فایل: شماره شناسایی
pdf برای دانلود کردن این فایل، لطفا وارد سیستم شوید
In this lesson, students will learn about properties and changes of properties in matter, transfer of energy, chemical reactions, geochemical cycles, changes in environments and environmental quality as they witness two methods of producing oxygen and carbon dioxide, two gases vital to life cycles on Earth. Then, they will learn how to test for each of these gases using standard scientific principles.
پیرامون این منبع
به زبانهای زیر موجود است
نوع منبع
ناشر
جواز/مجوز
CC 0 / public domain
