ALCOS Science (2005) Grade 3

1.) Classify substances as soluble or insoluble.

2.) Identify physical and chemical changes of matter.

3.) Describe ways energy from the sun is used.

4.) Define force and motion.

5.) Identify the relationship of simple machines to compound machines.

Example: pencil sharpener composed of a wheel and axle, inclined plane, and wedge

6.) Identify structures and functions of the muscular and skeletal systems of the human body.

7.) Describe the life cycle of plants, including seed, seed germination, growth, and reproduction.

8.) Identify how organisms are classified in the Animalia and Plantae kingdoms.

9.) Describe how fossils provide evidence of prehistoric plant life.

Example: plant fossils in coal or shale providing evidence of existence of prehistoric ferns

10.) Determine habitat conditions that support plant growth and survival.

Examples: deserts support cacti, wetlands support ferns and mosses

11.) Describe Earth’s layers, including inner and outer cores, mantle, and crust.

12.) Identify conditions that result in specific weather phenomena, including thunderstorms, tornadoes, and hurricanes.

13.) Describe ways to sustain natural resources, including recycling, reusing, conserving, and protecting the environment.

14.) Describe the position of Earth, the moon, and the sun during the course of a day or month.

NASA Skywatch to learn sighting times for major satellites:  NASA Skywatch