Matter Lesson 3 Part 1 Revew

A ___________ is a change in matter that produces a substance that has new and different properties.

• chemical formula

• chemical reaction

• chemical equation

• chemical change

• Iron metal combining with oxygen in the air to form rust is an example of a __________ change.

• chemical

• physical

• absolute

• metallic

Which of the following is NOT evidence of a chemical change?

• change of color

• heat and light being given off

• change of size

• a powdery solid settles out of a liquid

Which of the following is an example of evidence a chemical reaction is occurring?

• ice melting

• a car hood is bent in a crash

• leaves changing color

• folding a piece of paper

Which of the following is an example of evidence a chemical reaction is occurring?

• a gas is given off

• clay is shaped into a bowl

• a ribbon is cut

• crushing a soda can

Which of the following is an example of evidence a chemical reaction is occurring?

• water freezing

• oil and water separate

• a pencil snapping as it is broken into two pieces

• heat and light are given off

• As a result of a chemical change, there is no change in the total ______ of matter involved.

• shape

• size

• color

• mass

The Law of Conservation of _______ is a relation stating that in a chemical reaction, the mass of the products equals the mass of the reactants.

• color

• mass

• volume

• density

1. Compounds are a combination of two or more _________.

• colors

• elements

• liquids

• solids

1. Compounds have their own properties, _________________ the original substances

• same as

• equal to

• different from

• similar to