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Archive for March 2016
Plastik
adalah salah satu bahan yang dapat kita temui di hampir setiap barang. Mulai
dari botol minum, TV, kulkas, pipa pralon, plastik laminating, gigi palsu,
compact disk (CD), kutex (pembersih kuku), mobil, mesin, alat-alat militer
hingga pestisida.
Memang
penggunaan plastik sudah tidak dapat terpisahkan dari kehidupan keseharian
kita, tak terkecuali untuk kemasan makanan. Di Indonesia belum diterapkan
standar penggunaan plastik, masih sebatas himbauan. Berbeda dengan negara maju
lainnya misalnya Jepang, telah diterapkan standar penggunaan plastik dan sanksi
terhadap pelanggaran penggunaan plastik. Saat ini para pedagang masih kurang sadar akan
bahayanya menggunakan plastik pada makanan. Plastik untuk kemasan
bahan makanan seharusnya dibuat berdasarkan Standar Nasional Indonesia (SNI)
sehingga lebih aman pada suhu tertentu dan lemak/minyak. Pada plastik untuk kegunaan lainnya,
misalnya plastik keresek, hindari pemakainnya dari makanan berminyak dan suhu
panas, karena zat-zat adiktif dalam plastik mudah terurai dalam lemak dan
panas, apabila terkontaminasi dengan makanan yang masuk ke dalam tubuh, secara
akumulaitf pada binatang percobaan dapat mengakitbatkan penyakit kanker,
perubahan hormon dan menyebabkan kelahiran berjenis kelamin ganda. Sesungguhnya penggunaan bahan plastik
dalam konsumsi makanan tidak perlu ditakutkan, asalkan kita tahu cara
menggunakannya dengan benar.
Tidak hanya pada makanan, plastik juga menyebabkan lingkungan menjadi tercemar
dan tidak sehat akibat kurangnya kesadaran pengguna plastik yang masih saja
sering membuang sembarang tempat.
Agar kita dapat terhindar dari bahaya plastik, mari
kita ikuti tips berikut ini.
1. Misalnya kita ingin membeli air mineral ataupun
minuman lainnya, kita dapat membawanya dari rumah agar lebih higienis.
2. Perhatikan
tanggal kadaluwarsa makanan, jangan dikonsumsi bila tanggal kadaluwarsa telah
lewat batas, begitu pula bila ada kejanggalan rasa atau aroma serta penampilan
pada makanan (maupun minuman) meskipun batas kadaluwarsa belum terlewati.
Biasanya hal tersebut juga berdampak pada plastik yang digunakan.
3. Memanaskan
kembali makanan yang telah dibeli menggunakan plastik, lalu tempatkan pada wadah
yang lain. Akan tetapi,
tidak semua makanan dapat dipanaskan, hanya makanan tertentu saja.
4. Bila ingin
memilih plastik lemas (fleksibel) untuk penutup makanan pilihlah yang
dilabelnya tertera polietilen.
5. Pada saat disekolah jika kita ingin membeli makanan,
seperti siomay, bakso, ataupun makanan ringan lainnya. Kita bisa meminta
pedagang untuk memberi kita wadah yang lain atau kita dapat membawa wadah dari
rumah.
A long time ago
there was a kingdom called Janggala, king of the Kingdom are named Raden Putra.
Raden
Putra has an empress who was so good and beautiful concubine. However,
the Consort envied the Empress and he planned bad things to the Empress.
"It should be that the empress was me, and I have to find a way to be rid of the Empress". Said concubines.
Concubines have a way to get rid of the Empress by working together with the royal physician. Concubine malingering and immediately called the royal physician. The physician also said that there were poisoned drinks concubine.
"The man was none other than the Empress King himself". Said the physician.
The king was angry when doctors say such a thing and immediately ordered a governor to dispose consort to the forest.
The order was immediately executed. But the grand vizier did not want to kill him because he knows that all of this is a bad intentions concubines.
"Princess do not worry, I will preach to the king if you were already a slave daughter to kill". Said the vice regent.
The grand vizier was finally killed a rabbit to grease the blade so that the King did not suspect her.
When he was a few months, was born a boy who was so handsome and intelligent named Cindelaras. One day when he was playing an Eagles dropped an egg.
Afterwards three weeks, the eggs finally hatched, chicken, growing at a nice and very strong. But there is one oddity on a rooster that is so amazing.
"Kukuruyuuuuk ... lord Cindelaras, His house is in the middle of the jungle, the roof of palm leaves, his father Raden Putra". Said the chicken.
Cindelaras was amazed and showed it to his mother. Cindelaras mother then told him everything. Later he found out his mother's story, Cindelaras determined to come to the palace.
he finally went to the rooster in the company, but on the way there are people who are being pitted chicken
"Hey, if you ever let stir it with my chicken was a chicken. said they
"OK". Thread Cindelaras.
but apparently Cindelaras chicken was so tough and he could defeat all the chickens. And news about the chicken Cindelaras it up to his ear Raden son and he was sent to the king cinderalas
"Servant facing Excellency". said Cindelaras
"This child was so handsome too intelligent, it seems he is not a descendant of the common people". Thought the king.
The King asked for his chicken to fight together rooster belonged to the raden on the condition that if the rooster Cindelaras lose then head Cindelaras must be willing to at decapitation, but if the chicken wins dri then half the wealth of the King will belong Cindelaras.
Both rooster that was fighting, but in a short time turned out to be chicken king lost.
"Okay, I admit defeat. But who are you young man? "Asked the King.
"Kukuruyuuuuk ... lord Cindelaras, his house in the middle of the jungle, the roof of palm leaves, his father Raden Putra". said Sang chicken
"Is that true?". The Raden said.
"Yes Sire, name Cindelaras servant, a slave mother was the Empress king". Cindelaras said.
Then the grand vizier approached and told everything to the king what happened to the empress.
"I will give just punishment to my mistress." The Raden said.
The concubine Raden was throwing it into the forest, thus the Raden apologized for his mistake. Raden Putra finally picked consort to the forest. And when Raden Putra died, Cindelaras be a substitute for the king. He ruled his country wisely too fair.
"It should be that the empress was me, and I have to find a way to be rid of the Empress". Said concubines.
Concubines have a way to get rid of the Empress by working together with the royal physician. Concubine malingering and immediately called the royal physician. The physician also said that there were poisoned drinks concubine.
"The man was none other than the Empress King himself". Said the physician.
The king was angry when doctors say such a thing and immediately ordered a governor to dispose consort to the forest.
The order was immediately executed. But the grand vizier did not want to kill him because he knows that all of this is a bad intentions concubines.
"Princess do not worry, I will preach to the king if you were already a slave daughter to kill". Said the vice regent.
The grand vizier was finally killed a rabbit to grease the blade so that the King did not suspect her.
When he was a few months, was born a boy who was so handsome and intelligent named Cindelaras. One day when he was playing an Eagles dropped an egg.
Afterwards three weeks, the eggs finally hatched, chicken, growing at a nice and very strong. But there is one oddity on a rooster that is so amazing.
"Kukuruyuuuuk ... lord Cindelaras, His house is in the middle of the jungle, the roof of palm leaves, his father Raden Putra". Said the chicken.
Cindelaras was amazed and showed it to his mother. Cindelaras mother then told him everything. Later he found out his mother's story, Cindelaras determined to come to the palace.
he finally went to the rooster in the company, but on the way there are people who are being pitted chicken
"Hey, if you ever let stir it with my chicken was a chicken. said they
"OK". Thread Cindelaras.
but apparently Cindelaras chicken was so tough and he could defeat all the chickens. And news about the chicken Cindelaras it up to his ear Raden son and he was sent to the king cinderalas
"Servant facing Excellency". said Cindelaras
"This child was so handsome too intelligent, it seems he is not a descendant of the common people". Thought the king.
The King asked for his chicken to fight together rooster belonged to the raden on the condition that if the rooster Cindelaras lose then head Cindelaras must be willing to at decapitation, but if the chicken wins dri then half the wealth of the King will belong Cindelaras.
Both rooster that was fighting, but in a short time turned out to be chicken king lost.
"Okay, I admit defeat. But who are you young man? "Asked the King.
"Kukuruyuuuuk ... lord Cindelaras, his house in the middle of the jungle, the roof of palm leaves, his father Raden Putra". said Sang chicken
"Is that true?". The Raden said.
"Yes Sire, name Cindelaras servant, a slave mother was the Empress king". Cindelaras said.
Then the grand vizier approached and told everything to the king what happened to the empress.
"I will give just punishment to my mistress." The Raden said.
The concubine Raden was throwing it into the forest, thus the Raden apologized for his mistake. Raden Putra finally picked consort to the forest. And when Raden Putra died, Cindelaras be a substitute for the king. He ruled his country wisely too fair.
Bola Gula Api
Mungkin
kalian pernah melihat bola api di sekitar kalian maupun di internet dan
televisi. Atau kalian juga pernah mendengar sepak bola api yang tidak kalah
jauh berbeda dengan sepak bola yang pada umumnya, sepak bola api kini telah
marak di Indonesia. Bola yang digunakan ialah batok kelapa yang kering yang
direndam ke minyak tanah hingga menyerap ke pori-pori serat kelapa lalu
dibakar. Akan tetapi eksperimen kali ini, kita tidak akan membuat bola api yang
bisa dimainkan seperti sepak bola api. Kita akan hanya mengetahui cara membuat
bola api dengan bahan-bahan yang ada disekitar kita. Sebelum itu, kita siapkan
alat dan bahan.
-
Penjepit
makanan
-
Korek
api
-
Lilin
-
Wadah
kecil
-
Abu
kertas yang sudah dinakar
-
Dua
bongkah gula batu
Selanjutnya, lakukan langkah-langkah berikut ini.
Pertama, nyalakan lilin dengan menggunakan korek api
Kedua, ambil salah satu bongkahan gula batu, sebut
saja itu gula batu a. Ambil gula batu a tersebut dengan menggunakan penjepit
makanan.
Ketiga, bakarlah gula batu a! Lihat reaksi apa yang
terjadi pada gula batu a.
Keempat, ambil bongkahan gula batu kedua, sebut saja
itu gula batu b. Ambil gula batu b dengan menggunakan penjepit, lalu lumurkan
pada abu kertas yang sudah dibakar hingga merata.
Kelima, setelah dilumuri hingga merata bakarlah gula
batu b dan lihat reaksi yang terjadi.
Pada gula batu a,
reaksi yang akan terjadi ialah gula batu tidak dapat terbakar oleh api hanya
saja terdapat bekas hitam gosong. Pada
gula batu b, reaksi yang terjadi ialah gula batu tersebut terbakar oleh api dan akan terbentuk seperti bola api. Hal
tersebut terjadi karena pada gula batu b, sebelum dibakar telah dilumuri oleh
abu kertas yang sudah dibakar. Abu kertas tersebut bersifat katalisator dalam
proses pembakaran gula batu. Arti dari katalisator itu sendiri ialah zat yang
ditambahkan ke dalam suatu reaksi dengan maksud memperbesar kecepatan reaksi. Sehingga
pada gula batu b dapat terbakar karena telah dilumuri abu kertas.
