We had a small class today since a group of children were away at the inter school rugby.
Since we had a small class we decided to have fun with levers and made mini catapults and then experimented with different ways to make them go further.
Here are some pictures of our catapults:
All you need is: 10 iceblock sticks 4 rubber bands A bottle cap lid
A hot glue gun A bead to fire
A catapult relies on torque, which is a function of the length of the arm and the speed at which it moves, to provide angular momentum to the projectile.
After the bead leaves the catapult, the only forces acting on it are gravity and wind resistance.
Experiment with how you can create a better resistance to get the bead to leave the catapult fire further.
This week we have been learning about simple machines:
We have learnt so far that there are 6 different types of simple machines-
Screws, Levers, Wheels and Axles, Pulleys, Incline planes, and Wedges.
Today we were learning how to complete a fair test.
We wanted to find out if we move the fulcrum on a lever can we make the ping pong ball fly further?
Here are some photos of us experimenting with our levers:
We found out that the further away the fulcrum is from the cup the further the ball would fly.
We also found out the if you put too much pressure on the lever it will fly high but not too far.
Also if you put too much pressure on the lever it will snap !
(Only one meter ruler was snapped in the making of this experiment)
Here is a quick video of some of our experimenting:
This term we have a very busy term ahead with lots of events:
Here are a few:
-Travelwise- Road safety week in Week 2 (For all information about this check out the travelwise blog http://leabanktravelwise.blogspot.co.nz/ )
-Spelling Bee challenge- Words will be posted soon
-Inter school Rugby (week 4) and soccer (week 3) (for some students only)
-Science Road show trip (for some students only)
-MOTAT Trip to support our learning about small machines
-Parent teacher interviews
-School reports going home at the end of this term.
-Culture Groups starting next week (Performances in term 3)
-Young Leaders conference in week 4
Not to mention all the awesome learning we will be doing in our classrooms!!!
What a busy term we will have! You will have to make sure you all have great attendance so you dont miss out on anything!