This WordPress.com site all about kindergarten science.

Archive for July, 2013

Balloons, bottles and blocks

Make your own barometer.  I am interested to see how well this works. I got the idea from http://www.parents.com/fun/games/educational/teach-about-weather-with-this-science-craft/?socsrc=pmmpin130627ffBarometer

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This next one demonstrates air pressure and the fact that hot air takes up less space than cold.  The bottle has hot water.  Place a balloon over the top and put in a bowl of ice water.  I got the idea from http://savvyandsleek.blogspot.com/2011/08/kid-craft-science-experiment.html?m=1

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This demonstrates density.  Fill a bottle with water.  Add a thin later of oil.  Add a few drops of food coloring.  Sprinkle with salt. The salt is more dense than the oil so is moves through it carrying the color and a drop of oil with it.  The oil bobs back up to the top. I got this idea from http://www.kiwicrate.com/projects/Salt-Volcano/2331

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This year I am planning on having the kids make blocks from milk cartons.  We will stuff them with paper from the recycle bin.  Since we have about 20 kids and drink milk every day we will end up with a lot of blocks!

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Homemade fun

These ideas are from The Activity Mom.  http://www.activity-mom.com/

http://www.activity-mom.com/2013/07/alphabet-constellations.html

http://www.activity-mom.com/2011/05/build-cup-tower.html    I want to decorate it with bottle caps, yarn, blocks and beads to make it look like a layer cake.

http://www.activity-mom.com/2011/01/bubble-popping-letters.html

This recipe is from Mom Trusted

20120921_135945a

Foam Dough = Shaving Cream + Corn Starch

MomTrusted Dream Catcher Sculpture Project  Collage

Dream Catcher Sculpture

Hopefully I have given credit to the correct people. If I have made a  mistake please let me know.

 

More awesome science toys!

I love open ended toys like this. You can use these with cardboard to make your own toys.

This one I can see kids and adults having fun with.

http://www.teachersource.com/product/touch-and-see-square/k-3

These fossils would be great for measuring, sorting, counting and weighing.

http://www.teachersource.com/product/fossil-sorting-kit/k-3

I love that this toy does not take up much room and the track can be changed around.

http://www.teachersource.com/product/wall-coaster/k-3

 

Sparkles, sorting and explosions

I finally got around to making a snowflake with borax and  boiling water.  It worked over night. I like experiments that work right away. It makes a fun sparkly ornament.

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The sorting activity uses pictures from old calendars.  We get at least a dozen calendars from various organizations every year.  The pictures shown are for the categories mammal, insect, reptiles, fish and birds.  I would have labels of the categories for them to match up.  This science center would be done on the rug.  The pictures are large, so they would enjoy crawling around creating a giant graph. This activity could be extended by adding a writing or a verbal “report” on what they found.

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Other categories that I have come up with for the many, many calendar pictures I have are:

  • animals that can swim/fly
  • birds with beaks for meat/nuts/insects/nectar
  • animals bigger than me/smaller than me  (me being a 5 year old)
  • animals that live on land/water/both
  • animals with 0/2/4/6/8/10 legs
  • carnivores/herbivores
  • animals with spots/stripes/both
  • animals that live in salt water/freshwater
  • pictures of animals in various seasons
  • pictures of different habitats.  Ocean/mountain/desert/forest/river/grassland

Can you think of other categories that might work for this project.

The last experiment is the classic mixing vinegar and baking soda.  The balloon was small so you can guess the end result.

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POP!

Science TPT and blogs

I have discovered many other people have created science blogs or activities on teacherspayteachers.  Here are a few that I have found.

http://www.teacherspayteachers.com/Store/Science-For-Kids/Page:2

http://scienceforkidsblog.blogspot.com/ This blog is for K-4.  It is nice to find a science site that is for the little people.  We like to explore science too.

http://prekandksharing.blogspot.com/ The prekandk site has great ideas for many different subjects.  I love the hands on/exploring science ideas and the montessori activities they have.

http://www.girlstart.org/news-and-events/category/stem-hands-on

http://playcountsdenitadinger.blogspot.com/

Simple machines- http://www.squidoo.com/Inventions-and-Simple-achines-Inclined-Planes-Wedges-and-Physics

What blogs have you found for science?

Feeling the Tension

      Surface tension is an interesting thing to play with.  This first experiment I did not think was going yo work.  I put a wet handkerchief over a glass full of water.  Put a rubber band around the handkerchief to hold it in place and turned the glass over.  I thought it was going to dump water everywhere. I was quite surprised.

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     The surface tension of the water in the handkerchief held the water in the glass.  The next time I try this I want to try it with a dry handkerchief.  Will it still work?  How about if after turning over the glass and wet handkerchief I rub a little soap on the handkerchief.  That might be interesting.  Who knew a little piece of cloth could hold back water.

     The next surface tension experiment I did was to “tie” water together.  I poked three holes near the bottom of a plastic container.  Then filled the container with water.  There are three streams of water. 

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     If you put your hand in front of the water and pinch the streams you can make them connect into one stream.  This took a little practice. 

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       This would be a fun activity in a water table or at home in the bathtub.  Does it work with soapy water?

     The third experiment I tried has nothing to do with surface tension.  It is about balance.  I balanced different coins on a ruler.  The heavier coins could be balanced with the lighter ones if they are moved closer to the center.  You could present the challenge of how to balance 10 pennies and 5 quarters. (or what ever number of coins you wanted).  This could be done with other objects of varying weights, but I had coins on hand.

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When I win the lottery

Here are some cool science items that I would buy if I won the lottery.

Ant farm!!!!

So if I do win the lottery I am gonna have some really fun toys!  I might even share them with the kids…….maybe