Bridges that stand firm
Today I can say what a bridge is for and what makes it strong and stable.
A Look back3 min
- 1.
Circle the right name for this shape.
trianglesquarecircle - 2.
Circle the right name for this shape.
squarerectanglecircle - 3.
Circle the shape whose four sides are all the same length.
rectanglesquaretriangle
B Watch me, then you4 min
Ola builds a bridge from sticks. It wobbles and falls over. What shape could she add to stop that?

This is a triangle.
Its three corners hold each other in place.
A triangle is stable, so it does not wobble.
- 1.
Sam's bridge leans to one side. Which word means it stays in place? Circle the word.
stablebendylong
C Your turn7 min
Read each row. Then do the next one.

- 1.
Join each word to its meaning.
engineerstructurestablestill and steady, so it will not tip overa built thing with a job, which keeps its shapesomeone who plans and makes bridges and other things - 2.
Write each bridge card under the right heading.
a path over a stream in a parka road over a valleya railway across a riverCars Trains People on foot - 3.
What must a bridge be so it does not break? Circle the word.
stronglongtallbendy - 4.
Which thing helps a bridge stay stable? Circle it.
a triangle in the framepaint on the sidesa thin stick on its owna round ball on top
Say it out loud: Each card had a different job for the bridge. What does every bridge need to do?
D Spot the mistake3 min

- 1.
Circle the right word for the person who designs and builds the bridge.
engineerstructurestable
E Think deeper4 min

- 1.
Draw a bridge for a narrow stream. Show one part that keeps it stable. Label it with a word from this sheet.