1. 
Larry Wall -> “Father of Perl”.
2. 
Rasmus Lerdorf -> “Father of PHP”.
3. 
Dennis MacAlistaire Ritchie -> “Father of C”.
4. 
James Gosling -> “Father of Java”.
5. 
Larry Constantine -> “Inventor of Data Flow Diagram”.
6. 
Michael ‘Monty’ Widenius -> Father of MySQL.
Using eggs for science experiments can be fun and easy. Chicken eggs from the grocery store come in standardized sizes and are fairly inexpensive. Be careful with the eggs as you experiment – if they break as you are working they will make a big mess and you will be at risk because of salmonella. Be sure to wash everything (and yourself) with warm, soapy water. You may also want to use a disinfectant. Ask for adult permission.
For some of these experiments you will need hardboiled eggs. Ask for adult permission or assistance with using the stove. Place the eggs in the bottom of a saucepan. Fill it with enough cold water to cover the eggs. Place the saucepan on a burner over high heat until the water is boiling. Once the water is boiling, set a timer for 10 minutes. After 10 minutes, remove the saucepan from the burner (be sure to turn it off!) and place the pan in the sink. Run cold water over the eggs until they are cool to touch. Put the eggs in the refrigerator. Any extra eggs that you don’t use for experiments can be used for egg salad!
Materials
* 3 raw eggs
* 3 jars with lids (larger than an egg, clean jelly, olive, or pickle jars)
* white vinegar, enough to fill the 3 jars
* measuring tape (vinyl one for sewing is good)
* kitchen scale (optional)
* paper towels
Procedures
You will be pouring vinegar over the eggs in the jars to observe the
changes over the 3 day period.
* How will you find the size of each egg before experimenting? Make a chart for all the measurements you take for the three eggs.
* What other measurements do you need (for the jars, the vinegar?) Add these to your table.
* Think about how you will put the eggs in vinegar for 3 days and what observations you need to record. How often will you check the eggs? Make a chart to record your observations.
* After 72 hours, carefully pour the vinegar off the eggs. Rinse them gently with water and pour off. Keeping track of which egg is which, carefully dry them with paper towel and repeat the measurements you made before the treatment. Save the eggs for the next investigation. Make a chart to record the new measurements.
Thinking About It
Compare the appearance and measurements of the eggs before and after the acid treatment. The egg shell is made of calcium carbonate. Write a sentence describing the reaction of vinegar with calcium carbonate. What other substances contain calcium carbonate?
DIFFUSION AND OSMOSIS IN ANIMAL CELLS
How do different solutions affect an animal cell?
Do substances pass through the cell membrane?
You can make different solutions to test your three egg cells. For instance,
a 10% sugar solution could be made by adding 50 ml of corn syrup to 450 ml
of water. A salt solution can be made by adding table salt to water.
Materials
* 3 eggs from previous investigation
* 3 clean jars with lids (larger than the eggs)
* 3 liquids for testing (such as distilled water, sugar solution, salt solution)
* measuring tape
* kitchen scale (optional)
* paper towels
Procedures
You will be pouring test solutions over the eggs in the jars to observe
changes over 1 to 2 days.
* How will you find the size of each treated egg cell before experimenting? Make a chart for all the measurements you take for the three eggs.
* What other measurements do you need? Think about the solutions and the jars. Add these to your table.
* Think about what observations you need to record as the eggs sit in their “baths.” How often will you check the eggs? Make a chart to record your observations.
* After 24 or 48 hours, carefully pour the liquids off the eggs. Keeping track of which egg is which, carefully dry them with paper towel and repeat the measurements you made before the treatment. Make a chart to record the new measurements. You may wish to take a photograph of your eggs.
Thinking About It
Compare the apearance and measurements of the eggs before and after the liquid treatment. Try to explain each solution’s effect on the egg.
Was water passing into or out of the egg?
Are there other possibilities?
Look up the definitions of OSMOSIS and DIFFUSION.
How are these seen in your experiment?
How could you design an experiment to test different sugar solutions?
THE SUCCESS OF MARRIAGE
Once upon a time a married couple celebrated their 25th marriage anniversary.
They had become famous in the city for not having a single conflict in their period of 25 years.
Local newspaper editors had gathered at the occasion to find out the secret of their well known “happy going marriage”.
Editor: ” Sir. It’s amazingly unbelievable. How did you make this possible? “
Husband recalling his old honeymoon days said:
” We had been to Shimla for honeymoon after marriage.
Having selected the horse riding finally, we both started the ride on different horses.
My horse was pretty okay but the horse on which my wife was riding seemed to be a crazy one.
On the way ahead, that horse jumped suddenly, making my wife topple over.
Recovering her position from the ground, she patted the horse’s back and said “This is your first time”.
She again climbed the horse and continued with the ride. After a while, it happened again.
This time she again kept calm and said “This is your second time” and continued.
When the horse dropped her third time, she silently took out the revolver from the purse and shot the horse dead !!
I shouted at my wife: “What did you do you psycho. You killed the poor animal. Are you crazy?” ..
She gave a silent look and said: “This is your first time!!!”.”
Husband: “That’s it. We are happy ever after. “
1.A fish which is not a fish…………………………
2.A cucumber which is not a cucumber…………………….
3.A mouse which is not a mouse……………………….
4.A fan which is not a fan…………………………….
5.A hare which is not a hare……………………………
6.A lemon which is not a lemon……………………….
7.A pen which is not a pen………………………..
8.A horse which is not a horse………………………….
9.A cow which is not a cow……………………………..
10.A puppy which is not a puppy………………………..
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Answers for science quiz (fun with animals)
1.Lepisma(silver fish)
2.Cucumaria(sea Cucumber)
3.Aphrodite(sea Mouse)4.Gorgonia(seaFan) 5.Aplysia(Sea hare)
6.Doris(sea lemon)
7.Pennatula(sea pen)
8.Hippocampus(Sea horse)
9.Dugong(sea cow)
10.Necturus(Mud Puppy)
2. Overeating
It causes hardening of the brain arteries, leading to a decrease in mental power.
3. Smoking
It causes multiple brain shrinkage and may lead to Alzheimer disease.
4. High Sugar consumption
Too much sugar will interrupt the absorption of proteins and nutrients causing malnutrition and may interfere with brain development.
5. Air Pollution
The brain is the largest oxygen consumer in our body. Inhaling polluted air decreases the supply of oxygen to the brain, bringing about a decrease in brain efficiency.
6. Sleep Deprivation
Sleep allows our brain to rest. Long term deprivation from sleep will accelerate the death of brain cells.
7. Head covered while sleeping
Sleeping with the head covered increases the concentration of carbon dioxide and decrease concentration of oxygen that may lead to brain damaging effects.
8. Working your brain during illness
Working hard or studying with sickness may lead to a decrease in effectiveness of the brain as well as damage the brain.
9. Lacking in stimulating thoughts
Thinking is the best way to train our brain, lacking in brain stimulation thoughts may cause brain shrinkage.
