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Ninth Grade, 3D Printing Projects, Lessons, Activities (8 results)

3D printing, also called additive manufacturing, is a rapidly changing technology that allows for the quick creation of small batches of products. Traditional manufacturing usually involves cutting products out of raw materials or pouring raw materials into molds. In contrast, 3D printing creates a product by adding layer after layer of material using computer-controlled robotics. 3D printing processes are being used to create a growing number of products, from food to custom prosthetics. With the help of different types of 3D printers, additive manufacturing can be used for enormous objects like a house or rocket as well as tiny things the size of a pencil tip.

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Bioprinting: 3D Print with Living Cells! No 3D Printer Required.
Science Fair Project Idea
Scientific Method
Do you get excited about 3D printing technology? Do you like to think about other applications for this technology? 3D printing techniques can also be used with living cells, a method called 3D bioprinting. In this science project, you will explore 3D bioprinting a gelatinous substance with plant seeds. This process is similar to real 3D bioprinting techniques being explored to create tissues and organs. Read more
Design Your Own 3D Printed Optical Illusion
Science Fair Project Idea
Engineering Design Process
The "impossible arrow" is an amazing optical illusion: an arrow that always seems to point to the right, even when you rotate it 180°. If you place the arrow in front of a mirror, however, its reflection points to the left! How does this illusion work? Can you design your own "impossible" shapes? Try this project and find out! Read more
Design and 3D Print Your Own Fabric
STEM Activity
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When you think of 3D printing, you probably think of solid objects. But did you know that you can use a 3D printer to make a flexible fabric? This activity will show you how to design and 3D print your own fabric. Read more
The Impossible Arrow Illusion
STEM Activity
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Make your own 3D printed "impossible arrow" illusion in this fun activity. No matter how many times you spin the arrow around, it always seems to point in the same direction—but its reflection in a mirror points the other way! How does it work? Try it and find out! Read more
Human Perception of the Anomalous Mirror Symmetry Illusion
Science Fair Project Idea
Scientific Method
The Science Buddies project Design Your Own 3D Printed Optical Illusion shows you how to make your own 3D printed "anomalous mirror symmetry" illusions (Figure 1). The illusions are based on the work of Dr. Kokichi Sugihara. You can read his original paper about the illusions in the Bibliography. Figure 1. Two versions of the "impossible arrow" shape that appears to point to the right while its reflection in the mirror appears to point to the left. Which version of… Read more
The Ambiguous Cylinder Illusion
STEM Activity
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Is it a circle? Is it a square? Or is it both? Make your own 3D printed "ambiguous cylinder" illusion in this fun activity. Read more
Design and 3D Print a Snowflake
STEM Activity
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Design and 3D print your own snowflake ornament with Tinkercad in this fun winter-themed STEM activity. Read more
Molecular Models and 3D Printing
Lesson Plan Grade: 9th-12th
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Students are challenged to use computer-aided design (CAD) software to create "complete" 3D-printed molecule models that take into consideration bond angles and lone-pair positioning. To begin, they explore two interactive digital simulations: "build a molecule" and "molecule shapes." This aids them in comparing and contrasting existing molecular modeling approaches—ball-and-stick, space-filling, and valence shell electron pair repulsion (VSEPR)—so as to… Read more
NGSS Performance Expectations:
  • HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
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