Basic Earth And Environmental Science

 The Earth has not always been this way. It has taken a great length of time to produce the features that we now observe. In the distant future the Earth will appear different again because changes are continuously taking place. Scientists agree that the Earth formed from a large cloud of gas and dust. As the gases and dust cooled, the Earth developed, slowly forming a ball-shape with a solid surface. This surface is called the crust.

The solid materials of the crust are called ROCKS. The first rocks resulted from the cooling of molten material. These rocks are called ingenous rocks. Granite is one.

Here is a picture of Granite:

A Taste Of Biology

1. Living Things
Biology is the study of living things. Living things are a group of objects which have many common characteristics. All living things have life, which means they can carry out activities and other things. All living things need oxygen to thrive. Living things include plants, fish and us. Living things move, grow, react and reproduce from energy which they can get from food sources around them.

2.Classification Of Living Things
Living things are usually divided into two groups - plants and animals. The differences between plants and animals can be seen in three main areas - their movement, whether they make their own food, and the structure of their cells.

Movement- The movement of most plants is slow. They are fixed in one place by their roots. Plants have a process called 'photosynthesis', which means that they can take in carbon dioxide and release them into the air as oxygen. Animals have specialised parts such as legs, wings, fins, tails and small hairs which are used just for movement. Some move slowly and some can move rapidly.

Cell Structure- All living things are made of tiny cells. Some living things consist of one single cell, while others, such as humans consist of millions. Plant cells are usually box shaped and contain more liquid.



References: http://en.wikipedia.org/wiki/Biology

How to treat 'ich' also known as the freshwater whitespot disease

Ichthyophthirius Multifiliis, is a common disease of freshwater fish. It can be fatal if not treated.

'Ich' is a parasite that often appears as White spots on the fins and gills of the fish, roughly the size of a pin head. There is a theory that all fish have it and only become infected when stressed, I do not know if this is true. First, set your aquarium degrees up to a higher temperature as this will speed up the life cycle of the parasite, but only do this if your fish tolerate high water temperatures. Chemical treatments include formalin, malachite green, methylene blue, chelated copper, copper sulfate, potassium permanganate and quinine. You can by a treatment from your local pet store. My fish have just been cured of 'ich', but I did lose a few so  be prepared. 

References: http://en.wikipedia.org/wiki/Ichthyophthirius_multifiliis

Sharks, the most feared animals?

The truth is, that sharks are not agressive and that they attack humans mostly by mistake as to thinking they're seals or something that they normally eat. Sharks most of the times just take a bite and they'll leave you alone when realising that you're not something that they usually eat. The mistakes that they do is mostly due to poor eyesight. Then again, sharks make up the poor eyesight with an incredible sense of smell.

Cross+Roads= Danger riddle

This is how you work out the answer to the Cross + Roads = Danger riddle.

CROSS
+ ROADS
----------------
DANGER

Well you can see that the DANGER has one more letter than CROSS and ROADS, and the extra letter is D. That means that C + R equals something more than 10. Which also means D is 1. So now we have this equation...

CROSS
+ ROA1S
---------------
1 ANGER

And this key...

C=?
R=?
O=?
S=?
A=?
D=1
E=?
N=?
G=?

Now look at the equation below (same as one just above)

CROSS

+ ROA1S

---------------

1 ANGER

Oh look, S + S = R. That means that R must be even. We have a choice of 4, 6 and 8, because if R was 2, S would have to be 1, and D is already 1. Let's try 6 for the value of R, because we need high numbers if we want C + R to equal something more than 10. Oh look, if R is 6 and S is R divided by 2, then S must be 3!

Now we have this key...

C=?

R=6

O=?

S=3

A=?

D=1

E= ?

N=?

G=?

And this equation...

C6O33

+ 6OA13

---------------

1 ANGE6

Well it's pretty obvious that 3 + 1 = 4, so now we have E down as 4. And since we now only have 4 spots in the key left, we choose the highest number for C, which is 9. Again, we need high numbers to make C + R equal something more than 10.

Now we have this key...

C=9

R=6

O=?

S=3

A=?

D=1

E= 4

N=?
G=?

And this equation...

96O33

+ 6OA13

---------------

1 ANG46

In the equation, O + A = G. We have 2, 5, 7 and 8 vacant. Let's play around with these letters. Let's see if we can find an equation in there. Yes! There is an equation there. 5 + 2 = 7! So G must equal 7. We know that 9 + 6 = 15, but it's missing the 5! So, A must equal 5. In turn, this leads to O having to be 2 (do the maths, O + 5 = 7). And last of all, O is 2, so 6 + 2 (6 + O) = N But 6 + 2 = 8, so now N is 8. We now have the following equation...

96233
62513
------------
158746

And the following key...

C=9

R=6

O=2

S=3

A=5

D=1

E= 4

N=8

G=7

Congratulations, you have now finished the CROSS + ROADS = DANGER puzzle.

 

This post has been made originally by Jose.

Riddle

What are five things of a sort, that can be found in a tennis court?

Answer in comments.
 

The Magical Number 9

1:  Find more than one multiple of 9 such as 9 and 18. (you have to do it in order for it to work)

2: add them.  18
                       9
                   ____+

                      2  7

3. 27 is your answer. add 2 and 7 to make 9! you can do it with as many multiples of nine as you want and it will still be the same! (remember you have to do it in order!)