dominoes with different weights that I'm going to use. I will take different trials with different spacings. I think the independent variables are both the spacing and the weight. Am I right, or is it one for each group? How would I show that on my board? Moderator note: … Read more

Experience the Evolution of Fighting Games in GUILTY GEAR -STRIVE-

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

Experience the Evolution of Fighting Games in GUILTY GEAR -STRIVE- Experience the Evolution of Fighting Games in GUILTY GEAR -STRIVE- Step into the visually stunning and adrenaline-fueled world of GUILTY GEAR -STRIVE-. Developed by Arc System Works, this latest installment in the legendary series redefines the modern fighting game with a perfect blend of accessibility and depth. From its breathtaking 2D/3D hybrid graphics to its heavy metal-inspired soundtrack, STRIVE doesn’t just continue… Read more

Macroinvertebrates as indicators of pollution project

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

Macroinvertebrates as indicators of pollution project Macroinvertebrates as indicators of pollution project Hello, we are wondering if Table 1 is just an example of a longer list that we are to create to document more invertebrates and also, how are we to draw conclusions about the health of the waterway or the susceptibility of macroinvertebrates to pollution? Is it a matter of researching each invertebrate to learn about their role in the waterway? Is there a reference(s) that one can… Read more

Question about Make an Alka-Seltzer Powered Lava Lamp activity

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

Question about Make an Alka-Seltzer Powered Lava Lamp activity Question about Make an Alka-Seltzer Powered Lava Lamp activity Type your question below and then press Submit! What is the difficulty of this project ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/make-a-lava-lamp]Make an Alka-Seltzer Powered Lava Lamp[/url] Re: Question about Make an Alka-Seltzer Powered Lava Lamp… Read more

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