Physical and Chemical Changes

Which is an example of a physical change?

• A. Metal rusting
• B. Silver tarnishing
• C. Water boiling
• D. Paper Burning

Chemical changes result in new substances, but physical changes do not. Which process is an example of a chemical change?

• A.  baking a cake
• B.  heating  a cup of tea
• C.  chopping a tree
• D.  drying clothes in the dryer

When a new substance is formed with different properties than the original substance it is called a_________.

• A. Chemical Change
• B. Physical Change
• C. Freezing
• D. Boiling

Marco tears a piece of notebook paper into smaller pieces, as shown below.
Tearing paper into pieces is an example of what kind of change?  

• A.  a change in mass
• B.  a physical change
• C. a chemical change
• D.  a change in energy

Which process is an example of a physical change?

• A.  Burning
• B. Flattening
• C. Rusting
• D. Decomposing

If the chemical properties of a substance remain unchanged and the appearance or shape of a substance changes it is called a__________.

• A. Chemical Change
• B. Physical Change
• C.  Both a physical and chemical change 
• D.  A.  Neither a physical or chemical change

Which of the following is an example of physical change?

• A. Baking a birthday cake for your mother.
• B. A glass cup falls from the counter and shatters on the ground. 
• C.  Lighting a piece of paper on fire and the paper burns up and leaves ashes. 
• D.  Mixing baking soda and vinegar together, and this causes bubbles and foam.  

There are several differences between chemical and physical changes. Which process is an example of a chemical change?

• A.  steam rising from a boiling pot of soup
• B.  a metal railing rusting in damp weather
• C.  alcohol evaporating from a cotton swab
• D.  a piece of wood shrinking as it dries out

It is the study of matter and how matter changes.

• Biology
• Physics
• Earth and Space
• Chemistry

It is a solid that forms from solution during a chemical reaction.

• Product
• Precipitate
• Reactant
• Matter