Wednesday 30 April 2014

Parachutes take to the air in room 12


Design and Make a Parachute

We know that if you let something go or drop something, it will go down in one direction.

Gravity pulls everything down eg: a stone, a piece of paper or an apple falling from a tree.


We wanted to slow down or reduce the effects of gravity, so we decided to design and make a parachute.


The materials we used were:   plastic bags

                                                       octagon shape

                                                        scissors

                                                        string

                                                        mála                                                     
With the help of some of the older girls, we  drew and cut out a large octagon shape from a plastic bag.
 
 
 
We cut a small hole near the edge of each side.
Then we attactched eight pieces of string of the same length to each of the holes and tied the pieces of string to the mála.


 
The parachutes were dropped from a height to see how well they would work.

 


We went outside to test this out!



Results:

When the parachutes were dropped, the mála pulled down on the strings, causing the plastic to open out. This slowed the parachute down as it fell.



 
 
 

 



 







Tuesday 29 April 2014

Fourth Class at the science Fair


We had so much fun at the Science Fair. all the stands were great, we got to see what all the other classes were doing. It made science so much fun!!
We had out Amazing Triangles stand and lots of people visited our stand to find out what our experiment was about. ( A. 4th Class)



We also got to check out other stands and see what they had been up to. We tried out some experiments and filled in some questionnaires to see what kind of learners we are.( C. 4th Class)




Amazing Triangles!


In fourth class we were looking at shapes,especially the triangle. The triangle is used in many buildings, it adds stability to structures. We looked up some famous structures and we saw lots of triangles in them. 
Take a look at The Eiffel tower, or The Sydney bridge, they are re-enforced by triangles.
We had a go at making our own structures. We used marshmallows and cocktail sticks.(E. 4th Class)






 As we began to make our shapes we soon found out that having triangles in our structures made them stronger! (C. 4th Class)



We had so much fun, you could try it at home using a deck of cards, see how high you can make your structure. (L. 4th Class)


We challenged some of the other kids to create their own structure with cards at the Science Fair. It's not as easy as it looks!! (A. 4th Class)





Science week Report Room 6!



1) Magnetic Cars 


Experiment

·         We made magnetic cars by sticking small circular magnets to our toy cars.
·         We got them to move using the repelling force between the poles of two magnets.
·         We then used three different magnets all different sizes to pull the cars along.
·         We raced out cars along our very own race track

·         We wanted to see which magnet worked best!










·      We had great fun at the science exhibition showing the other classes how to race the cars! We used the strongest magnets. 


How long is our race track? We measured with cubes. Can you guess how long? 


Results:

·      The bar magnet was the strongest
·      Our race track measured 11 cubes
·      Our pencils measured 9 cubes
·      The distance the cars travelled over the race track was longer then the length of our pencils. 


2) Static Electricity 

Experiment

·         We wanted to see which material was the best static
·         We used different material (wool, nylon, cotton, tissue, etc) 
·         We made it a  fair test (using same balloon, same  number of rubs, different material, how many pieces of tissue or Rice Krispies did each material

        pick up?).
We recorded our results on a bar chart. 











Results:

·      We found out that wool and nylon were the best "static's"

3) Moving Air 


Experiment: 


·         We moved different materials by blowing !!
·         We guessed which material would be easiest to move, and which the hardest.
·         We used straws to see if we could move the material by blowing it.













4) Strange sounds 

Experiment

·    We used a balloon and held it against our ears.  
·    We asked our partners to press their lips against the balloon and speak; then we swapped around. 

















We had great fun in the hall, thanks to all classes and teachers  for teaching us lots of new things!!