Objective: Identify facts about an element or group of elements on the periodic table. Materials: Colored construction paper, tape or glue, scissors and string. Procedure: 1. Cut a 15 cm wide and 40 cm long strip of construction paper to form a tube. 2. Cut 8 strips of construction paper (different colors) 2 cm wide and 30 … Read more
Directions: Put the number of the definition from the list below into the square with the appropriate term. Check your answers by adding the numbers to see if all the sums of all rows, both across and down add up to the same number, the Magic Number. Periods _____ Atomic number _____ Symbol _____ Magic Number _____ … Read more
Name: Purpose: To investigate several properties of seven elements and based on those properties identify each element as metal, nonmetal, or metalloid. Materials: Seven elements, Conductivity tester, Hammer, 1M HCl, Procedure: At each lab table a different element is located. You will perform the same tests and/or observations at each station. You will move at the direction of the … Read more
Adapted from Holt Chemistry: Visualizing Matter, 2000 Problem: Use your knowledge of the periodic table to determine the identity of each of the nine unknown elements in this activity. q The unknown elements are from the following groups in the periodic table. Each group listed below contains at least one unknown. 1 2 11 13 14 17 18 q None of the known elements … Read more
Look at the picture of the candle burning. The wax of a candle burns into ash and smoke. The original materials are changing into something different. Changes that create a new material are called chemical changes. Look at the picture of water boiling and changing into steam. Steam is another form of water. Heating water did not create … Read more
Objective: To be able to use the periodic table to identify and classify elements and to use the periodic table to predict the behavior of elements Procedure: Number the groups. Number the periods Draw a heavy lack line between the metals and nonmetals. Write the name of each of the following groups above the number: Group … Read more
Old Nassau from http://www.chem.leeds.ac.uk/delights/texts/ This experiment continues the theme of `clock’ reactions. The demonstration is known as the `Old Nassau Reaction’, a clock reaction which turns orange and then black (and has therefore also been named the `Halloween Reaction’) [1]. As Alyea describes [1] `the formation of orange HgI2 was discovered accidentally by two Princeton undergraduates … … Read more
You are to make an attractive eye catching brochure on a regular sized 8 ½” x 11” paper. The brochure must be tri-fold or bi-fold and must look like something you would like to read if you just happened to see it laying around. Research the element you were assigned. This brochure must include the … Read more
Names: Purpose: How does density change as you move down a family on the periodic table? Materials: Lead Shot 10-ml graduated cylinder Tin Shot 50-ml graduated cylinder Silicon pieces Balance Carbon Weighing dishes Procedure 1. Determine the mass and volume of each sample. Record in your data table. 2. Calculate the density of each sample. 3. Graph density vs. period number for your samples. … Read more