
To make a 3-D object, you start with a model. A model is made on a computer. It shows what the object will look like. The computer tells the printer how to make it.
Photo Credit: FrameStockFootages/Shutterstock/
Many animals help plants in this way. The most common … read more
Phillis Wheatley was one of American’s best poets. She wrote … read more
The venus flytrap is another strange plant. It grows in … read more
© 2026 McGraw-Hill Education. All Rights Reserved.