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Magnetism Unit 13

  Magnetism   Magnets are useful things: Magnets can be used to hold cupboards doors shut. They are used in electric motors and generators. They are used in headphones and loudspeakers. They have fun uses - for example, magnetic letters. Permanent Magnet A permanent magnet is an object that is magnetised for a long time. It doesn't stop being a magnet after it has been used. Permanent magnets come in different shapes and sizes.  B. Magnetic Material A material which is attracted by a magnet is called a magnetic material. Iron is a magnetic material and also steel, nickel and cobalt (most of steel are also magnetic). Nowadays many small and strong magnets are made using neodymium . Authors metal such as aluminium and tin are non-magnetic. C. Magnetic Poles Magnets attract magnetic material because there is a magnetic force which pulls magnetic object when magnet attracts it. The ends of the magnet are called its magnetic pole . The poles are called the north pole(N) and the
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Magnetism Unit 13

  Magnetism   Magnets are useful things: Magnets can be used to hold cupboards doors shut. They are used in electric motors and generators. They are used in headphones and loudspeakers. They have fun uses - for example, magnetic letters. Permanent Magnet A permanent magnet is an object that is magnetised for a long time. It doesn't stop being a magnet after it has been used. Permanent magnets come in different shapes and sizes.  B. Magnetic Material A material which is attracted by a magnet is called a magnetic material. Iron is a magnetic material and also steel, nickel and cobalt (most of steel are also magnetic). Nowadays many small and strong magnets are made using neodymium . Authors metal such as aluminium and tin are non-magnetic. C. Magnetic Poles Magnets attract magnetic material because there is a magnetic force which pulls magnetic object when magnet attracts it. The ends of the magnet are called its magnetic pole . The poles are called the north pole(N) and the
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Light Unit 12

  Light Light is important to us. We see things because light from them enters our eyes. Sight is one of the most important senses. We uses it to find out about the world around us For more information about light click the link below: Light (google docs) If you have a question use the comment or contact us Thank you
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Material Changes Unit 9

Material Changes  In this unit, we will talk about the changes of an object. This chapter includes changes on object and some reactions. Physical changes occur when objects undergo a change that does not change its chemical composition, so it doesn’t create a new substance. Chemical change occurs when one substance transforms into one or more different substances. So, in chemical change new substances are formed. For more explanation click this link below: Material Changes (google docs) If you have a question use the comment or contact us Thank you
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The Circulatory System Unit 3

The Circulatory System This is our first post. And we will talk about the human circulatory system. The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells. Consists of three organ that work together the heart (cardiovascular), lungs (pulmonary) & blood vessels. For more information please click this link The human circulatory system (google drive) The human circulatory system (google slide) If you have a question use the comment or contact us Thank you
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