3D vs 2D shapes practice test for kids

📚 Topic Summary

Let's learn about 2D and 3D shapes! 2D shapes are flat, like a drawing on paper. They only have length and width. Think of a square or a circle. 3D shapes are solid, meaning they have length, width, and height. They take up space, like a ball or a cube. Knowing the difference helps us understand the world around us!

This practice test will help you differentiate between 2D and 3D shapes through vocabulary, fill-in-the-blank questions, and critical thinking questions.

🧮 Part A: Vocabulary

Match the term with its definition. Write the correct letter next to each term:

1. Term: Cube
2. Term: Circle
3. Term: Sphere
4. Term: Square
5. Term: Cylinder

1. Definition A: A 3D shape with all points on its surface equidistant from its center.
2. Definition B: A 2D shape with four equal sides and four right angles.
3. Definition C: A 2D shape with all points equidistant from its center.
4. Definition D: A 3D shape with six square faces.
5. Definition E: A 3D shape with two parallel circular bases connected by a curved surface.

Write your answers here:

• Cube: ____
• Circle: ____
• Sphere: ____
• Square: ____
• Cylinder: ____

✍️ Part B: Fill in the Blanks

Complete the following sentences using the words provided (2D, 3D, flat, solid, space):

A ________ shape is ________ and only has length and width. A ________ shape is ________ and takes up ________.

🤔 Part C: Critical Thinking

Explain, in your own words, why it's important to be able to tell the difference between 2D and 3D shapes. Give an example of how this knowledge can help you in everyday life.