Identifying Magnetic Problems - 3rd Grade Science
Card 1 of 15
What is the best reason to use a magnet in a cleanup problem?
What is the best reason to use a magnet in a cleanup problem?
Tap to reveal answer
It can pull magnetic metal pieces together quickly. Magnets attract all magnetic pieces at once, speeding cleanup.
It can pull magnetic metal pieces together quickly. Magnets attract all magnetic pieces at once, speeding cleanup.
← Didn't Know|Knew It →
Which option is a magnet-solvable problem: catching a fish in a pond or catching a metal “fish” in a toy fishing game?
Which option is a magnet-solvable problem: catching a fish in a pond or catching a metal “fish” in a toy fishing game?
Tap to reveal answer
Catching a metal “fish” in a toy fishing game. Toy fishing games use magnets to catch metal pieces; real fish aren't magnetic.
Catching a metal “fish” in a toy fishing game. Toy fishing games use magnets to catch metal pieces; real fish aren't magnetic.
← Didn't Know|Knew It →
Identify the problem magnets can solve: separating nails from rice or separating rice from water using a strainer.
Identify the problem magnets can solve: separating nails from rice or separating rice from water using a strainer.
Tap to reveal answer
Separating nails from rice. Nails are magnetic metal; rice isn't, so magnets separate them easily.
Separating nails from rice. Nails are magnetic metal; rice isn't, so magnets separate them easily.
← Didn't Know|Knew It →
Which problem can be solved by magnets: attaching a note to a metal locker or attaching a note to a glass window?
Which problem can be solved by magnets: attaching a note to a metal locker or attaching a note to a glass window?
Tap to reveal answer
Attaching a note to a metal locker. Metal lockers are magnetic surfaces; glass is not magnetic.
Attaching a note to a metal locker. Metal lockers are magnetic surfaces; glass is not magnetic.
← Didn't Know|Knew It →
Which option is a magnet problem: testing if a mystery object contains iron or testing if water is salty?
Which option is a magnet problem: testing if a mystery object contains iron or testing if water is salty?
Tap to reveal answer
Testing if a mystery object contains iron. If iron is present, a magnet will attract it; magnets can't test salt.
Testing if a mystery object contains iron. If iron is present, a magnet will attract it; magnets can't test salt.
← Didn't Know|Knew It →
Identify the problem solvable with magnets: making a compass point north or making water boil faster.
Identify the problem solvable with magnets: making a compass point north or making water boil faster.
Tap to reveal answer
Making a compass point north. Compass needles are magnets that align with Earth's magnetic field.
Making a compass point north. Compass needles are magnets that align with Earth's magnetic field.
← Didn't Know|Knew It →
What is the correct choice: a magnet can attract a coin made of steel or a coin made of wood?
What is the correct choice: a magnet can attract a coin made of steel or a coin made of wood?
Tap to reveal answer
A coin made of steel. Steel contains iron and is magnetic; wood is never magnetic.
A coin made of steel. Steel contains iron and is magnetic; wood is never magnetic.
← Didn't Know|Knew It →
Which problem is best solved using a magnet: removing iron bits from a workbench or removing sawdust from a broom?
Which problem is best solved using a magnet: removing iron bits from a workbench or removing sawdust from a broom?
Tap to reveal answer
Removing iron bits from a workbench. Iron bits are magnetic; sawdust is not magnetic.
Removing iron bits from a workbench. Iron bits are magnetic; sawdust is not magnetic.
← Didn't Know|Knew It →
Identify the problem that magnets can solve: moving a toy car without touching it or making a paper airplane fly farther.
Identify the problem that magnets can solve: moving a toy car without touching it or making a paper airplane fly farther.
Tap to reveal answer
Moving a toy car without touching it (with magnets). Magnets can push/pull magnetic objects without contact.
Moving a toy car without touching it (with magnets). Magnets can push/pull magnetic objects without contact.
← Didn't Know|Knew It →
What is a magnet useful for when you need to pick up many paper clips quickly?
What is a magnet useful for when you need to pick up many paper clips quickly?
Tap to reveal answer
Collecting paper clips without touching each one. Magnets attract metal objects from a distance, saving time and effort.
Collecting paper clips without touching each one. Magnets attract metal objects from a distance, saving time and effort.
← Didn't Know|Knew It →
Which option is a problem that can be solved using magnets: lifting a steel nail or lifting a wooden stick?
Which option is a problem that can be solved using magnets: lifting a steel nail or lifting a wooden stick?
Tap to reveal answer
Lifting a steel nail. Steel contains iron, which is magnetic; wood is not magnetic.
Lifting a steel nail. Steel contains iron, which is magnetic; wood is not magnetic.
← Didn't Know|Knew It →
Identify the problem best solved with a magnet: finding a lost metal pin in carpet or finding a lost rubber band in carpet.
Identify the problem best solved with a magnet: finding a lost metal pin in carpet or finding a lost rubber band in carpet.
Tap to reveal answer
Finding a lost metal pin in carpet. Magnets attract metal but not rubber, making metal easy to find.
Finding a lost metal pin in carpet. Magnets attract metal but not rubber, making metal easy to find.
← Didn't Know|Knew It →
Which tool best solves this problem: retrieving a metal screw dropped in a narrow gap, a magnet or a sponge?
Which tool best solves this problem: retrieving a metal screw dropped in a narrow gap, a magnet or a sponge?
Tap to reveal answer
A magnet. Magnets can reach and attract metal in tight spaces; sponges can't.
A magnet. Magnets can reach and attract metal in tight spaces; sponges can't.
← Didn't Know|Knew It →
Which problem can a magnet solve: separating iron filings from sand or separating sugar from salt?
Which problem can a magnet solve: separating iron filings from sand or separating sugar from salt?
Tap to reveal answer
Separating iron filings from sand. Iron is magnetic and can be pulled out; sugar and salt aren't magnetic.
Separating iron filings from sand. Iron is magnetic and can be pulled out; sugar and salt aren't magnetic.
← Didn't Know|Knew It →
What is the key property that makes a problem solvable with magnets?
What is the key property that makes a problem solvable with magnets?
Tap to reveal answer
The object is attracted to a magnet (magnetic material). Only materials containing iron, nickel, or cobalt are magnetic.
The object is attracted to a magnet (magnetic material). Only materials containing iron, nickel, or cobalt are magnetic.
← Didn't Know|Knew It →