Materials You Will Need:

• 2 Energizer_® MAX^® D cell batteries (separate batteries—you won't use your Power Pack for this experiment)
• (2) 5" pieces of number 22 insulated copper bell wire with approximately 1" of insulation stripped off all ends
• Cardboard tube (toilet tissue or paper towel) cut to 4" in length
• PR6, or number 222, 3-volt flashlight bulb
• 2 brass fasteners (brads)
• 1" x 3" cardboard strip
• Paper clip
• Tape
• Bathroom-size paper cup

Please Read Carefully!

All experiments use safe, low-voltage battery power. Household electrical current contains high voltage that could cause serious injury. DO NOT use household electrical current for any of these experiments. ALL experiments should be conducted under adult supervision.

• Carefully follow wiring instructions for each experiment. Improper wiring can result in battery leakage and/or rupture.
• DO NOT take a battery apart. Contact with internal battery material can cause injury.
• DO NOT dispose in fire, recharge, put in backwards, or mix with used or other battery types. This may cause batteries to explode, leak and cause personal injury.

Steps to Make a Flashlight

1. Push brass fasteners through tube. Attach a paper clip. This clip will act as on/off switch.
2. Inside the tube, attach a wire to each fastener. Tape batteries together and insert into tube, (+) to (-).
3. Tape one end of wire securely to bottom of one battery's negative (-) terminal.
4. Pass other wire end through a hole (large enough to insert bulb) in center of cardboard strip. Then twist wire around bulb and insert the bulb into cardboard strip. This strip, when taped to tube, will position bulb for contact to positive (+) terminal.
5. Use a paper cup as a reflector by inserting bulb through a hole punched in bottom of cup. Secure with tape.