Physical/Chemical Changes

1

An ice cube melts, then evaporates.

1

Hydrogen and oxygen gas combine to form water.

1

A beaker of salt water is boiled until only the salt is left behind.

1

A piece of paper is torn into several smaller pieces.

1

Gasoline combusts in the engine of a car, releasing carbon dioxide and water vapor.

1

An egg is boiled until it becomes solid.

1

A scoop of sugar is placed in a blender and ground into a fine powder.

1

Wood scraps are placed into a chipper, which turns them into sawdust.

1

A mixture of red and blue marbles is separated and sorted.

1

A plant performs photosynthesis.

1

Baking soda is heated, causing it to decompose into calcium and carbon dioxide.

1

Milk is left sitting out too long, and it sours.

1

A stainless steel pan is heated on the stove.

1

A pellet of sodium metal is cut into two pieces with a knife.

1

A pellet of sodium metal is placed into water, causing an explosion.

1

Sulfuric acid is poured onto a piece of limestone rock, causing bubbling and fizzing.

1

A helium balloon is popped.

1

An ice cube melts, then evaporates.

Hydrogen and oxygen gas combine to form water.

A beaker of salt water is boiled until only the salt is left behind.

A piece of paper is torn into several smaller pieces.

Gasoline combusts in the engine of a car, releasing carbon dioxide and water vapor.

An egg is boiled until it becomes solid.

A scoop of sugar is placed in a blender and ground into a fine powder.

Wood scraps are placed into a chipper, which turns them into sawdust.

A mixture of red and blue marbles is separated and sorted.

A plant performs photosynthesis.

Baking soda is heated, causing it to decompose into calcium and carbon dioxide.

Milk is left sitting out too long, and it sours.

A stainless steel pan is heated on the stove.

A pellet of sodium metal is cut into two pieces with a knife.

A pellet of sodium metal is placed into water, causing an explosion.

Sulfuric acid is poured onto a piece of limestone rock, causing bubbling and fizzing.

A helium balloon is popped.

Electricity is conducted through a long copper wire.