Part+II+-+Student+Activities




 * Student Activities **

// Monday //
- Today we will watch sections from the video //Elements of Chemistry: The Periodic Table.// Look for answers to these questions. - What made Mendeleyev’s discovery about the elements so revolutionary? - What is the periodic law?

- Using the set of element cards, find and fill in the following information. - Number of protons, electrons and neutrons - A model of an atom of that element - Number of electron shells in the atom - Number of valence electrons

You may use any reference available in the classroom or the media center, ie encyclopedias, internet, etc.

- Once you have completely filled in the missing information you will arrange the cards according to these rules:

- Cards must be placed in the order of their atomic number. - All cards in the same column must have the same number of valence electrons. - All cards in the same row must have the same number of electron shells.

- Once you have completed the arrangement, allow the other groups to finish and the correct arrangement will be revealed to you.

// Tuesday //
- Once you have been assigned a family from the periodic table, you and your assigned lab partner will pair off and determine the density, boiling point, melting point and conductivity of one element found in your assigned elemental family. You will also need to name two common uses for your element.

- When you are finished you will rejoin the larger group and share what you have learned with them. Discuss the similarities of the different elements within your assigned elemental family.

// Wednesday //
- Taking a sheet of paper, write what you think a polymer is and some examples. You will save these for later in the lesson. - You will be conducting an experiment this tomorrow. Combining a solution of glue and a borax solution, observe the results and explain these results.

- Today we will watch sections from the video //Elements of Chemistry: When Carbon Co////mbines//, look for answers to these questions: - What do you know about the element carbon? - What biological processes involve carbon compounds? - What are some types of hydrocarbons? - What is an alkane? - What elements commonly bond with carbon? - What are halocarbons?

// Thursday //
- Before beginning the experiment, write down any and all predictions you have about the way the two solutions will react when combined. Once you have these predictions set them aside.

Directions for beginning the experiment:
 * Safety Note: ** Unless instructed to do so, do not sniff, taste, touch or mix any of the materials.

- Pour 20 ml of the Elmer’s glue solution into a cup. - Add 10 ml of the borax solution. - Use the stirring stick to mix the two solutions.

- Once you have thoroughly mixed the solution, write down any observations you have and why you think this happened.

- Have one person from your group volunteer to take the new material home. You will either put it in the refrigerator or the freezer for ten (10) minutes. The volunteer will record these results and come to class tomorrow prepared to discuss them.

Friday
- Once class begins those who volunteered to do the refrigerator/freezer experiment will need to be prepared to discuss their findings with the class.

- Once these results have been discussed, we will revisit your thoughts on polymers. We will develop a definition of polymers together as a class.

- Now that you have a better understanding of what a polymer is, think of other examples of polymers.


 * If we run out of time on any given day there is time on other days to finish each part of the lesson.