By: Mindi Cupp & Elizabeth Cable Melody Thomas, Instructor
Magnetism Content learning goals: •Magnets interact with different materials differently. •Magnets stick to some but not all metals. •Magnets have two ends… …a North & South pole. •Magnets can be constructed out of iron nails. •Constructed magnets can be demagnetized.
Initial Ideas by the students:
Arkansas State Standards Strand 3: Physical Science
Standard 7: Energy and Transfer of Energy Students shall demonstrate and apply knowledge of energy and transfer of energy using appropriate safety procedures, equipment, and technology.
3rd Grade-Magnetism PS.7.3.4 Differentiate between magnets and non-magnets .
PS.7.3.5 Describe the effect of distance on attraction and repulsion. PS.7.3.6
Construct a magnet by the “Touch/Stroke” method.
Missouri State Standards Topic: Electricity and Magnetism Science Standard 10. Understands forces and motion Level II [Grade 3-5] Benchmark 1.
Know that magnets attract and repel each other and attract certain kinds of other material (e.g., iron, steel) Knowledge/skill statements 1. Knows that magnets can attract other magnets 2. Knows that magnets can repel other magnets 3. Knows that magnets attract certain kinds of materials 4. Knows that magnets attract iron 5. Knows that magnets attract steel
Visual Aid Used
And the experiment begins…
Mindi’s Experiment What Sticks to a Magnet? Content learning goals: Magnets interact differently with different materials.
Key Questions: What types of materials stick to magnets? Do all magnets stick to or not stick to the same types of materials?
Procedures Used: Students predicted from various items what would stick to a magnet then logged their predictions. Students tested their predictions. Students recorded their actual observations.
Mindi’s Supplies •Aluminum Can •Paperclips
•Marbles •Wooden Block •Pennies
•Crayons •Pencil •Bobby pins
•Rubber band
Worksheet M1-W1 To be used with: Activity M1 Magnetic Interactions
NAME:_________________________
Directions: For each item, predict whether it will stick to a magnet. Write your prediction in the “prediction” column. Test your materials and write the result in the “result” column. ITEM
PREDICTION
RESULT
PAPER CLIPS
PENNY
MARBLE
PENCIL
ALUMINUM CAN
CRAYON
WOODEN BLOCK Other object: Other object:
Come up with a “rule” that can describe they types of things that stick to magnets. Write your rule on the back of this page.
Mindi Live…
And the experiment begins…
Elizabeth's Experiment The Making of a Magnet
Content Learning Goals: •A nail can become magnetic when you rub it against a bar magnet. •During this process, the bar magnet straightens out the iron atoms inside the nail aligning them in one direction causing the nail to become a magnet. •Through the force of magnetism, the nail can then attract other objects that contain iron. (The nail, too, must be made at least partly from iron for this to work.) • After magnetizing a nail, you can then demagnetize the same nail.
The Making of a Magnet (con’t) Key Questions: How can you make a magnet from a nail? What causes the nail to become magnetic? How do you demagnetize a nail?
The Making of a Magnet (con’t) Procedures Used: Students tested their nails to see if they had any
magnetic properties. Students rubbed the nail in a stroking fashion from the head to the tip with a bar magnet.
Students tested their nails by attempting to pick up a
paperclip. Students then dropped their nail on the floor causing the atoms with magnetic properties to “mix-up” no longer being aligned, demagnetizing the nail. Students observed that the nail no longer would pick up the paperclip.
Elizabeth’s Supplies Wand Magnet
Nail Paper clips
Making a Magnet STEP 1: Take your nail and place it next to a paperclip. Does your nail show any signs of magnetism towards the paperclip? Yes or No______ STEP 2: Take the wand magnet and rub the nail in a stroking fashion in the same direction beginning with the head of the nail and stroking towards the tip. Do this about 10 times. STEP 3: Again, place the nail next to the paperclip. What happens? __________________________________________________________ __________________________________________________________. STEP 4: Rub the nail 10 more times. Does this make the magnet stronger?__________________________________________________. Continue to rub the nail 10 times and see if you can pick up the paperclip with the nail. STEP 5: Drop the nail on the floor. Does this do anything to it's magnetism? What happens?__________________________________ __________________________________________________________. STEP 6: How can you make the nail become a magnet again? __________________________________________________________.
Is your nail a magnet?
Constructing a magnet by touch/stroke method
Constructing a magnet…con’t
Demagnetizing the nail
Special thanks to : Mr. Adam Lett, Principal White Rock Elementary Jane, Missouri
& Mrs. Christie Hampson 3rd Grade Teacher & her awesome class
We appreciate the hospitality and your willingness to allow us the encounter of authentic classroom teaching. This experience was beneficial beyond measure.
Mrs. Melody Thomas PET Instructor NWACC Ms. Joanna Hill Tech Support
“We appreciate your support in aiding us with the knowledge and assistance for this project. We grew as learners and as future teachers…” …Mindi & Elizabeth
