TECH

Frame Structure

A structure made up of different parts joined together to support a load.

Beam

A horizontal member that supports weight across a space.

Column

A vertical member that supports the beam and carries weight to the ground.

Truss Bridge

A bridge made of triangles which is strong and lightweight.

Suspension Bridge

A bridge where the road hangs from cables attached to towers, used for very long distances.

Structural Failure

Occurs when a structure breaks, bends, collapses, or can no longer support its load.

Natural Materials

Materials that come directly from nature, such as wood and cotton.

Synthetic Materials

Materials made by humans, like plastic and nylon.

Recycling

The process of turning old materials into new products.

Packaging

Materials used to contain, protect, and transport products.

3Rs

Reduce, Reuse, Recycle - principles to help minimize waste.

Advantages of Plastic

Lightweight, cheap, waterproof, strong, and easy to shape.

Disadvantages of Plastic

Causes pollution, takes many years to decompose, harms animals, uses non-renewable resources, and is difficult to dispose of.

PLA (Polylactic Acid)

A biodegradable plastic made from plants such as corn.

PHA (Polyhydroxyalkanoates)

A type of plastic produced by microorganisms that breaks down naturally.

Beam Bridge

The simplest type of bridge supported by piers or columns.

Arch Bridge

A bridge that uses an arch shape to support weight.

Cantilever Bridge

A bridge built using beams that project from supports.

Environmental Impact

The effect of human activities on the environment, including pollution and resource depletion.