Science homework :( im stumped

[AzNsUpA-Boi]

does anyone know something thats happens daily that is both chemical and physical change and explain if possible

 

[SpX]

Stuff in your body? I don't know.

 

[AzNsUpA-Boi]

argh
im so screwed

 

[SpX]

Well I'm only in 9th grade so I don't know.

 

[AzNsUpA-Boi]

lol me 2....

 

[SpX]

We don't have to do that stuff...which is cool for me.

 

[AzNsUpA-Boi]

this sux i woulda been at my friends house if it werent for this stupid lab

 

[Darkmatter]

This is Phsyical Science work or just Science? I used to know all of that stuff my freshmen year. But something that changes physically and chemically, wouldn;t water be one of those? Liquid is physical, Water Vapor would be Chemical, would it not?

 

[OMGLOLWTFPWN]

Ice melting is physical and burning a log is chemical.

 

[_Ace]

Treefrog is teh nerd... basically chemical changes are those that change matter composition (for example burning makes something react with oxygen and turn into something totally different) and physical changes dont change matter composition (ice is solid water, it melts and becomes liquid water, and if it gets boiled, its gas water)

 

[psycho_bunny]

id say water vapour aswell! erm how old are you if your in 9th grade?

 

[Darkmatter]

He's most likely 14-15, I'd guess.

 

[Shadow1psc2k]

I'd almost wanna say the water cycle...

 

[OMGLOLWTFPWN]

WTF Ace PUT YOUR SIGNATURE PICTURE BACK!!! That was the coolest picture ever. Anyway Ace is right physical is basically change in state and chemical is a completely new substance.

 

[c9h13no3]

Burn Hydrogen gas in the presence of Oxygen, in a small vessle.

 

[Pains Requiem]

physical changes is change in size, smell, texture and stuff like that.
chemical change is burning, rusting, and bleaching so water vapour is not one- water changing from liquid to gas is a physical change.
a everyday chemical and physical change? is i supposed to be the same objects that can change?

 

[Shadow1psc2k]

yeah, i thought water underwent some kind of chemical change in the cycle, but i guess not...

 

[Pains Requiem]

im taking physical science right now in the 10th grade and this is something we talked about like on monday or tuesday

 

[Shadow1psc2k]

I got it... eating! Food undergoes physical changes as you chew it and break it up, and chemical changes in your stomach... boo-ya!

 

[AzNsUpA-Boi]

nice but i already done... and shadow got the right idea, one thing has to undergo both but i got cookin meat ty guys