PLZZZ HELPP IM FAILLING THIS CLASS THIS IS. THE LAST TEST. 1 Most children are familiar with chemical luminescence. If you have ever played with glow sticks then you can remember that bright glow. This is
chemical luminescence. As a child, glow sticks fascinated me. I would bend them all simultaneously to create the brightest glow possible. Afterwards,
would spend what seemed like hours reading under my blanket with these toys. It was always disappointing when the glow ceased.
2 Scientists consider chemical luminescence a cold light because there is little temperature increase. The light emitted is the result of two chemicals
mixed together. As the chemical molecules combine, light is produced. In a glow stick, the two chemicals must remain separate until the consumer
wants to create the glow. To accomplish this, one chemical is sealed inside a thin glass tube. It is inserted into a larger plastic tube that can bend easily
The space between the glass and plastic portions is filled with the second chemical. In this condition, glow sticks can remain stable for several years.
3 Glow sticks are common in amusement parks, novelty stores, and camping supply stores. Most glow sticks only work for a couple of hours. They
contain low amounts of the chemicals needed to maintain a long glow. However, larger glow sticks can maintain their chemical reaction for 12 hours or
more. This makes them perfect for night diving and evening strolls. The science of chemical luminescence even found its way into military use. Military
grade glow sticks have special light emissions that are only visible with infrared rays. From birthday parties to combat missions, glow sticks are
extremely versatile.
Smoke Alarms, by CPSC. gov
Smoke alarms save lives. They can detect a fire early, and alert consumers, giving them valuable time to escape.
Despite that well known fact, about two thirds of fire deaths take place in homes with no smoke alarms or no working smoke alarms, e. g., smoke alarms
with no batteries or dead batteries,
When shopping for smoke alarms, consumers should consider the different types of smoke alarms. Both types are effective smoke sensors. lonization
type detectors respond quickly to flaming fires. Photoelectric type detectors respond sooner to smoldering fires. Because both ionization and
photoelectric smoke alarms are better at detecting distinctly different yet potentially fatal fires, and because homeowners cannot predict what type of
fire might start in a home, CPSC staff recommends consumers install both ionization and photoelectric type smoke alarms in their homes. There are
smoke alarms that combine both detection technologies into one unit called dual sensor smoke alarms.
as that combine bolnice
In addition, consider interconnected smoke alarms. Interconnected smoke alarms allow all smoke alarms in the home to sound if one has detected
smoke, and they may provide improved protection and offer more time to escape a fire.

Luvunc. author3. what time did you __ the alarm for? a. putb. fixc. set4. my father is very. he is never late forwork. a. on time b. punctuality c. punctual5. on my way home, i'llinto the fast foodrestaurant and get us something to eat. a. popb. stepc. jump6. scientists haven't found afor thisdisease yet. a. theoryb. plastic surgery c. cure7. i'm exhausted. i need to take some timework. a. upb. offc. out8. i never read. i find what happenedin the past very boring. a. history b. science fiction c. poetryanybody showed up at michael's party. he was miserable. a. mostlyb. nearlyc. hardly10. i think you should show your teacher moreb. beliefa. respectc. acceptance

Monsters of the deep the ocean is full of mysteries and amazing creatures. since the first sailors left their home shores and set off for adventure, stories have been told of the strange and wondrous beasts encountered on the open ocean. with only glimpses and imagination-enhanced stories to go on, humans have made many an interesting creature into a monster. the truth is, the ocean's scariest creatures inhabit such extreme depths that humans are rarely, if ever, threatened by them. that does not mean they are not the stuff of nightmares. consider, if you will, the following frightful fiends. atlantic hagfish part eel, part sea snake, this sea serpent may have inspired many stories. lacking the scales that most fish have, the hagfish secretes the most amazing slime to protect itself. this slime may be used to suffocate predators. the slime includes small fibers that make it almost impossible to remove. but the hagfish's truly horrific nature lies in what it does to its prey, not its predators. with an excellent sense of smell that compensates for almost total blindness, the hagfish will locate and latch on to a victim. with a circle of razor sharp teeth, the hagfish bores a hole into the side of its now-doomed prey. once the hole is complete, the hagfish just welcomes itself inside for a meal of fish innards. it essentially eats its prey from the inside out. like other deep-sea monsters, however, hagfish are seldom a nuisance to humans. they live most of their lives at depths of up to 5,600 feet. in fact, they prefer a soft sea bottom so they can quickly bury themselves to hide from threats. gulper eel another, more hideous, fiend of the deep is the gulper eel. this creepy critter is part eel and part giant pouch. like a pelican's enormous pouch-shaped mouth, the mouth of the gulper eel can open quite wide to gulp prey. it has a long tail tipped with a glowing organ that is used to lure in prey. in part to its tail, the gulper can reach up to six feet in length. because its tail is so thin, it is not able to pursue prey with any speed, but it can scoop up hundreds of small crustaceans or shrimp in one bite. often swimming through these prey groups with its mouth wide open, its large jaws allow it to feed on squid and other creatures much larger than itself. gulper eels have only been studied because they sometimes get caught in the nets of fishermen. the depths they inhabit make it quite difficult for scientists to study them. they can go as deep as 6,000 feet, well beyond the abilities of humans to pursue them. vampire squid perhaps the most frightening of the deep-sea monsters is also the smallest. the vampire squid reaches lengths of only six inches. it is also one of the most ancient of the deep-sea monsters. scientists believe it to be the last surviving member of its order. to see the vampire squid is to wonder how many kinds of sea creatures have been mashed into this one odd-looking spook. part squid, part octopus, and part fish, the vampire squid has features of all of these. first, it has large fins at the top of its head that look like ears. flapping like dumbo, the squid uses these fins to get around. it also has tentacles and a large bulbous head like an octopus. its arms, however, are connected by webbing that allows it to form a cloak around itself when frightened. like the octopus, it can change its colors, even making its cloak so dark that it appears invisible. remarkably, it has the largest eyes compared to its body size of any creature on earth. despite its mere six-inch length, its eyes are as big as those of a large dog. with its glowing orbs of eyes and its disappearing tricks, it's no wonder it's named after one of the most feared creatures of legends and folklore: the vampire. these creatures make one wonder not just about the odd members of the deep-sea community, but also what mysterious things inhabit the regions never visited by humans. what may be lurking in the deepest, darkest corners of the deep blue seas? one thing we know for certain, much like the outrageous monsters we conjure in our worst nightmares, the deep ocean is an equally imaginative source of shock, awe, and outright fright. what are the key differences between the atlantic hagfish and the gulper eel? use details and quotations from the text to support your answer.

What happened after gandhi’s quit india speech?