What are chalkboards made out of?
What are chalkboards made of? How are they made?
What type of polymer is present in chalk? What is the polymer of chalk? Where is the source of the chalk for Neolithic chalk balls? What tools are used for chalk carvings by professional artists? The parts of a motherboard, what they do and how they work? What technologies are required to develop a flipboard like product? Why are writings with colored chalks so difficult to erase from blackboard? Why does the screeching sound made by rubbing an uneven chalk on a blackboard occur? What are the different parts of the motherboard and their parts? How are skateboard trucks made? What are the different kinds of skateboards? How do SMART Boards help in the classroom? Why does the sound of chalk across a blackboard give us the chills? What is Flipboard? What are the advantages of wooden pencils over mechanical pencils? Why do artistic gymnasts chalk their hands? How does Flipboard work? What are the effects of eating chalk? What type of pencils did they use to draw in the Renaissance? What are the best ways to create whiteboard animations? What are the best skateboard trucks and why? How are they designed and how are they made? What is enamel paint and how is it made? What are the best skateboard bearings and why? How are they made? What are dry and wet grinders used for in an Indian kitchen? And what about a mixer and blender? Office Supplies: Why are blackboard erasers colored the way they are? How are Popcorners made? What are the best mechanical pencils? What materials are paper clips made of? How is duct tape made? What does baking soda do to paper?