Objective
By the end of this lesson, you will understand how adding or removing heat can change the state of matter.
Materials and Prep
- Ice cubes
- Stove or hot plate (with adult supervision)
- Pot or pan
- Water
- Timer
No prior knowledge needed, just be curious and ready to explore!
Activities
- Activity 1: Melting Ice Cubes - Take an ice cube and observe what happens when you leave it out at room temperature.
- Activity 2: Boiling Water - Watch water boil on the stove and observe how it changes from a liquid to a gas.
- Activity 3: Freezing Water - Put a pot of water in the freezer and check on it periodically to see it turn into ice.
Talking Points
- When something gets hot, it can change from a solid to a liquid. You can say, "When we heat up ice, it turns into water."
- When we cool something down, it can change from a liquid to a solid. You can say, "When we freeze water, it turns into ice."
- Water can also change into a gas when it gets really hot. You can say, "When we boil water, it turns into steam."
- Adding heat makes molecules move faster, and removing heat makes them move slower. You can say, "Heat makes things go zoom, and cold makes them slow down."