When the chicken egg shell become hard? before or after laying?
358563
an ongoing process....\n\nthe hardening begins before laying and continues after laying...\n\nlike a baby's head...
930201
The egg I would say. Actually this simplification doesn't stand up. \nThe answer is neither and both. If you look at fossil records, eggs existed all of the way back and when did a chicken actually become a chicken? \nAsk yourself. Did a chicken become a chicken, when a dinosaur gained feathers or when it lost its teeth and grew a beak? and is that why most amphibians taste like chicken and lay eggs?
870009
A hen can only lay an egg if it has been fertilised. Unfertilised eggs (ova) remain within the egg. Only if the ova are fertilised do they progress further, to enclose the zygote/embryo within a calcified shell (egg) which is then laid.\nTherefore its is impossible for a laid egg to be haploid (n) because such an egg just wouldnt be laid.
58603
when the sperm fertilizes the egg
503224
Okay, you are all on crack!  The egg comes out semi-soft and eventually hardens!
565314
Find yourself a box of the correct dimensions.\n\nWrap your egg in bubble wrap--the kind with the bubbles that are about as big as a quarter.  Wrap it in as much as you can use without going over the weight limit.  The egg should be in the center of the bubble wrap.\n\nThe bubblewrap should prevent the egg from breaking.  The key is to get the egg in the center so it has equal bubblewrap around it.\n\nIf you can find a styrafoam box that is 7cm x 7cm x 7cm, that would be the best as it would easily meet your 400cc requirement and no side longer than 20cm!  Plus, styrafoam will absorb shock!
198394
According to this site: "Sometimes eggs that are laid in open nests are white at first. They then become stained by the mud and rotting vegetation in the nest. Grebes lay white eggs that become stained and cryptically colored over time."  Read the site over, it has everything you ever wanted to know about bird reproduction.
1166167
if they drop them they* break hehe check ya later ♥\n*(if that wasn't clear to you because i'm weird i mean the eggs would break lol)
880683
Soak a raw egg in vinegar overnigt.  The shell on the egg will become rubberized and actually bounce.
91589
Hi there,\n\nDo you mean 'chick'?\n\nIf yes, then here's my answer - \nI think the chick came first, because he egg is 'back' of the chick. (I mean, a chick lays egg with the help of its posterior end)\n\nIf you mean chuck, then I have to say the egg is first because there is no such thing as 'chuck' which lays an egg.\n\nrule wid style n luv@vinny
260469
The egg. In general - eggs of various species- insects, dinosaurs, etc.  had been around LONG before chickens evolved.
751030
As an egg gets older, it produces hydrogen sulfide, a gas. The gas moves to one end of the egg. To see how old an egg is, place it in a pan of water. If it floats, don't use it. If it stays on the bottom but points up, it is getting old, but I still use them. If it stays on the bottom, flat, it is fresh.\n\nYou can tell if an egg is hard-boiled by spinning it. If it spins easily and fast, it is hard boiled!\n\nHope this helps!
813303
Eggs are very strong at their point. Weight the tip to hit at the point.  Bubble wrap the tip.  Think of an extension that is spring loaded with a weight at the end.  The balance of the container just has to protect it from bouncing.
896471
there is an science project that you put a whole uncooked egg in  vinegar and see how long it take for the vinegar to break the eggs shell down and make the shell soft and you just monitor the progress it's very cool cause you would never think that an eggs shell could turn soft you can also to give it more depth by trying other liquids and compare them
320229
At top speed a chicken can lay an egg about once every 26 hours, so she'd manage to do 6 and be about halfway through the seventh.\n\nIn actual practice, though, they are terrible timekeepers.  I have two pet hens and when they are more or less regular I know if I get an egg from one at 2PM then the next day she should be ready by around 4PM, more or less, but you can't count on it.
56117
it depends on if you have a chicken or not..if you do have a chicken already then the egg comes first if you dont have a chicken..then the chicken must come first.
548166
well\nit's the same as follows:\ndid egg come first or a hen?\ni wish u find your answer.