The speed and direction of a moving object.

• acceleration
• net force
• velocity
• maximum speed

Substances with atoms that are all alike.

• element
• compound
• isotope
• ion

Any living factor in an organism"s environment.

• biotic
• abiotic
• cellular substance
• nature

A substance in which the atoms of two or more elements are combined in a fixed proportion.

• element
• isotope
• compound
• ion

Any nonliving factor in an organism's environment. 

• cellular substance
• abiotic
• biotic
• photosynthesis

Possible explanation for a problem using what is known and what is observe.

• theory
• idea
• observation 
• hypothesis

Tendency of an object to resist any change in motion.

• accleration
• velocity
• inerita
• net force

The measure of the amount of matter in an object 

• Mass
• Weight
• Work
• Kinetic 

A substance that gets dissolved in a solution

• Solute
• Solvent 
• Friction
• Density 

__________ is stored energy. 

• Potential
• Kinetic
• None of the above 
• All of the above