Magnets
The __________ is a giant ___________.
Earth
magnet
How can you use magnets in your home?
Answers may vary.
Attaching photos or important appointment reminders to the fridge.
True or False
A magnet has 3 poles. They are the North Pole, the South Pole and the Earth Pole.
False
True or False
When magnetic field lines are very close together this shows a strong relationship.
True
True or False
Magnetic field lines are invisible.
True
True or False
Magnets stick to wood or glass.
False
Why would a pilot depend on magnetic field lines?
They depend on magnetic field lines to follow the correct path to fly the plane.
The same poles of a magnet will _____________.
repel
___________ have tiny magnetic particles in their bodies which help them detect the direction they are going when they fly, move and swim.
Animals
We conducted a hands-on experiment in class, where we sprinkled __________ ___________ onto a piece of paper to show a magnets magnetic field lines.
iron filings or iron shavings
The 2 types of magnets that we discussed in class were the _______ magnet and the _____________ magnet.
bar
horseshoe
What do families use in their cars to get them from one place to another?
GPS
Siri
The opposite poles of a magnet will ___________.
attract
A ___________ is a tool used for navigation that has a magnet in it, which always points north.
compass
When opposite poles attract, their magnetic field lines will look as though they are joining together, creating a ___________.
bridge
A magnetic force can _____________ or ____________ an object at a distance.
attract
repel
A GPS system depends on the __________ in the sky that orbit the Earth.
satellites
Magnets have strengths. Some are _____________ and some are ____________.
strong
weak
When harmful particles from outer space and the sun move towards the Earth's magnetic fields, they create a glowing light. This colorful light illuminates the night sky and is known as _________ __________ _________.
the Northern Lights
When the same poles repel or create a "dead zone", their magnetic field lines will look as though they are bent upwards and downwards, creating a ___________.
wall
Magnets attract to some __________ such as iron, nickel, cobalt and steel.
metals
How do doctors use magnetic field lines?
Patients go through a machine called an MRI, which has magnets in it to detect whether a patient will require surgery.
Barry had changed 2 variables in his experiment. In one of his tests he changed the position of the magnets and in the other he changed the strength. What is a variable?
A variable is something in an experiment that can be changed and measured.
How are magnetic field lines drawn?
They are drawn from one pole to the other.
Magnetic field lines that are closer together are _________ (sparser, denser), while filed lines that are farther apart are (sparser, denser).
denser
sparser