علم بدون درد: نوجوانان (نوجوانان بدون درد بارون)

Elementary school students who find science mystifying, daunting, and hard to understand will change their minds when they open this book. The authors have transformed fundamental scientific principles into an exciting adventure where they discover how plant and animal life interact within the Earth's ecosystem, how energy is converted into heat and motion, how matter exists in solid, liquid, and gaseous states, how light is reflected and refracted, how magnetism and electricity are related, how the Earth revolves around the Sun, how the Moon revolves around the Earth, how different kinds of rock were formed, and how the Earth's surface has been formed and shaped over a period of many billions of years. The student-friendly text is complemented with instructive line art. Changes for survival The circle of life Depending on each other Energy Matter Light Electricity and magnetism Objects in the sky Rocks and minerals Shaping earth's surface. Teaches children scientific principles in an interesting way - with facts, questions and activities they can do themselves