Bean in a Jar Experiment

COOL KID SCIENCE: Grow a bean in a jar . I still remember doing this as a kid!  Can't wait to do it with my little :)
I vividly remember growing a bean in a plastic baggie when I was a girl.  I thought it was SO NEAT!  To help with observation we used a jar instead of a bean this time, and I was delighted to discover that my kids were just as amazed by this simple bit of science as I was so many years ago!  

COOL KID SCIENCE: Grow a bean in a jar . I still remember doing this as a kid!  Can't wait to do it with my little :)

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This is one of those activities that every kid should do at least once.  I love how easy it is to set up, too! 

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Materials
Note:  We used a Lima bean, but any dry bean should work.

Method
  • Wet several cotton balls and place them in a jar.  You want the cotton balls to be wet but not too saturated.  Then wedge a bean between the cotton balls and up against the jar so that your child can easily observe the bean growing
COOL KID SCIENCE: Grow a bean in a jar
  • Have your child predict what will happen to the bean, and then observe the jar over the next several days.  Add a few drops of water to the cotton balls as needed. 
  • The bean will begin to change fairly quickly.  Our beanstalk was beginning to form after just one day
COOL KID SCIENCE: Grow a bean in a jar

This is what our bean looked like after a few days 
COOL KID SCIENCE: Grow a bean in a jar
And after just one week
COOL KID SCIENCE: Grow a bean in a jar

COOL KID SCIENCE: Grow a bean in a jar

My girls loved checking on the beans throughout the week, and they loved watching them grow! 
COOL KID SCIENCE: Grow a bean in a jar
As we grew our magic beanstalk we discussed seeds/beanshow plants grow, and what plants need to thrive.  I asked Rosie and Jewel questions along the way like:
  • Do you think our bean would grow if it didn't have water?
  • Do you think the bean would grow if we put the jar in a closet away from sunlight?
  • How do you think the bean is taking in the water from the cotton balls?
I loved hearing their answers and watching their minds come to understand the science behind plants.  We also loved tying the story of Jack & the Beanstalk into our experiment.  It was really fun to read about Jack and his magic beanstalk while growing our own "magic stalk"!



Other books that you could read & enjoy with your child while doing this activity:



(Click the photos to view the books)



  

Other Science experiments to try with your child:
A beautiful Science experiment & a yummy treat all in one. My kids loved checking on their jars each day to see if the rock candy had grown!
AMAZING SCIENCE!  Make an erupting volcano that glows in the dark.  These eruptions glowed so intensely they lit the whole room; sure to WOW the kids!
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Experiment for Kids- grow a bean in a jar
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Experiment for kids- grow a magic beanstalk. Fun science that connects to the cherished fairy tale.
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