Aim How do Solids Liquids Gases behave at

Aim: How do Solids, Liquids & Gases behave at the molecular level? Do now: What is the definition of kinetic energy?

• Kinetic energy - is the energy which an object possesses due to its motion.

So what do you think the kinetic theory of matter is? • The atoms that makes up all forms of matter (solids, liquids and gases) are always in motion.

All of the atoms that make up matter are in motion! • Every form of matter is in motion, whether it is in a solid liquid or gas form. • Lets now go over how the atoms of each form behave!

Solid matter atoms are set in place, they shake and vibrate next to each other keeping their shape.

In liquid matter the atoms are almost as close to each other as solids, but the molecules can slip over each other to change places.

Gas matter is the most energetic phase of matter, the atoms move freely and far apart as they move.

What forms of matter are transformed when we spray it? • Liquid to Gas. • We know that gas atoms move freely around and spread out farther apart. • I will now spray this air freshener and I want each of you to raise your hands when you smell this fragrance.

What did we observe? • We observed that the gas molecules moved around the room as they spread out freely and father apart.

KINETIC THEORY OF MATTER ACTIVITY • Directions: We are going to act out how atoms move in the three forms of matter as a class. Although, before we do so we need to go over a few rules that must be followed to ensure the safety of the class and everyone in it.

Safety rules • RULE # 1 – No pushing, when we push someone can fall and get hurt. Then we will not be doing fun activities like these again. • Rule # 2 – Keep your hands to yourself. • Rule # 3 – No running in the classroom because someone can get hurt.

ACTING LIKE ATOMS IN THE SOLID PHASE OF MATTER • When I say, everyone will get out of their seats and we will meet in the center of the classroom to behave like a solid phase of matter. Remember * Solid matter atoms are set in place, they shake a vibrate next to each other keeping their shape.

ACTING LIKE ATOMS IN THE LIQUID PHASE OF MATTER • Then when I say “liquid phase”, we will move like the atoms of a liquid. * Remember In liquid matter the atoms are almost as close to each other as solids, but the materials can slip over each other to change places.

ACTING LIKE ATOMS IN GAS PHASE OF MATTER • When I say “gas phase”, we will move like the atoms of a gas. Remember *Gas matter is the most energetic phase of matter, the atoms move freely and far apart as they move.

Top Group Review • 1. What is the kinetic theory of matter, what does it explain to us?

Top Group Review • 2. How do the atoms in a solid form of matter move? Can your group demonstrate to the class?

Top Group Review • 3. How do the atoms in a liquid form of matter move? Can your group demonstrate to the class?

Top Group Review • 4. How do the atoms in a gas form of matter move? Can your group demonstrate to the class?