Patterns+in+Chemicals+Stephanie+Lim

Steph's Pattern in Chemicals page Definitions: Gases: Boiling Point:** is the highest temperature a chemical can get such as 100 degrees
 * Solids:**
 * Liquids
 * Freezing Point:** is the coldest temperature a chemical can get such as 0 degrees
 * Sublimation:** when something changes from a solid to a gas without turning into a liquid

Pictures of Particles in states of matter, solid, liquid and gas. Particles in Gas Particles in solids- Particles in Liquid


 * Solids-** The particles in solids are touching each other with no gaps as shown in the pictures above. Because the particles are each touching each other, that is why it is stable and able to stand on its own. Also, we can touch it and lift it up as the particles are stuck to each other.
 * Liquids- ** The particles in liquids are not fully touching each other and there are some gaps. This is probably why we can not hold or lift a liquid like a solid as it is not solid.

Changing Matter What is sublimation? Sublimation is when a gas turns into a solid without turning into a liquid, e.g. dry ice Supposing you increased the pressure of air above the boiling liquid. What would happen to the boiling point of the water? The boiling point of the water would have to be higher for the liquid to have enough energy to burst the pressure above. Imagine that you are trying to boil water for a cup of tea up a mountain. Why would the cup of tea be fairly horrible? The cup of tea would be horrible because the flavour from the tea bag wouldn't diffuse as quickly because the water wouldn't be boiling because you are up on a mountain and the heat would escape. Particles also diffuse a lot more quickly in hotter water than cold.
 * Gas- ** The particles in a gas seem to bounce of from walls and are constantly moving. They do not touch one and another so that might be why we cannot hold gas or feel it.

Does water contract or expand on shanging from a liquid to a solid? Liquid contracts when it is changed into a solid because the particles join up together without any spaces but they expand again just before they rearange themselves to take up more space. This is why ice floats on water.