#01 Pendulums - Get Materials

Complete Master List for #01 Pendulums:

Key: (1st/2nd/3rd) denote needed quantities: (1st) enough for 1 student doing all activities; (2nd) enough for 30 students working in self-paced pairs; (3rd) enough for 30 students working in pairs on the same lesson. Starred* items may be purchased below.

1/10/10: cereal boxes (two pound Grape Nuts boxes are ideal)
2/20/20: cups gravel (sand or soil)
* 1/5/5: rolls of masking tape
1/10/10: scissors
* 1/2/2: spools thread
* 2/20/20: washers sized to fit quarter-inch bolts
* 1/2/3: boxes of paper clips of uniform size
1/1/1: wall clock with second hand (wrist watches)
1/1/010: stopwatches
1/10/10: hand calculators
* 1/1/1: roll thin, bare iron wire, about 30 or 32 gauge
1/5/10: meter sticks
1/2/5: wire cutters
1/4/10: batteries, size-D, dead or alive
* 1/4/10: clothespins
1/10/10: index cards (any straight edge)
* 1/20/20: straws
* 4/30/40: straight pins
1/10/10: 4 1/2 inch plastic lids from margarine tubs or coffee tins
1/2/5: paper punches
1/1/1: a working video screen
Paper Clips, box of 100
Regular price $1.60
Clothespins - per 10
Regular price $1.15
Straight Pins - approx. 150
Regular price $3.50
Tape - Masking
Regular price $2.40
Thread
Regular price $0.30
Straws - Straight
Regular price $0.95
Washers - Small
Regular price $0.35