Have you ever made a sandcastle at the beach A sandcastle is a kind of structure STRUCK-sher Buildings are structures where people live work and do all kinds of other activities Sandcastles are temporary structures Waves wash them away quickly Buildings are permanent structures Engineers plan them carefully to last a long long time Bridges towers dams and tunnels are permanent structures too Come along with Space Cat and her friend Dog to discover the secrets of amazing buildings and structures Look for important new words in bold letters 3
Buildings and structures come in many different shapes and sizes but each one is an important part of the world humans made Each one is a place for people to do some important activity such as going to school buying groceries driving across a river or seeing a doctor Without buildings and structures modern life would not be possible Try It Space Cat How many different kinds of buildings and structures can you think of Make a list Think about how they are different from each other Dog Don’t forget to list shelters for your animals 4
What Makes a Building Strong?
Space Cat is curious about how tools, technology, and engineering are used to keep buildings and structures from falling down.
