Oksigen dan Karbon Dioksida

Ujian Air Kapur

Keterlarutan dalam Natrium Hidroksida

Ujian Penunjuk Bikarbonat

Ujian Kertas Litmus

Ujian Kayu Uji Menyala

Ujian Kayu Uji Berbara

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ladybird , Aphid & Ants

What Do Ladybugs Eat: Facts About Ladybugs

Ants defending aphids from ladybeetles

http://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-aphids-and-ants.htm

http://entnemdept.ufl.edu/creatures/beneficial/lady_beetles.htm

http://www.planetnatural.com/ladybugs-pest-control/

http://www.pbase.com/antjes/lady_bug

http://www.bbc.co.uk/programmes/p003xjbk


(In Chinese)

 http://wuming.xuefo.net/nr/10/97318.html

http://amuseum.cdstm.cn/AMuseum/insect/kunchongzatan/jinqin/mayi.html


http://springsun0410.pixnet.net/blog/post/13959763-%E5%85%B1%E6%A6%AE%E5%85%B1%E7%94%9F%E7%9A%84%E6%9C%80%E4%BD%B3%E6%8B%8D%E6%AA%94--%E8%9E%9E%E8%9F%BB%E8%88%87%E8%9A%9C%E8%9F%B2

http://tv.cntv.cn/video/C10343/25336b2fff3c40fca1d1bdbafa776338