Ask an Expert (Page 81)

Fighting the Flu: How Your Immune System Uses Its Memory

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

Fighting the Flu: How Your Immune System Uses Its Memory Fighting the Flu: How Your Immune System Uses Its Memory Hello, For my project's experiment iron fillings are used and so are Magnetic tape and a Digital scale with 0.1-g increments. On the page, it gives a link to these items on Amazon but my science fair is in 4 days, so the materials won't come in time. Do you know if there is anything else I could use instead of these items? Or if there is any specific place I could buy them from?… Read more

Dam model with safety systems

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

Dam model with safety systems Dam model with safety systems I need to build a model dam with 2 solenoid valves. One is for normal activation, the other is emergency. Unfortunately, I have no idea of how to wire this all up and code it. Can someone please explain the wiring and coding to me?(Note: I am using relays for the valves.) Re: Dam model with safety systems Hi, This is more than we can really teach you how to do in a forum post. We have a resource page about how to use an Arduino… Read more

Needed: interview with a hardware engineer

Ask an Expert Topic Forum: Interview Requests

Needed: interview with a hardware engineer Needed: interview with a hardware engineer Name: How long have you been an engineer? : Where did you go to college to get your engineering degree? : What kind of classes did you have to take in college? : What are some things you like about your job? : What are some dislikes? : Would you change or do different if you knew what you know now? : How much money should I anticipate earning when I get my degree? : Would you recommend this… Read more

Question about Exploring Enzymes activity

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

Question about Exploring Enzymes activity Question about Exploring Enzymes activity Can you recommend suitable dish wash or any other alternative substance for dish wash. As expected form is not observed even after trying with various dish washes . ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/explore-enzymes-catalase]Exploring Enzymes[/url] Re: Question about Exploring Enzymes… Read more

Magnetic tape for Maglev train project

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

Magnetic tape for Maglev train project Magnetic tape for Maglev train project Hello, does anybody know anywhere that I could get magnetic tape that is monopolar? Re: Magnetic tape for Maglev train project Hello! A couple of places you can go to for monopolar magnetic tape are: - Amazon - Ebay - Specific electronic suppliers (like Mouser) Hope this helps! Morgan Re: Magnetic tape for Maglev train project Hi - The project… Read more

Materials for Rubber Band Car Challenge

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

Materials for Rubber Band Car Challenge Materials for Rubber Band Car Challenge Hi! I have a question about the plastic bottle caps allowed for the 2024 rubber band car engineering challenge. Are students just allowed to use caps like from milk jugs? Or literally bottles like a bottle of water? Or can they use plastic lids from something like a peanut butter jar? It said any size was acceptable, but I'm not sure if a jar lid is considered OK or not. Please let me know. Thanks! Holly Re:… Read more

How to measure liquids for an experiment

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

How to measure liquids for an experiment How to measure liquids for an experiment MINIMAL TIME My friend and I are doing the experiment called "Using a Laser to Measure the Speed of Light in Gelatin" and we were wondering how much of each liquid we need per container as we are doing this experiment with many different liquids. We were also wondering if to measure the liquids by the amount such as a cup of each liquid or by the weight Re: How to measure liquids for an… Read more

Question about Write and Read Braille activity

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

Question about Write and Read Braille activity Question about Write and Read Braille activity If I'm poking through the paper on one side, when I flip it over isn't it the opposite pattern? (upper right becomes upper left?) ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/braille]Write and Read Braille[/url] Re: Question about Write and Read Braille activity Yes, that is exactly… Read more

Hydrogel Face Masks

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

Hydrogel Face Masks Hydrogel Face Masks Hi I am working on a research project on hydrogels and wanted to as why was the chamomile tea used in the face mask? Was it required to actually make the hydrogel or was it just added for its hydrating properties? Could I make it without the tea or is it required in the actual preparation of the hydrogel? Thanks! [Adminstrator note:… Read more

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