The Atom All matter is composed of atoms. The term atom comes from a Greek word that means “cannot be divided.” An atom is the smallest unit that has the properties of an element....
You have learned that an element is a substance that cannot be further simplified. Elements are the simple substances that combine to make all other substances. Some common elements are carbon, aluminum, oxygen, and...
Motion Motion is a change in an object’s position compared to a fixed object. If you ride in a car, your position changes compared to a tree or a telephone pole. Distance is the...
Life Science3.1 Adaptation and Natural Selection3.2 Insect Reproduction and Life Cycles3.3 Plant Adaptations to Environmental Changes3.4 Plant Reproduction and Life Cycles3.5 Animal Characteristics and Classification Life Science3.1 Learned Behavior of Animals3.2 Nervous System3.3 The...
Earth Science 2.1 Weather Forecasting2.2 World Climates2.3 Fossils of Plants and Animals Earth Science 2.1 Introduction to Earth’s Surface2.2 Theory of Plate Tectonics2.3 Relative Ages of Rocks2.4 Fossils2.5 Weathering2.6 Erosion and Deposition by Glaciers2.7...
Table of Contents Life ScienceChapter 1Kingdoms of Life . . . . . . . . . . . . . . . . . . . . . . . . . ....
Grade 5 Life SciencesCHAPTER 1Living Organisms . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Lesson...
Science A Closer Look Grade 6Table of Contents Life Science UNIT A Diversity of LifeCHAPTER 1Classifying Living Things . . . . . . . . . . . . . . . ....
Lesson 2 Classifying Living Things . . . . . . . . . . . . . . . . . . 36 Kingdom – is the largest group into which organisms can...
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