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Objective:

Investigate three of the states of matter: solid, liquid, and gas.

Materials:

Ice cubes, cup, saucepan, plastic baggie.

Experiment 1: Frozen Water

• Take a few ice cubes (frozen water) from the freezer and place them in a cup.
• Examine the frozen water and determine whether they change their shape when placed in the glass.
• Examine the frozen water and determine whether it is solid, liquid, or gas.

Experiment 2: Melted Water

• Melt the ice cubes at room temperature for a few hours, or instructors can place the ice cubes into a pan and heat them until melted. Pour the water back into the cup.
• Examine the water and determine whether the melted water changes its shape when placed in the glass.
• Examine the water and determine whether it is solid, liquid, or gas.

Experiment 3: Boiled Water

• Instructors pour the water into a pan, and heat the water until it boils.
• Observe the water vapor rising from the pan as the water boils.
• (Don’t do this due to the risk of burns.) If you placed a cup over the vapor, the vapor would fill the whole cup.
• Examine the water vapor and determine whether it is solid, liquid, or gas.