7th Grade Science Semester Review

Forces are push or ______ interactions between two objects.

Changes in motion, b_________ and stability, and transfers of energy are all facilitated by forces on matter.

Forces, including electric, magnetic, and gravitational forces, can act on objects that are not in contact with each other.

Scientists use data from many sources to examine the cause and effect relationships determined by different forces.

Earth's processes are dynamic and interactive, and are the result of energy flowing and matter cycling within and among Earth's systems.

Energy from the sun and Earth's internal heat are the main sources driving these processes.

Plate tectonics is a unifying theory that explains crustal movements of Earth's surface, how and where different rocks form, the occurrence of earthquakes and volcanoes, and the distribution of fossil plants and animals.

Living things are made of smaller structures, which function to meet the needs of survival. The basic structural unit of all living things is the cell.