What kind of energy is used for the flexing of an arm muscle1. electrical energy2. gravitational potential energy3. mechanical energy

What is a period in chemistry

Using your Water Cycle Activity graph, look at the pattern of energy increases. What of the following statements describes what occurs when the water molecule's energy increases? 1. The water molecule is usually changing from solid to liquid. 2.

Which sequence lists types of materials in order from least conductive to most conductive? superconductor conductor semiconductor insulator insulator conductor semiconductor superconductor conductor superconductor semiconductor insulator insulator

The muscles of respiration work together, and they serve as a pump that pushes air into and out of your lungs when you breathe. What is included in the muscles of respiration?

The use of ddt as a pesticide is an example of how new technology can have favorable and dangerous long term outcomes

Process that takes place at mid-ocean ridges A. Sea-floor spreading B. Continental drift C. Magnetic reversal D. Magnetic minerals E. Fossils

The molecule contains carbon, hydrogen, and oxygen in uneven rates the molecule must be

Write a paragraph about soil conservation to be read as a public service announcement on radio stations.

Do you believe that dogs have evolved from wolves?

What caused the melting of the Moon's surface around 4 billion years ago to form the highlands? Select all that apply. A. tectonic activity B. radioactive heating C. meteoroid bombardment D. impact with a Mars-sized planetesimal