Properties of Elements

Purpose: To observe different properties of metals (copy onto data table sheet)

Procedure: Record all observations in the data table

1.  Rate the malleability of each metal (most bendable = 6 … least bendable = 1)

2.  Test each metal to see if it is attracted to the magnet (record yes or no)

3.  Test each for electrical conductivity by placing is between the wire clamp and the screw on the light fixture

(see sketch on board…………..record yes or no)

4.  Test each for their density by placing in water, record if they are less than or greater than 1 g/cm3

5.  Test for heat conductivity by placing it in the hot water (hold about 2 cm above water, with other end in the water) time how long it takes to feel the warmth reach your grip (record time it takes to feel warmth)

6.  Test heat effects by holding one end with the clamp and carefully placing the other end in the flame (record what happens; melting, color change, burning)

** CAUTION ** DO NOT LOOK DIRECTLY AT THE MAGNESIUM RIBBON WHILE PUTTING IT INTO

THE FLAME……….LIGHT INTENSITY COULD CAUSE EYE DAMAGE.

CONCLUSION: Answer in complete sentences including important words from the question. (see example)

(Write answers in spiral under taped in data table.)

1.  Which elements are denser than water? (Ex: The elements that are denser than water are…)

2.  Which elements conduct electricity?

3.  Why do you think those elements conduct electricity; where are they located on the periodic table?

4.  Based on your observations (see test #6), place the elements into groups with similar properties. After listing the elements in their groups, write a sentence that describes their similar properties.

5.  Why was it important to hold all the samples an equal distance above the hot water?

6.  For each of the elements write a sentence describing products that are made out of them.

Properties of Elements

Purpose:

Data Table:

Element / Malleability / Magnetic / Electric Conductivity / Density / Heat Conductivity / Heat Effects
Iron
Lead
Copper
Magnesium
Aluminum
Zinc

Properties of Elements

Purpose:

Data Table:

Element / Malleability / Magnetic / Electric Conductivity / Density / Heat Conductivity / Heat Effects
Iron
Lead
Copper
Magnesium
Aluminum
Zinc