day 10 bell work: – how many states of matter are there?

Day 10

• Bell work:– How many States of Matter are there?

• How many States of Matter are there?• We will focus on three States of Matter in this

class: SOLID, LIQUID & GAS.• Plasma is the 4th State of Matter.• A 5th State of Matter, the Bose-Einstein

condensate, is rare.

Q: What is the term when a liquid changes to a gas at room temperature?

A. boilingB. sublimationC. evaporationD. deposition

SC 8.4.3.c DOK 1

4

A: What is the term when a liquid changes to a gas at room temperature?

A. boiling - Incorrect. Occurs when a substance is heated.

B. sublimation – Incorrect. Is when a solid changes directly to a gas.

C. evaporation– Correct. Is the change from a liquid to a gas at room temperature. No heating is needed

D. deposition– Incorrect. Is the change from a gas to a solid.

SC 8.4.3.c DOK 1

Mathematics Booster

Write the following measurements in scientific notion.

a. 450,000,000b. 0.00000078

Mathematics Booster

Write the following measurements in scientific notion.

a. 450,000,000 km4.5 x 108 km

b. 0.000000787.8 x 10-7 g

Objectives

• I will know the three common states of matter.

• I will be able to describe how energy, particle arrangement, and particle motion vary among the different states of matter.

How can shape and volume be used to classify materials?

Describing the States of Matter

Materials can be classified as solids, liquids, or gases based on whether their shapes and volumes are definite or variable.

SolidsWhat do these four objects have in common: a pencil, a quarter, a book, and a cafeteria tray?

They all have a recognizable shape and they all take up a certain amount of space.

The materials in these objects are all in the solid state.

Solid is the state of matter in which materials have a definite shape and a definite volume.

Describing the States of Matter

Solids

Samples of solid copper have definite volume. Copper atoms are packed close together in an orderly arrangement.

Almost all solids have some type of orderly arrangement of particles at the atomic level.

Describing the States of Matter

LiquidsHow good are you at estimating whether the juice remaining in an almost-empty bottle will fit in a glass?

The shape of the liquid changes as you move it from one container to the other.

Describing the States of Matter

LiquidsA liquid always has the same shape as its container and can be poured from one container to another.

Liquid is the state of matter in which a material has a definite volume but not a definite shape.

Describing the States of Matter

LiquidsAt room temperature, mercury is a liquid. Drops of mercury on a flat, clean surface have a round shape. Mercury in a container has the same shape as its container. The mercury atoms are close together, but their arrangement is more random than the arrangement of atoms in solid copper.

Describing the States of Matter

LiquidsAt room temperature, mercury is a liquid. Drops of mercury on a flat, clean surface have a round shape. Mercury in a container has the same shape as its container. The mercury atoms are close together, but their arrangement is more random than the arrangement of atoms in solid copper.

Describing the States of Matter

Day 11Bell Work Compare and Contrast solids and liquids

How are they alike?• Both have a definite volume

How are they different?• Solids have a definite shape

the atoms are usually have an orderly arrangement.

• Liquids no definite shape atoms are able to move around one another.

Gases

Think of a gas.

Describing the States of Matter

Gases•How many of you came up with Air?•Air is a mixture of gases.•What are some of the other examples?

Describing the States of Matter

Gases

Gas is the state of matter in which a material has neither a definite shape nor a definite volume.

A gas takes the shape and volume of its container.

Describing the States of Matter

GasesThe “shape” of the helium in a balloon is the same as the shape of the balloon itself. The volume of the helium in a balloon is equal to the volume of the balloon.

Describing the States of Matter

GasesThe helium atoms in a balloon are not arranged in a regular pattern. They are at random locations throughout the balloon.

Describing the States of Matter

Other States of MatterAbout ninety-nine percent of all the matter in the universe exists in a state that is not as common on Earth as solids, liquids, and gases.

At extremely high temperatures, such as those found in stars, matter exists as PLASMA.

Describing the States of Matter

Other States of MatterPlasma is an ionized gas, is a cloud of protons, neutrons and electrons where all the electronshave come loose from their respective molecules and atoms, giving the plasma the ability to act as a whole rather than as a bunch of atoms.

On earth, plasma is naturally occurring in flames, lightning and the auroras.

Describing the States of Matter

Other States of MatterAt temperatures near –273°C, groups of atoms behave as though they are a single particle. This fifth state of matter is called a Bose-Einstein condensate (or BEC).

Describing the States of Matter

Kinetic Theory

The kinetic theory of matter says that all particles of matter are in constant motion.

Kinetic energy is the energy an object has due to its motion.