I’m doing this homework for science but don’t really understand the assignment. Help Please!




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Water fluoridation – good or bad?




I heard that fluoride is really bad, especially for children. The reason for fluoride is to make stronger teeth. And that the dental professionals don’t have a say against it.

What do you think? Also, if fluoride is needed to maintain strong teeth then what is there that’s causing weak teeth? I grew up in a country where we drank water from streams and rivers and my teeth are strong. There are some in-perfections because brushing was near none.
This is easily one of those "profit over science" propagandas that the people are paying for it. I don’t see companies are hurry up to find another form of tooth strengthen solution. It will slowly surface, just like the tobacco lie.




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How does drinking water help with weightloss?




I am 19 and am a male and when I asked about losing fat in particularly, and a lot of people said for me, drinking a lot of water throughout the day will definitely help.

So I ask, why and how does drinking plenty of water throughout the day (some say 2-4 liters) help with weight loss? What is the science behind it and the basic (in lamense terms) answer behind it?




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how does a water softener work?




I’m just curious as to the science behind a water softener. Thanks in advance for any info.




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this is realllllllllllllllllllllly important!! i need the answer a.s.a.p… its for science fair :(
thanks a bunch!!!




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What is it like when your water ‘breaks’?




Is it a large amount of liquid at once, or is it a slow trickle?
I am just wondering because I am currently doing clinical hours in a hospital an hour away from my ‘home’ hospital. I am packing a bag to change in case my water breaks or I go into labor at my clinical site.
I was wondering if my change of clothes would be enough or if I would need some towels to sit on for the drive to my delivery hospital.
Suggested category – Science and mathematics! LOL




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We have humidified oxygen at the house, my dad thinks we have to boil distilled water for it. He also needs sterile water for his catheder. So do I have to boil the distilled? Obviously, I’m no science major…




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I was reading today about water fluoridation, and its "effects". These include reduced(or, depending on who you ask, increased) aggression.

This interested me- not because I believe it, but because this has a hypothesis(water fluoridation affects you) with a predicted outcome(reduced/increased agression).

The first commandment of science is "Thou shalt test thy beliefs by experiment", and this seems the perfect opportunity.

What you’d need to do is get, say, three groups, relatively large. They’d have to stay at some kind of facility for the test- that is to say, they would only drink water specialy provided. One group would get standard fluorine levels, one would get a high(within safety limits) dose, and one would get pure, filtered water(as a control).

Have them play some specially designed or chosen violent video game- preferably one with a range of more aggressive or less aggressive tactics. A statistical increase in aggression in the fluorine groups would be… interesting.
I imagine you’d have to take measures to prevent the placebo effect(people think the drug will make them more aggressive, so they behave more aggressively).

Also, I imagine something like this taking place over a couple of weeks, so it might be a bit expensive. I know this is a pretty common issue, though, so some kind of confederation, between people who want to prove the effects of fluoridation and people who want to prove it’s harmless, might be able to scrape the money together.




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This is for a science (specifically Chemistry) lab we were doing. Our teacher brought out a beaker with a muddy mix of water and dirt, telling us to try and seperate the dirt from water and produce as much pure water as possible. We have access to all the equipment at school, like the bunsen burners, beakers and such. He instructed us to create an original way to filter out the dirt. We are allowed to bring materials or supplies from home, although he suggested not to bring coffee filters as that isn’t very original… and I have been brainstorming with no conclusions. Any suggestions or cool ideas?




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