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Science SC Test (1 Viewer)

ScottyG

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Ok, I cleared some things up today.

The table with a checkbox format is correct, its actually preferable to other formats.

The answer to the fossil question is 'muddy river mouth' - confirmed by the science faculty at my school.

And 'metal' was right, I at first put magneisum and then crossed it out after wasting three minutes debating the meaning of the question. Lucky too.
 

geegables

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whilst marking it during science for multiple choice i only got around 5 wrong, so thats mad..
 

charlottesweb

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superglove_sam said:
fossil fuel conditions:


observations for the experiement: metal was being eaten away, change of colour, gas being emitted

i can't think of anything else i just need to get reminded of them
shouldn't one of the observations been SALT???? Because it was
METAL+acid= salt+hydrogen gas + H20
 

charlottesweb

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The Gravity???

What did evryone put for the SATELLITE quezzo???
and it had the arrows showing the direction of the gravitational pull towards earth
?????
hmmmm
 

romesh

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One of the by-products of the metal-acid reaction could have been salt, but water would not have been produced. Looking at magnesium placed in hydrochloric acid, we get Mg+HCl>H+MgCl (Magnesium Chloride being the salt). However, as there are no oxygen atoms involved, H2O cannot be produced.

I don't think you can "observe" salt being formed because it is dissolved in the liquid- you can't see it or even know its there until you test it or write up the equation. I wrote the metal changes in appearance, bubbles appear and the test tube heats up.

In the satellite question I said gravity was the arrow straight from the satellite to the Earth (perpendicular to the Earth's surface)
 
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i didnt have much/none astronomy in my 2003 paper from what iremember, i got 96% in it :D i loved science
 

superglove_sam

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our science teacher gave us the school certificate '04 for science and we marked it in class.

i got 44/50 in multiple choice, 10/10 in short answers, and lost 2 more marks for diagrams etc. (i remembered what I put in)

the answer for the satelite was R (directly to the earth). the substance was a metal, and you could've used goggles/gas mask for safety precautions.

check for colour change, if the metal got eaten away, and if gas is emitted. you could also check for bubbles being emitted.
 

nadinetannous

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what the

YBK said:
wtf, it took me the whole 1.5 hours to finish it





undefinedundefinedundefined


how the hell did you get 1. 5hours if the whole things an hour and a half? bloody 20 minutes extra!
 

Mumma

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nadinetannous said:
how the hell did you get 1. 5hours if the whole things an hour and a half? bloody 20 minutes extra!

uh your fucking kidding right? 1.5 hours = 1 1/2 hours.
 

YBK

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LOL

1.5 hours = 1 hour and a half of an hour

Care to add them up for me ?

oh yeah, here we go......... 1 hour + 1/2 of an hour = 1 hour and 30 minutes..

DUHH !!!!!!!!!!!!!!!!!!

lol, haha, it was funny though :D
 

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