Monday 19 January 2015

Grade 4 - Light and Color


Light and Color – Part 1

Directions:  Clearly describe one experiment in this video by listing the materials and the procedure (how to do the experiment).

 

Type your ideas using MS Word 2010. Use a box and bullets as seen below.

Here’s my example:

Experiment #1   Light travels in straight lines.

 
 
Materials:     
·         Index cards
·         Wooden blocks
·         Tape
·         Hole punch
·         String
·         Ruler
·         Flashlight
·         Folded piece of paper
 
 
Procedure: 
1.       Punch holes in the index cards. Try to make the holes in the same place on each card.
2.       Line up the cards about 30cm to 40cm apart or on an angle.
3.       Tape the folded piece of paper 10cm beyond the third card.
4.       Carefully pass the string through the holes and observe.
5.       Align the flashlight through the holes.
6.       Observe the circle created perfectly on the paper as it passes through all three holes.
 
 

 

Mr. Bartraw

 

Videos:

1.             Light’s path

2.             Refraction activities

3.             Reflection activities

4.             The colors of white

5.             Making a prism

Monday 12 January 2015

Six Kingdoms

Watch the video and complete the chart.


Write a checkmark to match the kingdom with the correct attribute.


Kingdom

Unicellular?
(one cell)

Multicellular?
(many cells)

Cells have a nucleus?

Cells have a cell wall?
Can they make their own food?

Archaea







Bacteria







Protista







Fungi







Plantae







Animalia









Find more great information here...


Enjoy!


Bust An Animal Myth


Your Challenge:

Select one myth and briefly describe it in a MS Word Document. Add a picture from clip art or images.

Research the myth and disprove it (BUST it)! Be sure to give reasons why this myth is untrue. Also add a picture or two in this section.


Here is a list of myths from which you can choose:

·      Porcupines throw their quills
·      Bats are blind
·      Bird bellies explode if they eat rice
·      The average person swallows four spiders in their sleep each year
·      Pigs are filthy
·      One dog year equals seven human years
·      Sharks kill hundreds of people per year
·      Turkey makes you sleepy because it contains a lot of tryptophan
·      Alligators live in the sewers of New York City
·      Ostriches bury their heads in the sand when they are scared
·      If you cut an earthworm in half you will get two worms
·      Touching a frog or toad will give you warts
·      Camels store water in their humps
·      Dogs’ mouths are cleaner than humans
·      It’s bad luck to let a black cat cross your path
·      Bulls charge when they see red
·      Mother birds will reject their babies if they have been touched by humans
·      Opossums hang by their tails
·      Penguins fall backward when they look up at airplanes
·      Elephants are afraid of mice
·      Goldfish have only a three second memory
·      Lemmings commit suicide.


Remember all of the above statements are untruths. Now it’s time to prove it!