Did You Know?
Tar can help make roads last long!
How Tar is Made
Tar is made by heating stuff like wood.
Where We Use Tar
We use tar to make roads and roofs.
What tar Does
Tar helps to make roads smooth.
It keeps the road from breaking.
Tar can help make roofs strong.
It can be used in some paints.
Some people use it for wood.
Tar can help keep things dry.
More About tar
People have used tar for a long time. It has been used for roads and boats. Long ago, people used tar to keep things dry.
In our lives, we see tar on roads. It helps cars drive smooth. It also helps roofs stay safe from rain.
In the future, we may find new ways to use tar. It can help make new things. Tar is very useful!
How Topics Connect
graph TD
A["Tar"] --> B["Color: Dark Brown or Black"]
A --> C["State: Viscous Liquid"]
A --> D["Composition: Hydrocarbons and Free Carbon"]
A --> E["Production Method: Destructive Distillation"]
E --> F["Sources: Coal, Wood, Petroleum, Peat, Organic Matter"]
What Do These Words Mean?
viscous:thick and sticky
hydrocarbons:compounds made of hydrogen and carbon
destructive distillation:a process that breaks down materials by heating them without air
organic materials:substances that come from living things
carbon-rich:having a lot of carbon in it
