An ___is usually a homologous structure that is shared by all organisms in a group~science

How could you tell if a sample of matter is an element

Which of the precautions listed below is the most effective action to take in guarding against this hazard

The smllest particle of an element is the

Discuss how resistance affects current in a circuit.

Which are true statements about reactions? Check all that apply. A. In a chemical reaction, the nucleus is breaking apart. B. In a chemical reaction, bonds between atoms break apart. C. In a chemical reaction, electrons are given, taken, or shared.

An atom or a group of atoms possessing a positive or negative electrical charge is called a (n A.) molecule B.) compound C.) element D.) ion

Which is a pure substance?

What two characteristics of objects impact kinetic energy the most? Question 3 options: mass and weight velocity (speed) and distance mass and velocity (speed) mass and distance

A 0.200-kg cube of ice (frozen water) is floating in glycerine. The gylcerine is in a tall cylinder that has inside radius 3.40 cm. The level of the glycerine is well below the top of the cylinder.

Which is an example of chemical change A. mixing of posted colors B. formation of clouds C. sugar dissolving in water D. separating salt from seawater