๐ Topic Summary
3D shapes are all around us! Unlike flat 2D shapes, 3D shapes have length, width, and height. The flat surfaces of a 3D shape are called faces. This activity will help you explore different 3D shapes and count their faces. A cube, for example, has six faces, all of which are squares. Understanding faces helps us understand more about the shape itself.
Let's get started with our activity, and get ready to explore the faces of these 3D shapes!
๐งฎ Part A: Vocabulary
Match the following terms with their correct definitions:
| Term |
Definition |
| 1. Face |
A. A 3D shape with a circular base and a point at the top. |
| 2. Cube |
B. A flat surface on a 3D shape. |
| 3. Sphere |
C. A 3D shape with six square faces. |
| 4. Cone |
D. A perfectly round 3D shape, like a ball. |
| 5. Edge |
E. Where two faces meet on a 3D shape. |
โ๏ธ Part B: Fill in the Blanks
Read the paragraph below and fill in the missing words.
A ________ is a 3D shape with two circular faces and a curved surface. A ________ has one circular face and a pointed top. A ________ has all faces that are squares.
๐ค Part C: Critical Thinking
Imagine you are building a robot out of 3D shapes. Which shapes would be best for the robot's body, and why? Explain your reasoning. What other shapes could you use?