A1 Guided Inquiry

Did you ever?

Did you ever poems:

Did you ever 

Go to work with your Dad?

Hands digging

Pipe leaking 

Water flowing.

Try it.

Did you ever

Go to the sand dunes?

Sand tickling

Hands gripping 

Mum watching 

Board sliding.

Try it.

All about Heenali

spaghetti bridge

strenth and weakness of bridges

Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch to the supports at each end. These supports, called the abutments, carry the load and keep the ends of the bridge from spreading out.

A beam or "girder" bridge is the simplest and most inexpensive kind of bridge. In its most basic form, a beam bridge consists of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight down on the piers.The beam itself must be strong so that it doesn't bend under its own weight and the added weight of crossing traffic. When a load pushes down on the beam, the beam's top edge is pushed together while the bottom edge is stretched .

Suspension bridges can span distances from 2,000 to 7,000 feet—far longer than any other kind of bridge. They also tend to be the most expensive to build. True to its name, a suspension bridge suspends the roadway from huge main cables, which extend from one end of the bridge to the other. These cables rest on top of high towers and are secured at each end by anchorages.

A cantilever bridge is like a springboard, with a beam (called the cantilever) projecting horizontally in space, and attached on one side. The pier to which it is attached has another beam in the opposite direction to counterbalance the weight of the cantilever. This supporting arm is called the anchor arm, as it is anchored to a solid support on its opposite end. Most cantilever bridges have two cantilevers.

Bridge Forces

        Cross country

Ready,steady,go said Mrs Leitch then ‘BANG’ went the starter blocks cracks together like a clap of thunder.

Catching up my breath. Trying to focus and trying not to fall in puddles or over sticks and stones.

Trying to remember my goal and focus on my running.

Hearing my name and hearing spectators waving and cheering, i felt amazed and relieved that i’m at the  finish line and proud

Of myself i felt relaxed after.
YAY I TRIED MY BEST

                 By HEENALI MAHARAJ Y2 CLASS 27