Ask an Expert (top 2,000 results)

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

Affect of Fertilizer on Photosynthesis Affect of Fertilizer on Photosynthesis Hi I'm working on my Science Fair project and I am wondering about doing the floating leaf assay experiment. I would like to try and make it an experiment though that relates to water quality. Would something like adding something sulphur or nitrogen based to the water that the disks are floating in make a difference to the rate of photosynthesis or would this have little impact? There is a lot of talk around at the… Read more

Radios and Calculators

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

Radios and Calculators Radios and Calculators I'm doing a soldering project to build an AM/FM radio and in my research the topic of making a metal detector using a radio and calculator came up. I understand the radio's purpose in the metal detector, but what properties of the calculator help make a metal detector work? Re: Radios and Calculators Hi - this forum is for K-12 students doing a science fair project. However, there are other forums online where you can get help with electronics… Read more

Determining Control for Experiment

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

Determining Control for Experiment Determining Control for Experiment Hi! I was thinking about doing the Science Buddies project about whether or not young children can determine between if something is candy or medicine (4-6 year olds.) The science fair judges last year weighed scores heavily on making sure that students had a control in their experiment. In an experiment like this, how would you determine what the control is when it involves human behavior? Thank you! Re: Determining… Read more

Enzyme-Catalyzed Reaction

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

Enzyme-Catalyzed Reaction Enzyme-Catalyzed Reaction Why does the enzyme catalyst bring the coffee filter square down? It goes up because the catalyst broke down the hydrogen peroxide into water and oxygen and the oxygen is less dense than hydrogen peroxide right? Re: Enzyme-Catalyzed Reaction Hi, Is this a question for a science project? The Ask an Expert forums are for questions about science projects or experiments. Please provide more information so that we can best assist you. Thank… Read more

Just testing

Ask an Expert Topic Forum: Careers in Science

Just testing Just testing Hello! Read more

Electrolytes and Multimeter Device - Chemistry

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

Electrolytes and Multimeter Device - Chemistry Electrolytes and Multimeter Device - Chemistry I am doing the "[b]Electrolyte Challenge: Orange Juice Vs. Sports Drink" [/b] Science Experiment. On the Procedure Tab, under Measuring the Conductance, Step #8 it says [i]- Record the current. Again, make sure you record the correct units. Since your multimeter dial is set to 200m, this reading is in milliamps (mA), not microamps (μA).[/i] It says the Multimeter needs to be set to 200m when testing… Read more

can a pure mathematician earn much money like an engineer

Ask an Expert Topic Forum: Careers in Science

can a pure mathematician earn much money like an engineer can a pure mathematician earn much money like an engineer Can a pure mathematician earn much money like an engineer Read more

Ascorbic acid and Massospora cicadina

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

Ascorbic acid and Massospora cicadina Ascorbic acid and Massospora cicadina Hello, I am a high school junior interested in conducting a research project on ascorbic acid's effects on Massospora cicadina and cicadas. I have only done cursory research on this topic, but I want to ensure this is achievable given my limited resources before investigating in greater depth. Is it possible to gain access to cicadas and a fungal pathogen, [i]Massospora cicadina[/i], at an affordable price? How… Read more

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