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11754-2015
Matter
Question | Answer |
---|---|
What are the three states of matter? Hint: Ice, Rain, Balloon. | The three states of matter are: Solids, Liquids, Gases. |
What is a solid? Hint Ice | A solid is an ice cube, a ball or a book. It is a fixed shape. |
What is a liquid? Hint it water flows | A liquid has no defined shape. Water runs down the rain. It has no shape. |
What is a gas? Hint: Balloon. | A gas has no defined shape. Air is a gas. |
What is a change of state? | When matter changes form one state to another. ice melts to become water. |
When does matter change states? | Matter changes from one state to another if thermal energy is absorbed or released. |
What are the changes of state for a Solid to Liquid? Hint: Ice to Water | An ice cube warms up and melts into water, then the water evaporates into a gas. |
What is melting? | When a solid changes from a solid to a liquid. |
What is the melting point? | The temperature at which a solid melts. |
What is Freezing? | When a liquid turns into a solid. Water freezes and becomes ice. |
What is Freezing Point? | The temperature at which water freezes into ice. |
What are the changes of state from a liquid to a gas? Hint 1: hot summer day water on the driveway. Hint 2: Hot shower. | Vaporization and condensation. Vaporization: Water heats up a disappears. Vaporization is when matter changes form a liquid to a gas. Condensation: Hot steamy shower. Steam forms into water droplets. |
What is evaporation? | When "vaporization" takes place at the surface of the liquid. Water evaporates off the surface of the driveway on a hot summer day. |
Vaporization that occurs below the surface of the liquid is called? | Boiling. Vaporization that occurs below the surface of the liquid. |
What is condensation? Hint: Ice Water in a glass | Condensation is when gas changes to a liquid. water vapors in the air are cooled down and turn into water. |
What is thermal expansion? | When things heat up they expand. Hot Air in a balloon. Metal of a bridge. The bridge expands. Thermostat |
What is a thermostat? Hint in a house. | A thermostat controls the room temperature by putting on heat or air conditioners. |
What is a bimetallic strip? Hint: bi=2. metallic= metal | A bimetallic strip is a piece made up of 2 forms of metal. |