16

Submitted by:

Carmela S. Manuel

HUB22

1

2

Table of Contents All about Glue

What is Milk

Facts

How to make Glue From Milk

How did it Happen?

Acids an Bases

15

11. Cr + O2 → Cr2O3

12. NaClO3 → NaCl + O2

13. AlBr3 + Cl2 → AlCl3 + Br2

14. Na + H2O → NaOH + H2

15. AlI3 + HgCl2 → AlCl3 + HgI2

16. Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O

17. AgNO3 + K3PO4 → Ag3PO4 + KNO3

18. C3H8 + O2 → CO2 + H2O

19. C2H2 + O2 → CO2 + H2O

20. C6H6 + O2 → CO2 + H2O

14

1. H2 + O2 → H2O

2. H2 + N2 → NH3

3. Al2O3 → Al + O2

4. KClO3 → KCl + O2

5. S8 + O2 → SO2

6. C2H6 + O2 → CO2 + H2O

7. Al2(SO4)3 + Ca(OH)2 → Al(OH)3 + CaSO4

8. P4 + O2 → P2O5

9. Ag + S8 → Ag2S

10. Al + Br2 → AlBr3

3

Glues are part of a larger family called adhesives. The two clas-

ses are distinguished by the fact that glue comes from organic com-

pounds while adhesives are chemical-based. Adhering materials called

epoxies, caulks, or sealants are also chemical compounds that have spe-

cial additives to give them properties suitable for particular jobs or ap-

plications.

Glue came into being when ancient tribes discovered that the

bones, hides, skin, sinew, and other connective tissues from animals

could be processed to remove collagen, the protein in these tissues. The

collagen was sticky and was useful for holding things together. Milk sol-

ids, known as casein, and blood albumin can also be used as a basis for

glue. Dried serum from cows' blood yields albumin that coagulates

(clumps together) when it is heated and becomes insoluble in water.

4 13

Fun Facts about Glue 1: Super Glue bonds instantly, but remains tacky until it actually

makes the connection between two substrates/surfaces.

2: Super Glue can be removed with acetone (fingernail polish remover).

3: Several drops of super glue will hold a two ton truck in the air.

4. Super Glue lasts longest when stored upright in dry, cool conditions

like a refrigerator.

5. Super Glue has amazing tensile strength.

6. Super Glue is listed as one of the top inventions of the 20th century.

7. Super Glue tubes and bottles work best after opening when caps are

cleaned off with acetone prior to resealing.

8. Super Glue was initially discovered in 1942 in a search for materials to

make gunsights for the war.

9. Super Glue’s maximum strength can be achieved when bonding metal

to metal.

10. The Original Super Glue(R) logoa comes from an actual radio show

contest that proved super glue was strong enough to hold a hanging car.

12 5

Milk is an opaque white fluid rich in fat and protein, secreted by

female mammals for the nourishment of their young. Milk’s composition

differs depending on type of mammal, or where and when the milk was

produced. However the main composition of milk is carbohydrate

(Lactose), fat, protein, vitamins and minerals, enzymes.

S

Before, people gets milk from animals. But, due to moderniza-

tion, the production of dried or powdered milk made it easier.Powdered

milk or dried milk is a manufactured dairy product made by evaporat-

ing milk to dryness. One purpose of drying milk is to preserve it; milk

powder has a far longer shelf life than liquid milk and does not need to

be refrigerated, due to its low moisture content. Another purpose is to

reduce its bulk for economy of transportation. Powdered milk and dairy

products include such items as dry whole milk, nonfat dry milk, dry but-

termilk, dry whey products and dry dairy blends.

6

20 Little Known Facts about the Human Body

11

Acid: A solution that has an excess of H+ ions. It comes

from the Latin word acidus, which means "sharp" or "sour".

Base: A solution that has an excess of OH- ions. Another

word for base is alkali.

Aqueous: A solution that is mainly water. Think about the

word aquarium. AQUA means water.

Strong Acid: An acid that has a very low pH (0-4).

Strong Base: A base that has a very high pH (10-14).

Weak Acid: An acid that only partially ionizes in

an aqueous solution. This means that not every molecule

breaks apart. Weak acids usually have a pH close to 7 (3-

6).

Weak Base: A base that only partially ionizes in an aqueous

solution. This means that not every molecule breaks apart.

Weak bases usually have a pH close to 7 (8-10).

Neutral: A solution that has a pH of 7. It is neither acidic

nor basic.

10

When a Milk is added with an acid, it will form

a curd and whey. this is because of the casein that

binds the milk. The acid or the vinegar destroy the

casein to separate the curd from the whey. Next is

the curds will be filtered and applied with baking

soda or our base. This makes the curds to be slimy

and to be more viscous.

This is the reason why glues does have a stink

smell!

7

1. A human being loses an average of 40 to 100 strands of hair a day.

2. A cough releases an explosive charge of air that moves at speeds up to 60 mph.

3. Every time you lick a stamp, you're consuming 1/10 of a calorie.

4. A fetus acquires fingerprints at the age of three months.

5. A sneeze can exceed the speed of 100 mph.

6. Every person has a unique tongue print.

7. According to German researchers, the risk of heart attack is higher on Monday than any other day

of the week.

8. After spending hours working at a computer display, look at a blank piece of white paper. It will

probably appear pink.

9. An average human drinks about 16,000 gallons of water in a lifetime.

10. A fingernail or toenail takes about 6 months to grow from base to tip.

11. An average human scalp Shas 100,000 hairs.

12. It takes 17 muscles to smile and 43 to frown.

13. Babies are born with 300 bones, but by adulthood we have only 206 in our bodies.

14. Beards are the fastest growing hairs on the human body. If the average man never trimmed his

beard, it would grow to nearly 30 feet long in his lifetime.

15. By age sixty, most people have lost half of their taste buds. By the time you turn 70, your heart will

have beat some two-and-a-half billion times (figuring on an average of 70 beats per minute.)

16. Each square inch of human skin consists of twenty feet of blood vessels.

17. Every human spent about half an hour as a single cell.

18. Every person has a unique tongue print. Every square inch of the human body has an average of 32

million bacteria on it.

19. Fingernails grow faster than toenails.

20. Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of

age, an average person will have lost 105 pounds of skin.

20 Little Known Facts about the Human Body

8

1. Mix ¼ cup hot tap water with 2 tablespoon milk

2. Add the vinegar and stir until it curds

3. Place the strainer over the jar (preferably resting on it), and pour the

mixture through the strainer.

4. Use the spoon to press the clumps through the strainer, and release

the liquid.

5. Remove the material from the strainer, and place it back in the pan on

the stove.

6. Add 100 ml (½ cup) water and a tablespoon of baking soda to the liquid.

7. A casein material will begin to bubble. When this stops, use the lefto-

ver liquid as glue.

8. Finished.

How to make Glue from Milk

Procedure

Reagents Powdered Milk Water

Vinegar

Baking soda

9