Materials
Name 2 materials that you could use to build a house
Wood, metal, glass (windows), bricks
What does flexible mean?
Flexible means a material or structure can bend without breaking.
A tent or cabin?
A cabin because it is made of stronger materials. Wood is stronger than fabric.
What natural structure to beavers build? What material do they use?
Beavers build a dam. They are made of wood.
How can forces (like wind or a landslide) effect structures?
Forces can cause structures to break. If there is bad weather or a landslide, it can cause trees to fall down or rocks to crash into houses or bridges.
Wood, cement, bricks, metal
The stability of a structure is its ability to balance and stay fixed in one spot.
A helmet or a sock?
A helmet because they are made of hard plastic. A sock can easily get holes and rip.
What is the purpose of a birds nest?
It is a place for birds to lay their eggs and for their chicks to grow before they can fly.
What is a famous structure that is not very stable?
Paper, fabric, rubber
What does durable mean?
Durable means a material or structure will not get damaged easily.
A bridge made with rotten wood or made from bricks?
A bridge made of bricks is stronger. A bridge made of rotten wood will break easily.
What is the purpose of a fence? Is a fence a natural or built structure?
The purpose of a fence is to keep your belongings including your pets inside your yard and prevent people from coming in. A fence is a built structure.
Which is Ms.Lowy's favourite structure?
Give 2 examples of materials found in nature
Wood/twigs, sand, wool, straw/hay
What does compression mean?
Compression is a force where something is squishes down or pushed together.
A plastic water bottle (not a reusable one) or a plastic helmet?
A plastic helmet because the plastic is thicker. It also has other materials inside to keep it stronger.
What structure does a spider build? Is it strong?
Spiders build webs. They are not very strong because they are made of a weak material (silk).
What is one way we can make a material stronger?
By twisting it or layering the material.
Is cotton a durable fabric?
Cotton is not very durable. It can be cut or ripped very easily.
What does tension mean?
Tension is when something is being pulled apart.
A triangle or a square?
A triangle is the strongest shape. It has a large base.
A house, school, CN tower, a restaurant.
The purpose of a house is somewhere to keep you safe and keep your belongings. A school's purpose is somewhere for kids to learn. The CN Tower's purpose is somewhere for people to visit and see a view of Toronto.
Which is a rod or bar that helps a structure resist pressure (like a tent pole). Is it a strut or a tie?
A strut