Monday, 23 March 2020
Tuesday, 25 February 2020
what is a community?
What is a community?
Class definition:
A community is a group of people who work together, trying to create a better environment
My definition:
A community is a place where many people live, together they accept and help each other. They belong to this neighbourhood and have many different responsibilities that everyone commits to that makes the neighbourhood a better place.
Thursday, 13 February 2020
Sunday, 15 December 2019
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
Tuesday, 3 December 2019
the ice fishing experiment
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:
- 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.
- When the water is frozen, remove the ice from the cup or tray.
- 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.
- 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.
- 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:
Sunday, 1 December 2019
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.
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