Physical/Chemical Changes - Jesse De Los Santos | Library

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An ice cube melts, then evaporates.

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1

Hydrogen and oxygen gas combine to form water.

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1

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

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1

A piece of paper is torn into several smaller pieces.

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1

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

C

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1

An egg is boiled until it becomes solid.

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1

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

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1

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

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1

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

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1

A plant performs photosynthesis.

C

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1

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

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1

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

C

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1

A stainless steel pan is heated on the stove.

C

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1

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

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1

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

C

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1

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

C

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1

A helium balloon is popped.

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1

Electricity is conducted through a long copper wire.

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