States of Matter
Has a definite shape.
What is a Solid.
Anything that is moving is considered this.
When a solid gains enough energy, what phase change occurs?
Melting (solid to liquid)
When pressure increases, what happens to the molecules?
They speed up because they are bouncing around in a smaller space.
When you freeze something what is happening to its kinetic energy and particles?
It particles are losing kinetic energy and slowing down.
Takes the shape of the container from the bottom first.
What is a liquid?
When we add heat to a substance what happens to the molecules/particles.
The particles move faster and start expanding.
When a liquid gains enough energy, what phase change occurs?
Boiling (liquid to gas)
When you leave something in a container in a heat what causes the lid to pop off?
The particles expand and take up more space causing the lid to come off.
What is happening when you place an ice cube in your hand?
Fills the entire container.
What is a gas?
When we remove heat from a substance what happens to the molecules/particles.
The molecules lose energy, come closer together and move slower.
When a liquid lose enough energy, what phase change occurs?
Freezing (Liquid to Solid)
True or False: When particles expand, the particles get bigger.
False. Particles always stay the same size. The only thing that expands is the space between the particles.
Ture or false: When a temperature change causes something to expand it is gaining more particles.
False
When a faster molecule hits a slower molecule what happens to the kinetic energy of each particle?
The faster particle slows down, the slow particle speeds up until they are both have the same amount of kinetic energy.
When a gas lose enough energy, what phase change occurs?
Condensation (gas to liquid)
True or False: When particles contract, the particles get smaller.
False. Particles always stay the same size. The only thing that contract is the space between the particles.
the earths core is a solid because everything on top of it causes immense pressure. Although it is hot enough to be a gas, it doesn't have enough space to move around so the pressure keeps it in solid form.
Ture or false: When a temperature change causes something to contract it is losing more particles.
False
When a faster molecule hits a slower molecule what happens to the overall temperature of the substance.
Its temperature lowers.
When something loses energy does it automatically phase change (change states of matter)? Explain.
No, it must reach its freezing point
If there is enough pressure, it can cause something to change states of matter.
True.
When Ms. Garcia is making soup, she places the lid on the container as it boils. Water collects on the top of the lid. Use what you know about particles to explain.
The Soup particles start out as a liquid. As it boils it turns to gas. The gas particles hit the top of the lid but do not have enough space to continue spreading out so they turn back into a liquid.