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WanderingSoul · 01-02-2010 11:25PM

partyatmygaff wrote: »

Hydrogen is less dense than helium, not the other way around. It's just not used anymore in airships as it can easily combust.

Opps. Thanks partyatmygaff!

Luno · 01-02-2010 11:31PM

WanderingSoul wrote: »

"Why is helium used in airships instead of hydrogen?"

It is less dense?

Next Q; What is / Define / Explain;

Density
Chemical Reaction
Fertilisation

The density of a substance is the mass of 1cm3 of it
Chemical reaction is when a substance is changed ?? (want to correct me there?)
Fertilization is the fusion off the male and female gamete which then forms an egg

Luno · 01-02-2010 11:32PM

WanderingSoul wrote: »

Oh yeah, since a lot of these questions are science, what level is everyone doing (higher/ordinary) ?

I'm doing higher but will probably drop down after the pre's

What is the difference between a motor nerve and a sensory nerve?

WanderingSoul · 01-02-2010 11:35PM

Motor Nerve; carries impulses from the CNS to muscles.

Sensory Nerve; carrie impulses from sensory organs to the CNS.

Next Question; What is / Explain / Define;

1. Dispersion
2. Compound
3. Food Chain

I'm doing higher level.

Jackobyte · 01-02-2010 11:38PM

WanderingSoul wrote: »

Oh yeah, since a lot of these questions are science, what level is everyone doing (higher/ordinary) ?

HL

Luno · 01-02-2010 11:40PM

WanderingSoul wrote: »

Motor Nerve; carries impulses from the CNS to muscles.

Sensory Nerve; carrie impulses from sensory organs to the CNS.

Next Question; What is / Explain / Define;

1. Dispersion
2. Compound
3. Food Chain

I'm doing higher level.

Awesome

Dispersion is a method seeds use to disperse their seeds?:pac:
A compund is formed when two or more elements combine together chemically
Food chain is a way to show how organisms are linked by what they eat

State what a catalyst is and give an example

suitcasepink · 01-02-2010 11:40PM

WanderingSoul wrote: »

Oh yeah, since a lot of these questions are science, what level is everyone doing (higher/ordinary) ?

Higher but im seriously considering pass.. But then i'm mucked up coz I need a higher for LC and I'll be doing a bit in collage, so I cant really =/ Well thats if I stick to my for now collage plan :pac:

WanderingSoul · 01-02-2010 11:44PM

M&S* wrote: »

Awesome
Dispersion is a method seeds use to disperse their seeds?:pac:
A compund is formed when two or more elements combine together chemically
Food chain is a way to show how organisms are linked by what they eat

State what a catalyst is and give an example

Yep and a catalyst is a substance which speeds up a chemical reaction but is not used in the reaction itself. Eg; manganese dioxide

Next Q; What is / Explain / Define;

1) Electric Current
2) Covalent Bond
3) Food Web

deise_girl wrote: »

Higher but im seriously considering pass.. But then i'm mucked up coz I need a higher for LC and I'll be doing a bit in collage, so I cant really =/ Well thats if I stick to my for now collage plan :pac:

What is your current college plan?

bluejay14 · 01-02-2010 11:45PM

M&S* wrote: »

Awesome
Dispersion is a method seeds use to disperse their seeds?:pac:
A compund is formed when two or more elements combine together chemically
Food chain is a way to show how organisms are linked by what they eat

State what a catalyst is and give an example

A catalyst alters the rate of a chemical reaction without being used up in the reaction itself e.g. Manganese dioxide

You got there first.

Next Q. Sticking to the science theme:
What are the seven characteristics of living things?

suitcasepink · 01-02-2010 11:46PM

WanderingSoul wrote: »

Yep and a catalyst is a substance which speeds up a chemical reaction but is not used in the reaction itself. Eg; manganese dioxide

Next Q; What is / Explain / Define;

1) Electric Current
2) Covalent Bond
3) Food Web

What is your current college plan?

Covalent bonding is the sharing of electrons between atoms =/ All I can anwser....
Equine Science in UL

WanderingSoul · 01-02-2010 11:48PM

Caroline; I think you told me that before.

WanderingSoul · 01-02-2010 11:50PM

bluejaymraz wrote: »

A catalyst alters the rate of a chemical reaction without being used up in the reaction itself e.g. Manganese dioxide

Next Q. Sticking to the science theme:
What are the seven characteristics of living things?

Growth
Respiration
Response
Reproduction
Nuitrition
Excretion
Movement

WanderingSoul · 01-02-2010 11:50PM

Current Q; What is / Explain / Define;

1) Electric Current
2) Covalent Bond
3) Food Web

bluejay14 · 01-02-2010 11:57PM

WanderingSoul wrote: »

Current Q; What is / Explain / Define;

1) Electric Current
2) Covalent Bond
3) Food Web

1)the flow of electricty???

3)number of food chains interlinked

WanderingSoul · 01-02-2010 11:59PM

And your question, blue?

jumpguy · 02-02-2010 12:02AM

WanderingSoul wrote: »

Current Q; What is / Explain / Define;

1) Electric Current
2) Covalent Bond
3) Food Web

Current = Volts x Resistance. I'm not sure if a definition is needed tbh...
A covalent bond is two atoms sharing pairs of electrons.
A food web is a connected link of animals that eat each other, starting with a producer, moving onto a consumer, etc. Not really sure how you'd define it.

Question (since bluejay didn't ask):
What 3 conditions are nessicary for germination?
How many electrons in the 2nd full outer shell of an atom?
List the chemical equation for the preperation of oxygen.

bluejay14 · 02-02-2010 12:11AM

WanderingSoul wrote: »

And your question, blue?

Meh, I hit a blank.

jumpguy wrote: »

Question (since bluejay didn't ask):
What 3 conditions are nessicary for germination?
How many electrons in the 2nd full outer shell of an atom?
List the chemical equation for the preperation of oxygen.

Oxygen, Moisture, Temperature
8
my brains gone dead this late at night.

Anyway, next:
Define a lever.(that took me ages to think of)

WanderingSoul · 02-02-2010 12:14AM

A lever is a rigid body that can rotate around a fixed point.

Next Q; Define / Explain / What is;

1) Force
2) Distillation
3) Geotropism

bluejay14 · 02-02-2010 12:20AM

WanderingSoul wrote: »

A lever is a rigid body that can rotate around a fixed point.

Next Q; Define / Explain / What is;

1) Force
2) Distillation
3) Geotropism

1.the idea used to describe the cause of motion or change in the motion of a body.
2.the separation of two miscable(?) liquids eg. alcohol and water
3.the growth of a plant in response to gravity

Next Q:
What is an echo?

WanderingSoul · 02-02-2010 12:26AM

The reflection of sound.

Next Q; Explain / Define / What is;

1) Friction
2) Electrolysis
3) Germination

bluejay14 · 02-02-2010 12:35AM

WanderingSoul wrote: »

The reflection of sound.

Next Q; Explain / Define / What is;

1) Friction
2) Electrolysis
3) Germination

What's up with you and these Explain/define/What is questions!!!!!?????

1.a force that opposes the sliding motion of a body when it is in contact with another.
2.the splitting of a compound by passing water through it
3.the growth of a seed(?)

Moving away from science:
What are the stages involved in the training of a knight?

WanderingSoul · 02-02-2010 12:37AM

I think I'll get back to these tomorrow. (I can't think!)

Luno · 02-02-2010 05:28PM

bluejaymraz wrote: »

Moving away from science:
What are the stages involved in the training of a knight?

Page
Squire
Knight

Name three problems associated with urban sprawl

Luno · 02-02-2010 08:44PM

Anyone going to answer that?:D

WanderingSoul · 02-02-2010 08:45PM

I won't be anyway because we haven't covered it in class yet. I could guess or look it up but I couldn't really be bothered!

Luftwaffles · 02-02-2010 08:49PM

Haven't even started Biology yet...

WanderingSoul · 02-02-2010 08:52PM

I like your name.

Luno · 02-02-2010 08:54PM

WanderingSoul wrote: »

I won't be anyway because we haven't covered it in class yet. I could guess or look it up but I couldn't really be bothered!

Oh no worries, I'll just leave it in the air till someone comes along and decides to answer it, anyone want to throw another question up?

Luftwaffles wrote: »

Haven't even started Biology yet...

Serious? Biology is the first thing I ever done in Science,

Luftwaffles · 02-02-2010 10:07PM

M&S* wrote: »

Serious? Biology is the first thing I ever done in Science,

Well, now you know the abysmal standard of teaching my science teacher is capable of...
Kinda frightening knowing I've yet to learn all that...

Luno · 02-02-2010 10:09PM

Luftwaffles wrote: »

Well, now you know the abysmal standard of teaching my science teacher is capable of...
Kinda frightening knowing I've yet to learn all that...

Have you completely finished chemistry and physics?
Oh and don't the lab books need to be corrected a good bit in advance before June?
That's not good with pre's coming up/starting . . .
Why don't you do it yourself? Biology isn't that difficult IMO,

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