Question

LINK THE WORDS TO THE UNDERLINE. The 4 most common _____________ are solids, liquids, gases and plasmas. The _______________ are also called the phases of matter. 2. For a given pure substance, the amount of thermal ____________ is what separates the different states of matter. The solid state has the least thermal _______. The liquid state has more thermal __________ than the solid state. The gaseous state has more thermal _____________ than the liquid state. And the plasma state has the highest thermal ________________ of the 4 states of matter. 3. Changing from one state of matter to another is called a _______________. Solids can _______________ to liquids or gasses. Liquids can _______________ to solids or gasses. Gasses can _________________ to liquids or solids. 4. Frost forms from water vapor depositing as ice crystal without first becoming liquid water. This is called __________________. ____________ is also used in industry to put a thin layer of aluminum on mylar for helium balloons and for potato chip bags. 5. Put wet laundry outside on a clothes line in freezing weather and it will dry. The process is called _______________ and a solid phase changes to a gas without first melting into a liquid. Dry ice (frozen CO2) undergoes ______________ and becomes CO2 gas. It skips the liquid state and because we see something that looks like normal ice disappear without making a puddle, we call it dry ice. 6. ________________________ is when a liquid becomes a gas. It can happen slowly at cool temperatures and this is called evaporation. Or it can happen faster at the boiling temperature of the liquid and this is called boiling. 7. In the summer time, I love a glass filled with ice water. But water vapor in the air undergoes ______________ and becomes liquid water on the outside of the glass. Fog and clouds are also formed by ________________ of atmospheric water (water vapor) condensing into liquid water drops. 8. Thermic refers to thermal energy, usually perceived as heat or temperature. Endo refers to “inside.” _________________ means heat is moving INTO a process and is stored in the products of that process. Heating up liquid water is ____________ because heat is being put into the process of raising the water temperature and is stored in the kinetic motion of the water molecules. Melting ice into liquid water is ____________ because heat is being used to break most of the attractive bonds between water molecules so that the molecules are still close to each other, but can slide around each other. 9. Thermic refers to thermal energy, usually perceived as heat or temperature. Exo refers to “outside” like exiting a room to the outside. ____________ means heat moving out of a process. The heat energy comes from energy stored as kinetic motion of the molecules and broken bonds of attraction. When liquid water cools down, heat comes out of the water and goes to the environment around the water. This is ______________. Liquid water undergoing the phase change to become solid water (ice) is _______________. The thermal energy absorbed to “melt” the ice is released as the ice freezes. 10. The ____________________________ theorizes that all matter is made of tiny particles (atoms and molecules) that are in constant motion. The amount of motion is an indication of the temperature. At absolute zero, all kinetic motion stops. THESE ARE THE WORDS Phase change. Deposition, Condensation, Endothermic, Sublimation, Energy. Vaporization , Exothermic , Kinetic Theory of Matter, State(s) of matter.

Answer 1

1. The right answer is State(s) of matter (for both blanks).

In physics, a state of matter is one of the four ordinary forms in which there is a substance in nature: solid, liquid, gaseous, plasma. Different properties of the material differ according to the state: degree of cohesion, density, crystalline structure, index of refraction ... These properties are translated by "behaviors" different described by the laws of the physics: malleability, ductility, viscosity, law of the Perfect gases ...

2. The right answer is Energy (for all the blanks).

Thermal energy is the kinetic energy of microscopic agitation of an object, which is due to a disordered agitation of its molecules and atoms. Thermal energy is a part of the internal energy of a body. Thermal energy transfers between bodies are called thermal transfers and play an essential role in thermodynamics. They reach a balance when the body temperature is equal. Thermal energy is the energy that a substance possesses because of the agitation of its particles (atoms or molecules).

3. The right answer is Phase change (for all blanks).

In thermodynamics, a change of state is a phase transition when a state of matter changes to another state. The three main states of matter are: solid, liquid and gaseous, but there are several other less common states: plasma, supercritical fluid, mesophase.

The change of state of a pure body is caused by a change in its pressure, temperature and / or volume.

4. The right answer is Deposition (for all blanks).

Deposition (or desublimation) is a thermodynamic phenomenon in which a gas changes directly to a solid. Its opposite phenomenon is sublimation.

Thin film deposition refers to all of the techniques that make it possible to deposit a thin film or thin film of material on a previously deposited substrate or layers.

5. The right answer is Sublimation (for all blanks).

For physicists, the term "sublimation" denotes a phenomenon of change of state of matter and, more exactly, the transition from the solid state to the state of gas, without passing through a liquid intermediate. The reverse phase change is called "condensation".

6. The right answer is Vaporization (for all blanks).

The term "vaporization" refers to a physical phenomenon of change of state of the material and, more exactly, the transition from the liquid state to the state of gas. Depending on the conditions under which the vaporization is carried out, it can take different forms.

Spraying is endothermic, that is, it absorbs heat, usually in fairly large quantities.

7. The right answer is Condensation (for all blanks).

The term condensation refers to a physical phenomenon of change of state of matter and more precisely, the transition from the state of gas to a condensed, solid or sometimes liquid state.

In the latter case, however, it is better to speak of liquid condensation or even to use the term liquefaction. We can also talk about solid condensation or crystallization to evoke a transition from the gaseous state to the solid state.

8. The right answer is Endothermic (for all blanks).

In thermodynamics, the term "endothermic reactions" refers to physical or chemical processes that consume heat. Heat is a form of disordered energy. In an endothermic chemical reaction, the energy released by the formation of the chemical bonds in the reaction products is less than the energy required to break the bonds in the reactants.

9. The right answer is Exothermic (for all blanks).

The term "exothermic" means "that gives off heat" and is relative to exotherm. Generally speaking, a phenomenon is called "exothermic" when it is accompanied by a release of energy in the form of heat. An exothermic phenomenon is the opposite of an endothermic phenomenon.

10. The right answer is Kinetic Theory of Matter.

Kinetic theory is a mathematical description that links the observable macroscopic properties of matter to the rapid movement of the enormous number of particles that constitute it.

The three hypotheses of the kinetic theory :

*The structural hypothesis Molecules are assimilated to hard spheres whose diameter is negligible compared to the average distance between them. We will consider these particles as devoid of size.

*The interactive hypothesis limits to the limit, and this is what we have retained, if we consider the molecules as punctual, the possibility of interaction between the particles vanishes.

*The Molecular Chaos Hypothesis The gas is studied in a state of thermodynamic equilibrium which results in the homogeneity of the intensive variables. It follows that the density of the particles is a constant.