Ben, Darryl, and Luke:


Know about Magnets
Want to Learn About Magnets
What we learned about Magnets
Ben: Magnets can power motors.
Ben: Can anything de-magnetise a magnet?
Ben: The force of attraction can go through objects.
Ben: They can stick to Canadain coins but not U.S coins
Ben: How is a magnet made in nature and factories?
Ben: The foce of attraction can be broken easily.
Luke: Magnets don't stick to copper.
Luke: How the magnetic power is connected to the magnet?
Luke: Magnets are attracted to iron filings.
Luke:Magnets can have magnetic power to certain kind of metal.
Luke: Other metal tthat a magnet can stick to?
Luke: Magnets can power up certain things.
Darryl: Magnets have a north and south stuff.
Darryl: I want to learn how to make a magnet.
Darryl: Something magnetic has to have iron.
Darryl:Some magnets can stick to other magnets but some can't.
Darryl: I want to learn what makes the magnetic pull.
Darryl:Magnets do not attrack cooper.

Investigation #1: Magnets in our World
Use your magnets and materials to test what will stick and what will not stick to the magnets.
Sticks
Doesn't Stick
1. Black rocks
1.Copper foil
2. Paperclips
2. Sponge
3. Dull nail
3.Cardboard
4. Screw
4. Yarn
5. Screen
5.River rocks
6. Washer
6.Brass rings
7.Black rocks
7. Straws

8.Aluminum foil

9. Popsicle Sticks




Go around the room. Use the magnets in the room to find what items are made of iron or steel ( the magnet sticks to it) and which are not made of iron or steel (the magnet does not stick to it).
Things made of iron or steel
Things that are not iron or steel
1. Eng. Tech. Window Frame
1. Window
2. Lost and Found Shelf
2. Water Bottle
3. Doorframe
3. Door Lock
4. Fire Extinguisher Case
4. Whited Drinking Fountain
5. Pepsi Vending Machine
5. Silver Drinking Fountain
6. Door Hinge
6. Attendance Clip on Door
7. Hand Sanitizer Sstand
7. Post by the Cafeteria
8. Office Drinking Fountain
8. Media Center Sign
9.Office Bence
9. Light Switch Cover
10. Clip Board Clip
10. Cobra Medallion
Big Questions:
What materials did you discover magnets stick to?
We learned that magnets stick to iron and steel.
Describe what happens when two magnets come together.
When two magnets come together they will either stick together or repel away.


Investigation #2: Can the force of magnetism go through other materials? Which objects? Why? How do magnets and iron objects work together?





Objects that magnetism moves through
Objects that magnetism cannot move through





1. Clip Board
2.paper
1. Locker
2.desk
3.string
3.recycle
4.copper
4.sponge
5.woodstick
5.river rock
6.rubberband
6.book
7.cardboard
7.gluebottle
8.tinfoil
8.marker
9.straw
9.chairback
10. Dull nail
10.big blue shelf

||





Big Questions:
What objects allow magnetism to travel through?
We have noticed that magnetism travels through thinner magnets instead of thin magnets.
Why do you think this is so?
Our magnet isn't very powerful so the thinner the object the more likely for the magnetism to travel through.
How do magnets and iron objects work together?
Iron objects work with magnets by sticking to each other and a magnet can magnetise an iron object.
What is a temporary magnet?
A temporary magnet is an iron object that has become a magnet by rubbing with the magnet. This re-orgnizes the atoms so that they are all facing the same way.
What is an induced magnet?
An induced magnet is a magnetic object such as iron that becomes a temporary magnet when it is in a magnetic feild.


Investigation #3: How can the strength of the force of attraction between magnets be measured?
1.Test: Use this chart to record the data without the information for 2 spacers.
2.Graph your information using the the graph sheet "The Force". Take a picture and place it below this sentence when you are finished.
Number of Spacers
Number of Washers
0
16
1
10
2
Do not complete this experiment
3

4

5

6

Big Questions:
What was the best way to break the force?
The best way to break the force is to use a greater force, in our case weight.
What will happen to the force of attraction if you use plastic
spacers spacers between two attracting magnets?
If we put plastic spacers between the magnets I think that we will need less
washers to break the force.
Look at the graph and predict what will happen
when you use 2 spacers?
We predict that it would be 8 washers
Conclusion: What happened to the strength of attraction
between two magnets as the distance between them gets longer?
When you put plastic spacers beetween the magnets the
force of attraction gets weaker.


Investigation #4: Detecting the Force of Magnetism
Big Questions:
How can you figure out where two magnets are taped
in a box without looking inside?
With out looking in the box we can find the magnet by scanning the box
with a magnetic object.
Why do the filings do when placed near a magnet?
Why do they do this?
When the filings are close to a magnet they will quickly jump to the magnet and look like
hair. I think that this is so because iron is very magnetic and the filings is pure iron.
Do you think the compass has iron in it?
Why do you think so?
I think that only the compass needle has iron in it because when the magnet
gets near the compass the needle spins around.
What other things did you use to detect the magnets?
I used a paper clip and a washer to detect the magnets.
Which device worked best for detecting the magnets?
Why do you think this is?
The device that worked the best for detecting magnets was the washer. I think this is so
because the washer has a greater surface area then the paper clip.