Attraction Action

1
Attraction Action

• By
• Eddie M. Hill

2
Objectives

• 1. Students will be able to recognize that
  strength of a magnet and the distance it is from
  an object will effect its ability to attract or
  repel the object
• 2. Investigate the effect motions and forces have
  on objects (BM9 5th grade )

3
Materials

• 2-4 Ceramic Ring Magnet
• Neodymium magnet
• Clear tape
• Magnetic thinking putty or ooblick
• See recipe for making ooblick

4
Non-Newtonian Fluid

• Ooblick Recipe 1 (Ooze)
• measuring cups and spoon
• 1 cup of dry cornstarch
• large bowl or pan
• food coloring (if you want)
• 1/2 cup of water
• ???
• Put the cornstarch into the bowl. Add a drop
  or two of food coloring. Add water slowly, mixing
  the cornstarch and water until all the powder is
  wet.
• www.exploratorium.edu/science_explore/ooze.html

5
Solid/Liquid

• Ooblick Recipe 2
• Bowl 1
• 1. Place 4 oz (1/2 cup) of white glue
  (Ross/Lepages) in bowl
• 2. Add ½ cup of water and a few drops of food
  coloring
• 3. Mix together in same bowl
• Bowl 2
• 1. Add ¾ -1 teaspoon borax powder to bowl
• 2. Add ½ cup of water and stir until the borax
  is almost dissolved
• 3. Add contents of bowl 1 to bowl 2and squish -
  have fun!
• ???
• 3700sec C Schedule Chemical Sciences -
  Activities
• 1999 Science Alberta Foundation. Please Feel Free
  to Make Use of This Exemplar
• www.uleth.ca/edu/research/ictrd/courses_online/arc
  hive/199/Fall/3700/Sec_C/che...

6
Explore and Observe

• Free exploration with
• ooblick

7
Are you Attracted to me???

• Stick two pieces of tape to the table
• Rub tape against table
• Pull one piece off quickly.
• Predict what will happen when tape is held close
  to ooblick
• Hang tape freely from side of desk
• Bring the tape close to but not touching
  ooblick (use second piece of tape of 1st piece
  touches ooblick)
• Observe and record results

8
Blob Attack

• Place a Neodymium magnet (strong magnet) on the
  table
• Predict what will happen when you place ooblick
  near strong magnet
• Place a glob or ball of ooblick appropriately 2cm
  from magnet
• Observe and record what happens

9
Caught in the Middle

• Place ooblick on table
• Stack two ceramic ring magnet together
• Stand vertically on opposite sides of the ooblick
• Predict what will happen
• Observe and record
• Next, turn one magnet to the opposite use
• Observe and record

10
You are the Magician

• Stand the magnet up vertically
• Make the magnet roll without touching it.
• Barely touch the magnet with the ooblick
• Make the magnet move for an extended period of
  time

11
Pressing Questions

• What properties can be
• associated with the ooblick?
• Based on what you know about magnetism, what
  ingredient is not given in the ooblick recipes?
• How was the clear tape charged?
• What force caused movement by the magnet that was
  at rest ?

12
Further Investigation

• Extend one of the activities time several
  attempts, making a chart and graph
• Design your own experiment using ooblick and
  magnets
• Share your experiment with a friend or the class
• Search the web. Why does ooblick have some
  properties of solids and some of liquids?
• Check out Crazy Aarons Tricks
• www.puttyworld.com/magnets.html