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NS 6119 www . nowaszkola . com magnes sztabkowy bar magnet pudełko na baterie battery compartment
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Prepare : przewody wires
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Przygotuj :
Prepare : urządzenie elektromagnetyczne electromagnetic device
żelazne przedmioty ferrous objects pudełko na baterie battery compartment
przedmioty , które nie są przyciągane przez magnes objects that are not attracted to a magnet
2 magnetyczne figurki magnetic figures
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Doświadczenie 11 Experiment 11 żelazne przedmioty ferrous objects
przewody wires urządzenie elektromagnetyczne electromagnetic device www . nowaszkola . com plastikowa płytka labiryntu
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NS 6119 plastic labyrinth board
magnes ręczny hand-held magnet
Doświadczenie 3 Przygotuj :
Experiment 3 Prepare :
2 magnesy pierścieniowe ring magnets
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Experiment 9 Prepare :
magnes kolumnowy column magnet
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magnetyczny wspornik magnetic bracket
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bar magnet
opiłki żelaza iron filings
wagoniki trolleys
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Lesson Plan 1 . Magnets
Main goals
student provides de� nitions for the following terms : magnet , magnetic � eld , and magnetism ,
student explores the interaction between magnets .
Key competences communication in the mother tongue ,
mathematical competence and basic / core competencies in science and technology ,
ability to learn , social and civic competences .
Speci�c goals Student :
knows the names of the magnetic poles of a single magnet and the Earth ,
can demonstrate and describe the interaction of magnetic poles ,
uses a magnetic needle to determine the polarity of a magnetic � eld ,
knows how a compass works , describe the effect of magnets on iron , characterise ferromagnetic substances , gives examples of ferromagnets , explains what a magnetic � eld is , knows how to determine the direction of a magnetic �eld ,
knows that each part of a divided magnet becomes a magnet ,
knows how to conduct an experiment and draw appropriate conclusions ,
give examples of how a magnet can be used .
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Methods of work discussion , talk , demonstration , experiment , brainstorming , problem method .
Forms of work individual , group , collective .
MAGNETICITY
Lesson Plan 2 . Magnetic levitation
Main goals shaping the scienti� c attitudes of students , understanding the principle of Maglev .
Key competences communication in the mother tongue ,
mathematical competence and basic competencies in science and technology ,
ability to learn , social and civic competences .
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Teaching aids Science Suitcase Magneticity consists of :
Science Electricity Suitcase Kit components : iron materials , bar magnet , U-shaped magnet , plastic maze tile , handheld magnet , magnetic � gures , magnetic chips , column magnet , compass , objects that are not attracted Lesson to a magnet Plan . 1 . Magnets
Worksheets for the Science Suitcase Magneticity : Experiments 1 , 2 , 6 , 7 , 8 , and 9 .
Speci�c goals Student :
Experiment # 9 Students prepare the following materials :
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During this experiment , the students will learn that the main component of a compass is a magnetic needle – a small , thin magnet whose north pole always aligns with the Earth ’ s geographic north pole . Conclusion : the compass interacts with a large magnet – the Earth .
The teacher explains in detail how a compass works , and how the needle reacts when placed near a magnet . It is worth mentioning that every few hundred thousand years there is a change in the magnetic poles of the Earth .
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is curious about the world around him , conducts experiments according to instructions , discusses the properties of magnetic poles , depicts the magnetic � eld , can explain the phenomenon of magnetic levitation .
Methods of work discussion , talk , demonstration , experiment , brainstorming , problem method .
Forms of work group , collective .
Teaching aids Science Suitcase Magneticity .
Science Suitcase Magneticity Kit components : iron materials , bar magnet , U-shaped magnet , magnetic cantilever , ring magnets , trolleys , small magnetic balls , hand-held magnetic horseshoe .
Worksheets for the Science Suitcase Magneticity : Experiments 3,4 and 10 . MAGNETICITY
Lesson Plan 3 . Electromagnet
Lesson ’ s content Introduction phase 1 . Organisational activities .
2 . Teacher introduces the topic of the lesson to the students .
3 . Then asks the students a question in order to encourage brainstorming :
Have you seen electric magnets used in everyday life ?
Sextupole magnets used for focussing the electron beam in the storage ring , as used at the Australian Synchrotron , Clayton , Victoria . Phot . ( cc ) John O ’ Neill , https :// en . wikipedia . org / wiki / Special : Emailuser / Jjron
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Implementation phase
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1 . The students have a discussion and they try to answer the question posed by the teacher . The teacher writes down the students ’ ideas , and then they organise them together . The teacher presents the objectives of the lesson .
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Electromagnet with variable air gap , creates up to 2 Tesla magnetic � elds with 20 A . Phot . ( cc ) Antennamax , https :// en . wikipedia . org / wiki / File : AGEM5520 . jpg
2 . The teacher recalls all the concepts related to magnets and magnetism from the previous lesson .
3 . Next , the teacher provides examples of practical applications of electromagnets .
4 . The teacher uses the electromagnet from the Science Suitcase Experiment Kit – Magneticity and demonstrates to students the construction and operation of the electromagnet .
5 . After the presentation , the teacher leads a discussion to summarise previously mentioned ideas .
6 . Then the teacher divides the students into 2 groups . Each of them , on the basis of the experiment # 5 worksheets , builds their � rst electromagnet . The teacher directs the pupils ’ work in such a way that they ask appropriate questions , draw conclusions , and � nally , share their result .
Lesson Plan 1 . Magnets
Experiment # 8 . Students prepare the following materials :
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Students investigate how different bodies react to a magnet . They classify them into those that are attracted by a magnet and those that are not . The teacher explains what ferromagnets are , and together with students list their properties .
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Conclusions
Objects attracted by a magnet are called ferromagnets .
Magnetic � eld . Phot . ( cc ) Geek3 . https :// en . wikipedia . org / wiki / File : VFPt _ Solenoid _ correct2 . svg
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11 . The teacher presents the effects which magnetic � elds have on nature . Students make a poster showing the effects of magnetic � elds on plants , animals , and people .
12 . Brainstorming examples of the use of magnets in everyday live ( telecommunications , radio engineering , measuring techniques , motors , generators , etc .).
Conclusion phase
1 . The teacher characterise the lesson , asks students to characterize the properties of a magnet , and assigns a group project entitled :
The role of magnets and magnetism in human life .
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MAGNETICITY
Ferromagnetic consists of a large number of domains , or areas of magnetisation , which behave like small magnets . They are usually arranged chaotically unless magnetised . It can be done by moving a magnet across its surface . Then , the domains are rearranged . Examples of ferromagnets : iron , cobalt , nickel and their alloys .
Ferro�uid .
Lesson Plan 2 . Magnetic levitation
Lesson ’ s content Introduction phase 1 . Organisational activities .
2 . Teacher introduces the topic of the lesson to the students .
3 . Then , a question in order to encourage brainstorming .
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What is levitation ?
A live frog levitates inside a 32 mm diameter vertical bore of a Bitter solenoid in a magnetic � eld of about 16 teslas . Phot . ( cc ) Lijnis Nelemans , High Field Magnet Laboratory , Radboud University Nijmegen , https :// en . wikipedia . org / wiki / File : Frog _ diamagnetic _ levitation . jpg
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Phot . ( cc ) Gregory F . Maxwell < gmaxwell @ gmail . com >
The teacher may also mention diamagnetics and paramagnetics .
6 . The teacher gets the column magnets ready . The students are asked to break one magnet in half . Then , one student should take the other magnet , which is till intact , and move it closer to one of the broken parts . Conclusion : due to the breaking of the magnet , two smaller magnets are created a magnet always has two poles .
7 . The teacher shows an experiment : he / she puts a steel screw between the poles of two bar magnets . Then he / she pushes Lesson the magnets Plan together - the 1 screw . Magnets falls down . Conclusion : after joining the magnets together one big magnet is created .
Implementation phase
4 . The teacher prepares experiment # 2 worksheets which show the repulsion and attraction of magnets :
Experiment # 2 . Students prepare the following materials :
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The experiment is designed to show that magnets have different magnetic poles and are referred to as „ N ” and „ S ” poles respectively . Magnetic poles with the same name repel each other and magnetic poles with different names attract each other .
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5 . The teacher prepares worksheets with experiment # 1 and # 8 which show how the magnets interact with other bodies . The students are divided into groups and asked to investigate the interaction of a magnet with different materials . Students present their � ndings and the teacher introduces
1 . The students have a discussion and they try to answer the question posed by the teacher . The teacher writes down the students ’ ideas , and then they organise them together . The teacher presents the objectives of the lesson .
Magnetic levitation can be stabilised using different techniques ; here rotation ( spin ) is used . Phot . ( cc ) Roberto Arias from London , United Kingdom , https :// en . wikipedia . org / wiki / File : Science _ show _ magnetic _ levitation . jpg
2 . The teacher recalls all the concepts related to magnets and magnetism from the previous lesson .
3 . Then the teacher divides the students into 3 groups . Each group conducts one randomly chosen experiment on the basis of the worksheets with experiments number 3,4 , and 10 . The teacher directs the students ’ work in such a way that they ask appropriate questions , draw conclusions , and � nally , share their result to the whole class .
MAGNETICITY
Lesson Plan 3 . Electromagnet
Experiment # 5 Students prepare the following materials :
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After completing the task , the students present their results . The teacher gives the students a short text that needs to be put in the correct order .
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A simple electromagnet , consisting of an insulated wire wound around an iron core . When an electric current is passed through the wire , the iron core becomes a magnet , with a north pole at one end and a south pole at the other . Phot . ( cc ) Berserkerus at Russian Wikipedia , https :// en . wikipedia . org / wiki / File : Simple _ electromagnet2 . gif
The students ’ task is to put together a note on the construction of an electromagnet . ( Below is the correct order ):
An electromagnet is a coil ( otherwise known as a solenoid ) with a core inside , made of ferromagnetic material , in which current � ows .
The core is usually made of mild steel i . e . not hardened .
It magnetises quickly , and once the external magnetic � eld subsides , it demagnetises quickly .
In AC electromagnets ( voltage and current � uctuate ) the cores are made of sheets coated with an insulating layer .
This prevents energy losses caused by the eddy current .
In electromagnets whose coils are in contact with the core , the wire should be insulated so that current
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cannot � ow over the surface of the core .
The horseshoe shape of the electromagnet reduces the magnetic � ux dispersion .
Lesson Plan 1 . Magnets
Lesson ’ s content Introduction phase 1 . Organisational activities .
2 . Teacher introduces the topic of the lesson to the students .
the concept of ferromagnets and describes their properties .
Experiment # 1 . Students prepare the following materials :
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3 . Then asks the students a question in order to encourage brainstorming .
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The experiment is designed to show that magnets attract a large number of iron parts , which indicates how strong the magnet is . The strongest magnetic part of a magnet is called the magnetic pole . Before performing the experiment , it is advised to demonstrate the students that steel objects do not retain their own magnetic � eld ; only when they come into contact with a magnet do they act like one .
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Conclusions The magnet attracts steel and iron .
The magnet causes the iron to become magnetized and then attracts it .
What is a magnet ? Have you seen one in your everyday life ?
Magnetit . Phot . ( cc ) Archaeodontosaurus , https :// pl . wikipedia . org / wiki / Plik : Magnetite . jpg
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Implementation phase
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Lesson Plan 2 . Magnetic levitation
Experiment # 3 Students prepare the following materials :
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This experiment demonstrates that thanks to the principle of mutual repulsion of magnetic poles with the same name , it is possible to suspend the magnetic ring in the air .
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Magnetite
1 . The students have a discussion and they try to answer the question posed by the teacher . The teacher writes down the students ’ ideas on the board and then they organise them together . The teacher also refers to the history of magnets and magnetism ( near the Greek town Magnesia a stone was discovered that attracted pieces of iron called magnetite ).
2 . The teacher introduces the concepts of magnets and magnetism .
3 . The teacher shows students bar magnets and U-shaped ( horseshoe ) magnets . Together with students he / she discusses their construction and markings :
N ( North ) – North Pole . Connotation useful for students north is associated with cold – color blue .
MAGNETICITY
S ( South ) – South Pole . Connotation Lesson useful for Plan students 2 . Magnetic levitation the south is associated with warmth – color red .
A superconductor levitating above a permanent magnet . Phot . ( cc ) Julien Bobroff ( user : Jubobroff ), Frederic Bouquet ( user : Fbouquet ), LPS , Orsay , France , https :// en . wikipedia . org / wiki / File : Levitation _ superconductivity . JPG
Experiment # 4 Students prepare the following materials :
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The Transrapid system uses servomechanisms to pull the train on the tracks and maintain a magnetic gap when driving at high speed . Fot . ( cc ) JakeLM . https :// en . wikipedia . org / wiki / File : Maglev _ june2005 . jpg
Experiment # 10 Students prepare the following materials :
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The “ Maglev ” experiment . Stacking magnet wheels on the magnetic horseshoe . The students will see that it ’ s possible to suspend objects in the air .
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The experiment is designed to show that magnetic poles with the same name repel each other , and magnetic poles with different names attract each other . Thus , the trolleys can repel or attract each other . In the second case , the � rst trolley pulls the second one behind it .
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7 . Now the teacher tells the students that they are going to see how an electromagnet works . To do this , each group will perform Experiment # 11 from the worksheets .
Students prepare the following materials :
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Magnetism is the property that magnets have . It is a complex and uncontrolled process . This experiment allows the students to see if there is another way of creating magnetic materials .
Students install electromagnets . They then use the installed electromagnet to attract the ferromagnetic material .
What we can observe : a powered coil with an iron core attracts ferrous material . Conclusion : the powering coil is magnetic and has the same properties as a magnet . We call it an electromagnet .
Now students construct a makeshift electromagnetic crane using an electromagnet to see which materials will be attracted it .
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Lesson Plan 1 . Magnets
8 . The teacher prepares experiment # 6 worksheets and asks students to perform the indicated experiment .
Experiment # 6 . Students prepare the following materials :
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One pupil slides the plastic �gures ( with magnets ) across the plastic board . The teacher asks the students :
Is this force a magnetic force ?
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Conclusions
There is a magnetic � eld around the magnet in which magnetic forces act .
9 . The teacher prepares experiment # 7 worksheets to discuss the direction of the magnetic � eld lines .
4 . After the students have performed the experiments and discussed the results of their observations , it is time to mention the magnetic railroads . Use the title “ Levitating trains : how does Maglev work ?” to introduce the topic .
5 . The students search the Internet for gadgets about the use of magnetic levitation . They explain how they work .
6 . Brainstorm about magnetic levitation and the attraction and repulsion of magnets in everyday life .
Conclusion phase
1 . The teacher summarises the lesson , asking students to design their own gadgets or devices using magnetic levitation .
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MAGNETICITY
Lesson Plan 3 . Electromagnet
Main goals Understand how electromagnets work .
Key competences communication in the mother tongue ,
mathematical competence and basic competencies in science and technology ,
ability to learn , social and civic competences .
Speci�c goals
The student : knows how an electromagnet is built , knows the working principle of an electromagnet ,, can build a simple electromagnet ,
uses a magnetic needle to test the poles of an electromagnet ,
gives some examples of applications of electromagnets .
Methods of work discussion , talk , demonstration , experiment , brainstorming , problem method .
Forms of work group , collective .
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Experiment # 7 . Students prepare the following materials :
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Students use magnets to attract iron � lings . When the magnet comes close to the area with the iron � lings , the black magnetic � lings rise vertically and move with the movement of the magnet . Based on this experiment , students try to explain the principle of a magnetic board called a “ disappearing pen ”.
Then , the students place magnets under a glass pane , � rst , one magnet , next , two magnets with opposite poles facing each other , and later with the same poles facing each other . However , each time they should remember to put iron � lings on the glass pane and shake it slightly .
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Conclusions
The � lings are arranged along the magnetic � eld lines .
On the outside of the magnet , the magnetic � eld lines are from N to S , and on the inside of the magnet , the lines are S to N .
Magnetic Cranes . Also referred to as electromagnetic cranes , these cranes are used to handle and move metals like steel and iron . They operate using a magnetic � eld that is formed by an electric current passing through windings around the magnet . The magnet is turned on and off when needed by the electric current . Phot . ( cc ) Girija Devi , Asst Exe Engineer Civil at Kerala State Electricity Board ( 1994-present ), https :// www . quora . com / Why-does-a-crane-have-a-magnet
Teaching aids Science Suitcase Magneticity .
Contents of the Science Suitcase Magneticity Kit : electromagnetic device , wires , battery compartment , iron objects , objects that are not attracted to a magnet .
Worksheets for the Science Suitcase Magneticity : Experiment 5 and 11 .
8 . After the experiment , the teacher explains how the electromagnet works . The right-hand rule is worth mentioning here .
Direction of �ow of electric current
Direction of the of magnetic induction
9 . After the students have conducted their experiments and discussed their � ndings , they create a project which presents the use of electromagnets in everyday life .
Conclusion phase
1 . The teacher summarises the lesson and plays “ quick questions ”, a game which refers to the topic of the lesson . Then , he / she rewards students who have demonstrated a strong understanding of the topic .
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MAGNETICITY
Lesson Plan 3 . Electromagnet
Experiment # 11
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Doświadczenie 1 Przygotuj :
Experiment 1 Prepare :
kawałek futra i gumowe pręty
kawałek jedwabiu i szklane pręty
Doświadczenie 1
Experiment 1
magnes sztabkowy bar magnet
wspornik obrotowy
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żelazne materiały ferrous materials magnes U-kształtny
U-shaped magnet
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Doświadczenie 2 Przygotuj :
Experiment 2 Prepare :
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Doświadczenie 2
Experiment 2
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Doświadczenie 3
Experiment 3
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Doświadczenie 4 Przygotuj :
Experiment 4 Prepare :
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Doświadczenie 4
Experiment 4
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Doświadczenie 5
Experiment 5
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Doświadczenie 5
Experiment 5
Doświadczenie 10 Przygotuj :
Experiment 10 Prepare :
małe kulki magnetyczne small magnetic balls
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Doświadczenie 10
Experiment 10
Doświadczenie 5 Przygotuj :
Experiment 5
Prepare :
ręczna podkowa magnetyczna
magnetic hand horseshoe
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Doświadczenie 11
Experiment 11
Doświadczenie 6
Experiment 6
Experiment 6
Doświadczenie 7
Experiment 7
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Doświadczenie 9
Experiment 9
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Doświadczenie 7 Przygotuj :
Experiment 7 Prepare :
magnes U-kształtny U-shaped magnet
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magnes sztabkowy
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Doświadczenie 8 Przygotuj :
Experiment 8 Prepare :
Doświadczenie 9
Experiment 9
magnes U-kształtny U-shaped magnet
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żelazne przedmioty ferrous objects
magnes sztabkowy bar magnet
przedmioty , które nie są przyciągane przez magnes
objects that are not attracted to a magnet
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Doświadczenie 8
Experiment 8
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Magnetism . Science suitcase with lesson scenarios and worksheets NS6119
The contents of the suitcase allow students to conduct simple experiments in the field of magnetism . With this set , it is possible to build electromagnets , test magnetic properties of different materials or to demonstrate how magnets
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and magnetic fields work . The teacher can also prepare an experiment which shows magnetic levitation . The lessons scenarios included in the set contain goals , methods , forms and a detailed lesson plan involving various interesting activities . The worksheets make conducting the experiments much easier thanks to the clear instructions . |
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