In order to be considered an ion, an atom must have a

positive charge.

charge.

negative charge.

neutral charge.

What factors affect the frictional force between objects?

All organisms in Kingdom Animalia are multicellular, meaning their bodies are composed of more than one cell. Which other characteristic is common to organisms in this kingdom? A. All have a backbone. B. All are able to survive in water. C.

The expression "Every action has an equal but opposite reaction" is often used in everyday speech. A local government may pass a law that is unpopular, which is the action, and some citizens later react by trying to get the law repealed.

A piece of magnetic material that retains its magnetic properties after it is removed from a magnetic field.

Why do predator repeatedly avoid prey that is red in color?

A train moves at constant velocity of 50km/h. how far will it move in 0.5h?

Which process best describes part of a scientific investigation? O designing a solution O evaluating the conclusion O evaluating the solution O identifying the conclusion

How many neutrons are in Cesium-130

You are standing outside during the daytime. How can you see a blade of grass? A. Light is produced by your eyes and travels out to the grass. B. Light is produced by the grass and travels straight to your eyes. C.

Are cosmic rays and gamma rays invisible or do they have color?