Science Experiments

Question: Is there anything that is none electrical that would block a magnetic field?

I’m doing a small experiment with my son for a science project and we are looking for magnetic resistance in typical household objects. So far we have found nothing. Glass. plastic, paper, water, nonferrous metals, wood, you name it. Of course it depends on the thickness of the material and the strength of the magnet. We are working with small neodymium magnets.

Answer: There exist several nickle-iron (plus some other impurities, like molybdene) alloys that can do that: mu-metal, permalloy, supermalloy, nilomag, sanbold. Mu-metal is often used for shielding of magnetic fields in household appliances.

magnets experiment

Question: science project help! do objects roll an incline at the same speed?

i’m doing a science project and im doing the experiment above ^, but (more specifically would be “how does the diameter of a disk affect its speed down an incline). anyways, i was wondering if anyone had did this science experiment before, or if they knew the:
list of materials
the procedures
and what are the few sample of data table headings. please respond asap, thank you in advance.

Answer: Here is some information that should help you. Best of luck with your project.

Water Flowing Up 24 meters Not Magic, Just Science! Gravity of Life (Part3)

Question: Dangers of nitrogen, carbon dioxide gas?

i was watching cool science experiments that involve liquid nitrogen and solid carbon dioxide.. it makes a cool smokey effect.. however, i was wondering if we play with the carbon dioxide gas (fog from the solid C02), we will breathe in C02 and danger our health..

Answer: The gas part has been covered. How about the Temperature of liquid nitrogen? It is soooo cold you need a special container for it…and gloves. Because if Liquid N2 comes in contact with your skin, it will INSTANTLY freeze it, and this is not your everyday freeze…it will HURT as your tissue & cells freeze beyond the point of repair. Cystalization damage will occur. People who freeze themselves thinking they’ll be able to thaw out in the future are dreaming. We have yet to figure out how to properly thaw an organism frozen to that cold of temperatures without severely damaging body parts. Just be careful of the liquid, probably even more than the gas.

I’ve watched professionals stick their face in N2 gas….its all about the air flow in the room your in…bigger the room and the more turbulent the air flow (windy), the better you’ll be.

Nitrogen is a very heavy gas, more so than CO2…both fall to the floor. It is not a good idea to have small children playing on the ground near the clouds. They are small enough to be enveloped in gas. The motion of the child and air flow will move the gas quick enough not to pose a death threat, but come on, they’re our kids for chrissake!!

Solids Liquids & Gases