Beckham's Science Feb. Test

Acid

hypothesis

A characteristic that can only be observed when a substance undergoes a chemical reaction.

A characteristic that describes the color of a substance.

A property that changes only the size of an object.

A property that can be observed without changing the substance's identity.

Flammability

Reactivity with acid

Melting point

Ability to rust

A characteristic observed during a chemical reaction.

A property that changes the composition of a substance.

A property observed without changing the identity of a substance.

A property related to the flammability of a substance.

Reactivity with oxygen

Ability to burn

Density

Reactivity with water

Chemical property

Physical property

Both chemical and physical properties

Neither chemical nor physical properties

Physical properties only

Chemical properties only

Both physical and chemical properties

Neither physical nor chemical properties

A large molecule made of repeating units.

A small molecule that binds to other molecules to form polymers.

A type of natural material.

A chemical property of synthetic materials.

A small molecule that forms natural materials.

A large molecule made of repeating monomer units.

A chemical reaction in natural materials.

A molecule that cannot be synthesized artificially.

By heating them.

By increasing cross-linking between polymer chains.

By adding water molecules.

By reducing the number of monomers.