Listrik membuat lampu-lampu berpendar cahayabya dan sebuah radio dapat memperdengarkan musik. Tapai, bagaimana sesungguhnya hal terwujud?
Is it an alligator...or a crocodile? A butterfly...or a moth? A donkey...or a mule? They might look alike, but they are not! Find out about these and many more animal mix-ups in this fun-to-read book
Energy at work: what does it do? Can you make sound, heat, light work for you? Find out more by taking a look, right inside this energy book
Buku ini menerangkan macam-macam binatang bawah laut yang sangat jarang dilihat.