Conservation of Matter and Properties of Matter Study Guide

Front

What is the definition of reflectivity?

Back

Reflectivity refers to the ability of a surface to reflect light, not how an object feels when touched.

Front

Is metal a better conductor of heat and electricity than rubber and wood?

Back

True

Front

What is a physical change?

Back

A physical change is a change that does not create a new substance, such as melting ice or boiling water.

Front

What are examples of chemical changes?

Back

Examples of chemical changes include rusting of iron, combustion of wood, and digestion of food.

Front

Is chalk a reflective substance?

Back

False, chalk is not considered a reflective substance.

Front

What is the law of conservation of matter?

Back

The law of conservation of matter states that matter cannot be created or destroyed in a chemical reaction.

Front

What is a chemical change?

Back

A chemical change is a process where one or more substances are transformed into new substances with different properties.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice.

Front

What happens to the mass of substances during a chemical reaction?

Back

The total mass of substances remains the same before and after a chemical reaction.

Front

What is conductivity?

Back

Conductivity is the ability of a material to conduct heat or electricity.