The basic principles of mechanical engineering are the three laws of motion regarding force,acceleration and deceleration,and action and reactions.
Look in the Tree
Ke mana air pergi ketika pasang surut terjadi? Berapa banyak jumlah rata-rata dalam tubuh manusia? Mengapa es mengapung?
Sunlight and moonlight, reflection and rainbows. Vivid ilustration and clear, simple text explore the amazing facts of light. Each book features a glossary, hands on activities, and fascinating fu…
What makes your ears pop in an elevator? What makes hot air balloons float up in the sky? Find out about all the things amazing air can do in tjis fun book.
This photographic Step into Reading Science leveled reader delivers a "you are there Step 2 experience for children who know the alphabet and are eager to begin reading. Sherry Shahan's Feeding …
cats spend a lot of time cleaning their fur.
Kata Dokter Andi, aku gondongan. Gondongan penyakit menular, jadi aku tidak boleh bermain bersama teman-teman sampai aku sembuh. Uuuh... aku bosan! Dilengkapi dengan pesan dokter dan tindakan-tind…
Dari biji tumbuh pohon tinggi Induk tupai dan anaknya sedang asyk bermain di hutan. Tiba-tiba...puk! Anak tupai terkejut. sesuatu mengenai kepalanya. Ternyata benda aneh itu membawa mereka ke da…