My christmas poem

          Christmas poem

Carols being sung lovingly by a cute children's choir 

Hats and stockings being knitted passionately by adoring grandparents   

Ripe sugar plums sweetness makes people shiver with excitement

Icing from delectable gingerbread houses being eaten by hysterical children. 

Santa’s elves in the factory getting ready for the extraordinary take-off

Treats are being handed out merrily to those who have been good 

Mrs clause sorting Santa’s sack making sure that every gift is there

Advent calendars counting down the days with sweet sensations

Snow falls heavily in the northern hemisphere on this thrilling day

the ice fishing experiment

Ice Fishing 

http://www.sciencefun.org/kidszone/experiments/ice-fishing/

Aim/Purpose:

To see how salt can affect ice or react with ice

Materials 

• Small paper cups, bowl or an ice cube tray
• Glass of water
• String (yarn or kite string works great)
• Small stick
• Salt

Steps/Method:

1. Fill the cup or tray up with water and place it in the freezer.  You can also use ice cubes from your freezer and skip this step.
2. When the water is frozen, remove the ice from the cup or tray.
3. Put the ice in the glass or bowl of water. The cube will bob up and down in the water and then float on the top.
4. Place one end of the string from the fishing pole on top of the ice cube and sprinkle salt on the ice where the string is touching. Watch as the water melts slightly and refreezes.
5. After about 10 seconds, carefully lift the ice cube out of the water with the fishing pole. You caught a fish (ice)!

My results:

Salt - The string stuck really well to the ice and pulled the ice cubes up out of the water

Sugar - The string didn’t stick to the ice cubes and none of them were pulled up out of the water.  Some people started to see the ice cubes stick - but it then failed after that.

Flour - THe ice didn’t stick to the string at all 

Pepper - The ice didn’t stick to the string at all 

More salt than normal - The ice still got picked up by the string

Changing the variables

Don’t wet the string before hand 

Use only a little salt

Using lots of salt 

Try to catch the ice using sugar instead of salt 

Try to catch the ice using pepper instead of salt

Try to catch the ice using flour instead of salt

Change the time period that you wait before trying to pick up the string.

Explanation - Why does it work?

Ordinary water freezes at 0% celsius. When you add salt to water it lowers the freezing temperature. The salt you sprinkle on the ice cube lowers its freezing temperature and, since the ice cube can’t get any colder than it already is, it starts to melt. A little pool of water flows over the ice and the string sinks into it. As the ice cube melts, It weakens the salt/water mixture in the little pool; the freezing point goes back up again. The ice refreezes and traps the string.  

Resources:

https://littlebinsforlittlehands.com/ice-fishing-winter-science/

https://raisinglifelonglearners.com/fishing-for-ice-science-experiment/

https://sites.google.com/site/sciencekiddoexperiments/fishing-for-ice

https://www.sciencekiddo.com/salt-melts-ice-experiment/

https://www.adabofgluewilldo.com/ice-fishing-science-experiment/

https://www.rookieparenting.com/why-does-salt-melt-ice-freezing-point-experiment/

https://whatsubstancemeltsicefastest.weebly.com/about.html

subterranean and caves rm-7 inquiry rotation

Subterranean  and caves inquiry

Define subterranean-

Subterranean is existing, occurring or done underneath the earth’s surface.

Define caves -

A cave is a natural underground chamber in a hillside or cliff.

Draw a diagram of stalactites, stalagmites, and columns

How stalactites, stalagmites, and columns are formed

Stalactites and stalagmites

Stalactites are formed when water containing dissolved calcium bicarbonate from the rock limestone drips from the ceiling making it form the roof. Stalagmites form when the water that drips from the ceiling falls to the ground.

Columns

Columns are formed when stalagmites and stalactites are fused together.