Deepen your understanding of matter's states, properties, and the effect of heat on changes of state.
Matter has mass and occupies space. Its properties include density, elasticity, and how it responds to heat and pressure.
Why does a gas exert pressure on the walls of its container?
Because gas particles are constantly moving and colliding with the container walls, exerting force
What happens to the volume of a gas when it's compressed at constant temperature?
The volume decreases as the particles are pushed closer together
The melting point is the temperature at which a solid turns to liquid. The boiling point is the temperature at which a liquid turns to gas. Both remain constant during the change of state.
Why does temperature stay constant while ice is melting, even though heat is still being added?
The added heat energy is used to break the bonds between particles (changing state) rather than raising the temperature
What is the boiling point of water at sea level?
100°C
1. What is the melting point of ice?
2. Why does temperature remain constant during boiling?
3. What happens to a gas's volume when compressed?
4. Why does a solid have a fixed shape, unlike a liquid or gas?
5. Define boiling point.