era sains, teknologi & inovasi - Portal Rasmi Akademi Sains Malaysia

More documents

Recommendations

Info

32 Oktober 2012 Fun in Science Contributed by Louisville Science Center Shrinky Dinks 1. Objective 2. What You Need 3. To Do and Observe 1 Objective Participants will explore polymers as they create a craft by heating and shrinking recyclable plastic. 2 What You Need ● ● ● ● ● Solid polystyrene (general purpose recyclable Plastic #6) Tops of food containers work very well Toaster oven Markers (Dry Erase or Permanent) Sandpaper 3 To Do and Observe 4. What’s Going On 5. Parent/Teacher Tips 6. Cool Links Plastic is composed of polymers in the form of a carbon chain. A polymer is a chemical compound or mixture of components formed by polymerization (a chemical reaction in which two or more small molecules combine to form larger molecules) and consisting essentially of repeating structural units. Polystyrene is an extremely versatile polymer. The polymer molecules are bonded together on a long chain. Heat excites them causing them to move around and come closer together, becoming more dense. This molecular activity causes the plastic to shrink. ● ● ● ● ● ● Hole punch Spatula Tongs Oven mitt Ribbon (optional) Scissors 1. Preheat toaster oven to 350 degrees. 2. Sandpaper one side of the plastic completely so that it can be drawn on. In its initial state, the plastic is too smooth, so the sandpaper creates a rough surface. 3. Sand any sharp edges of the plastic to avoid injury. 4. Draw any design on the rough surface using the markers. The more colour you use and the larger the design, the more vibrant the final product will be. Use hole punch to make a hole in the plastic, at the top of the design. 5. Place the plastic on the metal tray in the oven and watch it SHRINK! It will start to melt and curl up, but eventually unfold itself into its initial form after it has finished shrinking. Total shrink time is approximately 3.5 minutes. 6. Remove the plastic from the oven The plastic will be very hot so please use caution when handling. The use of an oven mitt is recommended. Place plastic on a dry hard surface and flatten it out with the spatula. 7. After it has cooled down, pull the ribbon through the hole and tie. 4 What’s Going On 5 Parent / Teacher Tips Plastic can be cut into any shape children wish the shape will be retained after shrinking. Finished product will be approximately 1/3 the size of the original piece of plastic. Children can measure the dimensions of their designs before and after shrinking and can determine what percentage of shrinkage it experienced.
33 Oktober 2012 FAJAR BIN HUSIN Alamat: 237 (F), Palong 2. 73450 Gemas, Negeri Sembilan. Umur: 29 tahun. Bidang sains yang diminati: Sains Angkasa dan Fizik. G. SHARMILA A/P GURUSAMY Alamat: No. 1261, Jalan Emas 3, Taman Bandar Baru, 31900 Kampar, Perak. Sekolah: Sek. Men. Sentosa, Kampar, Perak. Umur: 14 tahun. Emel: dannyban@ gmail.com Bidang sains yang diminati: Sains Komputer dan Perubatan. YUGA DARSHAN A/L ELUMALAI Alamat: 35, Lintang Kota Permai 9, Taman Kota Permai, 14000 Bukit Mertajam. Sekolah: SRJK (T) Bukit Mertajam, Pulau Pinang. Umur: 12 tahun. Emel: elumalaik@ yahoo.com Bidang sains yang diminati: Sains dan Teknikal. NUR AIN NAZIRA AZHAR Alamat: A1-11-10, Lorong Pandan Pertama 2, Pandan Utama, 68000 Ampang, Selangor. Sekolah: SK Taman Nirwana Ampang. Umur: 9 tahun. Emel: ainnazira2003@ gmail.com Bidang sains yang diminati: Astronomi dan Reka Cipta. MUHAMMAD FIRDAUS B. ZULKIFLI Alamat: No. 8, Jalan Saujana 1/10, Desa Saujana, Sg Merab, 43000 Kajang, Selangor. Sekolah: Sek. Men. Tinggi, Kajang, Selangor. Umur: 14 tahun. Bidang sains yang di minati: Sains Matematik dan Reka Cipta. WAN NUR KARMILA BT HAMDIN Alamat: No.23, Lorong 2, RPA Kangar 4, 01000 Kangar, Perlis. Sekolah: SMK Derma, Kangar, Perlis. Umur: 13 tahun. Emel: carmelia_naught ygirl@yahoo.com Bidang sains yang di minati: Astronomi, Sains Teknologi dan Sains Seni Bina. MUHAMMAD KHAIRUL IMRAN BIN ZAINAL BADRI Alamat: No. 67, Lorong 4, Taman Sri Kota, 34000 Taiping, Perak. Sekolah: SK Taiping, Perak. Umur: 11 tahun. Emel: imran3794@ hotmail.com Bidang sains yang diminati: Sains Islam dan Sains Perubatan. NUR SHAHIIDA MOHD KHARI Alamat: No. 80, Lorong 16, Taman Balok Maju, 26100 Kuantan, Pahang. Sekolah: SK Balok, Kuantan, Pahang. Umur: 8 tahun. Bidang sains yang diminati: Sains Komputer. MOHD AMIRUL MOHD SYAFIQ Alamat: 12/442, Kampung Baru Kabong, 94650 Kabong, Sarawak. Sekolah: Sekolah Menengah Dato’ Abdul Razak, Seremban, Negeri Sembilan Umur: 15 tahun. Bidang sains yang di minati: Kimia, Fizik, Biologi dan Bidang Perubatan. SITI NUR AMALINA MOHD HALIDI Alamat: 122, Lorong Nangka 1, Taman Retnna, Jalan Manggis, 36000 Teluk Intan, Perak. Sekolah: Maktab Rendah Sains MARA, Kulim, Kedah. Umur: 15 tahun. Emel: imgrukufu@ yahoo.com Bidang sains yang di minati: Kimia dan Kejuruteraan. BORANG PENYERTAAN Lekatkan gambar anda di sini. Nama: Alamat: Sekolah: Umur: E-mel: Tarikh: Bidang sains yang diminati: Alamatkan borang anda kepada: Akademi Sains Malaysia (ASM), 902-4, Jalan Tun Ismail, 50480 Kuala Lumpur. Anda juga boleh e-melkan penyertaan anda kepada: estidotmy@akademisains.gov.my
Page 1 and 2: ERA SAINS, TEKNOLOGI & INOVASI Keme
Page 3 and 4: Dari Meja MOSTI Ministry of Science
Page 5 and 6: 5 Oktober 2012 TRANSFORMASI dalam i
Page 7 and 8: 7 Oktober 2012 Antara unsur-unsur y
Page 9 and 10: 9 Oktober 2012 then need to make th
Page 11 and 12: 11 Oktober 2012 do in cultivating p
Page 13 and 14: 13 Oktober 2012 Pertandingan mereka
Page 15 and 16: 15 Oktober 2012 My Car My Home? CAR
Page 17 and 18: 17 Oktober 2012 Biodata NAMA: Prof
Page 19 and 20: 19 Oktober 2012 18-23 NOVEMBER Kem
Page 21 and 22: Kerjaya 21 Oktober 2012 Jurutera Ba
Page 23 and 24: 23 Oktober 2012 Apa itu Cahaya Lase
Page 25 and 26: 25 Oktober 2012 Inovasi Industri Ge
Page 27 and 28: 27 Oktober 2012 Bagaimana Pendingin
Page 29 and 30: Bicara IT 29 Oktober 2012 Islam dan
Page 31: Peristiwa 31 Oktober 2012 Anugerah
Page 35 and 36: Poster 35 Oktober 2012 Charles Good

era sains, teknologi & inovasi - Portal Rasmi Akademi Sains Malaysia

Create successful ePaper yourself

Delete template?

Save as template?