NOTES ON THE EARTHS MAGNETOSPERE

By Josephine KooijWonhee ChoMichael Ko

INTERESTING FACTS ABOUT THE EARTHS MAGNETOSHPERE

Earth has a Magnetic field. The space affected by earths magnetic field

is called the magnetoshpere. This deflects (change word)charged particles

from the sun A theory is that movement of molten iron in

the outer core generates earths magnetic field

It defelcts particles from the sun It even changes direction

INTERESTING FACTS ABOUT NATURES MAGNETS

Animals use magnetism to find their way They have magnetite in their body to tell the way These contain only one magnetic domain, so small

HTTP://VIDEOS.HOWSTUFFWORKS.COM/HSW/11959-MAGNETISM-THE-EARTHS-

MAGNETIC-FIELD-VIDEO.HTM

HOW A COMPASS WORKS? A compass rotates till it’s needle (a bar magnet)

aligned with the earths magnetic field It detects and measures the earths magnetic field

MAGNETIC JEOPARDY

By Won Hee ChoJosephine KooijAnd Michael Ko

JEOPARDY BOARD

Magnets Magnetism Magnetic Fields

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End…

WHAT CAUSES A COMPASS NEEDLE TO ROTATE?

A. The earths magnetic field B. natures magnets C. magnetic domains D. Electrons

DOES THE EARTHS MAGNETIC FIELD EVER CHANGE DIRECTION???

A. Yes B. No C. very rarely D: It may happen in a couple years time

WHAT IS THE NEEDLE OF A COMPASS???

A: A titanium wand that uses magic to detect the north…

B: A Piece of Metal broken off from the north pole…

C: A small bar magnet with a north and south pole…

D: A piece of plastic painted with spray paint to look as If it’s made out of metal…

WHAT SIZE IS THE PIECES OF MAGNETITE IN ANIMALS’ BODIES???

A: A small, single magnetic Domain…

B: Really, Really small…C: Really, Really Big…D: It’s not scientifically proven…

DO THE MAGNETIC POLES MOVE???

A: YesB: NoC: It hasn’t been provenD: It Depends

WHAT HAPPENS AFTER A ROCK COOLS THAT HELPS SCIENTISTS TO

DETECT THE EARTHS MAGNETIC FIELD OVER THE YEARS???

A:The rock cools and the magnetic domains freeze into place so that Scientists can see how the earths magnetic field changed…

B: The Rock cools down then explodes into tiny pieces…

C: The rock cools down then splits in half and tiny crystals fall out…

D: The Rock cools down then turns into another rock…

HOW MANY MAGNETIC POLES DOES A MAGNET HAVE???

Just One… Two Three Four

IS MAGNETISM LIMITED TO JUST BAR MAGNETS?

A. Yes

B. No

D. Not proven to be

C. No but it can only reach to a certain point

TRY AGAIN… T.T

WHAT IS THE REGION OF SPACE AFFECTED BY EARTHS MAGNETIC FIELD?

A. Magnetic domains

B. The inner core

C. The earths mantle

D. Magnetosphere

WHAT DO ANIMALS HAVE IN THEIR BODIES THAT ACTS LIKE A COMPASS?

A. Tiny magnetic fields

B. A type of compass that sends a message through the nervous system telling the bird which way north is

C. They have tiny pieces of magnetite

D. Thousands of little magnetic domains that move just the tiniest bit to North telling the bird which way north it

WHAT IS USED TO DETECT/MEASURE THE EARTHS MAGNETIC FIELD?

C. Hydrometer

B. A machine that reacts to the earths south pole and repels it

A. A compass

D. A compass rose

CORRECT!!!

WHAT DEFLECTS THE PARTICLES FROM THE SUN???

A: Super-Strong Lasers that are constantly shooting at the sky.

B: The Earth’s Magnetosphere. C: Special Fans that blow the particles

away. D: The fumes from factories that trap t

he particles and carry them away…

HOW ARE MAGNETS IN AN ANIMAL?

A. Just naturally

B. Their mothers take out some parts of theirs and give it to the baby

C. Humans put them in at birth, some animals don’t have it

D. It’s formed when an animal is born, the intestines and little parts ofthe left brain are put together to form this small magnet inside the body.

ANIMALS NOT ONLY USE THE EARTHS MAGNETIC FIELD FOR NAVIGATION BUT ALSO…

C. The position of the sun or stars

A. The magnetic domains floating around in the sky

B. Little compact particles in water

D. The sounds the earths magnetic field gives off

THE EARTHS MAGNETIC FIELD IS LIKE THAT OF A BAR MAGNET WITH THE MAGNETS SOUTH

POLE NEAR THE…

B. Earths north pole

A. Earths south pole

C. East pole

D. West pole

THANKS FOR WATCHING!!!