Ask an Expert (Page 55)

Thyroid Cancer Recurrence

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

Thyroid Cancer Recurrence Thyroid Cancer Recurrence Hi, I am getting this error when running Code Block 1Z. --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-140-20fc8ed86092> in <cell line: 2>() 1 # Fitting the model to the training data (X_train) and corresponding labels (y_train) ----> 2 model.fit(X_train, y_train) 6… Read more

Arduino boards

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

Arduino boards Arduino boards Hello, We purchased the kit for the plants in microgravity project. We wired Arduino board according to the diagram provided and it is not working. We also noticed a different wiring in the picture where it is mounted and in the video as well. Still no success. We have checked everything. Any suggestions? [Administrator note: Project url:… Read more

Measuring Wood Burning

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

Measuring Wood Burning Measuring Wood Burning We are doing the "Which Kind of Wood Burns Slower" science fair project. How would we go about measuring which burned slowest? Any advice on how we would collect that data? (Admin added - PI link: https://www.sciencebuddies.org/science-fair-projects/project-ideas/MatlSci_p026/materials-science/which-kind-of-wood-burns-slower ; broken links in the bibliography have been reported and will be updated.) Re: Measuring Wood Burning Hello, This… Read more

floating spinach leaves

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

floating spinach leaves floating spinach leaves I did a lab in school on photosynthesis and floating spinach leaves. My group followed the steps in the lab. Our spinach leaves didn't sink and then start to float. They just floated when we poured them in the petri dish. What went wrong? Re: floating spinach leaves Hello, https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p020/plant-biology/chlorophyll-extraction is this your experiment? If so you are supposed to rub… Read more

Light Tracking Bristlebot HELP

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

Light Tracking Bristlebot HELP Light Tracking Bristlebot HELP Having trouble with our bots. Teaching a stem class with 15 students. Only two bits worked correctly. Trouble seems to be with the potentiometers. We purchased our parts in bulk and NOT the kit. The potentiometers we purchased have offset prongs. The bot motors work when these are removed. When we set them into position and turn the knobs the motors do not work. Keep in mind we have two that work perfect even after being… Read more

Solar powered robots to use

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

Solar powered robots to use Solar powered robots to use Hello, I am making a science fair project based off of either of these two questions: "Is solar power beneficial to our community?" & "Will robots be integrated into our everyday lives?". For the first one, I am planning on using machinery to show how solar power can be translated onto actual machines and such. However, I don't know where to find simple solar-powered robots. Can you guys help? :D Thanks, AJ Will robots be… Read more

Chitin

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

Chitin Chitin Hello, I'm Tiam. My high school project in astronomy is about protecting astronauts on Mars from cosmic rays. I have a few ideas for astronaut costumes satellites that are a bit vague for me. In my research, I learned that chitin is a resistant polymer that exists in the body of scorpions and cockroaches, and on the other hand, cockroaches and scorpions are creatures that do not die after a nuclear explosion. I want to know that is chitin that resistant? How can it be used in… Read more

Question about Make Magnetic Slime activity

Ask an Expert Topic Forum: STEM Activities

Question about Make Magnetic Slime activity Question about Make Magnetic Slime activity Type your question below and then press Submit! Which magnet is the most affective to magnetic slime? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/magnetic-slime-recipe]Make Magnetic Slime[/url] Read more

Question about Make Magnetic Slime activity

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

Question about Make Magnetic Slime activity Question about Make Magnetic Slime activity Type your question below and then press Submit! Which magnet is the most affective to magnetic slime? ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/magnetic-slime-recipe]Make Magnetic Slime[/url] Re: Question about Make Magnetic Slime activity Hi there, For this slime and for all magnetic… Read more

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