Activity
Magnetic Fishing

Objectives: At the end of this activity, the student should be able to: 1. define what is a magnet 2. identify what kind of materials are being magnetize 3. site some uses of magnet 4. perform the activity with discipline, collaboration and cooperation
Background:
A magnet is any object that has a magnetic field. It attracts ferrous objects like pieces of iron, steel, nickel and cobalt. In the early days, the Greeks observed that the naturally occurring 'lodestone' attracted iron pieces. From that day onwards began the journey into the discovery of magnets.
These days magnets are made artificially in various shapes and sizes depending on their use. One of the most common magnets - the bar magnet - is a long, rectangular bar of uniform cross-section that attracts pieces of ferrous objects. The magnetic compass needle is also commonly used. The compass needle is a tiny magnet which is free to move horizontally on a pivot. One end of the compass needle points in the North direction and the other end points in the South direction.
The end of a freely pivoted magnet will always point in the North-South direction.
The end that points in the North is called the North Pole of the magnet and the end that points South is called the South Pole of the magnet. It has been proven by experiments that like magnetic poles repel each other whereas unlike poles attract each other. http://www.howmagnetswork.com/

Materials Needed:

* Fishing Poles made with meter stick with hanging magnet * Ziploc/ Plastic Bags filled with about 10-12 items (metal, paper, wood, cloth, etc) * Paper & Pencils, * Manila papers & Markers

Procedure:

Step 1: Fold paper in half lengthwise - one side titled Magnet Will Pick Up, and the other, Magnet Will Not Pick Up.

Step 2: Lay out the items in Ziploc bag, study and have each group predict which ones will be able to be picked up with the magnet, and which ones, won’t. List the materials under the appropriate column

Step 3: With the magnetic fishing pole, the groups try to pick up each item. Write Y after each item that was able to be picked up and N after the ones that weren’t.

Step 4: Each group will select a representative to present their findings on the manila paper for all to see.

My Analysis: 1. What is a magnet? 2. Where have you seen magnets? 3. Do we need magnets? Why? Why not? 4. What are the materials being magnetized?

Magnet Picked Up | Magnet Didn’t Pick Up | | |

5. What do you think is the reason of your answer in no. 4?

EXPECTED RESULT: * Students will develop their science process skills especially classifying skill. * Students will demonstrate cooperative and collaborative values. * Teachers will employ methodologies and strategies that evoke greater student .motivation, learning, and participation in the activity.
ASSESMENT TECHNIQUE: * Observe the groups as they work to identify students who are having conceptual troubles. * Observe the group members who are not participating and not sharing his/her own ideas and knowledge in the activity. * At the end of the activity, give students time for them to present their outputs and correct them if ever they commit errors.