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[°úÇмöÇÐ]¾î¶² °ÍµéÀÌ ¹°¿¡ ¶ã±î??...´Þ°¿À» ¹°¿¡ ¶ç¿ï ¼ö ÀÖ´Ï??...density !!

±Û¾´ÀÌ ÂÞÂÞ¹Ù

µî·ÏÀÏ 2009-11-05 00:26

Á¶È¸¼ö 6,763

´ñ±Û 4

http://www.suksuk.co.kr/momboard/CDX_001/11242

Ä«Ä«¿ÀÅå Ä«Ä«¿À½ºÅ丮 ºí·Î±× ³×À̹ö¹êµå ÆäÀ̽ººÏ Æ®À§ÅÍ
¾¦¾¦´åÄÄ - ÆÄÀÏ ´Ù¿î·Îµå

ÆÄÀÏÀ» ´Ù¿î·Îµå ÇÕ´Ï´Ù.

´ñ±Û ³²±â±â

 

 

  °úÇÐ ½ÇÇèÀ» ÁÁ¾ÆÇÏ´Ùº¸´Ï...

  Áý¿¡¼­ ºÎ´ã¾øÀÌ °£´ÜÇÏ°Ô ÇÒ ¼ö ÀÖ´Â ½ÇÇèÀ¸·Î

  ¹°¿¡ ¶ß´Â °Í°ú ¶ßÁö ¾Ê´Â °ÍÀ» ¾Ë¾ÆºÃ¾î¿ë~~

  ÈñÇØ°¡ Á÷Á¢ ¸»ÇÏ°í ÁøÇàÇϴµ¥

   ÁßÁ¡À» µ×´ä´Ï´Ù..

 

 

  ½ÇÇè Àü 

 

  You will need

 

   water        

   pencil        

   raw egg      

   ruler

   apple

   nail

   paper boat

   hair pin

   rubber ball

  

    ´ë°­ Áý¿¡ ÀÖ´Â ¹°°ÇµéÀ» È°¿ëÇÏ½Ã¸é µÇ³×¿ä^^

    ÈñÇØ°¡ Á¾À̹踦 ¸¸µé¾î º¸°Ô Çϸ鼭

    ÁøÇàÇÒ ½ÇÇè¿¡  ´ëÇÑ  ±â´ë°¨µµ Á» ÁÖ°í...

    Èñ°ÇÀÌ ¿À´ÃÀº ¶Ç ¹º°¡?....Âû½Ï ´Þ¶óºÙ¾î Ž»öÀüÀ̳׿ä..¤»¤»

  

 

  Make some predictons( ¹Ì¸® ¿¹»óÇغ¸±â)

 

  Which things will float?

  Which things will sink?

 

  Will the pencil float?

  Will the nail float?

  Will the apple sink?... 

  

  ´ë»ó¹°¸¸ ¹Ù²Ù¾î¼­ ¹Ýº¹ Áú¹®°ú ´äÀ» ÇÏ¸é ¼ÕÀ» ¿À¸£¶ô ³»¸®¶ô Çϸé,

  ÀÚ¿¬½º·´°Ô ¹®ÀåÀÇ ÀÇ¹Ì¿Í ³»¿ëÀ» ¾Ë°Ô µÈ´ä´Ï´Ù^^...ÈñÇØ º¸À̽ÃÁÕ??

 

   Draw a chart for recording the results.

 

  ¹Ì¸® °á°ú Â÷Æ®¸¦ ±×·Á¼­ ´Ü¾îµµ ÀÍÈ÷¸é¼­ Áغñ¸¦ Çß´ä´Ï´Ù.

  ½º½º·Î ½á º¸¸é¼­ Çϸé È®½ÇÈ÷, ±â¾ïÀÌ ¿À·¡°£´ä´Ï´Ù~.

 

 

 

  ½ÇÇè Áß

 

  1. Fill a  bucktet with water.                       Åë¿¡ ¹° ä¿ö¼­

  2. Slowly lower  the pencil into the water.    õõÈ÷ ¿¬ÇÊ ¹°¿¡ ³Ö°í

  3. Remove the pencil from the water and test next item.  ¿¬ÇÊ»©°í

  4. Follow the same process for each item.   ´Ù¸¥ °Íµéµµ °°Àº ¹æ½ÄÀ¸·Î

  •   5. Continue testing each item.                    °è¼Ó ½ÇÇèÇϽɵǿë^^

 

 

  ¿ä·¸°Ô Çϸ鼭

  Áú¹®µµ ÇØÁÖÁö¿ä...

  Is the pencil floating?     Yes....It's floating.

  Is the raw egg floating?  No...It's sinking.

  Is thie naill floating?       Yes....It's floating...

  Is the apple floating?      Yes.....It's floating...

  Is the nail floating?        No.... It's sinking.

  I

  ±Ùµ¥ ¿¹»ó°ú ´Þ¸®

  »ç°ú´Â °¡¶ó¾ÉÀ» °Å¶ó »ý°¢Çߴµ¥ ¶°¼­..¹«Ã´À̳ª

  ½Å±âÇØÇß´ä´Ï´Ù.. Èñ°ÇÀÌ µ¹¸°´Ù°í Á¤½Å¾øÁÕ~~¤»¤»

  ÀÚ´Â ¶ã °Å¶ó »ý°¢Çߴµ¥ ...Çöó½ºÆ½Àε¥µµ °¡¶ó¾É´õ±º¿ä...

   ±×·¡¼­ Àúµµ ½Å±âÇؼ­ ´õ Àç¹Õ°Ô  ÁöÄѺ¸¸ç ½ÇÇèÀ» ÁøÇàÇÏ°Ô µÇ´õ±º¿ä^^

 

 

   Is the rubber ball sinking? No....it's floating.

   Is the coin sinking? Yes....It's sinking....

 

  °ø±¼¸®´À¶ó µÑÀÌ ½Å³µ½À´Ï´Ù...Çϳª¾¿ Çϳª¾¿...Èñ°ÇÀÌ ¹°Àå³­ÀÌ ³Ñ ÁÁÀº°¡ºÁ¿ë

 

 

 ÀÌ¿Õ Á¤¸®ÇÒ °Å

  ¸ðµÎ ³Ö¾î È®Àεµ ÇÏ°í, ³î±âµµ ÇÏ°í...Ç×»ó ¸¶Áö¸·Àº «»Í!!...¤»¤»

  È®¿¬È÷ ¶ß´Â °Í°ú °¡¶ó¾É´Â °ÍÀÌ º¸ÀÌÁÕ~~..^^

 

  

    Ç¥·Î Á¤¸®Çغ¸°í,,,,¿¹»ó°ú ´Þ¸®

    ¹°¿¡ ¶ß´ø »ç°ú,  °¡¶ó¾É´ø ÀÚ´Â ´õ¿í ±â¾ï¿¡ ³²³×¿ä...^^Èñ°ÇÀ̶û

   ½ÇÇèÀç·áÀÎ »ç°ú¸¦ °£½ÄÀ¸·Î ...¾ö¸¶´Â È기 ¹° Ä¡¿ì´À¶ó ¹Ù»Ûµ¥..

   ¾Æ±×µéÀº ³î°í, ¸Ô°í ³Ñ³Ñ ÁÁÀ¸³×¿ä...ÄÊ!

 

 

 

  ½ÇÇè ÈÄ

 

  ¿ø¸®

  ¿Ö ±×·³ ¾î¶² °Ç ¶ß°í, ¾î¶² °Ç °¡¶ó¾É´Â Áö ¿ø¸®¸¦ ¾Ë¾ÆºÁ¾ßÁö¿ä...

 

  Why do some things float but not others?

 

The density of the pencil is less than the density of the water.

The density of the nail is greater than the density of the water.

  

   ¹Ðµµ¸¦ ¾Ë°Ô ÇÏ·Á°í

   ºñ½ÁÇÑ Å©±âÀÇ Ä«¸Þ¶óÁý°ú ¼è·ÎµÈ ±âÂ÷¸¦ µé¾îº¸±¸¿ä...°¨À» ÀâÁö¿ë~

 

  °¢ ¿¬ÇÊ,°í¹«°ø, Á¾ÀÌ¹è µîÀÇ ¹°º¸´Ù ¹Ðµµ°¡ À۾Ƽ­...(°¡º­¿ö¼­)   ¹°¿¡ ¶ß°Ô µÇÁö¿ä..

 

   ´ë»óÀ» ¹Ù²Ù¾î

  ³¯´Þ°¿, ¸ø, ÀÚ µîÀº ¹°º¸´Ù ¹Ðµµ°¡ Ä¿¼­   °¡¶ó¾É´Â´Ù°í ½áº¸±âµµ Çϱ¸¿ä..

  

   ÀÌ·¸°Ô ´ë»óÀÇ ¹Ðµµ¿¡ µû¶ó ¶ß´Â °ÍÀº °áÁ¤µÈ´Ù°í Á¤¸®Çß´ä´Ï´Ù..

  Things float depending on their density. (¹Ðµµ)

 

 

   ¸¶¹«¸® ¾×ƼºñƼ!

  ¿ä·¸°Ô ¹°¿¡ ¶ß´Â °Í°ú ¾È ¶ß´Â °ÍÀ» ±×·Áº¸¸é¼­

  ¸¶¹«¸® Ç߳׿ä^^

 

   ¾î·Á¿ï °Í °°Áö¸¸,

   ¾ÆÀ̵éÀº '½ºÆùÁö'¶ó density(¹Ðµµ)..¿µ¾îµµ óÀ½¹è¿ì´Â ÇÑ±Û ´Ü¾îó·³ ¹Þ¾ÆµéÀ̳׿ä...

   (±ÛÄÉ ¹Ï°í ¾ö¸¶Ç¥ ÇÑ´ä´Ï´Ù...)

  

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  ^^

 

 

    ¹°¿¡ ¶ß´Â °Í¿¡ ´ëÇÑ ½ÇÇèÀ» ÇÏ°í ³­  ÈÄ

   ÈñÇØ´Â ´Þ°¿À» ¹°¿¡ ¶ß°Ô ÇÏ´Â ½ÇÇèÀ» ¾îµð¼­ ºÃ´ÂÁö

   ÀÚ²Ù Çغ¸ÀÚ°í Çؼ­

 

    À̰͵µ ¹°ÀÇ ¹Ðµµ¿Í °ü·ÃÀÌ À־ ¿¬°üÁö¾î, ´ÙÀ½³¯

   ¿äÁò Ãß¼¼¿¡ ¶Ç Çѹø ¸ÂÃç.. ¸ôÀÔ¿µ¾î..¤»¤»...µû¶óÀâ±â ¶Ç ÇÕ´Ï´Ù.....Çä...Çä!!

 

 

  ½ÇÇè Àü 

 

   You will need

 

   2 clear glasses

   2 eggs

   water

   table salt (Àú´Â ±½Àº ¼Ò±ÝÀ¸·Î..¤»¤»)

   a table spoon

 

 

   ½ÇÇè Áß

 

   1. Fill one glass halfway with water.  ÄÅ¿¡ ¹° ¹Ý ä¿ì°í

   2. Fill the other glass halfway water,  add 10  tablespoons of salt.

                                                 ´Ù¸¥ ÄÅ¿¡µµ ¹° ¹Ý ä¿ì°í, ¼Ò±Ý 10½ºÇ¬ ³Ö¾îÁà

   3. and Stir it really well, until the salt has dissolved in the water.

                                                            ¼Ò±ÝÀÌ ´Ù ³ìÀ» ¶§±îÁö Àß ¼¯¾î

   4. Carefully place the egg in each glass.  °¢°¢¿¡ Á¶½ÉÇؼ­ ³ÖÀÚ.

 

 

     Á¶½É½º·¹ ¼Ò±Ý³ÖÀ¸¸é¼­ ÁÁ¾ÆÇÏ°í,

     ¼Ò±ÝÀÌ ¾Èº¸ÀÏ ¶§±îÁö ¿­½ÉÈ÷ ¼¯°í ÀÖ´Â ÈñÇØ!...¤»¤»...³ª¸§ ¿­Á߸ðµå³×¿ë~

 

 

 

     ¹° ¼ÓÀ» ÀÚ¼¼È÷ º¸¸ç °üÂû!!...µÕµÕ ¶á ´Þ°¿ Àß  º¸À̽ÃÁÕ??...ÇìÇì..

     ¸ÀÀ» º¸°í´Â  À¸~~~~....Â¥´Ù~~...Á¤³ç ±×°É ¸ô¶ú³Ä...ǪÇÏÇÏ..ÈñÇؾç??

    ¿ä¾Õ¿¡ ÇÑ ' Çô½ÇÇè'¿¡¼­ ³»¿ëÀ» »ó±â½ÃÅ°¸ç

    http://www.suksuk.co.kr/momboard/read.php?table=CDX_001&number=11228&page=1

 

     Which part of your tongue can you taste salty food? Çô¾îµð·Î §¸ÀÀ» ºÁ?

    I taste salty food on the sides of my tongue.

    Çϸ鼭 Çô·Î ¤¾îÁÖ±¸¿ë~^^

 

  

    Which egg float?

    The egg in the salt water floats.

    Do you know why?....¿ª½¬³ª....´ë´ä¾ø³×¿ë~~¤»¤»

 

  

    ½ÇÇè ÈÄ

  

 The salt water is heavier than the plain water. ¼Ò±Ý¹°ÀÌ  ±×³É ¹°º¸´Ù ´õ ¹«°Å¿ö.

 

 The density of plain water is less than the density of the egg.

    So the egg sinks.                   ±×³É¹°Àº ´Þ°¿º¸´Ù ¹Ðµµ°¡ ÀÛ¾Æ. ±×·¡¼­ ´Þ°¿ÀÌ °¡¶ó¾É°í

 The densityt of salt water is greater than the density of the egg.

    So the egg floats.                   ¼Ò±Ý¹°Àº ´Þ°¿º¸´Ù ¹Ðµµ°¡ Ä¿. ±×·¡¼­ ´Þ°¿ÀÌ ¶°.

 

  .

    ¾îÁ¦ '¹Ðµµ'(density) ¿¡ ´ëÇؼ­´Â µéÀºÁö¶ó...½±°Ô ÁøÇàÀÌ µÆ³×¿ä...

   ±× ¿¬Àå¼±¿¡¼­..

 

  ¾Æ¹«°Íµµ µéÁö ¾ÊÀº ¹°ÀÇ ¹Ðµµ°¡ ´Þ°¿ÀÇ ¹Ðµµº¸´Ù À۾Ƽ­..

 ¹°ÀÌ À§ÂÊ,  ´Þ°¿ÀÌ ¹°¿¡ °¡¶ó¾É°í,

   ¼Ò±Ý¹°Àº µÎ °³ÀÇ ¹°Áú(¼Ò±Ý, ¹°) ÀÌ ÇÕÃÄÁ® ¹Ðµµ°¡ ³ô¾ÆÁ®¼­...

   ¹ØÀ¸·Î ³»·Á°¡´Ï  ´Þ°¿ÀÌ ¶á´Ù°í

   ±×¸²À¸·Î ±×·ÁÁÖ´Ï ÀÌÇØ°¡ ºü¸¥°¡ º¸³×¿ä..

 

   

  ÀÌ·¸°Ô ÀÌƲ°£ÀÇ ½ÇÇèÀ¸·Î ¹°À» ÅëÇØ

  ¾î·Á¿ï ¼ö ÀÖ´Â °úÇпø¸®¸¦ Àç¹Õ°Ô ³îÀÌó·³ Çϸ鼭 Çغõ¥¿ä..

  Àúµµ »õ»ï½º·¹  '¹°ÀÇ ¹Ðµµ(º¯È­)' ¶§¹®¿¡ »ç¹°ÀÌ ¹°¿¡ ¶ß³×.....ÇÏ°í ¸íÈ®È÷ ¾Ë ¼ö ÀÖ¾ú°í,

  ÈñÇØ¿¡°Ôµµ ¾ÆÁÖ ±â¾ï¿¡ ³²´Â density activity °¡ µÆ´ä´Ï´Ù...

  Àý´ë ÀÌ ´Ü¾î 'density' ¸¦ ÀØÁö ¸øÇÒ °Í °°³×¿ë~~.

  

 

  


¸¶ÀÌ ÆäÀÌÁö > ½ºÅ©·¦ºÏ¿¡¼­ È®ÀÎÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù. ¼ÒÁßÇÑ ±Û¿¡ °¨»ç ´ñ±Û ³²°ÜÁÖ¼¼¿ä.

        
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½ÇÇèÇÏ´Â Àú Ç¥Á¤ ¿ÕÁøÁöÇØ¿©~~

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ºÎ´ã¾øÀÌ ¾ÆÀ̶û Àç¹Õ°Ô ÇÏ°Ô µÉ °Í °°³×¿ë~~^^

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