Kinetic Theory, Matter, and Its Classification
Name:
Date:
Write on this assignment. Use Chapter 2 in the text and other sections as needed.
1. Using drawings of matter at the molecular level, show the difference between a gaseous element and a gaseous
compound. Identify the substances. Write a short explanation of your drawings. (Look in your text for example of
molecular level drawings.)
Drawing
Explanation
2. Heat is applied to an ice cube. Eventually, only steam is present. Draw a molecular-level representation of this
process. Write a short explanation of your drawings.
Drawing
Explanation
3. Which of the following is true about the state of an individual atom?
a. An individual atom can be a solid.
d. The state of the atom depends on which element it is.
b. An individual atom can be a liquid.
e. An individual atom cannot be a solid, liquid, or gas.
c. An individual atom can be a gas.
4. Using drawings of matter at the molecular level show the difference between an atomic element and a
molecular element.
Drawing
Explanation
5. What makes the boiling of water a physical change?
6. What make the formation of a precipitate (precipitation) a good example of chemical change?
SC1. Students will analyze the nature of matter and its classifications.
b. Identify substances based on chemical and physical properties.
SC6. Students will understand the effects motion of atoms and molecules in chemical and physical processes.
a. Compare and contrast atomic/molecular motion in solids, liquids, gases, and plasmas.
c. Analyzing (both conceptually and quantitatively) flow of energy during change of state (phase).
 You exceeded the standard(s).
 You met the standard(s).
 You did not meet the standard(s).
Kinetic Theory, Matter, and Its Classification
Name:
Date:
7. Air is a solution (homogeneous mixture) consisting mainly of nitrogen and oxygen gases. Using drawings of
matter at the molecular level show the difference between a mixture of nitrogen and oxygen gases and a
compound of nitrogen and oxygen. Write a short explanation of your drawings.
Drawing
Explanation
8. Create molecular-level drawings showing how a heterogeneous mixture differs from a homogeneous mixture.
Write a short explanation of your drawings.
Drawing
Explanation
9. Why don’t we find “heterogeneous compounds” in nature?
10. Use examples to distinguish between a suspension and a colloid.
11. Below is a list of the categories of matter. Into which categories could table salt be placed. Defend you choices.
heterogeneous matter
homogeneous matter
solution
mixture
compound
element
12. Water and sweet tea are both considered mixtures. How can this be?
13. Identify the following as mixtures or pure substances: chocolate milk, sweet tea, drawing paper, stainless steel,
and table sugar.
14. Identify the following as homogeneous or heterogeneous matter: chocolate chip cookies, H2O, air, granite, and
copper.
SC1. Students will analyze the nature of matter and its classifications.
b. Identify substances based on chemical and physical properties.
SC6. Students will understand the effects motion of atoms and molecules in chemical and physical processes.
a. Compare and contrast atomic/molecular motion in solids, liquids, gases, and plasmas.
c. Analyzing (both conceptually and quantitatively) flow of energy during change of state (phase).
 You exceeded the standard(s).
 You met the standard(s).
 You did not meet the standard(s).