States of Matter Review Quiz

States of Matter Solids, liquids and gases are the three states of matter. All matter is made from small particles. These particles are called atoms and molecules. Freeze your way into solids!

Solids Solids have a definite shape and volume. The particles of a solid are arranged in a tight, regular pattern, and move very little. Particles are so close to one another that they only vibrate. Cannot be compressed and can only be broken Flow into liquids!

Types of Solids Amorphous Crystalline Solids that are made of crystals NOT arranged in a particular pattern DOES NOT melt at specific temperatures. It just becomes softer and changes into other substances. Examples: plastics, rubber, glass Solids that are made of crystals Regular, repeating pattern Melts at a specific temperature Examples: salt, sugar, snow

Brain Break

Freeze your way into solids! Liquids Liquids take on the shape of the container they are in– no definite shape. Liquids have a definite volume Particles of a liquid move freely around one another Fluid: “a substance that flows” Bubble into gases! Freeze your way into solids!

Brain Break Marbles in hand, need pictures of flask and graduated cylinder

Properties of Liquids Surface tension: result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together Bill Nye video, how many drops on a penny, jar with stocking netting

Properties of Liquids Viscosity: a liquid’s resistance to flow HIGH viscosity: flows slowly LOW viscosity: flows quickly

Your turn! Low viscosity High viscosity

Gas Molecules are widely separated, move around freely, and move at high speeds. Gases do not have a definite shape Gases also do not have a definite volume because they can be compressed (squashed into a smaller volume). Flow into liquids!

Question 1 How many states of matter are there? One Two Three

Question 2 Atoms in a liquid are not farther apart than the atoms in a gas. True False Carefully read the question!

Question 3 Which has the least energetic molecules? Solid Liquid Gas

There are three different states of matter: solid, liquid, and gas. CORRECT There are three different states of matter: solid, liquid, and gas.

Correct Again!! Atoms in a gas are actually farther apart than the atoms in a liquid. Gases are the least dense and have atoms that are the most spread out.

Solids have the least energetic molecules. Geeze, you are extremely smart!! Solids have the least energetic molecules.

You are Finished! Good Job!