Today’s Warm-Up 1. What is the difference between a physical and chemical change? Write your answer in complete sentences. 2. Classify the following as either a physical or chemical change: a. Plants make sugar from carbon dioxide and water b. Water vapor in the air forms frost c. A goldsmith melts a nugget of gold and pulls it into a wire

Foldable Time The three states of matter are: solid, liquid, and gas. The States of Matter The three states of matter are: solid, liquid, and gas. These three states of matter differ in terms of compressibility, structure, shape, and volume Foldable Time

Foldable Compressibility Structure Shape Volume Solid Liquid Gas

Kinetic Molecular Theory of Matter: Based on the idea that particles of matter are always in motion. Theory has 3 basic assumptions (but we are only going to cover the first 2)

Matter is composed of small particles (molecules) Assumption #1 Matter is composed of small particles (molecules)

Assumption #2 The molecules are in constant motion. This motion is different for the three states of matter.

Solid Compressibility: Not compressible Structure: Particles are packed together in fixed position(vibrate in place)

Solid Shape: Definite shape Volume: Definite volume

Liquid Compressibility: more compressible than a solid, but barely compressible Structure: Individual molecules do not stick together(particles SLIDE past each other)

Liquid Shape: Indefinite Shape (takes the shape of its container) Volume: Definite Volume

GAS Compressibility: Highly compressible Structure: Gas particles do not stick together(spread out)

GAS Shape: Indefinite Shape (takes the shape of its container) Volume: Indefinite Volume; gases expand to fill whatever volume is available

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Ticket Out Take out a clean sheet of paper. You will have 30 seconds to answer each question.

1. Draw a circle on your paper 1. Draw a circle on your paper. Label the circle ‘Solid’ Draw the structure of the solid’s particles in your circle Solid

Answer:

2. This state of matter has neither a definite shape nor a definite volume. On your whiteboard write down the name of this state.

Answer: Gas

3.Which two states of matter have a definite volume?

Answer: Solid and Liquid

4. Draw a circle on your paper 4. Draw a circle on your paper. Label the circle ‘Liquid’ Draw the structure of liquid’s particles in your circle Liquid

Answer:

5. In which states of matter do the particles have movement?

Answer: Solid, Liquid, and Gas

Role A state of matter (solid, liquid, gas) Trash Talkin’ RAFT Role A state of matter (solid, liquid, gas) Audience A different state of matter (solid, liquid, gas) Format Trash Talkin’ Letter Topic Properties of state of matter (why is your state great and the other not??)

My Example: Oh hey solid, I heard you have a bone to pick with me. I heard you said I smell like gas. I AM GAS and that smell must be your upper lip! If you think you can keep up with me you’re dead wrong. While you have to stay put because you have a definite shape and volume, I roam freely and fill whatever space and volume I can. You are so stubborn solid. When people try to press you down, you don’t let them. You are incompressible! I go with the flow and am highly compressible. Finally, I hope you enjoy having all your particles packed together the way you do. My particles are free to stretch out. Just quit being so uptight!