Bridges are amazing! Think about it: an average car weighs about a ton and hold. During rush hour, a large bridge like San Francisco's Golden Gate Bridge might have over 600 cars on it at any given moment. That's nearly 1000 tons in motion--a horizontal avalanche of steel, rubber and glass--that the bridge is supporting high overhead. At the same time, the bridge must be able to resist the river's currents or the bay's tides, storm winds, and--at least for the Golden Gate Bridge--the occasional earthquake. And bridges do this, day-in and day-out, year after year, for decades.
The Amazing Bridges Kit helps you learn how bridges are made by creating your very own scale model arch, truss and suspension bridge. The set includes a 48-page instruction booklet with activities, step-by-step instructions, a painting guide and facts about real bridges in the world today. You can cast and surface plaster stones to build an ancient Roman bridge, or pour plaster in the included mold to make "Voussior's", which are stones used for making arch bridges. This is a unique science kit for the classroom when teaching about compression, tension or torsion. Also a great educational toy for any aspiring architect in your family!
Features:
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1 painting guide and photo reference
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6 A-gussets
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4 B-gussets
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4 C-gussets
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29 I-beams
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1 scraper
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1 bridge landscape
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1 Voussoir mold
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1 scraper
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1 piece of sandpaper
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1 bag of plaster
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1 paint brush
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1 set of paint and glue pots
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1 suspension bridge roadbed
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1 truss bridge roadbed
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2 suspension bridge towers
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8 suspension bridge supports
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2 tower bases
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2 anchorages
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2 adhesive squares
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3 wooden sticks
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1 nylon thread
Note: Some of the activities in this set require common household items. Common household items not included.
Box Size: 14.00in (35.56cm) x 12.00in (30.48cm) x 2.75in (6.99cm)
Recommended for ages
8 and older.
Weight: 3 lb 8 oz ( 1.57 kg )
WARNING
CHOKING HAZARD
Small parts. Not for children under 3 yrs.
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